Pub Date : 2020-01-01DOI: 10.26565/2220-8089-2020-38-06
The article examines the transition of Ukraine from the periphery of the modern world-economy to the semi-periphery. Several global variants of such a transition have been analysed and a hybrid version has been proposed. Based on the analysis of Ukrainian export-import operations, the conclusion of our previous work of Ukraine being one of the periphery states has been confirmed. According to the global practice, for such states, there are two options for the transition to the semi-periphery. The first of them is the implementation of such systemic reforms that will allow for a considerable time to redistribute profits from international operations in their favour. This option is implemented in two forms. The first is authoritarian modernization (examples – Singapore, China). The second is reforms carried out with the broad support of the countries of the centre (an example is the European and Euro-Atlantic integration of the Central Europe countries). The second option is cooperation with the hegemonic state (USA) in the field of security and maintenance of order, for which such a state receives various support and access to the American sales market (examples - South Korea, Japan and the FRG, partly Turkey and Chile). It was concluded that the above options are unacceptable in a difficult Ukrainian case (chronic under-reforming, low quality of the Ukrainian elite, internal problems in the EU and the United States, a protracted conflict with the Russian Federation, etc.), thus there is a need for such an option that would combine the elements of all of the above – that is, a hybrid one. The proposed option assumes, firstly, the introduction of qualitatively new representatives into the Ukrainian elite, capable for systemic reforms, secondly, the continuation of European integration efforts, thirdly, strengthening cooperation with the United States in the security sphere, and fourthly, the activation of regional integration projects (primarily with Turkey and Poland). If efforts in one of the designated areas fail, then resources can be redirected to activate others without wasting precious time. As a conclusion, it was stated that the proposed hybrid version of Ukraine’s transition from the periphery to the semi-periphery looks like the only realistic way for Ukraine.
{"title":"HYBRID VERSION OF UKRAINE TRANSITION FROM PERIPHERY OF WORLD-ECONOMY TO SEMI-PERIPHERY","authors":"","doi":"10.26565/2220-8089-2020-38-06","DOIUrl":"https://doi.org/10.26565/2220-8089-2020-38-06","url":null,"abstract":"The article examines the transition of Ukraine from the periphery of the modern world-economy to the semi-periphery. Several global variants of such a transition have been analysed and a hybrid version has been proposed. Based on the analysis of Ukrainian export-import operations, the conclusion of our previous work of Ukraine being one of the periphery states has been confirmed. According to the global practice, for such states, there are two options for the transition to the semi-periphery. The first of them is the implementation of such systemic reforms that will allow for a considerable time to redistribute profits from international operations in their favour. This option is implemented in two forms. The first is authoritarian modernization (examples – Singapore, China). The second is reforms carried out with the broad support of the countries of the centre (an example is the European and Euro-Atlantic integration of the Central Europe countries). The second option is cooperation with the hegemonic state (USA) in the field of security and maintenance of order, for which such a state receives various support and access to the American sales market (examples - South Korea, Japan and the FRG, partly Turkey and Chile). It was concluded that the above options are unacceptable in a difficult Ukrainian case (chronic under-reforming, low quality of the Ukrainian elite, internal problems in the EU and the United States, a protracted conflict with the Russian Federation, etc.), thus there is a need for such an option that would combine the elements of all of the above – that is, a hybrid one. The proposed option assumes, firstly, the introduction of qualitatively new representatives into the Ukrainian elite, capable for systemic reforms, secondly, the continuation of European integration efforts, thirdly, strengthening cooperation with the United States in the security sphere, and fourthly, the activation of regional integration projects (primarily with Turkey and Poland). If efforts in one of the designated areas fail, then resources can be redirected to activate others without wasting precious time. As a conclusion, it was stated that the proposed hybrid version of Ukraine’s transition from the periphery to the semi-periphery looks like the only realistic way for Ukraine.","PeriodicalId":34206,"journal":{"name":"Visnik Kharkivs''kogo Natsional''nogo Universitetu Imeni VN Karazina Seriia Biologiia","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86196598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.26565/2075-5457-2020-34-3
The accumulation of heme in the organism under the influence of various hemolytic factors can cause the development of oxidative stress with the activation of free radical processes, oxidative damage to macromolecules and supramolecular complexes of cells and tissues. Under these conditions, the antioxidant defense system is activated in the organism, an important link of which is thiol compounds, particularly glutathione. Under such conditions, the processes of nitrogen and carbohydrate metabolism associated with the formation of adaptive reactions in response to stress have been investigated insufficiently. The aim of this work is to study some indicators of nitrogen and carbohydrate metabolism during the administration of hemin and the combined administration of hemin and glutathione to clarify the role of this antioxidant in the possible correction of metabolic processes. The subjects of the study were mature outbred albino male rats that received intraperitoneal injections of hemin (50 mg/kg) and glutathione (500 mg/kg) solutions, which was administered 0.5 hours before the introduction of hemin. The animals were tested 2 hours after hemin administration. The content of total and non-protein -SH groups, and the activity of gamma-glutamyltranspeptidase (GGT) in liver and kidney homogenates, glycogen content and tyrosinaminotransferase (TAT) activity in liver homogenate were studied. The content of reduced -SH groups can be an indicator of pro-antioxidant balance, GGT activity is one of the indicators of glutathione metabolism, and glycogen content and TAT activity in liver are hormone-sensitive indicators. The introduction of hemin caused a decrease in the content of total and non-protein -SH groups, glycogen content and an increase in TAT activity in liver, as well as an increase in the activity of GGT in this organ. Administration of glutathione to rats 30 minutes before the administration of hemin prevented shifts in these parameters in liver caused by the administration of hemin alone. In kidneys, an increase in the content of total -SH groups was found after the combined administration of glutathione and hemin compared with the effect of hemin alone. The results of this study may indicate a sensitivity of nitrogen and carbohydrate metabolism in rat organs to the effect of hemin and the corrective effect of glutathione under these conditions, probably mediated through an increase in the thiol component of the antioxidant defense system.
{"title":"Effect of hemin and glutathione on some indicators of nitrogen and carbohydrate metabolism in rats","authors":"","doi":"10.26565/2075-5457-2020-34-3","DOIUrl":"https://doi.org/10.26565/2075-5457-2020-34-3","url":null,"abstract":"The accumulation of heme in the organism under the influence of various hemolytic factors can cause the development of oxidative stress with the activation of free radical processes, oxidative damage to macromolecules and supramolecular complexes of cells and tissues. Under these conditions, the antioxidant defense system is activated in the organism, an important link of which is thiol compounds, particularly glutathione. Under such conditions, the processes of nitrogen and carbohydrate metabolism associated with the formation of adaptive reactions in response to stress have been investigated insufficiently. The aim of this work is to study some indicators of nitrogen and carbohydrate metabolism during the administration of hemin and the combined administration of hemin and glutathione to clarify the role of this antioxidant in the possible correction of metabolic processes. The subjects of the study were mature outbred albino male rats that received intraperitoneal injections of hemin (50 mg/kg) and glutathione (500 mg/kg) solutions, which was administered 0.5 hours before the introduction of hemin. The animals were tested 2 hours after hemin administration. The content of total and non-protein -SH groups, and the activity of gamma-glutamyltranspeptidase (GGT) in liver and kidney homogenates, glycogen content and tyrosinaminotransferase (TAT) activity in liver homogenate were studied. The content of reduced -SH groups can be an indicator of pro-antioxidant balance, GGT activity is one of the indicators of glutathione metabolism, and glycogen content and TAT activity in liver are hormone-sensitive indicators. The introduction of hemin caused a decrease in the content of total and non-protein -SH groups, glycogen content and an increase in TAT activity in liver, as well as an increase in the activity of GGT in this organ. Administration of glutathione to rats 30 minutes before the administration of hemin prevented shifts in these parameters in liver caused by the administration of hemin alone. In kidneys, an increase in the content of total -SH groups was found after the combined administration of glutathione and hemin compared with the effect of hemin alone. The results of this study may indicate a sensitivity of nitrogen and carbohydrate metabolism in rat organs to the effect of hemin and the corrective effect of glutathione under these conditions, probably mediated through an increase in the thiol component of the antioxidant defense system.","PeriodicalId":34206,"journal":{"name":"Visnik Kharkivs''kogo Natsional''nogo Universitetu Imeni VN Karazina Seriia Biologiia","volume":"77 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89856439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.26565/2075-5457-2020-35-3
The current state of the flora of the botanical preserve “Honcharivskyi” (Svatove District, Luhansk Region) is analysed. The preserve includes three areas on the right-bank slopes of the Kobylka and the Krasna rivers with outcrops of chalk bedrocks. The study was conducted in summer and autumn 2019. Four expeditionary trips were organized to the areas near the villages of Oborotnivka and Nauholne. Floristic descriptions made by the line-transect method saved as research material. Identification of floristic composition was carried out by the plant species inventory along the transects. As a result, an annotated list of 85 species of vascular plants of 74 genera, 29 families, 3 classes and 2 divisions was compiled. In terms of systematic composition, the spectrum of main families is headed by Asteraceae (22 species, 25.9 % of the flora), Poaceae (9 species, 10.6 %), and Lamiaceae 7 (species, 8.2 %). These families include a significant number of ruderal, steppe and calcephilous species. Hemicryptophytes, represented by herbaceous plants of steppe meadows, prevail in the flora biomorphic structure (51 species, 60 %). Chamaephytes (in our case study the subshrubs, growing on steppe slopes, chalk and limestone outcrops, viz., Genista tinctoria L., Hyssopus cretaceus Dubjan., Teucrium polium L. etc.) are least presented (6 species, 7.1 %). A cenomorph analysis revealed predominance of the ruderal species (35; 41.2 %) due to grazing, trampling and economic activity in the study area. The flora ecological analysis was based on five main factors, which reflect climate and soil properties. In terms of soil acidity, the neutrophilic species formed a dominating group (53 species, 63 %), in terms of carbonate compounds – the acarbonatophilic (34 species, 40 %), in terms of soil salinity – the eutrophytic (36 species, 43 %), in terms of climate thermal regime – the sub-mesothermic (59 species, 70 %), and in terms of climate continentality – the hemicontinental ones (43 species, 52 %). Most recorded species prefer slightly acidic and/or neutral, rich in salts and carbonates, meadow like and common chernozems of steppe meadows and steppes. Twelve species of 11 genera and 7 families are of conservation concern. Of these, 10 species are listed in Red Data Book of Ukraine, five species are in the European Red List of Vascular Plants (Hyssopus cretaceus Dubjan., Artemisia hololeuca M. Bieb. ex Besser, Centaurea donetzica Klok., Cephalaria litvinivii Bobr., Hedysarum cretaceum Fisch.), and two species are in the Red List of plants of Lugansk Region (Thymus calcareus Klokov & Des.-Shost. and Potentilla erecta (L.) Raeusch.).
{"title":"The flora of the botanical preserve “Honcharivskyi” (Luhansk Region, Ukraine)","authors":"","doi":"10.26565/2075-5457-2020-35-3","DOIUrl":"https://doi.org/10.26565/2075-5457-2020-35-3","url":null,"abstract":"The current state of the flora of the botanical preserve “Honcharivskyi” (Svatove District, Luhansk Region) is analysed. The preserve includes three areas on the right-bank slopes of the Kobylka and the Krasna rivers with outcrops of chalk bedrocks. The study was conducted in summer and autumn 2019. Four expeditionary trips were organized to the areas near the villages of Oborotnivka and Nauholne. Floristic descriptions made by the line-transect method saved as research material. Identification of floristic composition was carried out by the plant species inventory along the transects. As a result, an annotated list of 85 species of vascular plants of 74 genera, 29 families, 3 classes and 2 divisions was compiled. In terms of systematic composition, the spectrum of main families is headed by Asteraceae (22 species, 25.9 % of the flora), Poaceae (9 species, 10.6 %), and Lamiaceae 7 (species, 8.2 %). These families include a significant number of ruderal, steppe and calcephilous species. Hemicryptophytes, represented by herbaceous plants of steppe meadows, prevail in the flora biomorphic structure (51 species, 60 %). Chamaephytes (in our case study the subshrubs, growing on steppe slopes, chalk and limestone outcrops, viz., Genista tinctoria L., Hyssopus cretaceus Dubjan., Teucrium polium L. etc.) are least presented (6 species, 7.1 %). A cenomorph analysis revealed predominance of the ruderal species (35; 41.2 %) due to grazing, trampling and economic activity in the study area. The flora ecological analysis was based on five main factors, which reflect climate and soil properties. In terms of soil acidity, the neutrophilic species formed a dominating group (53 species, 63 %), in terms of carbonate compounds – the acarbonatophilic (34 species, 40 %), in terms of soil salinity – the eutrophytic (36 species, 43 %), in terms of climate thermal regime – the sub-mesothermic (59 species, 70 %), and in terms of climate continentality – the hemicontinental ones (43 species, 52 %). Most recorded species prefer slightly acidic and/or neutral, rich in salts and carbonates, meadow like and common chernozems of steppe meadows and steppes. Twelve species of 11 genera and 7 families are of conservation concern. Of these, 10 species are listed in Red Data Book of Ukraine, five species are in the European Red List of Vascular Plants (Hyssopus cretaceus Dubjan., Artemisia hololeuca M. Bieb. ex Besser, Centaurea donetzica Klok., Cephalaria litvinivii Bobr., Hedysarum cretaceum Fisch.), and two species are in the Red List of plants of Lugansk Region (Thymus calcareus Klokov & Des.-Shost. and Potentilla erecta (L.) Raeusch.).","PeriodicalId":34206,"journal":{"name":"Visnik Kharkivs''kogo Natsional''nogo Universitetu Imeni VN Karazina Seriia Biologiia","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89775214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.26565/2075-5457-2020-34-5
We ascertained the features of formation of self-renewing and self-sustaining of the local population of the Mediterranean introducent Hyssopus officinalis L. in the extremal ecologic and edaphic conditions of an iron ore dump in Kryvyi Rih Area, seeds of which have been sown on the area of 1 ha about 30 years ago. It was found that the species, during this period after reaching the reproductive phase of development, has taken the area of the dump of about 3 ha and, in fact, it formed the isolated population. This species annually multiplied by seed, and spread on the areas of ore dump, where almost no vegetation cover, in fact, performing a pioneer function. At the site, where the initial sowing of H. officinalis seeds was carried out, the phytocoenosis forms now; this phytocoenosis, according to its floristic composition, approaches the natural steppe, but the introduced species are gradually ousted. In habitats occupied by the species due to its spontaneous distribution, successional processes are at an initial stage. Within some of the population loci of H. officinalis, we have found up to 513 adult individuals with the number of generative sprouts from 20 to 70 per a plant. Flowers are formed on these sprouts in average from 160.2 to 181.6. Average seed productivity is 60 % of theoretically possible rate, and the seeds from the parent species extend to a distance of 1–5 m. In a compact areas where H. officinalis grows, there are plants of all the age groups – from the seedlings to the subsenile. H. officinalis has naturalized in the dump conditions, and its local population is а resistant, full-grouped; it develops under the conditions where other species are not competitive. Generatively developed plants are higher than 90 cm and have good vital state. The species on the dump shows pioneering features; it is not aggressive and can be displaced by zonal vegetation; thus, it does not pose invasion risk. H. officinalis can be recommended for the revegetation of iron ore dumps, or their large decommissioned areas, without technical preconditioning, only by direct sowing of the seeds into the dump rocks, to promote its spread artificially.
{"title":"Formation and self-maintenance of the population Hyssopus officinalis L. in conditions of the iron ore dump of Krуvyі Rih area","authors":"","doi":"10.26565/2075-5457-2020-34-5","DOIUrl":"https://doi.org/10.26565/2075-5457-2020-34-5","url":null,"abstract":"We ascertained the features of formation of self-renewing and self-sustaining of the local population of the Mediterranean introducent Hyssopus officinalis L. in the extremal ecologic and edaphic conditions of an iron ore dump in Kryvyi Rih Area, seeds of which have been sown on the area of 1 ha about 30 years ago. It was found that the species, during this period after reaching the reproductive phase of development, has taken the area of the dump of about 3 ha and, in fact, it formed the isolated population. This species annually multiplied by seed, and spread on the areas of ore dump, where almost no vegetation cover, in fact, performing a pioneer function. At the site, where the initial sowing of H. officinalis seeds was carried out, the phytocoenosis forms now; this phytocoenosis, according to its floristic composition, approaches the natural steppe, but the introduced species are gradually ousted. In habitats occupied by the species due to its spontaneous distribution, successional processes are at an initial stage. Within some of the population loci of H. officinalis, we have found up to 513 adult individuals with the number of generative sprouts from 20 to 70 per a plant. Flowers are formed on these sprouts in average from 160.2 to 181.6. Average seed productivity is 60 % of theoretically possible rate, and the seeds from the parent species extend to a distance of 1–5 m. In a compact areas where H. officinalis grows, there are plants of all the age groups – from the seedlings to the subsenile. H. officinalis has naturalized in the dump conditions, and its local population is а resistant, full-grouped; it develops under the conditions where other species are not competitive. Generatively developed plants are higher than 90 cm and have good vital state. The species on the dump shows pioneering features; it is not aggressive and can be displaced by zonal vegetation; thus, it does not pose invasion risk. H. officinalis can be recommended for the revegetation of iron ore dumps, or their large decommissioned areas, without technical preconditioning, only by direct sowing of the seeds into the dump rocks, to promote its spread artificially.","PeriodicalId":34206,"journal":{"name":"Visnik Kharkivs''kogo Natsional''nogo Universitetu Imeni VN Karazina Seriia Biologiia","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90796959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.26565/2075-5457-2020-34-2
Oxidative stress is considered to be the main mechanism of cadmium ions toxic effect on the cells and is caused by cadmium, as a non-transition metal, indirectly. Oxidative damage to cells due to the action of cadmium ions is tissue-specific and is associated with the antioxidant system inhibition, free heme accumulation and essential metals substitution in metalloproteins. Nitrogen monoxide (NO) exhibits high affinity for heme and proteins and peptides sulfhydryl groups, known to be the main molecular targets for cadmium ions. Taking all the above-mentioned into account, the aim of this work was to study the effect of NO radicals donors on the prooxidant-antioxidant state of mammalian tissues under oxidative stress caused by cadmium chloride administration in vivo. Male Wistar rats weighing 160–200 g were used in the study. CdCl2 was administered subcutaneously at a dose of 14 mg/kg body weight. The direct donor of the NO radical sodium nitroprusside (SNP, 1 mg/kg mass) and the substrate of the NO synthase reaction L-arginine (600 mg/kg mass) were administered intraperitoneally. In order to study the corrective action, donors of the NO radical were injected 0.5 h before the cadmium salt. The objects of investigation were blood plasma and liver, kidneys and spleen homogenates of rats. The cadmium chloride treatment caused a number of prooxidant-antioxidant balance disorders, most of which were revealed a day after injection. The accumulation of lipid peroxidation products was found in rat serum, liver, and spleen. The enhancement of prooxidant processes in these tissues may originate from cadmium ions and hemolysis products entry. In the antioxidant system, significant changes were observed under cadmium action only in the liver: an increase in the reduced glutathione content and SOD activity and a decrease in catalase activity. The precursor of nitric oxide L-arginine did not change the basal level of prooxidant-antioxidant parameters, and in most cases did not affect their dynamics in the organs studied after cadmium chloride administration. A direct NO donor, sodium nitroprusside, acted in liver and spleen mostly as a prooxidant. In liver, the injection of only nitroprusside, as well as the combined administration of SNP and CdCl2, led to free radical processes activation just in two hours. In spleen, the combined treatment by SNP and cadmium salt also caused an earlier development of oxidative stress, as witnessed by an increase in lipid hydroperoxides level and a decrease in reduced glutathione content. Therefore, the injection of a direct NO donor, sodium nitroprusside, and a substrate of NO synthase, L-arginine, in selected doses has insignificant corrective action on cadmium-induced oxidative stress in the liver, kidneys and spleen. However, in blood both donors of NO effectively prevented the accumulation of lipid peroxidation products under CdCl2 treatment; in addition, L-arginine significantly reduced the lactate dehydrogenase release,
{"title":"The effect of nitrogen monoxide donors on the indexes of cadmium-induced oxidative stress in different rat tissues","authors":"","doi":"10.26565/2075-5457-2020-34-2","DOIUrl":"https://doi.org/10.26565/2075-5457-2020-34-2","url":null,"abstract":"Oxidative stress is considered to be the main mechanism of cadmium ions toxic effect on the cells and is caused by cadmium, as a non-transition metal, indirectly. Oxidative damage to cells due to the action of cadmium ions is tissue-specific and is associated with the antioxidant system inhibition, free heme accumulation and essential metals substitution in metalloproteins. Nitrogen monoxide (NO) exhibits high affinity for heme and proteins and peptides sulfhydryl groups, known to be the main molecular targets for cadmium ions. Taking all the above-mentioned into account, the aim of this work was to study the effect of NO radicals donors on the prooxidant-antioxidant state of mammalian tissues under oxidative stress caused by cadmium chloride administration in vivo. Male Wistar rats weighing 160–200 g were used in the study. CdCl2 was administered subcutaneously at a dose of 14 mg/kg body weight. The direct donor of the NO radical sodium nitroprusside (SNP, 1 mg/kg mass) and the substrate of the NO synthase reaction L-arginine (600 mg/kg mass) were administered intraperitoneally. In order to study the corrective action, donors of the NO radical were injected 0.5 h before the cadmium salt. The objects of investigation were blood plasma and liver, kidneys and spleen homogenates of rats. The cadmium chloride treatment caused a number of prooxidant-antioxidant balance disorders, most of which were revealed a day after injection. The accumulation of lipid peroxidation products was found in rat serum, liver, and spleen. The enhancement of prooxidant processes in these tissues may originate from cadmium ions and hemolysis products entry. In the antioxidant system, significant changes were observed under cadmium action only in the liver: an increase in the reduced glutathione content and SOD activity and a decrease in catalase activity. The precursor of nitric oxide L-arginine did not change the basal level of prooxidant-antioxidant parameters, and in most cases did not affect their dynamics in the organs studied after cadmium chloride administration. A direct NO donor, sodium nitroprusside, acted in liver and spleen mostly as a prooxidant. In liver, the injection of only nitroprusside, as well as the combined administration of SNP and CdCl2, led to free radical processes activation just in two hours. In spleen, the combined treatment by SNP and cadmium salt also caused an earlier development of oxidative stress, as witnessed by an increase in lipid hydroperoxides level and a decrease in reduced glutathione content. Therefore, the injection of a direct NO donor, sodium nitroprusside, and a substrate of NO synthase, L-arginine, in selected doses has insignificant corrective action on cadmium-induced oxidative stress in the liver, kidneys and spleen. However, in blood both donors of NO effectively prevented the accumulation of lipid peroxidation products under CdCl2 treatment; in addition, L-arginine significantly reduced the lactate dehydrogenase release,","PeriodicalId":34206,"journal":{"name":"Visnik Kharkivs''kogo Natsional''nogo Universitetu Imeni VN Karazina Seriia Biologiia","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72862705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.26565/2075-5457-2020-34-16
The results of a study of the effect of red light irradiation (660 nm) on the proliferative activity of root meristems and growth reactions of plant seedlings with contrast photoperiodic reactions are presented in this paper. Plants of the family Fabaceae contrasting in the photoperiodic reaction were used as plant material: long-day plants (LDP) of peas (Pisum sativum L.) of the Metsenat variety and short-day plants (SDP) of soybean (Glycine max (L.) Merr.) of the Korsak variety. Phytochromes were activated by irradiating the aerial part of the experimental seedlings with monochromatic red light (RL) of 660 nm using an LED matrix for 30 minutes for 5 days. The proliferative activity of meristem cells was determined by analysis of the mitotic index (MI). The growth reaction was studied by linear growth indicators: the total length of the seedling, the length of the aerial part and roots, and the integral indicator of growth and biosynthetic processes – the accumulation of biomass. According to the results of the experiments, it was shown that the mitotic activity of root meristems under the influence of red light on the aerial part in seedlings of the LDP of pea Metsenat decreased slightly – by 8 %, and in the seedlings of the SDP of soybean Korsak increased significantly – by 47 %. The linear growth and accumulation of biomass in the aerial part under the action of RL irradiation in seedlings of pea of the Metsenat variety and soybean of the Korsak variety decreased, and this effect was more pronounced in soybean than in pea. During irradiation of RL the linear root growth and their biomass accumulation in seedlings of LDP pea decreased slightly, while at the same time, these processes in the roots of soybean SDP seedlings were significantly stimulated. Under the influence of RL in pea seedlings, the growth rate did not change in the length of the aerial part, but in the roots increased, while the rate of biomass accumulation by them decreased. In soybean seedlings during RL irradiation, the growth rate of both the aerial part and the roots decreased, the biomass accumulation rate by the aerial part increased, and by the roots – decreased. LDP of pea Metsenat and SDP of soybean Korsak variety differ in the nature of the reaction of growth processes in response to irradiation of RL. The activation of the phytochrome system in the aerial part causes changes in the proliferative activity and growth processes of the roots, which indicate a systemic response of the plant organism to the action of this factor. The relationship of the photoperiodic reaction of plants with the realization of phytochrome signal in the plant by activating or inhibiting the proliferative activity of root meristems and growth reactions is discussed.
本文用对比光周期反应的方法研究了660 nm红光照射对植物根系分生组织增殖活性和幼苗生长反应的影响。以在光周期反应中形成对比的豆科植物为植物材料:Metsenat品种豌豆(Pisum sativum L.)的长日照植株(LDP)和大豆(Glycine max (L.))的短日照植株(SDP)。科萨克品种的Merr.)。利用LED基质，用660 nm的单色红光(RL)照射实验幼苗的地上部分30分钟，连续5天激活光敏色素。分生组织细胞的增殖活性通过有丝分裂指数(MI)测定。通过幼苗总长度、地上部和根系长度等线性生长指标和生物量积累等生长和生物合成过程的综合指标来研究生长反应。根据实验结果,结果表明,根分生组织的有丝分裂活动的影响下红灯在幼苗地上部分自民党的豌豆Metsenat略有下降- 8%,和大豆幼苗的SDP Korsak显著增加——47%。在RL照射下，Metsenat品种豌豆和Korsak品种大豆幼苗地上部分生物量的线性生长和积累均有所下降，且这种影响在大豆中更为明显。在RL照射下，LDP豌豆幼苗根系线状生长及其生物量积累略有下降，而大豆SDP幼苗根系线状生长及其生物量积累则受到显著刺激。在RL的影响下，豌豆幼苗地上部分的生长速率没有变化，但根部的生长速率增加了，而根系的生物量积累速率降低了。在RL照射下，大豆幼苗地上部和根系的生长速率均下降，地上部生物量积累速率增加，根系生物量积累速率降低。在RL照射下，豆科萨克(Korsak)品种的SDP与Metsenat品种的LDP在生长过程的反应性质上存在差异。地上部光敏色素系统的激活引起根系增殖活性和生长过程的变化，这表明植物有机体对该因子的作用作出了系统反应。讨论了植物光周期反应通过激活或抑制根分生组织的增殖活性和生长反应来实现光敏色素信号与植物光周期反应的关系。
{"title":"The effect of red light (660 nm) on proliferative activity and growth reactions in seedlings of plants with contrast photoperiodic reaction","authors":"","doi":"10.26565/2075-5457-2020-34-16","DOIUrl":"https://doi.org/10.26565/2075-5457-2020-34-16","url":null,"abstract":"The results of a study of the effect of red light irradiation (660 nm) on the proliferative activity of root meristems and growth reactions of plant seedlings with contrast photoperiodic reactions are presented in this paper. Plants of the family Fabaceae contrasting in the photoperiodic reaction were used as plant material: long-day plants (LDP) of peas (Pisum sativum L.) of the Metsenat variety and short-day plants (SDP) of soybean (Glycine max (L.) Merr.) of the Korsak variety. Phytochromes were activated by irradiating the aerial part of the experimental seedlings with monochromatic red light (RL) of 660 nm using an LED matrix for 30 minutes for 5 days. The proliferative activity of meristem cells was determined by analysis of the mitotic index (MI). The growth reaction was studied by linear growth indicators: the total length of the seedling, the length of the aerial part and roots, and the integral indicator of growth and biosynthetic processes – the accumulation of biomass. According to the results of the experiments, it was shown that the mitotic activity of root meristems under the influence of red light on the aerial part in seedlings of the LDP of pea Metsenat decreased slightly – by 8 %, and in the seedlings of the SDP of soybean Korsak increased significantly – by 47 %. The linear growth and accumulation of biomass in the aerial part under the action of RL irradiation in seedlings of pea of the Metsenat variety and soybean of the Korsak variety decreased, and this effect was more pronounced in soybean than in pea. During irradiation of RL the linear root growth and their biomass accumulation in seedlings of LDP pea decreased slightly, while at the same time, these processes in the roots of soybean SDP seedlings were significantly stimulated. Under the influence of RL in pea seedlings, the growth rate did not change in the length of the aerial part, but in the roots increased, while the rate of biomass accumulation by them decreased. In soybean seedlings during RL irradiation, the growth rate of both the aerial part and the roots decreased, the biomass accumulation rate by the aerial part increased, and by the roots – decreased. LDP of pea Metsenat and SDP of soybean Korsak variety differ in the nature of the reaction of growth processes in response to irradiation of RL. The activation of the phytochrome system in the aerial part causes changes in the proliferative activity and growth processes of the roots, which indicate a systemic response of the plant organism to the action of this factor. The relationship of the photoperiodic reaction of plants with the realization of phytochrome signal in the plant by activating or inhibiting the proliferative activity of root meristems and growth reactions is discussed.","PeriodicalId":34206,"journal":{"name":"Visnik Kharkivs''kogo Natsional''nogo Universitetu Imeni VN Karazina Seriia Biologiia","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73542158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.26565/2075-5457-2020-34-10
Species of the Macrobiotus hufelandi group are among the most well known and commonly found tardigrades. They are reported in almost every study of Tardigrada diversity in terrestrial habitats. In spite of this, zoogeographical data on this group remain ambiguous and insufficient. Since most species of the M. hufelandi group have been described in the last three decades, many older records need to be confirmed or revised. In this study we aimed to investigate, which species may be present in Ukraine, since most Ukrainian records of this group are outdated. We studied samples of mosses and lichens collected from different regions of Ukraine (mainly in the East and South of the country) in 2007–2019. Tardigrades were extracted from samples and mounted on permanent slides in Faure's medium. After primary identification of genera and species groups we focused on 13 samples containing local populations of the M. hufelandi group. Details of animal and egg morphology were studied under high magnifications of phase contrast light microscopy. Species were identified based on morphology of the oral cavity armature, egg shell morphology, animal cuticle granulation, as well as some morphometric characters of claws and bucco-pharyngeal apparatus. This research revealed the presence of at least six different species in Ukraine: M. glebkai Biserov, 1990; M. hufelandi C.A.S. Schultze, 1834; M. macrocalix Bertolani & Rebecchi, 1993; M. polonicus Pilato, Kaczmarek, Michalczyk & Lisi, 2003; M. sottilei Pilato, Kiosya, Lisi & Sabella, 2012; M. vladimiri Bertolani, Biserov, Rebecchi & Cesari, 2011. Three of them: M. macrocalix, M. sottilei, and M. vladimiri are reported in this study from Ukraine for the first time. Adding three more species recorded in earlier studies: M. diversus Biserov, 1990; M. persimilis Binda & Pilato, 1972, and M. sapiens Binda & Pilato, 1984 – gives the total count of at least 9 species of the group in Ukraine. However, according to the recent studies on species complexes the real species diversity is very likely to be higher. Nevertheless, more sampling and obtaining molecular data from different Ukrainian populations of the M. hufelandi group from Ukraine are required.
{"title":"New records of tardigrade species of the Macrobiotus hufelandi group (Tardigrada: Eutardigrada: Macrobiotidae) from Ukraine","authors":"","doi":"10.26565/2075-5457-2020-34-10","DOIUrl":"https://doi.org/10.26565/2075-5457-2020-34-10","url":null,"abstract":"Species of the Macrobiotus hufelandi group are among the most well known and commonly found tardigrades. They are reported in almost every study of Tardigrada diversity in terrestrial habitats. In spite of this, zoogeographical data on this group remain ambiguous and insufficient. Since most species of the M. hufelandi group have been described in the last three decades, many older records need to be confirmed or revised. In this study we aimed to investigate, which species may be present in Ukraine, since most Ukrainian records of this group are outdated. We studied samples of mosses and lichens collected from different regions of Ukraine (mainly in the East and South of the country) in 2007–2019. Tardigrades were extracted from samples and mounted on permanent slides in Faure's medium. After primary identification of genera and species groups we focused on 13 samples containing local populations of the M. hufelandi group. Details of animal and egg morphology were studied under high magnifications of phase contrast light microscopy. Species were identified based on morphology of the oral cavity armature, egg shell morphology, animal cuticle granulation, as well as some morphometric characters of claws and bucco-pharyngeal apparatus. This research revealed the presence of at least six different species in Ukraine: M. glebkai Biserov, 1990; M. hufelandi C.A.S. Schultze, 1834; M. macrocalix Bertolani & Rebecchi, 1993; M. polonicus Pilato, Kaczmarek, Michalczyk & Lisi, 2003; M. sottilei Pilato, Kiosya, Lisi & Sabella, 2012; M. vladimiri Bertolani, Biserov, Rebecchi & Cesari, 2011. Three of them: M. macrocalix, M. sottilei, and M. vladimiri are reported in this study from Ukraine for the first time. Adding three more species recorded in earlier studies: M. diversus Biserov, 1990; M. persimilis Binda & Pilato, 1972, and M. sapiens Binda & Pilato, 1984 – gives the total count of at least 9 species of the group in Ukraine. However, according to the recent studies on species complexes the real species diversity is very likely to be higher. Nevertheless, more sampling and obtaining molecular data from different Ukrainian populations of the M. hufelandi group from Ukraine are required.","PeriodicalId":34206,"journal":{"name":"Visnik Kharkivs''kogo Natsional''nogo Universitetu Imeni VN Karazina Seriia Biologiia","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73691095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.26565/2075-5457-2020-35-9
О. O. Brez, unova, O. Sinna
The counts of breeding Jackdaws were made in Kharkiv City, Ukraine in April – early June of 2016–2017. We estimated the breeding density among different habitat types. For such a purpose the city area was divided into 0.25 km² squares (n = 1354) and we estimated the numbers of pairs within the boundaries of 40 squares (QGIS program was used to choose randomly these squares). The surveys were made in April–May (19 squares) and early June (4 squares) in 2016 and April–May (10 squares) and early June (7 squares) in 2017. The surveys were made within main habitat types such as area of residential blocks of flats, residential area (1–2-storey buildings), industrial area, forest zone, park zone and undeveloped urban areas. The data on the area occupied by every major habitat type (in km²) were calculated by QGIS program. The 90 % of the territory of Kharkiv City was analysed, except water reservoirs and traffic way areas. The data of the surveys were extrapolated across areas of the same habitat types. Also we have searched for Jackdaw colonies within the boundaries of Kharkiv City to take these data into account. According to the collected data the Jackdaw prefers to nest in crevices of old 3–5-level buildings at built-up districts or in round cross-sections of posts at blocks-of-flats areas. Thus the mean density here was 22 pairs/km². The mean density of Jackdaw in industrial areas was 15 pairs/km², in undeveloped urban areas – 1.2 pairs/km², and in residential area (1–2-storey buildings) – 0.7 pairs/km². The total number of breeding Jackdaws in Kharkiv City was estimated at 2325 to 2630 pairs. The mean density of Jackdaws was 7.5 pairs/km². Taking into account the moderate decline in the population of the Jackdaws in some European countries (although in general the population trend remains stable within the continent), and the lack of the surveys of the breeding distribution and numbers of Jackdaws in large cities of the Eastern Ukraine, it’s reasonable to use our data as an optimal starting point for the monitoring of the regional population trend of the species. The data of 2016 year survey were used in European Breeding Bird Atlas 2 (EBBA2) programme (square 37UCR2).
{"title":"The breeding distribution and numbers of the Jackdaw (Corvus monedula) in Kharkiv City, Ukraine","authors":"О. O. Brez, unova, O. Sinna","doi":"10.26565/2075-5457-2020-35-9","DOIUrl":"https://doi.org/10.26565/2075-5457-2020-35-9","url":null,"abstract":"The counts of breeding Jackdaws were made in Kharkiv City, Ukraine in April – early June of 2016–2017. We estimated the breeding density among different habitat types. For such a purpose the city area was divided into 0.25 km² squares (n = 1354) and we estimated the numbers of pairs within the boundaries of 40 squares (QGIS program was used to choose randomly these squares). The surveys were made in April–May (19 squares) and early June (4 squares) in 2016 and April–May (10 squares) and early June (7 squares) in 2017. The surveys were made within main habitat types such as area of residential blocks of flats, residential area (1–2-storey buildings), industrial area, forest zone, park zone and undeveloped urban areas. The data on the area occupied by every major habitat type (in km²) were calculated by QGIS program. The 90 % of the territory of Kharkiv City was analysed, except water reservoirs and traffic way areas. The data of the surveys were extrapolated across areas of the same habitat types. Also we have searched for Jackdaw colonies within the boundaries of Kharkiv City to take these data into account. According to the collected data the Jackdaw prefers to nest in crevices of old 3–5-level buildings at built-up districts or in round cross-sections of posts at blocks-of-flats areas. Thus the mean density here was 22 pairs/km². The mean density of Jackdaw in industrial areas was 15 pairs/km², in undeveloped urban areas – 1.2 pairs/km², and in residential area (1–2-storey buildings) – 0.7 pairs/km². The total number of breeding Jackdaws in Kharkiv City was estimated at 2325 to 2630 pairs. The mean density of Jackdaws was 7.5 pairs/km². Taking into account the moderate decline in the population of the Jackdaws in some European countries (although in general the population trend remains stable within the continent), and the lack of the surveys of the breeding distribution and numbers of Jackdaws in large cities of the Eastern Ukraine, it’s reasonable to use our data as an optimal starting point for the monitoring of the regional population trend of the species. The data of 2016 year survey were used in European Breeding Bird Atlas 2 (EBBA2) programme (square 37UCR2).","PeriodicalId":34206,"journal":{"name":"Visnik Kharkivs''kogo Natsional''nogo Universitetu Imeni VN Karazina Seriia Biologiia","volume":"82 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73903764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.26565/2220-8089-2020-37-18
The Republic of Azerbaijan’s state hood development process state and stages, the features of which are determined by the specifics of history, geographical, geopolitical, national, and cultural factors, are considered. The role of the nation-state as the only possible political institution that can defend national interests both within the country (in the economic, sociocultural, domestic political spheres) and in the international arena is highlighted. The growing role of the modern state in preserving its sovereignty in the era of the formation of a multipolar post-globalization world and the effective use of its own natural and other resources for the benefit of the citizens of their country is emphasized. Particular attention is paid to the relations of Azerbaijan as one of the countries of the South Caucasus with powerful geopolitical actors, with the European Unionin particular. The presence of the unresolved problem of the prolonged Armenian-Azerbaijani conflict, which is a threat to the national sovereignty of Azerbaijan, is brought up. The specifics of Azerbaijan’s relations with the European Union are explained, namely: on the one hand, the importance of Azerbaijan as a transit country and supplier of gas and oil resources of the Caspian basin to the EU, and on the other hand, constant pressure on the political leadership of Azerbaijan to force them to make structural political changes and steadily implement generally accepted in Western Europe, democratic principles and values. The gradual transformation of the policy of the European Union itself is emphasized in the sense of closer proximity to a realistic assessment of its relations with member countries, neighboring countries, and associate members.
{"title":"EUROPEAN ASPECT OF AZERBAIJAN'S FOREIGN POLICY","authors":"","doi":"10.26565/2220-8089-2020-37-18","DOIUrl":"https://doi.org/10.26565/2220-8089-2020-37-18","url":null,"abstract":"The Republic of Azerbaijan’s state hood development process state and stages, the features of which are determined by the specifics of history, geographical, geopolitical, national, and cultural factors, are considered. The role of the nation-state as the only possible political institution that can defend national interests both within the country (in the economic, sociocultural, domestic political spheres) and in the international arena is highlighted. The growing role of the modern state in preserving its sovereignty in the era of the formation of a multipolar post-globalization world and the effective use of its own natural and other resources for the benefit of the citizens of their country is emphasized. Particular attention is paid to the relations of Azerbaijan as one of the countries of the South Caucasus with powerful geopolitical actors, with the European Unionin particular. The presence of the unresolved problem of the prolonged Armenian-Azerbaijani conflict, which is a threat to the national sovereignty of Azerbaijan, is brought up. The specifics of Azerbaijan’s relations with the European Union are explained, namely: on the one hand, the importance of Azerbaijan as a transit country and supplier of gas and oil resources of the Caspian basin to the EU, and on the other hand, constant pressure on the political leadership of Azerbaijan to force them to make structural political changes and steadily implement generally accepted in Western Europe, democratic principles and values. The gradual transformation of the policy of the European Union itself is emphasized in the sense of closer proximity to a realistic assessment of its relations with member countries, neighboring countries, and associate members.","PeriodicalId":34206,"journal":{"name":"Visnik Kharkivs''kogo Natsional''nogo Universitetu Imeni VN Karazina Seriia Biologiia","volume":"80 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76848792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-01DOI: 10.26565/2075-5457-2020-35-5
The model of congenic strains of Drosophila melanogaster was used to investigate the peculiarities of the effect of mutations in yellow (y), ebony (e), and black (b) genes involved in biogenesis of cuticle pigments on imago mating behavior indicators. The aim of this study was to find out if the effect of the given mutations on Drosophila imago mating behavior depends on the general genetic background on which they are realized. To achieve this goal, pairs of congenic strains were constructed using successive saturation crosses followed by selection for the marker phenotype resulted in each of the mutant alleles introduced in homozygous condition into the genotype of either Canton-S or Oregon-R wild-type stock instead of the corresponding wild-type allele present in these stocks initially. Individuals of strains resulted were tested for mating receptivity of females and mating activity of males. Each of the indicators was evaluated as a proportion of sexually mature but virgin individuals of a particular sex copulated successfully within the first hour after placing them in a test chamber with an excess of individuals of the opposite sex. According to the data obtained and the results of their statistical analysis, it was proved that the introduction of a mutation into the genetic background of the wild-type stock is accompanied with a change in the studied characteristics of imago mating behavior. The effect depends on the mutation introduced and on the genotype of the recipient stock. Thus, males of the yC-S strain are characterized by increased mating activity comparatively to males of the wild-type Canton-S stock. These results expand the known effects of yellow mutation. Males of the bC-S and eC-S strains, on the contrary, are less active than the males of the wild-type Canton-S stock. The most pronounced effects on mating receptivity of females were fixed for b (an increase in the indicator when introduced into Oregon genetic background) and e (a decrease when introduced into Canton-S genetic background) mutations. The indicators studied under the conditions of the given experimental scheme change in direct proportion (rS = 0,76; p < 0,05). In other words, if the strain is characterized by high mating activity of males, as a rule, a high mating receptivity of females will be also observed.
{"title":"Effects of body pigmentation mutations on Drosophila melanogaster mating behavior","authors":"","doi":"10.26565/2075-5457-2020-35-5","DOIUrl":"https://doi.org/10.26565/2075-5457-2020-35-5","url":null,"abstract":"The model of congenic strains of Drosophila melanogaster was used to investigate the peculiarities of the effect of mutations in yellow (y), ebony (e), and black (b) genes involved in biogenesis of cuticle pigments on imago mating behavior indicators. The aim of this study was to find out if the effect of the given mutations on Drosophila imago mating behavior depends on the general genetic background on which they are realized. To achieve this goal, pairs of congenic strains were constructed using successive saturation crosses followed by selection for the marker phenotype resulted in each of the mutant alleles introduced in homozygous condition into the genotype of either Canton-S or Oregon-R wild-type stock instead of the corresponding wild-type allele present in these stocks initially. Individuals of strains resulted were tested for mating receptivity of females and mating activity of males. Each of the indicators was evaluated as a proportion of sexually mature but virgin individuals of a particular sex copulated successfully within the first hour after placing them in a test chamber with an excess of individuals of the opposite sex. According to the data obtained and the results of their statistical analysis, it was proved that the introduction of a mutation into the genetic background of the wild-type stock is accompanied with a change in the studied characteristics of imago mating behavior. The effect depends on the mutation introduced and on the genotype of the recipient stock. Thus, males of the yC-S strain are characterized by increased mating activity comparatively to males of the wild-type Canton-S stock. These results expand the known effects of yellow mutation. Males of the bC-S and eC-S strains, on the contrary, are less active than the males of the wild-type Canton-S stock. The most pronounced effects on mating receptivity of females were fixed for b (an increase in the indicator when introduced into Oregon genetic background) and e (a decrease when introduced into Canton-S genetic background) mutations. The indicators studied under the conditions of the given experimental scheme change in direct proportion (rS = 0,76; p < 0,05). In other words, if the strain is characterized by high mating activity of males, as a rule, a high mating receptivity of females will be also observed.","PeriodicalId":34206,"journal":{"name":"Visnik Kharkivs''kogo Natsional''nogo Universitetu Imeni VN Karazina Seriia Biologiia","volume":"64 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84297796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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