Pub Date : 2022-06-29DOI: 10.15407/ukrbotj79.03.184
N. Vedenicheva, M. Shcherbatyuk, I. Kosakivska
Phytohormones play a key role in the regulation of plant acclimation to low temperature. To elucidate the role of cytokinins in rye plant response to chilling, we studied the dynamics of these hormones in shoots and roots under short-term and prolonged cold stress. The 7-day-old plants were exposed to cold stress (2 °C) for 2 h (alarm phase of response) or for 6 h for two days (acclimation phase of response). Endogenous content of cytokinins was analyzed by HPLC-MS method. Low temperature had a differential effect on the content of individual cytokinins and their localization in rye plants. During the short-term stress, a decrease in the content of active cytokinins (trans-zeatin and trans-zeatin riboside) in the roots and an increase in the shoots were shown. Prolonged low-temperature stress declined the amount of cytokinins except trans-zeatin riboside, which was detected in both roots and shoots. Significant rise in trans-zeatin riboside content in roots and shoots in this period evidenced an important role of this cytokinin during cold acclimation of rye plants.
{"title":"Effect of low-temperature stress on the growth of plants of Secale cereale (Poaceae) and endogenous cytokinin content in roots and shoots","authors":"N. Vedenicheva, M. Shcherbatyuk, I. Kosakivska","doi":"10.15407/ukrbotj79.03.184","DOIUrl":"https://doi.org/10.15407/ukrbotj79.03.184","url":null,"abstract":"Phytohormones play a key role in the regulation of plant acclimation to low temperature. To elucidate the role of cytokinins in rye plant response to chilling, we studied the dynamics of these hormones in shoots and roots under short-term and prolonged cold stress. The 7-day-old plants were exposed to cold stress (2 °C) for 2 h (alarm phase of response) or for 6 h for two days (acclimation phase of response). Endogenous content of cytokinins was analyzed by HPLC-MS method. Low temperature had a differential effect on the content of individual cytokinins and their localization in rye plants. During the short-term stress, a decrease in the content of active cytokinins (trans-zeatin and trans-zeatin riboside) in the roots and an increase in the shoots were shown. Prolonged low-temperature stress declined the amount of cytokinins except trans-zeatin riboside, which was detected in both roots and shoots. Significant rise in trans-zeatin riboside content in roots and shoots in this period evidenced an important role of this cytokinin during cold acclimation of rye plants.","PeriodicalId":52835,"journal":{"name":"Ukrainian Botanical Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42407802","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 : 2022-06-29DOI: 10.15407/ukrbotj79.03.154
V. Heluta, M. Zykova, V. Hayova, M. Prydiuk, M. Shevchenko
The Red Data Book of Ukraine is an official national Red List of threatened species of plants, animals and fungi that are protected by law in Ukraine. This state document contains information about the current status of these species, threats and measures for their conservation and reproduction. According to the Law of Ukraine On the Red Book Data of Ukraine, the Cabinet of Ministers of Ukraine provides official publication of the printed version of the Red Data Book of Ukraine at least once a decade. In 2021, based on the results of the studies carried out over the past decade, the list of fungi in the Red Data Book of Ukraine was extended to include twenty more species (Amylocystis lapponica, Battarrea phalloides, Butyriboletus appendiculatus, B. fechtneri, B. fuscoroseus, B. subappendiculatus, Chalciporus rubinus, Hemileccinum depilatum, Hericium erinaceum, Kavinia alboviridis, Montagnea radiosa, Mythicomyces corneipes, Phellinidium ferrugineofuscum, Plectania melastoma, Poronia punctata, Rubroboletus lupinus, R. rhodoxanthus, R. rubrosanguineus, R. satanas, and Suillus plorans), while nine species of fungi were excluded for various reasons (Anthurus archeri, Clathrus ruber, Entoloma nidorosum, Gyromitra slonevskii, Laricifomes officinalis, Morchella steppicola, Mutinus ravenelii, Phallus duplicatus, and Pseudocolus fusiformis). The article provides brief information and original photographs of the added twenty species of fungi of national conservation concern.
{"title":"An update to the species list of fungi in the Red Data Book of Ukraine","authors":"V. Heluta, M. Zykova, V. Hayova, M. Prydiuk, M. Shevchenko","doi":"10.15407/ukrbotj79.03.154","DOIUrl":"https://doi.org/10.15407/ukrbotj79.03.154","url":null,"abstract":"The Red Data Book of Ukraine is an official national Red List of threatened species of plants, animals and fungi that are protected by law in Ukraine. This state document contains information about the current status of these species, threats and measures for their conservation and reproduction. According to the Law of Ukraine On the Red Book Data of Ukraine, the Cabinet of Ministers of Ukraine provides official publication of the printed version of the Red Data Book of Ukraine at least once a decade. In 2021, based on the results of the studies carried out over the past decade, the list of fungi in the Red Data Book of Ukraine was extended to include twenty more species (Amylocystis lapponica, Battarrea phalloides, Butyriboletus appendiculatus, B. fechtneri, B. fuscoroseus, B. subappendiculatus, Chalciporus rubinus, Hemileccinum depilatum, Hericium erinaceum, Kavinia alboviridis, Montagnea radiosa, Mythicomyces corneipes, Phellinidium ferrugineofuscum, Plectania melastoma, Poronia punctata, Rubroboletus lupinus, R. rhodoxanthus, R. rubrosanguineus, R. satanas, and Suillus plorans), while nine species of fungi were excluded for various reasons (Anthurus archeri, Clathrus ruber, Entoloma nidorosum, Gyromitra slonevskii, Laricifomes officinalis, Morchella steppicola, Mutinus ravenelii, Phallus duplicatus, and Pseudocolus fusiformis). The article provides brief information and original photographs of the added twenty species of fungi of national conservation concern.","PeriodicalId":52835,"journal":{"name":"Ukrainian Botanical Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45577402","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}
P. De Lange, P. Pelser, Chia-Sin Liew, A. Marshall
Previous research has demonstrated that Senecio repangae subsp. repangae and subsp. pokohinuensis have independent evolutionary origins. Here, we therefore elevate subsp. pokohinuensis to species rank: Senecio pokohinuensis. Updated morphological descriptions for both species are also provided.
{"title":"Senecio pokohinuensis (Asteraceae), a new combination for an endemic species of Mokohinau Islands, Hauraki Gulf (Tikapa Moana o Hauraki), northern Te Ika a Maui / North Island, Aotearoa / New Zealand","authors":"P. De Lange, P. Pelser, Chia-Sin Liew, A. Marshall","doi":"10.15407/ukrbotj79.125","DOIUrl":"https://doi.org/10.15407/ukrbotj79.125","url":null,"abstract":"Previous research has demonstrated that Senecio repangae subsp. repangae and subsp. pokohinuensis have independent evolutionary origins. Here, we therefore elevate subsp. pokohinuensis to species rank: Senecio pokohinuensis. Updated morphological descriptions for both species are also provided.","PeriodicalId":52835,"journal":{"name":"Ukrainian Botanical Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44318825","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 : 2022-03-12DOI: 10.15407/ukrbotj79.01.056
D. Shyriaieva
The diversity of mesic and wet grasslands for the north part of the steppe zone in the Southern Bug River basin is characterized by the example of Buzkyi Gard National Nature Park and adjacent territories. I classified 39 vegetation relevés with quantitative classification methods (JUICE, TWINSPAN modified algorithm) and obtained seven clusters, which represent three associations, three communities and one derivate community within six alliances (Agrostion vinealis, Althaeion officinalis, Arrhenatherion elatioris, Convolvulo arvensis-Agropyrion repentis, Potentillion anserinae, Veronico longifoliae-Lysimachion vulgaris). Using Canonical Correspondence Analysis (CCA), Detrended Correspondence Analysis (DCA) and Didukh’s ecological scales, I determined the main environmental factors, which explain differentiation of the resulted vegetation units: variability of damping, salt regime of a soil, soil moisture, soil aeration, carbonate content in a soil, light. Characterized vegetation corresponds to six habitat types of the EUNIS classification (R21, R22, R35, R36, R55, V38). I also reviewed the major factors of negative impact on the meadow vegetation of the territory, in particular the changes of traditional land use in the last decades and their consequences. The main measures of management for studied communities should be mowing, moderate grazing, and removal of tree and shrub species if necessary.
{"title":"Ecological and coenotic differentiation of meadow vegetation of Buzkyi Gard National Nature Park","authors":"D. Shyriaieva","doi":"10.15407/ukrbotj79.01.056","DOIUrl":"https://doi.org/10.15407/ukrbotj79.01.056","url":null,"abstract":"The diversity of mesic and wet grasslands for the north part of the steppe zone in the Southern Bug River basin is characterized by the example of Buzkyi Gard National Nature Park and adjacent territories. I classified 39 vegetation relevés with quantitative classification methods (JUICE, TWINSPAN modified algorithm) and obtained seven clusters, which represent three associations, three communities and one derivate community within six alliances (Agrostion vinealis, Althaeion officinalis, Arrhenatherion elatioris, Convolvulo arvensis-Agropyrion repentis, Potentillion anserinae, Veronico longifoliae-Lysimachion vulgaris). Using Canonical Correspondence Analysis (CCA), Detrended Correspondence Analysis (DCA) and Didukh’s ecological scales, I determined the main environmental factors, which explain differentiation of the resulted vegetation units: variability of damping, salt regime of a soil, soil moisture, soil aeration, carbonate content in a soil, light. Characterized vegetation corresponds to six habitat types of the EUNIS classification (R21, R22, R35, R36, R55, V38). I also reviewed the major factors of negative impact on the meadow vegetation of the territory, in particular the changes of traditional land use in the last decades and their consequences. The main measures of management for studied communities should be mowing, moderate grazing, and removal of tree and shrub species if necessary.","PeriodicalId":52835,"journal":{"name":"Ukrainian Botanical Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43030923","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 : 2022-03-12DOI: 10.15407/ukrbotj79.01.027
S. Boiko
Simple sequence repeats of DNA (SSRs) are the most popular source of genetic markers used in population genetics, phylogenetics, and genetic mapping. A large number of nucleotide repeats enriched in G and C were identified. 336 mononucleotide motifs with more than ten repeats were recorded. 2020 nucleotide repeats were identified, of which 97.4% are di- (68.2%) and trinucleotides (29.2%). The total number of unique SSR loci, to which primers pairs were developed, was 1920. PCR primer sequences for unique SSR loci of the S. commune genome are presented. Of the twenty-two SSR markers synthesized for the S. commune genome, amplicons formed 64% on freshly isolated DNA samples.
{"title":"Design of microsatellite markers for Schizophyllum commune (Agaricales, Basidiomycota) based on analysis of its genome","authors":"S. Boiko","doi":"10.15407/ukrbotj79.01.027","DOIUrl":"https://doi.org/10.15407/ukrbotj79.01.027","url":null,"abstract":"Simple sequence repeats of DNA (SSRs) are the most popular source of genetic markers used in population genetics, phylogenetics, and genetic mapping. A large number of nucleotide repeats enriched in G and C were identified. 336 mononucleotide motifs with more than ten repeats were recorded. 2020 nucleotide repeats were identified, of which 97.4% are di- (68.2%) and trinucleotides (29.2%). The total number of unique SSR loci, to which primers pairs were developed, was 1920. PCR primer sequences for unique SSR loci of the S. commune genome are presented. Of the twenty-two SSR markers synthesized for the S. commune genome, amplicons formed 64% on freshly isolated DNA samples.","PeriodicalId":52835,"journal":{"name":"Ukrainian Botanical Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47203113","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 : 2022-03-12DOI: 10.15407/ukrbotj79.01.051
I. Mustafaev, Z.Sh. Islomiddinov
The first record of Geopora arenicola for Uzbekistan is reported from Nuratau Nature Reserve. The genus Geopora is also recorded for the first time in Uzbekistan. Ascocarps of the fungus at first are usually spherical, completely immersed in soil, later they emerge at the ground surface and open at the top. Mature apothecia have a central opening with torn edges and whitish to grayish hymenium surface. A description, distribution data, images of apothecia and micromorphological characters of the fungus are provided.
{"title":"The first record of the genus Geopora (Pezizales) for Uzbekistan","authors":"I. Mustafaev, Z.Sh. Islomiddinov","doi":"10.15407/ukrbotj79.01.051","DOIUrl":"https://doi.org/10.15407/ukrbotj79.01.051","url":null,"abstract":"The first record of Geopora arenicola for Uzbekistan is reported from Nuratau Nature Reserve. The genus Geopora is also recorded for the first time in Uzbekistan. Ascocarps of the fungus at first are usually spherical, completely immersed in soil, later they emerge at the ground surface and open at the top. Mature apothecia have a central opening with torn edges and whitish to grayish hymenium surface. A description, distribution data, images of apothecia and micromorphological characters of the fungus are provided.","PeriodicalId":52835,"journal":{"name":"Ukrainian Botanical Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41465972","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 : 2022-03-12DOI: 10.15407/ukrbotj79.01.035
Yu.I. Lytvynenko, V. Heluta, N.O. Starynska
A checklist of microfungi recorded in Mykhailivska Tsilyna Nature Reserve (Sumy Region, Ukraine) is provided. The checklist includes 170 species belonging to 73 genera, 41 families, 18 orders, and 9 classes of Fungi (Chytridiomycota, Ascomycota, and Basidiomycota) and fungi-like organisms of Straminipila (Oomycota). Pucciniales (46 species), Erysiphales (30), Pleosporales (25), and Capnodiales (25) are the dominant orders of microfungi reported from the reserve.
{"title":"Microfungi of Mykhailivska Tsilyna Nature Reserve","authors":"Yu.I. Lytvynenko, V. Heluta, N.O. Starynska","doi":"10.15407/ukrbotj79.01.035","DOIUrl":"https://doi.org/10.15407/ukrbotj79.01.035","url":null,"abstract":"A checklist of microfungi recorded in Mykhailivska Tsilyna Nature Reserve (Sumy Region, Ukraine) is provided. The checklist includes 170 species belonging to 73 genera, 41 families, 18 orders, and 9 classes of Fungi (Chytridiomycota, Ascomycota, and Basidiomycota) and fungi-like organisms of Straminipila (Oomycota). Pucciniales (46 species), Erysiphales (30), Pleosporales (25), and Capnodiales (25) are the dominant orders of microfungi reported from the reserve.","PeriodicalId":52835,"journal":{"name":"Ukrainian Botanical Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45728964","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 : 2022-03-12DOI: 10.15407/ukrbotj79.01.003
S.Y. Kondratyuk, S. L. Mosyakin
A new generic name, Wilketalia S.Y.Kondr. (nom. nov.; Teloschistaceae, lichenized Ascomycota), is published to replace the name Andina Wilk, Pabijan & Lücking (nom. illeg.), which is an illegitimate later homonym of Andina J.A.Jiménez & M.J.Cano (Pottiaceae, Bryophyta) and Andinia (Luer) Luer (Orchidaceae). A new species-rank combination Wilketalia citrinoides (Wilk & Lücking) S.Y.Kondr. (Andina citrinoides ilk & Lücking) is also validated. Brief nomenclatural comments are provided.
{"title":"Wilketalia S.Y.Kondr., a new name for Andina Wilk, Pabijan & Lücking, nom. illeg. (Teloschistaceae, lichenized Ascomycota)","authors":"S.Y. Kondratyuk, S. L. Mosyakin","doi":"10.15407/ukrbotj79.01.003","DOIUrl":"https://doi.org/10.15407/ukrbotj79.01.003","url":null,"abstract":"A new generic name, Wilketalia S.Y.Kondr. (nom. nov.; Teloschistaceae, lichenized Ascomycota), is published to replace the name Andina Wilk, Pabijan & Lücking (nom. illeg.), which is an illegitimate later homonym of Andina J.A.Jiménez & M.J.Cano (Pottiaceae, Bryophyta) and Andinia (Luer) Luer (Orchidaceae). A new species-rank combination Wilketalia citrinoides (Wilk & Lücking) S.Y.Kondr. (Andina citrinoides ilk & Lücking) is also validated. Brief nomenclatural comments are provided.","PeriodicalId":52835,"journal":{"name":"Ukrainian Botanical Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46548601","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 : 2022-03-12DOI: 10.15407/ukrbotj79.01.006
O. Orlov, O. Shynder, E. Vorobjov, O. Gryb
Results of the conducted botanical surveys in the Forest-Steppe part of Zhytomyr Region are provided. Nine alien taxa (mainly xenophytes) new for the flora of the Right Bank Forest-Steppe have been identified: Allium altissimum, Amaranthus deflexus, Aphanes arvensis, Artemisia umbrosa, Crataegus sanguinea, Epilobium pseudorubescens, Erigeron strigosus, Polygonum calcatum, and Silene coronaria. Localities of these species are described and botanical-geographical comments are provided for most of taxa. There are also 64 taxa newly reported for the Forest-Steppe part of Zhytomyr Region, of which 31 are native plants, 32 – alien plants, and 1 species of unidentified origin. Twelve taxa are rare and protected at different levels. Invasive plants in need of monitoring are identified among newly reported species. According to the new data, flora of the Forest-Steppe part of Zhytomyr Region includes more than 1320 taxa of vascular plants. An important result was the discovery at the border of Zhytomyr Polissya and the Right Bank Forest-Steppe of localities of five expanding species of the genus Rubus with predominantly Central European ranges: R. bertramii, R. gracilis, R. hirtus, R. montanus, and R. plicatus. Expansion of these species of blackberries in the eastern direction within the territory of Northern Ukraine is associated with natural migration and is probably caused by the gradual climate warming.
{"title":"New floristic finds in the Forest-Steppe part of Zhytomyr Region","authors":"O. Orlov, O. Shynder, E. Vorobjov, O. Gryb","doi":"10.15407/ukrbotj79.01.006","DOIUrl":"https://doi.org/10.15407/ukrbotj79.01.006","url":null,"abstract":"Results of the conducted botanical surveys in the Forest-Steppe part of Zhytomyr Region are provided. Nine alien taxa (mainly xenophytes) new for the flora of the Right Bank Forest-Steppe have been identified: Allium altissimum, Amaranthus deflexus, Aphanes arvensis, Artemisia umbrosa, Crataegus sanguinea, Epilobium pseudorubescens, Erigeron strigosus, Polygonum calcatum, and Silene coronaria. Localities of these species are described and botanical-geographical comments are provided for most of taxa. There are also 64 taxa newly reported for the Forest-Steppe part of Zhytomyr Region, of which 31 are native plants, 32 – alien plants, and 1 species of unidentified origin. Twelve taxa are rare and protected at different levels. Invasive plants in need of monitoring are identified among newly reported species. According to the new data, flora of the Forest-Steppe part of Zhytomyr Region includes more than 1320 taxa of vascular plants. An important result was the discovery at the border of Zhytomyr Polissya and the Right Bank Forest-Steppe of localities of five expanding species of the genus Rubus with predominantly Central European ranges: R. bertramii, R. gracilis, R. hirtus, R. montanus, and R. plicatus. Expansion of these species of blackberries in the eastern direction within the territory of Northern Ukraine is associated with natural migration and is probably caused by the gradual climate warming.","PeriodicalId":52835,"journal":{"name":"Ukrainian Botanical Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45180924","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 : 2021-12-31DOI: 10.15407/ukrbotj78.06.426
G. Shevchenko
In order to identify the mechanism of functioning of the tubulin cytoskeleton, we have investigated the impact of clinorotation on cortical microtubules organization in the process of cell differentiation in growth zones of plant roots of Zea mays and Beta vulgaris. The similar organization of cortical and endoplasmic microtubules’ network in both species is noted. Clinorotation did not significantly change the organization of microtubules in meristem cells and the central elongation root zone. However, in the distal elongation zone of roots, both Z. mays and B. vulgaris expressed deviations of individual microtubules from the ordered transverse organization (at an angle greater than 45º). This deviation of the microtubules is likely caused by clinorotation and results in discoordination of root growth under these conditions. In addition, it has been found that the scope of destruction of the MT network by taxol in the root cells of both species is not dependent on clinorotation.
{"title":"Comparative organization of tubulin microtubules in root cells of Zea mays (Poaceae) and Beta vulgaris (Chenopodiaceae s. str. / Amaranthaceae s. l.) under the influence of clinorotation","authors":"G. Shevchenko","doi":"10.15407/ukrbotj78.06.426","DOIUrl":"https://doi.org/10.15407/ukrbotj78.06.426","url":null,"abstract":"In order to identify the mechanism of functioning of the tubulin cytoskeleton, we have investigated the impact of clinorotation on cortical microtubules organization in the process of cell differentiation in growth zones of plant roots of Zea mays and Beta vulgaris. The similar organization of cortical and endoplasmic microtubules’ network in both species is noted. Clinorotation did not significantly change the organization of microtubules in meristem cells and the central elongation root zone. However, in the distal elongation zone of roots, both Z. mays and B. vulgaris expressed deviations of individual microtubules from the ordered transverse organization (at an angle greater than 45º). This deviation of the microtubules is likely caused by clinorotation and results in discoordination of root growth under these conditions. In addition, it has been found that the scope of destruction of the MT network by taxol in the root cells of both species is not dependent on clinorotation.","PeriodicalId":52835,"journal":{"name":"Ukrainian Botanical Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43182425","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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