Pub Date : 2023-01-01DOI: 10.15666/aeer/2104_35213531
J. Tang, R. Zou, X. Wei, D.P. Li, K. Ishimaru
. Understanding the genetic diversity and structure of the rare and endangered relict plant Cycas shiwandashanica is the basis and prerequisite for formulating effective conservation and management strategies. In this study, the genetic diversity and genetic structure of 103 individuals from five populations of C. shiwandashanica were analyzed based on 6 pairs of SSR primers with good polymorphism and stable amplification. The results showed that at the population level, the Shannon information diversity index (I) was 0.709. The mean value of Ho was 0.453. The results indicated that C. shiwandashanica had high genetic diversity. There were significant differences among all populations. The total mean value of Wright fixed index F of the polymorphic loci of each population was -0.147, indicating that there was an excess of heterozygotes in each population. The analysis of molecular variance showed that 21% of the genetic variation existed in the population level and 79% in the individual level. The individual variation was the main source of the total variation of C. shiwandashanica . The results indicated that C. shiwandashanica had abundant genetic variation and high evolutionary potential. The maximum genetic distance between the five populations was 0.268423 (SY1/ZWS1) and the minimum was 0.049418 (SY1/MZT1). MZT1 and SY1 get together, then PFA1, and finally WWL1; This is consistent with the distribution location and distance of the wild population of C. shiwandashanica . Considering the current situation of the wild population of this species, it is suggested to establish a protection plot, carry out in situ protection, and strengthen the ex-situ protection measures such as introduction and artificial breeding. This study can provide theoretical support for the conservation of plant resources of C. shiwandashanica and has important theoretical and practical significance.
{"title":"GENETIC DIVERSITY AND GENETIC STRUCTURE OF THE RARE AND ENDANGERED RELICT PLANT CYCAS SHIWANDASHANICA","authors":"J. Tang, R. Zou, X. Wei, D.P. Li, K. Ishimaru","doi":"10.15666/aeer/2104_35213531","DOIUrl":"https://doi.org/10.15666/aeer/2104_35213531","url":null,"abstract":". Understanding the genetic diversity and structure of the rare and endangered relict plant Cycas shiwandashanica is the basis and prerequisite for formulating effective conservation and management strategies. In this study, the genetic diversity and genetic structure of 103 individuals from five populations of C. shiwandashanica were analyzed based on 6 pairs of SSR primers with good polymorphism and stable amplification. The results showed that at the population level, the Shannon information diversity index (I) was 0.709. The mean value of Ho was 0.453. The results indicated that C. shiwandashanica had high genetic diversity. There were significant differences among all populations. The total mean value of Wright fixed index F of the polymorphic loci of each population was -0.147, indicating that there was an excess of heterozygotes in each population. The analysis of molecular variance showed that 21% of the genetic variation existed in the population level and 79% in the individual level. The individual variation was the main source of the total variation of C. shiwandashanica . The results indicated that C. shiwandashanica had abundant genetic variation and high evolutionary potential. The maximum genetic distance between the five populations was 0.268423 (SY1/ZWS1) and the minimum was 0.049418 (SY1/MZT1). MZT1 and SY1 get together, then PFA1, and finally WWL1; This is consistent with the distribution location and distance of the wild population of C. shiwandashanica . Considering the current situation of the wild population of this species, it is suggested to establish a protection plot, carry out in situ protection, and strengthen the ex-situ protection measures such as introduction and artificial breeding. This study can provide theoretical support for the conservation of plant resources of C. shiwandashanica and has important theoretical and practical significance.","PeriodicalId":7975,"journal":{"name":"Applied Ecology and Environmental Research","volume":"21 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67132779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.15666/aeer/2105_40354067
D. YOUCEF ACHIRA, M. MOHAMED-BENKADA, M. NAAS, S.M.E. ABI-AYAD
. A first exploration of aquatic microfungal diversity was conducted in Ain Skhouna wetland, a part of Echott Ech Chergui (Algeria), the second largest chott in North Africa. Fungal strains isolation was carried out from water and sediment samples during 2019.Physico-chemical parameters (pH, temperature, and salinity)were measured in situ as well. Firstfungal strains identification wascarried out by cultural and structural features. A total of 14 monoclonal fungi strains belonging to 7 genera were distinguished where the majority of which belong to the phylum Ascomycota. Among these, the genus Halobyssothecium that was recorded for the first time in Algeria . Occurrence percentage frequency of different taxa showedhigher density of microfungal colonies in sediment compared to water. Through molecular barcoding successfully completed for 11 strains by Internal Transcribed Spacer (ITS) region sequencing, 5 strains were assigned to the species level and 6 to the Section or Complex within the correspondent genus. Authenticated strains based on ITS barcode were then screened for extracellular laccases production for mycoremediation assay, where 8 of them were laccases positive with strong activity exhibited by Aspergillus sp. AS02 and Penicillium sp. AS13 strains. All positive laccases strains were further investigated for their synthetic dyes decolorization ability using « Plate Volume Method » (PVM) to evaluate Congo Red, Brilliant Blue, and Malachite Green dyes decolorization activity at three concentrations, highlighting dyes biodegradation mechanisms used by each strain. Dyes decolorization seems more related to fungal laccases activity than biosorption or accumulation mechanisms. Aspergillus sp. AS02 and Penicillium sp. AS13 strains seem to be good dyes decolorizing candidates by biodegradation. Furthermore, Fusarium acuminatum AS07 showed significant biosorption activity, while Penicillium spp . generally expressed a good dyes accumulation potential. Therefore, identified and studied fungal strains could be used as promising tools for bioremediation of wastewater dyes and industrial effluents enclosing synthetic dyes.
{"title":"FIRST DIVERSITY ASSESSMENT AND SYNTHETIC DYES REMEDIATION POTENTIAL OF AQUATIC MICROMYCETES FROM AIN SKHOUNA WETLAND, WESTERN STEPPE OF ALGERIA","authors":"D. YOUCEF ACHIRA, M. MOHAMED-BENKADA, M. NAAS, S.M.E. ABI-AYAD","doi":"10.15666/aeer/2105_40354067","DOIUrl":"https://doi.org/10.15666/aeer/2105_40354067","url":null,"abstract":". A first exploration of aquatic microfungal diversity was conducted in Ain Skhouna wetland, a part of Echott Ech Chergui (Algeria), the second largest chott in North Africa. Fungal strains isolation was carried out from water and sediment samples during 2019.Physico-chemical parameters (pH, temperature, and salinity)were measured in situ as well. Firstfungal strains identification wascarried out by cultural and structural features. A total of 14 monoclonal fungi strains belonging to 7 genera were distinguished where the majority of which belong to the phylum Ascomycota. Among these, the genus Halobyssothecium that was recorded for the first time in Algeria . Occurrence percentage frequency of different taxa showedhigher density of microfungal colonies in sediment compared to water. Through molecular barcoding successfully completed for 11 strains by Internal Transcribed Spacer (ITS) region sequencing, 5 strains were assigned to the species level and 6 to the Section or Complex within the correspondent genus. Authenticated strains based on ITS barcode were then screened for extracellular laccases production for mycoremediation assay, where 8 of them were laccases positive with strong activity exhibited by Aspergillus sp. AS02 and Penicillium sp. AS13 strains. All positive laccases strains were further investigated for their synthetic dyes decolorization ability using « Plate Volume Method » (PVM) to evaluate Congo Red, Brilliant Blue, and Malachite Green dyes decolorization activity at three concentrations, highlighting dyes biodegradation mechanisms used by each strain. Dyes decolorization seems more related to fungal laccases activity than biosorption or accumulation mechanisms. Aspergillus sp. AS02 and Penicillium sp. AS13 strains seem to be good dyes decolorizing candidates by biodegradation. Furthermore, Fusarium acuminatum AS07 showed significant biosorption activity, while Penicillium spp . generally expressed a good dyes accumulation potential. Therefore, identified and studied fungal strains could be used as promising tools for bioremediation of wastewater dyes and industrial effluents enclosing synthetic dyes.","PeriodicalId":7975,"journal":{"name":"Applied Ecology and Environmental Research","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136307778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
. Sorghum peduncle length is one of the key agronomic traits in sorghum production and has a critical impact on sorghum mechanization for harvesting. In this study, an F2 segregating population was constructed with significantly different long-peduncle KY133B and short-peduncle KY123B as parents, and the sorghum peduncle length gene was preliminarily located using BSA-seq technology. The association analysis was performed by ED algorithm and SNP-index (or InDel-index) algorithm, and finally the sorghum peduncle length association region was targeted on chromosome 7 and 10. In this study, the BSA-seq technique was used to rapidly and efficiently locate key genetic segments of sorghum peduncle length, which laid the foundation for subsequent functional validation and molecular studies of peduncle length genes.
{"title":"BSA-SEQ-BASED METHOD FOR LOCATING KEY GENETIC SEGMENTS OF PEDUNCLE LENGTH IN BREWING DWARF SORGHUM [SORGHUM BICOLOR (L.) MOENCH]","authors":"G.D. YANG, J.H. LI, Z.Y. HU, Z.Y. HAO, B.S. SUN, C.S. LIU, Q. WANG, X.X. MENG, W. GUO","doi":"10.15666/aeer/2105_43134321","DOIUrl":"https://doi.org/10.15666/aeer/2105_43134321","url":null,"abstract":". Sorghum peduncle length is one of the key agronomic traits in sorghum production and has a critical impact on sorghum mechanization for harvesting. In this study, an F2 segregating population was constructed with significantly different long-peduncle KY133B and short-peduncle KY123B as parents, and the sorghum peduncle length gene was preliminarily located using BSA-seq technology. The association analysis was performed by ED algorithm and SNP-index (or InDel-index) algorithm, and finally the sorghum peduncle length association region was targeted on chromosome 7 and 10. In this study, the BSA-seq technique was used to rapidly and efficiently locate key genetic segments of sorghum peduncle length, which laid the foundation for subsequent functional validation and molecular studies of peduncle length genes.","PeriodicalId":7975,"journal":{"name":"Applied Ecology and Environmental Research","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136368156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.15666/aeer/2105_46154632
K. VELUSWAMY, V.M. CHOWDARY, B. PALANISAMY, V. DURAISAMY, T. THOMAS, B.P. BHASKAR
. The impact of land use and land cover changes (LULCC) is one of the major contributors to increasing greenhouse gas emissions to the atmosphere. At the terrestrial surface, the impact of LULCC is realized in altered hydrology. Conversion of cultivable lands into fallow lands severely affects crop production in agriculturally dominant basins such as the Vaigai River Basin (VRB) in Tamil Nadu, India. Considered as a granary of South Tamil Nadu, any LULCC in VRB results in uncertainty in food production. Therefore, in this study, Landsat images were used to evaluate changes in land use and MODIS NDVI images to estimate changes in browning and greening in VRB during 2001-2020. We also analyzed the rainfall and river discharge in the basin to understand the variations from 2001 to 2019 concerning LULCC. The results showed an increase of seventy-seven percent in fallow lands between 2010 and 2020 and a forty-one to fifty-nine percent increase in urban settlements between 2001 and 2020 in the basin. The impacts of LULCC were realized in monsoon rainfall with no change in river discharge in the lower Vaigai Basin. The study results will aid regulated land use planning and encourage further research on feedback between terrestrial and atmospheric water fluxes for ensuring food security.
{"title":"AN EXPLORATIVE ANALYSIS OF LAND USE LAND COVER CHANGES AND HYDROMETEOROLOGY OF THE VAIGAI RIVER BASIN, INDIA","authors":"K. VELUSWAMY, V.M. CHOWDARY, B. PALANISAMY, V. DURAISAMY, T. THOMAS, B.P. BHASKAR","doi":"10.15666/aeer/2105_46154632","DOIUrl":"https://doi.org/10.15666/aeer/2105_46154632","url":null,"abstract":". The impact of land use and land cover changes (LULCC) is one of the major contributors to increasing greenhouse gas emissions to the atmosphere. At the terrestrial surface, the impact of LULCC is realized in altered hydrology. Conversion of cultivable lands into fallow lands severely affects crop production in agriculturally dominant basins such as the Vaigai River Basin (VRB) in Tamil Nadu, India. Considered as a granary of South Tamil Nadu, any LULCC in VRB results in uncertainty in food production. Therefore, in this study, Landsat images were used to evaluate changes in land use and MODIS NDVI images to estimate changes in browning and greening in VRB during 2001-2020. We also analyzed the rainfall and river discharge in the basin to understand the variations from 2001 to 2019 concerning LULCC. The results showed an increase of seventy-seven percent in fallow lands between 2010 and 2020 and a forty-one to fifty-nine percent increase in urban settlements between 2001 and 2020 in the basin. The impacts of LULCC were realized in monsoon rainfall with no change in river discharge in the lower Vaigai Basin. The study results will aid regulated land use planning and encourage further research on feedback between terrestrial and atmospheric water fluxes for ensuring food security.","PeriodicalId":7975,"journal":{"name":"Applied Ecology and Environmental Research","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136371737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.15666/aeer/2101_467480
Y. Zhao, X. Sun, M. Jiang, H.X. Yu, F. Chai
{"title":"SEASONAL DYNAMICS OF ZOOPLANKTON FUNCTIONAL GROUPS IN RELATION TO ENVIRONMENTAL FACTORS IN GENHEYUAN WETLAND OF NORTHEAST CHINA","authors":"Y. Zhao, X. Sun, M. Jiang, H.X. Yu, F. Chai","doi":"10.15666/aeer/2101_467480","DOIUrl":"https://doi.org/10.15666/aeer/2101_467480","url":null,"abstract":"","PeriodicalId":7975,"journal":{"name":"Applied Ecology and Environmental Research","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67120852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.15666/aeer/2101_623635
C. Hu, C.H. Xu, Guangzhao Hu, Z. Zhang, F. Li, Y. Xie
{"title":"EFFECT OF WATER LEVEL AND SUBMERGENCE TIME ON LEAF GROWTH, STOICHIOMETRY AND HOMEOSTASIS OF CAREX BREVICUSPIS","authors":"C. Hu, C.H. Xu, Guangzhao Hu, Z. Zhang, F. Li, Y. Xie","doi":"10.15666/aeer/2101_623635","DOIUrl":"https://doi.org/10.15666/aeer/2101_623635","url":null,"abstract":"","PeriodicalId":7975,"journal":{"name":"Applied Ecology and Environmental Research","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67125480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.15666/aeer/2102_10431059
Y. Ünal, H. Uysal, A. Koca, M. Zenbilci, M. Ersin
. According to recent genetic studies, there are eight subspecies of leopards (Panthera pardus) all over the world. Among these subspecies, the Anatolian leopard (Panthera pardus tulliana) is distributed in the southern and western regions of Turkey . It is a terrestrial mammal subspecies of Anatolia that is important historically, culturally and biologically. To date, there have been no studies about the Anatolian leopard, which is at the top of the food chain and has the characteristics of an umbrella species, key species and flag species in conservation studies. It is known that until 1975, the Anatolian leopard had dispersed along the forests of Central Anatolia, Mediterranean and Aegean regions. Since then, no living records have been taken, with the exception of unconfirmed information from scientists, local people and hunters. With this study, for the first time in history, one living individual(s) of the Anatolian leopard ( P. p. tulliana ) was photographed and video recorded via camera trap method, in the Western Taurus Mountains of the Mediterranean region of Turkey.
{"title":"NEW RECORDS OF THE LIVING ANATOLIAN LEOPARD (PANTHERA PARDUS TULLIANA L., 1758) IN THE MEDITERRANEAN REGION OF TURKEY","authors":"Y. Ünal, H. Uysal, A. Koca, M. Zenbilci, M. Ersin","doi":"10.15666/aeer/2102_10431059","DOIUrl":"https://doi.org/10.15666/aeer/2102_10431059","url":null,"abstract":". According to recent genetic studies, there are eight subspecies of leopards (Panthera pardus) all over the world. Among these subspecies, the Anatolian leopard (Panthera pardus tulliana) is distributed in the southern and western regions of Turkey . It is a terrestrial mammal subspecies of Anatolia that is important historically, culturally and biologically. To date, there have been no studies about the Anatolian leopard, which is at the top of the food chain and has the characteristics of an umbrella species, key species and flag species in conservation studies. It is known that until 1975, the Anatolian leopard had dispersed along the forests of Central Anatolia, Mediterranean and Aegean regions. Since then, no living records have been taken, with the exception of unconfirmed information from scientists, local people and hunters. With this study, for the first time in history, one living individual(s) of the Anatolian leopard ( P. p. tulliana ) was photographed and video recorded via camera trap method, in the Western Taurus Mountains of the Mediterranean region of Turkey.","PeriodicalId":7975,"journal":{"name":"Applied Ecology and Environmental Research","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67126631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.15666/aeer/2102_15331547
N. Turfan
. The present study was carried out in order to reveal the effects of exogen melatonin (50MT: 50 µM - 100 MT: 100 µM) treatment on the growth rate characteristic and bioactive compound content variations of three spinach cultivars (Acosta-ACO; Anlani-ANL, and Matador-MTR, respectively) grown under cold conditions. While MTR was the richest variety in terms of chlorophyll a, chlorophyll b, total chlorophyll, and carotenoid content, ANL was the richest variety in terms of Chl a to Chl b ratio, and xanthophyll content. Ascorbic acid and protein concentration were stimulated by MT in all three variants, but ANL had the highest value. While the proline content of cultivars decreased with only 50 MT in ACO when compared to the control, GB content decreased in MT doses. RWC increased with MT in ANL, whereas it caused to a decrease in RWC of 100 MT in ACO and 50 MT in MTR. MDA concentration was at a lower level and decreased only in ACO with 50 MT when compared to the control, while the H 2 O 2 concentration was higher at MT doses in all three species. MT treatment stimulated SOD activity in ACO and ANL and increased POD activity in all three variants. Considering the growth characteristics such as root/stem length, leaf characteristics, and biomass, exogenous MT doses had positive effects on all three cultivars. These findings suggest that foliar MT treatment can attenuate cold damage by enhancing the enzymatic and non-enzymatic antioxidant capacity of spinach seedlings, as well as the growth rate.
{"title":"THE EFFECTS OF EXOGENOUS MELATONIN APPLICATION ON GROWTH RATE PARAMETERS AND BIOACTIVE COMPOUNDS OF SOME SPINACH CULTIVARS (SPINACIA OLERACEA L.) GROWN UNDER WINTER CONDITIONS","authors":"N. Turfan","doi":"10.15666/aeer/2102_15331547","DOIUrl":"https://doi.org/10.15666/aeer/2102_15331547","url":null,"abstract":". The present study was carried out in order to reveal the effects of exogen melatonin (50MT: 50 µM - 100 MT: 100 µM) treatment on the growth rate characteristic and bioactive compound content variations of three spinach cultivars (Acosta-ACO; Anlani-ANL, and Matador-MTR, respectively) grown under cold conditions. While MTR was the richest variety in terms of chlorophyll a, chlorophyll b, total chlorophyll, and carotenoid content, ANL was the richest variety in terms of Chl a to Chl b ratio, and xanthophyll content. Ascorbic acid and protein concentration were stimulated by MT in all three variants, but ANL had the highest value. While the proline content of cultivars decreased with only 50 MT in ACO when compared to the control, GB content decreased in MT doses. RWC increased with MT in ANL, whereas it caused to a decrease in RWC of 100 MT in ACO and 50 MT in MTR. MDA concentration was at a lower level and decreased only in ACO with 50 MT when compared to the control, while the H 2 O 2 concentration was higher at MT doses in all three species. MT treatment stimulated SOD activity in ACO and ANL and increased POD activity in all three variants. Considering the growth characteristics such as root/stem length, leaf characteristics, and biomass, exogenous MT doses had positive effects on all three cultivars. These findings suggest that foliar MT treatment can attenuate cold damage by enhancing the enzymatic and non-enzymatic antioxidant capacity of spinach seedlings, as well as the growth rate.","PeriodicalId":7975,"journal":{"name":"Applied Ecology and Environmental Research","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67126948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.15666/aeer/2102_16291654
L. Belhabib, F. Belhoucine, A. Tabeche, A. Alioua
. In the present study we investigated the concentration of organochlorine pesticides (OCPs) in the gills and muscles as well as the levels of Thiobarbituric acid-reactive substances (TBARS), Catalase, GlutathioneS-Transferase (GST) and Acetylcholinesterase (AChE) activity in the liver and muscles of the bogue Boops boops (Linneaus,1758) fish that were caught in the bay of Oran (Algeria). For the purpose of evaluating the toxicological risk in the abovementioned area. The concentrations of total Dichlorodiphényltrichloroéthane (∑DDT) was present at highly significant levels (P˃0.001) compared to other OCPs, thus displayed in the following descending order: ∑DDTs > Lindane > Heptachlor. These OCPs had largely bioaccumulated in the gills compared to muscles. The PCA projection reported significant positive correlations between the concentrations of Lindane, DichloroDiphenyldichloroEthylene (DDE), DDD, DDT, and Heptachlor in gills and muscles. Seasonal variations of (OCPs) showed the highest average concentrations in the muscle and gills of fish collected mainly in Winter and Autumn (p < 0.001). The lowest concentrations were noted during the Spring and Summer periods. Significant negative correlations existed between the CAT, TBARS, GST and Lindane, ∑DDTs, and Heptachlor. The AChE (in liver and muscles) showed significant negative correlations with total DDT, with Correlation coefficient values R = - 0.67, R = - 0.64, respectively (significant R > 0.5). This study underlines that the bay of Oran suffers from chemical defilement.
{"title":"BIOACCUMULATION AND BIOMARKER RESPONSES CAUSED BY ORGANOCHLORINE PESTICIDES IN BOGUE BOOPS BOOPS (LINNEAUS, 1758) FROM THE BAY OF ORAN, ALGERIA","authors":"L. Belhabib, F. Belhoucine, A. Tabeche, A. Alioua","doi":"10.15666/aeer/2102_16291654","DOIUrl":"https://doi.org/10.15666/aeer/2102_16291654","url":null,"abstract":". In the present study we investigated the concentration of organochlorine pesticides (OCPs) in the gills and muscles as well as the levels of Thiobarbituric acid-reactive substances (TBARS), Catalase, GlutathioneS-Transferase (GST) and Acetylcholinesterase (AChE) activity in the liver and muscles of the bogue Boops boops (Linneaus,1758) fish that were caught in the bay of Oran (Algeria). For the purpose of evaluating the toxicological risk in the abovementioned area. The concentrations of total Dichlorodiphényltrichloroéthane (∑DDT) was present at highly significant levels (P˃0.001) compared to other OCPs, thus displayed in the following descending order: ∑DDTs > Lindane > Heptachlor. These OCPs had largely bioaccumulated in the gills compared to muscles. The PCA projection reported significant positive correlations between the concentrations of Lindane, DichloroDiphenyldichloroEthylene (DDE), DDD, DDT, and Heptachlor in gills and muscles. Seasonal variations of (OCPs) showed the highest average concentrations in the muscle and gills of fish collected mainly in Winter and Autumn (p < 0.001). The lowest concentrations were noted during the Spring and Summer periods. Significant negative correlations existed between the CAT, TBARS, GST and Lindane, ∑DDTs, and Heptachlor. The AChE (in liver and muscles) showed significant negative correlations with total DDT, with Correlation coefficient values R = - 0.67, R = - 0.64, respectively (significant R > 0.5). This study underlines that the bay of Oran suffers from chemical defilement.","PeriodicalId":7975,"journal":{"name":"Applied Ecology and Environmental Research","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67127694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.15666/aeer/2102_16971710
I. Bouasla, A. Bouasla, C. Barour, S. Zekri, Y. Hafidi, T. Hamel
. The aim of the present work is the scientific evaluation of an Algerian endemic taxa ( Hypochaeris laevigata var . hipponensis Maire) widely used in folk medicine. For this objective, the active compounds, mineral element composition and antioxidant effects of three different extracts prepared from leaves were determined. Essays were started by a phytochemical screening, followed by mineral elements determination and leaf extract preparation using three organic solvents. The concentration of polyphenols, flavonoids, tannins, flavanols and orthodiphenols was determined in each extract as well as the radical scavenging activities and the total antioxidant properties. Correlation between bioactive compounds and antioxidant activities was also evaluated. Ethyl acetate extract showed the highest levels of polyphenols while the lowest one was found in raw extract, which contains the most important tannins. However, the lowest rate in anthocyanin was noted in butanol extract. Our data indicated that antioxidant properties varied according to extract type and radical scavenging used assay, indeed the half-maximal inhibitory concentration (IC 50 ) value ranged between 0.71 ± 0.02 and 7.00 ± 0.62 mg/g extract. Several positive correlations between secondary metabolite contents and antioxidant activities were registered. The obtained results support the influence of solvent extracts on bioactive compounds. These phytochemical constituents as well as mineral elements provide substantial antioxidant activities and explain the effectiveness of the studied species as traditional remedy.
{"title":"MINERAL COMPOSITION, PHYTOCHEMICAL EXPLORATION AND ANTIOXIDANT ACTIVITIES OF AN ENDEMIC TAXA: HYPOCHAERIS LAEVIGATA VAR. HIPPONENSIS MAIRE","authors":"I. Bouasla, A. Bouasla, C. Barour, S. Zekri, Y. Hafidi, T. Hamel","doi":"10.15666/aeer/2102_16971710","DOIUrl":"https://doi.org/10.15666/aeer/2102_16971710","url":null,"abstract":". The aim of the present work is the scientific evaluation of an Algerian endemic taxa ( Hypochaeris laevigata var . hipponensis Maire) widely used in folk medicine. For this objective, the active compounds, mineral element composition and antioxidant effects of three different extracts prepared from leaves were determined. Essays were started by a phytochemical screening, followed by mineral elements determination and leaf extract preparation using three organic solvents. The concentration of polyphenols, flavonoids, tannins, flavanols and orthodiphenols was determined in each extract as well as the radical scavenging activities and the total antioxidant properties. Correlation between bioactive compounds and antioxidant activities was also evaluated. Ethyl acetate extract showed the highest levels of polyphenols while the lowest one was found in raw extract, which contains the most important tannins. However, the lowest rate in anthocyanin was noted in butanol extract. Our data indicated that antioxidant properties varied according to extract type and radical scavenging used assay, indeed the half-maximal inhibitory concentration (IC 50 ) value ranged between 0.71 ± 0.02 and 7.00 ± 0.62 mg/g extract. Several positive correlations between secondary metabolite contents and antioxidant activities were registered. The obtained results support the influence of solvent extracts on bioactive compounds. These phytochemical constituents as well as mineral elements provide substantial antioxidant activities and explain the effectiveness of the studied species as traditional remedy.","PeriodicalId":7975,"journal":{"name":"Applied Ecology and Environmental Research","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67127901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：