Pub Date : 2023-01-01DOI: 10.15666/aeer/2103_26992718
D. Zhang, Y. Zong, Y. Qiao, J. Wang, Lanqian Hu
{"title":"BACTERIAL COMMUNITY STRUCTURE AND ITS INFLUENCING FACTORS IN SURFACE SEDIMENTS OF THE NYANG RIVER IN THE DRY SEASON, CHINA","authors":"D. Zhang, Y. Zong, Y. Qiao, J. Wang, Lanqian Hu","doi":"10.15666/aeer/2103_26992718","DOIUrl":"https://doi.org/10.15666/aeer/2103_26992718","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":"67130621","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/2104_31773192
L. Qiao, C. Ren, X. Sun, T.J. Li, F. Gui, A. Zhao
. Benthic foraminifera are good indicators for monitoring marine environmental pollution and recovery of marine ecosystem. In this study, high-throughput sequencing based on small subunit rDNA and rRNA amplifications was used to assess total and active benthic foraminifera diversity and community composition in intertidal sediments near China Resources Wenzhou Power Plant. The results showed that the closer to the power plant, the lower the diversity and richness of both total and active foraminifera are. The total assemblages had higher values of species diversity and richness than active communities. a total of 33 and 25 foraminifera genera were identified using DNA-based and RNA-based HTS, respectively. The dominant genera included Vellaria , Stainforthia and Miliammina in total foraminiferal communities, and became Ammonia , Miliammina and Notorotalia in active foraminiferal communities at the station slightly away from the power plant; while only one dominant genus, Haplomyxa , was detected close to the power plant.
{"title":"BENTHIC FORAMINIFERAL COMMUNITY STRUCTURE AND DIVERSITY IN INTERTIDAL ZONE NEAR CHINA RESOURCES WENZHOU POWER PLANT","authors":"L. Qiao, C. Ren, X. Sun, T.J. Li, F. Gui, A. Zhao","doi":"10.15666/aeer/2104_31773192","DOIUrl":"https://doi.org/10.15666/aeer/2104_31773192","url":null,"abstract":". Benthic foraminifera are good indicators for monitoring marine environmental pollution and recovery of marine ecosystem. In this study, high-throughput sequencing based on small subunit rDNA and rRNA amplifications was used to assess total and active benthic foraminifera diversity and community composition in intertidal sediments near China Resources Wenzhou Power Plant. The results showed that the closer to the power plant, the lower the diversity and richness of both total and active foraminifera are. The total assemblages had higher values of species diversity and richness than active communities. a total of 33 and 25 foraminifera genera were identified using DNA-based and RNA-based HTS, respectively. The dominant genera included Vellaria , Stainforthia and Miliammina in total foraminiferal communities, and became Ammonia , Miliammina and Notorotalia in active foraminiferal communities at the station slightly away from the power plant; while only one dominant genus, Haplomyxa , was detected close to the power plant.","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":"67131606","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/2104_37553765
C.H. Xu, C. Hu, Z. Zhang, X. Peng, G. Hu
. Understanding the ecological stoichiometry in the growth of different stand ages of Eucalyptus plantations is essential to evaluate the effects of management practices on biogeochemical cycling in plantation forest ecosystems. The study examined the relationship between leaf, litter, and soil stoichiometry on 3-, 6, 9-and 12-year-old Eucalyptus grandis x urophylla plantations in subtropical China. Results showed that (1) With increased stand age, the concentrations of TN (total nitrogen) and TP (total phosphorus) in leaf and litter increased gradually. Leaf TC (total carbon) concentration decreased gradually, litter TC concentration initially increased and then decreased, and the concentrations of TC and TN in soil were opposite. Soil TC and TN concentrations decreased with increasing soil depth. (2) The ratios of C:N, C:P, N:P were litter > leaf > soil. With increasing stand age, C:N and C:P of leaf and litter decreased gradually, while the ratios of C:N, C:P, N:P of soil fluctuated greatly. (3) There were significant negative correlations between the C, N of soil and litter P and significant positive correlation was between the leaf C:N and litter C:P. The main limiting element was P. The results of this study can provide a scientific basis for the management of Eucalyptus grandis x urophylla plantations.
{"title":"ECOLOGICAL STOICHIOMETRIC CHARACTERISTICS OF LEAF, LITTER, AND SOIL IN EUCALYPTUS PLANTATIONS WITH DIFFERENT AGES IN SUBTROPICAL, SOUTH CHINA","authors":"C.H. Xu, C. Hu, Z. Zhang, X. Peng, G. Hu","doi":"10.15666/aeer/2104_37553765","DOIUrl":"https://doi.org/10.15666/aeer/2104_37553765","url":null,"abstract":". Understanding the ecological stoichiometry in the growth of different stand ages of Eucalyptus plantations is essential to evaluate the effects of management practices on biogeochemical cycling in plantation forest ecosystems. The study examined the relationship between leaf, litter, and soil stoichiometry on 3-, 6, 9-and 12-year-old Eucalyptus grandis x urophylla plantations in subtropical China. Results showed that (1) With increased stand age, the concentrations of TN (total nitrogen) and TP (total phosphorus) in leaf and litter increased gradually. Leaf TC (total carbon) concentration decreased gradually, litter TC concentration initially increased and then decreased, and the concentrations of TC and TN in soil were opposite. Soil TC and TN concentrations decreased with increasing soil depth. (2) The ratios of C:N, C:P, N:P were litter > leaf > soil. With increasing stand age, C:N and C:P of leaf and litter decreased gradually, while the ratios of C:N, C:P, N:P of soil fluctuated greatly. (3) There were significant negative correlations between the C, N of soil and litter P and significant positive correlation was between the leaf C:N and litter C:P. The main limiting element was P. The results of this study can provide a scientific basis for the management of Eucalyptus grandis x urophylla plantations.","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":"67132628","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/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/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_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}
Pub Date : 2023-01-01DOI: 10.15666/aeer/2102_17891804
M. M. Alqahtani
. The biodiversity of 11 fern populations representing nine species belonging to three families ( Aspleniaceae , Adiantaceae , and Pteridaceae ) was evaluated using morphological variations and molecular polymorphism generated by 12 ISSR primers. Substantial variations were scored in 16 morphological characters and reflected in the cluster analysis of the examined accessions based on morphological variation. In the phylogenetic relationships generated based on ISSR polymorphism and morphological variations, the three Cheilanthes species clustered with Asplenium adiantum nigrum and were delimited from other species, which supports that A. adiantum nigrum may be related to Cheilanthes species. In the meantime, the two populations of Asplenium ceterach and the two populations of Asplenium aethiopicum were differentiated as one cluster. These results are congruent with the cluster based on the analysis of ISSR data except for the association of Adiantum capillus veneris and Asplenium trichomanes , which revealed that A. trichomanes may be related to Adiantum capillus veneris . Also, these results were confirmed by the tree obtained based on the Elucedine coefficient and with the population grouping based on principal component analysis (PCA) using the PAST program. Also, Online Marker Efficiency Calculator (iMEC) supports the use of ISSR markers for examining the genetic diversity across fern genotypes.
{"title":"BIODIVERSITY OF SOME PTERIDOPHYTES SPECIES AND THEIR MORPHOLOGICAL CHARACTERISTICS FROM THE SOUTHWEST OF SAUDI ARABIA","authors":"M. M. Alqahtani","doi":"10.15666/aeer/2102_17891804","DOIUrl":"https://doi.org/10.15666/aeer/2102_17891804","url":null,"abstract":". The biodiversity of 11 fern populations representing nine species belonging to three families ( Aspleniaceae , Adiantaceae , and Pteridaceae ) was evaluated using morphological variations and molecular polymorphism generated by 12 ISSR primers. Substantial variations were scored in 16 morphological characters and reflected in the cluster analysis of the examined accessions based on morphological variation. In the phylogenetic relationships generated based on ISSR polymorphism and morphological variations, the three Cheilanthes species clustered with Asplenium adiantum nigrum and were delimited from other species, which supports that A. adiantum nigrum may be related to Cheilanthes species. In the meantime, the two populations of Asplenium ceterach and the two populations of Asplenium aethiopicum were differentiated as one cluster. These results are congruent with the cluster based on the analysis of ISSR data except for the association of Adiantum capillus veneris and Asplenium trichomanes , which revealed that A. trichomanes may be related to Adiantum capillus veneris . Also, these results were confirmed by the tree obtained based on the Elucedine coefficient and with the population grouping based on principal component analysis (PCA) using the PAST program. Also, Online Marker Efficiency Calculator (iMEC) supports the use of ISSR markers for examining the genetic diversity across fern genotypes.","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":"67128049","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/2103_19791989
R. Yunita, P. H. Sinaga, E. Lestari, I. Dewi, R. Purnamaningsih, Mastur
. The purpose of this study was to determine the yield stability, adaptability, and agronomic traits of 10 saline-tolerant mutant rice lines at six locations with diverse saline conditions in Indonesia. This research was conducted in six saline soil locations, with the electrical conductivity (EC) ranging from 6.2 to 12.7 dSm -1 ). The field experiments were arranged in a randomized complete block design (RCBD) with rice genotype as the factor. Each experimental unit was 4 m x 5 m of plots. The genotype treatment consisted of ten lines of salinity-tolerant mutant rice and four control varieties. Inpari 34 and Inpari 35 Salin agritan were the tolerant control varieties. The parent-control varieties were Ciherang (sensitive) and Inpari 13 (moderate). Each treatment was replicated three times. The results showed five mutant lines, namely CH-1, CH-2, CH-3, II-13-14, and II-13-78, were confirmed as being adaptive to saline environments. Two mutant lines (CH-1 and II-13-78) had high average productivity (>7 tons ha -1 ) and potential yields (>8.5 tons ha -1 ) that were significantly different from the parents and control saline-tolerant varieties. Supported by good agronomic characteristics, those two mutant lines have the potential to be released as new rice varieties tolerant to salinity.
{"title":"YIELD AND AGRONOMIC PERFORMANCE OF SALINETOLERANT RICE MUTANT LINES","authors":"R. Yunita, P. H. Sinaga, E. Lestari, I. Dewi, R. Purnamaningsih, Mastur","doi":"10.15666/aeer/2103_19791989","DOIUrl":"https://doi.org/10.15666/aeer/2103_19791989","url":null,"abstract":". The purpose of this study was to determine the yield stability, adaptability, and agronomic traits of 10 saline-tolerant mutant rice lines at six locations with diverse saline conditions in Indonesia. This research was conducted in six saline soil locations, with the electrical conductivity (EC) ranging from 6.2 to 12.7 dSm -1 ). The field experiments were arranged in a randomized complete block design (RCBD) with rice genotype as the factor. Each experimental unit was 4 m x 5 m of plots. The genotype treatment consisted of ten lines of salinity-tolerant mutant rice and four control varieties. Inpari 34 and Inpari 35 Salin agritan were the tolerant control varieties. The parent-control varieties were Ciherang (sensitive) and Inpari 13 (moderate). Each treatment was replicated three times. The results showed five mutant lines, namely CH-1, CH-2, CH-3, II-13-14, and II-13-78, were confirmed as being adaptive to saline environments. Two mutant lines (CH-1 and II-13-78) had high average productivity (>7 tons ha -1 ) and potential yields (>8.5 tons ha -1 ) that were significantly different from the parents and control saline-tolerant varieties. Supported by good agronomic characteristics, those two mutant lines have the potential to be released as new rice varieties tolerant to salinity.","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":"67128672","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/2103_21572171
H. Xu, H. Qin, H. Li, Z. Zhu
. This study takes Xuzhou Quanshan District of China as the research object, firstly, the two-step floating catchment area method was used to evaluate the green space supply level; and then, Gini coefficient and Lorentz curve were used to evaluate the spatial distribution fairness of urban green space; finally, the optimization layout strategy was put forward in three stages. The results showed that: 1) the green space supply of different sub-district varies greatly, the supply level in the south is higher than that in the north. There are three sub-districts lower than the standard of 5.5 m 2 /person. 2) The average supply of green space in 453 residential areas is 12.66 m 2 /person, as many as 68.3% of the residential areas did not meet the 14.6 m 2 /person, of which 181 residential areas were less than 5.5 m 2 /person, accounting for 40.0% of the total. 3) The Gini coefficient of the distribution of green space in 453 residential areas has reached 0.3659, which is close to the warning level. 4) After the optimization layouts, a total of 243.792 hm 2 of green space was added. The residential-level Gini coefficient was reduced by 31.7% to 0.2499, meanwhile the Gini coefficient of each sub-district was less than 0.4.
{"title":"RESEARCH ON SUPPLY FAIRNESS EVALUATION AND OPTIMIZED LAYOUT OF URBAN GREEN SPACE IN XUZHOU QUANSHAN DISTRICT, CHINA","authors":"H. Xu, H. Qin, H. Li, Z. Zhu","doi":"10.15666/aeer/2103_21572171","DOIUrl":"https://doi.org/10.15666/aeer/2103_21572171","url":null,"abstract":". This study takes Xuzhou Quanshan District of China as the research object, firstly, the two-step floating catchment area method was used to evaluate the green space supply level; and then, Gini coefficient and Lorentz curve were used to evaluate the spatial distribution fairness of urban green space; finally, the optimization layout strategy was put forward in three stages. The results showed that: 1) the green space supply of different sub-district varies greatly, the supply level in the south is higher than that in the north. There are three sub-districts lower than the standard of 5.5 m 2 /person. 2) The average supply of green space in 453 residential areas is 12.66 m 2 /person, as many as 68.3% of the residential areas did not meet the 14.6 m 2 /person, of which 181 residential areas were less than 5.5 m 2 /person, accounting for 40.0% of the total. 3) The Gini coefficient of the distribution of green space in 453 residential areas has reached 0.3659, which is close to the warning level. 4) After the optimization layouts, a total of 243.792 hm 2 of green space was added. The residential-level Gini coefficient was reduced by 31.7% to 0.2499, meanwhile the Gini coefficient of each sub-district was less than 0.4.","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":"67128986","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}
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