Pub Date : 2023-01-01DOI: 10.15666/aeer/2104_32233241
Z. Wang, Z. Gai, T. Yang, J. Zhai, Z. Wu, X. Guo, X. Chen, J. Sun, P. Jiao, Z. Li
. Populus euphratica ( Pe ) and Populus pruinosa ( Pp ) are important dominant species for maintaining ecological balance in desert and arid areas. Understanding the distribution of potentially suitable areas of Pe and Pp in arid areas is of great significance for the protection and restoration of natural Pe and Pp forests. The optimized MaxEnt was used to reconstruct and predict the potential suitable areas of Pe and Pp in China, and calculate the migration of distribution center points. The results showed that (1) the geographical distribution of Pe was mainly affected by coldest month minimum temperature (Bio6), mean Temperature of Warmest Quarter (Bio10). The geographical distribution of Pp was mainly affected by coldest month minimum temperature (Bio6), temperature Annual Range (Bio7); (2) under the current climatic scenarios, the potential suitable areas of Pe and Pp in China are 141.16 × 10 4 km 2 and 172.25 × 10 4 km 2 ;(3) The niche overlap D and I values of Pe and Pp were 0.533 and 0.775 respectively; (4) under the future climate scenario, the potential high-fitness area of Pe and Pp would shift to higher latitudes. Our research provides a scientific basis for the long-term protection and management of these rare natural resources.
． 胡杨(Populus euphratica, Pe)和白杨(Populus pruinosa, Pp)是荒漠干旱区维持生态平衡的重要优势种。了解干旱区潜在适宜区Pe、Pp的分布对天然Pe、Pp林的保护和恢复具有重要意义。利用优化后的MaxEnt对中国Pe和Pp的潜在适宜区进行了重构和预测，并计算了分布中心点的偏移量。结果表明:(1)Pe的地理分布主要受最冷月最低气温(Bio6)和最暖季平均气温(Bio10)的影响。Pp的地理分布主要受最冷月最低气温(Bio6)、气温年差(Bio7)的影响;(2)在当前气候情景下，中国Pe和Pp的潜在适宜面积分别为141.16 × 10.4 km 2和172.25 × 10.4 km 2;(3) Pe和Pp的生态位重叠D值和I值分别为0.533和0.775;(4)在未来气候情景下，Pe和Pp的潜在高适宜区将向高纬度地区转移。我们的研究为这些珍稀自然资源的长期保护和管理提供了科学依据。
{"title":"PREDICTION OF THE DISTRIBUTION AREA AND ENVIRONMENTAL VARIABLES OF POPULUS EUPHRATICA AND POPULUS PRUINOSA IN CHINA BASED ON THE OPTIMIZED MAXENT MODEL","authors":"Z. Wang, Z. Gai, T. Yang, J. Zhai, Z. Wu, X. Guo, X. Chen, J. Sun, P. Jiao, Z. Li","doi":"10.15666/aeer/2104_32233241","DOIUrl":"https://doi.org/10.15666/aeer/2104_32233241","url":null,"abstract":". Populus euphratica ( Pe ) and Populus pruinosa ( Pp ) are important dominant species for maintaining ecological balance in desert and arid areas. Understanding the distribution of potentially suitable areas of Pe and Pp in arid areas is of great significance for the protection and restoration of natural Pe and Pp forests. The optimized MaxEnt was used to reconstruct and predict the potential suitable areas of Pe and Pp in China, and calculate the migration of distribution center points. The results showed that (1) the geographical distribution of Pe was mainly affected by coldest month minimum temperature (Bio6), mean Temperature of Warmest Quarter (Bio10). The geographical distribution of Pp was mainly affected by coldest month minimum temperature (Bio6), temperature Annual Range (Bio7); (2) under the current climatic scenarios, the potential suitable areas of Pe and Pp in China are 141.16 × 10 4 km 2 and 172.25 × 10 4 km 2 ;(3) The niche overlap D and I values of Pe and Pp were 0.533 and 0.775 respectively; (4) under the future climate scenario, the potential high-fitness area of Pe and Pp would shift to higher latitudes. Our research provides a scientific basis for the long-term protection and management of these rare natural resources.","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":"67131917","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_33493362
J. Singh, K. Kumar, R. Kumar, S. Sharma
. Polygonatum cirrhifolium (Wall.) Royle and Polygonatum verticillatum (L.) All. are important medicinal herbs of the ‘Ashtavarga group’ of medicinal plants and belongs to the family Asparagaceae. The populations of these species are declining in the natural habitat due to various anthropogenic factors; hence, it is important to know existing status of the species for devising conservation and management plan. Keeping that in view, study was conducted in different geographical locations of Himachal Pradesh during June-September 2019. Nine sites falling in four districts for P. cirrhifolium and 23 sites falling in five districts for P. verticillatum were selected to assess their population status by quadrat method using random sampling and following vertical belt transects approach. The population of the P. cirrhifolium was recorded maximum at Kulang site (Dm -2 = 7.27 ± 10.91, F = 23.33%), and lowest at Shakoli (Dm -2 = 0.43 ± 0.82, F = 13.33%). The value of abundance ranged from 2.89 (Batseri) to 14.25 (Nichar). IVI was found maximum at Kulang (61.72) and the lowest at Shakoli (9.16) site. Whereas population of P. verticillatum was recorded maximum at Hatu (Dm -2 = 8.33 ± 3.43, F = 60%), and lowest at Paneta Khud (Dm -2 = 0.73 ± 1.24, F = 20.0%). The value of abundance ranged from 3.62 (Kothi) to 13.89 (Hatu). Frequency was found maximum at Baghi (66.67%) and lowest at Paneta Khud (20.0%). The Shannon diversity index and IVI was found maximum at Jamathu (0.36 and 91.02) and lowest at Paneta Khad (0.18 and 19.81). Both species were distributed in small populations with low density and frequency and were found geographically isolated.
{"title":"POPULATION ASSESSMENT AND DISTRIBUTION OF POLYGONATUM CIRRHIFOLIUM (WALL.) ROYLE AND POLYGONATUM VERTICILLATUM (L.) ALL. IN HIMACHAL HIMALAYAS, INDIA","authors":"J. Singh, K. Kumar, R. Kumar, S. Sharma","doi":"10.15666/aeer/2104_33493362","DOIUrl":"https://doi.org/10.15666/aeer/2104_33493362","url":null,"abstract":". Polygonatum cirrhifolium (Wall.) Royle and Polygonatum verticillatum (L.) All. are important medicinal herbs of the ‘Ashtavarga group’ of medicinal plants and belongs to the family Asparagaceae. The populations of these species are declining in the natural habitat due to various anthropogenic factors; hence, it is important to know existing status of the species for devising conservation and management plan. Keeping that in view, study was conducted in different geographical locations of Himachal Pradesh during June-September 2019. Nine sites falling in four districts for P. cirrhifolium and 23 sites falling in five districts for P. verticillatum were selected to assess their population status by quadrat method using random sampling and following vertical belt transects approach. The population of the P. cirrhifolium was recorded maximum at Kulang site (Dm -2 = 7.27 ± 10.91, F = 23.33%), and lowest at Shakoli (Dm -2 = 0.43 ± 0.82, F = 13.33%). The value of abundance ranged from 2.89 (Batseri) to 14.25 (Nichar). IVI was found maximum at Kulang (61.72) and the lowest at Shakoli (9.16) site. Whereas population of P. verticillatum was recorded maximum at Hatu (Dm -2 = 8.33 ± 3.43, F = 60%), and lowest at Paneta Khud (Dm -2 = 0.73 ± 1.24, F = 20.0%). The value of abundance ranged from 3.62 (Kothi) to 13.89 (Hatu). Frequency was found maximum at Baghi (66.67%) and lowest at Paneta Khud (20.0%). The Shannon diversity index and IVI was found maximum at Jamathu (0.36 and 91.02) and lowest at Paneta Khad (0.18 and 19.81). Both species were distributed in small populations with low density and frequency and were found geographically isolated.","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":"67132053","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_33913401
N. Khatoon, N. Ullah, A. Sarwar, S. ur Rahman, A. Khan, T. Aziz, M. Alharbi, A. Alshammari
. Proteases have received a lot of attention in recent years thanks to their use in a variety of industries, including the food, feed, leather, textile, and pharmaceutical sectors. The soil sample from a cold climate was used in the current experimental study of protease production. In order to identify the protease-producing bacterial species, morphological, physiological, and biochemical analyses were carried out, and the isolated bacterial strain’s ability to produce proteases on skim milk agar was assessed. As a result of casein hydrolysis, a zone formed surrounding the bacterial colony suggested a protease-positive strain. To increase the production of protease by isolated Bacillus species, various sources of nitrogen and carbon were examined. Yeast extract (309.32 IU/ml) was the nitrogen source that supported growth the best among the other sources studied, and fructose (269.4 IU/ml) was the carbon source that produced the most protease activity. The fermentation time of 72 h (393.7033 IU/ml) was anticipated to be the best setting for protease synthesis. When 2% (w/v) soybean meal was employed, protease activity was measured at 494.92 IU/ml. The influence of pH was investigated, and it was discovered that 7.5 was the best and optimal pH for Bacillus species to produce 511 IU/ml of protease. When the temperature range was discovered to be 40°C, the highest protease activity of 542.93 IU/ml was recorded.
{"title":"ISOLATION AND IDENTIFICATION OF PROTEASEPRODUCING BACILLUS STRAIN FROM COLD CLIMATE SOIL AND OPTIMIZATION OF ITS PRODUCTION BY APPLYING DIFFERENT FERMENTATION CONDITIONS","authors":"N. Khatoon, N. Ullah, A. Sarwar, S. ur Rahman, A. Khan, T. Aziz, M. Alharbi, A. Alshammari","doi":"10.15666/aeer/2104_33913401","DOIUrl":"https://doi.org/10.15666/aeer/2104_33913401","url":null,"abstract":". Proteases have received a lot of attention in recent years thanks to their use in a variety of industries, including the food, feed, leather, textile, and pharmaceutical sectors. The soil sample from a cold climate was used in the current experimental study of protease production. In order to identify the protease-producing bacterial species, morphological, physiological, and biochemical analyses were carried out, and the isolated bacterial strain’s ability to produce proteases on skim milk agar was assessed. As a result of casein hydrolysis, a zone formed surrounding the bacterial colony suggested a protease-positive strain. To increase the production of protease by isolated Bacillus species, various sources of nitrogen and carbon were examined. Yeast extract (309.32 IU/ml) was the nitrogen source that supported growth the best among the other sources studied, and fructose (269.4 IU/ml) was the carbon source that produced the most protease activity. The fermentation time of 72 h (393.7033 IU/ml) was anticipated to be the best setting for protease synthesis. When 2% (w/v) soybean meal was employed, protease activity was measured at 494.92 IU/ml. The influence of pH was investigated, and it was discovered that 7.5 was the best and optimal pH for Bacillus species to produce 511 IU/ml of protease. When the temperature range was discovered to be 40°C, the highest protease activity of 542.93 IU/ml was recorded.","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":"67132170","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_24172439
D. Gaire, L. Jiang, B. Adhikari, S. Panthi
{"title":"PREDICTING HABITAT SUITABILITY AND THREATS ASSESSMENT OF HIMALAYAN YEW (TAXUS WALLICHIANA ZUCC.) IN NEPAL","authors":"D. Gaire, L. Jiang, B. Adhikari, S. Panthi","doi":"10.15666/aeer/2103_24172439","DOIUrl":"https://doi.org/10.15666/aeer/2103_24172439","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":"67129721","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_47354744
L. COSKUNTUNA
. Grape seed is a product that is released as waste during the processing of grapes. It is described as ecological damage. Recently, its availability in animal nutrition has been discussed due to the high content of tannins and phenolics contained in it. It is thought that grape seeds can reduce the adverse conditions that occur in the rumen with the high amount of antioxidant properties they contain. This study investigated the effects of grape seed on acidosis and gas production in the rumen under in vitro conditions. The nutritional composition of the present product, in vitro gas production (GP), and the differentiation of gases formed in the rumen (NH 3 , CH 4, and CO 2 ) under acidosis conditions were determined. The pH values of the rumen fluid were measured at the 0, 24, 48, and 96th hours of incubation. Grape seed did not have an effect on rumen pH under normal conditions. However, in the rumen, due to its high amount of antioxidant properties during periods of acidosis, it showed a positive effect on the linear improvement of intra-rumen pH. It was concluded that further studies should be conducted, in which the mechanism of action of grape seed on animals with acidosis was studied.
{"title":"EFFECT OF GRAPE SEED ON ACIDOSIS AND RUMEN GASES IN IN VITRO CONDITIONS","authors":"L. COSKUNTUNA","doi":"10.15666/aeer/2105_47354744","DOIUrl":"https://doi.org/10.15666/aeer/2105_47354744","url":null,"abstract":". Grape seed is a product that is released as waste during the processing of grapes. It is described as ecological damage. Recently, its availability in animal nutrition has been discussed due to the high content of tannins and phenolics contained in it. It is thought that grape seeds can reduce the adverse conditions that occur in the rumen with the high amount of antioxidant properties they contain. This study investigated the effects of grape seed on acidosis and gas production in the rumen under in vitro conditions. The nutritional composition of the present product, in vitro gas production (GP), and the differentiation of gases formed in the rumen (NH 3 , CH 4, and CO 2 ) under acidosis conditions were determined. The pH values of the rumen fluid were measured at the 0, 24, 48, and 96th hours of incubation. Grape seed did not have an effect on rumen pH under normal conditions. However, in the rumen, due to its high amount of antioxidant properties during periods of acidosis, it showed a positive effect on the linear improvement of intra-rumen pH. It was concluded that further studies should be conducted, in which the mechanism of action of grape seed on animals with acidosis was studied.","PeriodicalId":7975,"journal":{"name":"Applied Ecology and Environmental Research","volume":"1 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":"135007723","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_44074423
M. JIANG, Z. CHEN, Y. LI, J.Q. WANG, X.P. SHEN
. To study the influences of the physical and chemical properties of different seedling cultivation substrates on the quality and yield of machine-transplanted seedlings in China, seeds of the rice (Oryza sativa L.) variety Yangjing 805 were sown in topsoil (TS), commercial seedling substrate (CS), straw (ST), rice husk (RH) and mushroom residue (MR). Changes in the seedling quality, nutrient content, and grain yield were analyzed. The results showed that the morphological indices and nitrogen metabolism-related enzymatic activities of seedlings treated with TS, CS, and MR were significantly higher than of those treated with ST and RH. The reduction in total N, alkali-hydrolyzed N, and available P was lower under TS and MR than under any other treatment. The highest rice yield was recorded for the MR treatment, with a 28.93% higher yield compared with the ST treatment. Among the seedling morphological indices, stem thickness (R 2 = 0.9604) and shoot dry weight (R 2 = 0.8835) showed the highest correlations with yield, while root length (R 2 = 0.8919) and root surface area (R 2 = 0.9125) were the root indices with maximum values. The variables that showed the closest relationship with seedling quality were bulk density, conductivity, and pH of the growing medium.
{"title":"EFFECTS OF DIFFERENT SEEDLING SUBSTRATES ON SEEDLING QUALITY AND YIELD OF MACHINETRANSPLANTED RICE","authors":"M. JIANG, Z. CHEN, Y. LI, J.Q. WANG, X.P. SHEN","doi":"10.15666/aeer/2105_44074423","DOIUrl":"https://doi.org/10.15666/aeer/2105_44074423","url":null,"abstract":". To study the influences of the physical and chemical properties of different seedling cultivation substrates on the quality and yield of machine-transplanted seedlings in China, seeds of the rice (Oryza sativa L.) variety Yangjing 805 were sown in topsoil (TS), commercial seedling substrate (CS), straw (ST), rice husk (RH) and mushroom residue (MR). Changes in the seedling quality, nutrient content, and grain yield were analyzed. The results showed that the morphological indices and nitrogen metabolism-related enzymatic activities of seedlings treated with TS, CS, and MR were significantly higher than of those treated with ST and RH. The reduction in total N, alkali-hydrolyzed N, and available P was lower under TS and MR than under any other treatment. The highest rice yield was recorded for the MR treatment, with a 28.93% higher yield compared with the ST treatment. Among the seedling morphological indices, stem thickness (R 2 = 0.9604) and shoot dry weight (R 2 = 0.8835) showed the highest correlations with yield, while root length (R 2 = 0.8919) and root surface area (R 2 = 0.9125) were the root indices with maximum values. The variables that showed the closest relationship with seedling quality were bulk density, conductivity, and pH of the growing medium.","PeriodicalId":7975,"journal":{"name":"Applied Ecology and Environmental Research","volume":"69 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":"136306433","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_38653885
K. AL-JAF, C. OMAR, A. VAZIRY
. This study was carried out to examine the effects of Urtica dioica extract on goat cryopreserved semen quality. The ejaculates of Markhoz goats (n = 12) were collected by an electro-ejaculator. The semen was diluted and supplemented with different concentration of aqueous or hydroalcoholic Urtica dioica extract of aerial or root parts as follows: aerial-aqueous (AA1 5μg/ml , AA2 15μg/ml and AA3 45μg/ml ); aerial-ethanolic (AE1 5μg/ml , AE2 15μg/ml and AE3 45μg/ml ); root aqueous (RA1 5μg/ml , RA2 15μg/ml and RA3 45μg/ml ); root-ethanolic (RE1 5μg/ml , RE 215μg/ml and RE3 45μg/ml ) and control (CCC 0mg/ml ) without additives. After thawing, sperm samples were subjected to viability, acrosome integrity, plasma membrane integrity, motility, sperm chromatin dispersion (SCD) and concentration of malondialdehyde (MDA) assays. Addition of AA1 5μg/ml to the extender significantly (P < 0.05) improved progressive motility, viability, plasma membrane integrity, acrosome integrity, and DNA integrity of the semen samples. Sperm viability and plasma membrane integrity in aqueous extract (both aerial & root parts)-supplemented extenders were relatively higher, as compared to the control. Moreover, a significant decrease in MDA concentration was detected in semen supplemented with Urtica dioica extract treatments. In conclusion, the results indicate that 5μg/ml of aqueous extract of Urtica dioica aerial part improved sperm quality and could be recommended as an additive to the extender for cryopreservation. This study shows a novel approach in goat semen cryopreservation due to the remarkable influence of Urtica dioica on post-thawed sperm parameters.
{"title":"EXCEPTIONAL ANTIOXIDANT EFFECT OF URTICA DIOICA EXTRACT ON MOTILITY AND SOME OTHER POST THAWED GOAT SEMEN CHARACTERISTICS","authors":"K. AL-JAF, C. OMAR, A. VAZIRY","doi":"10.15666/aeer/2105_38653885","DOIUrl":"https://doi.org/10.15666/aeer/2105_38653885","url":null,"abstract":". This study was carried out to examine the effects of Urtica dioica extract on goat cryopreserved semen quality. The ejaculates of Markhoz goats (n = 12) were collected by an electro-ejaculator. The semen was diluted and supplemented with different concentration of aqueous or hydroalcoholic Urtica dioica extract of aerial or root parts as follows: aerial-aqueous (AA1 5μg/ml , AA2 15μg/ml and AA3 45μg/ml ); aerial-ethanolic (AE1 5μg/ml , AE2 15μg/ml and AE3 45μg/ml ); root aqueous (RA1 5μg/ml , RA2 15μg/ml and RA3 45μg/ml ); root-ethanolic (RE1 5μg/ml , RE 215μg/ml and RE3 45μg/ml ) and control (CCC 0mg/ml ) without additives. After thawing, sperm samples were subjected to viability, acrosome integrity, plasma membrane integrity, motility, sperm chromatin dispersion (SCD) and concentration of malondialdehyde (MDA) assays. Addition of AA1 5μg/ml to the extender significantly (P < 0.05) improved progressive motility, viability, plasma membrane integrity, acrosome integrity, and DNA integrity of the semen samples. Sperm viability and plasma membrane integrity in aqueous extract (both aerial & root parts)-supplemented extenders were relatively higher, as compared to the control. Moreover, a significant decrease in MDA concentration was detected in semen supplemented with Urtica dioica extract treatments. In conclusion, the results indicate that 5μg/ml of aqueous extract of Urtica dioica aerial part improved sperm quality and could be recommended as an additive to the extender for cryopreservation. This study shows a novel approach in goat semen cryopreservation due to the remarkable influence of Urtica dioica on post-thawed sperm parameters.","PeriodicalId":7975,"journal":{"name":"Applied Ecology and Environmental Research","volume":"97 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":"136307214","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_37913805
I.P. OGBUEWU, C.A. MBAJIORGU
. The use of different parts of plants as nutraceuticals to boost animal productivity is on the rise because of the ban on the use of antibiotic growth promoters in animal diets, and the presumption that medicinal plants have no adverse effects on animals. Analytical studies have shown that tropical plants are rich sources of beneficial phytochemicals and essential nutrients with minimal concentrations of anti-nutrients. However, most of the research on tropical medicinal plants is focused on their phytochemical with less attention given to their trace element composition and concentration. Therefore, detailed knowledge of the trace element content of tropical medicinal plants is essential in maximising their use in livestock production. Moreso, published data on trace mineral values of tropical medicinal plants used in animal production are fragmented in the literature, making it difficult to use this important information in the decision-making process. Thus, the purpose of this paper was to condense evidence on the manganese, zinc, copper, and iron content of some tropical plants used in animal production as feedstuffs or to treat a variety of ailments, as well as factors that affect their uptake and absorption in the gastrointestinal tract. This paper will also review the roles of trace minerals in enzyme systems and performance indicators of animals on dietary trace element salt supplementation.
{"title":"REVIEW OF SELECTED TRACE ELEMENTS CONTAINED IN TROPICAL MEDICINAL PLANTS UTILISED IN ANIMAL PRODUCTION","authors":"I.P. OGBUEWU, C.A. MBAJIORGU","doi":"10.15666/aeer/2105_37913805","DOIUrl":"https://doi.org/10.15666/aeer/2105_37913805","url":null,"abstract":". The use of different parts of plants as nutraceuticals to boost animal productivity is on the rise because of the ban on the use of antibiotic growth promoters in animal diets, and the presumption that medicinal plants have no adverse effects on animals. Analytical studies have shown that tropical plants are rich sources of beneficial phytochemicals and essential nutrients with minimal concentrations of anti-nutrients. However, most of the research on tropical medicinal plants is focused on their phytochemical with less attention given to their trace element composition and concentration. Therefore, detailed knowledge of the trace element content of tropical medicinal plants is essential in maximising their use in livestock production. Moreso, published data on trace mineral values of tropical medicinal plants used in animal production are fragmented in the literature, making it difficult to use this important information in the decision-making process. Thus, the purpose of this paper was to condense evidence on the manganese, zinc, copper, and iron content of some tropical plants used in animal production as feedstuffs or to treat a variety of ailments, as well as factors that affect their uptake and absorption in the gastrointestinal tract. This paper will also review the roles of trace minerals in enzyme systems and performance indicators of animals on dietary trace element salt supplementation.","PeriodicalId":7975,"journal":{"name":"Applied Ecology and Environmental Research","volume":"27 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":"136307216","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_41174134
Q.H. LUO, B. WANG, S.L. HAN, Y. LIU, X.M. MA, C. ZHANG, N. TIE
. To explore the effects of different light intensities on the physiological growth of Larix gmelinii seedlings, this study assessed three height grades of L. gmelinii seedlings (≤0.5–1, 0.5–1, and 1-3 m) under the following treatments: full light (control), 65% NS (natural sunshine), 35% NS, and 10% NS. After treatment, photosynthetic pigment content, light response curve, CO 2 response curve, Chlorophyll Fluorescence and Diurnal Variations in Photosynthesis were assessed. Shading increased the photosynthetic pigment contents of L. gmelinii seedlings and young trees and played a positive role in the adaptation of L. gmelinii seedlings and young trees to low-light environments. The maximum net photosynthetic rate, maximum carboxylation rate, maximum photoelectron transmission rate, and utilization efficiency of acetone phosphate of L. gmelinii (1–3 m) considerably increased under the 65% NS treatment, showed the strongest photoinhibition resistance and a high proportion of the open PSII reaction center. The best shade treatment for young L. gmelinii trees at 1–3 m was 65% NS, which indicates that this treatment can improve the photosynthetic capacity of young L. gmelinii trees. However, for the growth of smaller L. gmelinii seedlings, an environment with greater light intensity is more suitable.
{"title":"PHOTOSYNTHETIC CHARACTERISTICS OF LARIX GMELINII SEEDLINGS UNDER DIFFERENT LIGHT INTENSITY","authors":"Q.H. LUO, B. WANG, S.L. HAN, Y. LIU, X.M. MA, C. ZHANG, N. TIE","doi":"10.15666/aeer/2105_41174134","DOIUrl":"https://doi.org/10.15666/aeer/2105_41174134","url":null,"abstract":". To explore the effects of different light intensities on the physiological growth of Larix gmelinii seedlings, this study assessed three height grades of L. gmelinii seedlings (≤0.5–1, 0.5–1, and 1-3 m) under the following treatments: full light (control), 65% NS (natural sunshine), 35% NS, and 10% NS. After treatment, photosynthetic pigment content, light response curve, CO 2 response curve, Chlorophyll Fluorescence and Diurnal Variations in Photosynthesis were assessed. Shading increased the photosynthetic pigment contents of L. gmelinii seedlings and young trees and played a positive role in the adaptation of L. gmelinii seedlings and young trees to low-light environments. The maximum net photosynthetic rate, maximum carboxylation rate, maximum photoelectron transmission rate, and utilization efficiency of acetone phosphate of L. gmelinii (1–3 m) considerably increased under the 65% NS treatment, showed the strongest photoinhibition resistance and a high proportion of the open PSII reaction center. The best shade treatment for young L. gmelinii trees at 1–3 m was 65% NS, which indicates that this treatment can improve the photosynthetic capacity of young L. gmelinii trees. However, for the growth of smaller L. gmelinii seedlings, an environment with greater light intensity is more suitable.","PeriodicalId":7975,"journal":{"name":"Applied Ecology and Environmental Research","volume":"22 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":"136307755","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_42794294
Z.S. ALSAEDI, A.M. ALSWAT, R.A. ASHY, A.Y. SHAMI, M.A. MAJEED, L. BAZ, M.N. BAESHEN, R.S. JALAL
. Senna italica is indigenous to the desert and has important ecological and economic value in Kingdom of Saudi Arabia (KSA) . Plant microbial endophytes and rhizosphere contribute significantly to plant growth, development, health, and ecological function. The variety of endophytic bacteria and rhizosphere associated with S. italica is still unknown. In this work, the Illumina MiSeq sequencing of bacterial 16S rDNA was used to examine the structure of the bacterial communities associated with various tissues, including roots, leaves, and rhizosphere soils. A total of 840.242 sequences and 1142 operational taxonomic units (OTUs) were obtained. Cyanobacteria were the most abundant bacterial phylum in endophyte samples, followed by Actinobacteria ; and Actinobacteria and Proteobacteria were the most abundant phyla in rhizosphere soil samples. According to predictive metagenome research, endophytic bacteria and rhizosphere serve vital functional roles in S. italica's ability to tolerate abiotic stress. This conclusion could facilitate the study of the ecological functions of endophytic bacteria and rhizosphere and their interactions with S. italica to identify novel organisms that may have a role in abiotic stress resistance in the plant. Where there is still much about the endophytes and rhizosphere microbiome that may be discovered with more study.
{"title":"COMPARISON OF ENDOPHYTIC MICROBIOME COMMUNITY AND RHIZOSPHERE IN THE DESERT PLANT SENNA ITALICA","authors":"Z.S. ALSAEDI, A.M. ALSWAT, R.A. ASHY, A.Y. SHAMI, M.A. MAJEED, L. BAZ, M.N. BAESHEN, R.S. JALAL","doi":"10.15666/aeer/2105_42794294","DOIUrl":"https://doi.org/10.15666/aeer/2105_42794294","url":null,"abstract":". Senna italica is indigenous to the desert and has important ecological and economic value in Kingdom of Saudi Arabia (KSA) . Plant microbial endophytes and rhizosphere contribute significantly to plant growth, development, health, and ecological function. The variety of endophytic bacteria and rhizosphere associated with S. italica is still unknown. In this work, the Illumina MiSeq sequencing of bacterial 16S rDNA was used to examine the structure of the bacterial communities associated with various tissues, including roots, leaves, and rhizosphere soils. A total of 840.242 sequences and 1142 operational taxonomic units (OTUs) were obtained. Cyanobacteria were the most abundant bacterial phylum in endophyte samples, followed by Actinobacteria ; and Actinobacteria and Proteobacteria were the most abundant phyla in rhizosphere soil samples. According to predictive metagenome research, endophytic bacteria and rhizosphere serve vital functional roles in S. italica's ability to tolerate abiotic stress. This conclusion could facilitate the study of the ecological functions of endophytic bacteria and rhizosphere and their interactions with S. italica to identify novel organisms that may have a role in abiotic stress resistance in the plant. Where there is still much about the endophytes and rhizosphere microbiome that may be discovered with more study.","PeriodicalId":7975,"journal":{"name":"Applied Ecology and Environmental Research","volume":"5 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":"136307829","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：