Environmental and Experimental Biology最新文献_第2页

Association between Spirodela polyrrhiza and blue green algae in aquatic habitats and in vitro conditions in relation to metabolite concentrations under monoculture and co-culture 在水生生境和体外条件下，根据单培和共培条件下的代谢物浓度，分析甘蓝螺旋藻与蓝绿藻之间的关系

Environmental and Experimental Biology Pub Date : 2023-07-28 DOI: 10.22364/eeb.21.07

Santanu Gupta, Sudipta Kumar Sil

引用次数: 0

Assessing the accuracy of population estimation methods for vulture populations: a case study from the Mudumalai Tiger Reserve, Tamil Nadu, India 评估秃鹫种群数量估算方法的准确性：印度泰米尔纳德邦穆杜马莱老虎保护区的案例研究

Environmental and Experimental Biology Pub Date : 2023-07-28 DOI: 10.22364/eeb.21.06

S. Manigandan, H. Byju, P. Kannan

引用次数: 0

Abstracts of the 81st Scientific Conference of the University of Latvia 拉脱维亚大学第81届科学会议摘要

Environmental and Experimental Biology Pub Date : 2023-04-21 DOI: 10.22364/eeb.21.05

Valdis Pilāts

引用次数: 0

Changes in nutrient and heavy metal content after vermicomposting of water hyacinth-based spent mushroom substrate 水葫芦废蘑菇基质蚯蚓堆肥后养分及重金属含量的变化

Environmental and Experimental Biology Pub Date : 2023-04-21 DOI: 10.22364/eeb.21.01

S. Mukhopadhyay

{"title":"Changes in nutrient and heavy metal content after vermicomposting of water hyacinth-based spent mushroom substrate","authors":"S. Mukhopadhyay","doi":"10.22364/eeb.21.01","DOIUrl":"https://doi.org/10.22364/eeb.21.01","url":null,"abstract":"The spent biomass of water hyacinth (Eichhornia crassipes) after oyster mushroom cultivation is not much suitable for application as soil amendment. As a means to avoid environmental pollution and to decrease waste to landfill, the spent biomass was primarily composted with cow dung and then feed to red wiggler earthworm (Eisenia fetida) to transform it into vermicompost. The produced vermicompost showed significant reduction in salt concentration, electrical conductivity, available K concentration, C/N ratio and increase in pH, available N and P. The representative heavy metals (Fe, Cu, Zn, Pb and Cd) detected in the spent biomass of water hyacinth were derived from the initial plant biomass. Among these metals, concentration of Fe increased and that of Zn decreased significantly in the vermicompost, while the other metals did not show significant change. When applied as amendment to control soil for growth of radish plants, the vermicompost treatment resulted in significantly higher shoot and root biomass. Also, the amendment decreased the bioavailability of metals (especially Cd) and their accumulation in radish plants. The metal concentrations in the vermicompost and in the radish plants were found to fall within the permissible limits for compost and the normal range present in plants, respectively, indicating the suitability of the vermicompost for use as organic fertilizer. Utilization of the water hyacinth as substrate for oyster mushroom cultivation and recycling the spent mushroom substrate through vermicomposting could therefore provide food and fertilizer with no waste to landfill, changing the status of the invasive aquatic weed from a prolific pest to a potentially usable product.","PeriodicalId":53270,"journal":{"name":"Environmental and Experimental Biology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47145641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Osmotic stress induced alterations in fatty acid composition and other metabolic responses in seedlings of Sinapis alba 渗透胁迫诱导白刺幼苗脂肪酸组成及其他代谢反应的改变

Environmental and Experimental Biology Pub Date : 2023-04-21 DOI: 10.22364/eeb.21.02

S. Mitra, A. Begum

{"title":"Osmotic stress induced alterations in fatty acid composition and other metabolic responses in seedlings of Sinapis alba","authors":"S. Mitra, A. Begum","doi":"10.22364/eeb.21.02","DOIUrl":"https://doi.org/10.22364/eeb.21.02","url":null,"abstract":"Sinapis alba L. (white mustard), an annual member of Brassicaceae, is an important oilseed crop with significant agronomic traits including tolerance to abiotic stress. The present study was aimed to assess the changes in biochemical attributes of S. alba, mainly the composition of lipids and fatty acids, in response to osmotic stress. Seedlings were subjected to stress condition by growing them on media supplemented with three different concentrations of polyethylene glycol (PEG 6000) solutions, respectively with ‑0.04, ‑0.16 and ‑0.64 MPa osmotic potential. Compatible solute content, lipid content, and lipid peroxidation of the seedlings were measured. Total fatty acid composition was analysed by gas chromatography mass spectrometry. Overall negative impact of PEG-mediated osmotic stress was apparent from seedling morphology. Total lipid content decreased in stressed plants together with increased level of triacylglycerol. Increase of lipid peroxidation in stressed condition indicated suppression of membrane integrity. The key outcome was the significant increase of unsaturation level of fatty acids due to higher accumulation of linoleic acid, α-linolenic acid and erucic acid in the seedlings exposed to higher osmotic stress. The results indicate that, in white mustard, the biochemical changes induced by osmotic stress mainly depend on changes in lipid composition and fatty acid unsaturation level, which maintain membrane stability during the early stage of seedling development.","PeriodicalId":53270,"journal":{"name":"Environmental and Experimental Biology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44073792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Study on photoperiodic modulation of the female fertility of Drosophila biarmipes 双臂果蝇雌性生殖力的光周期调节研究

Environmental and Experimental Biology Pub Date : 2023-04-21 DOI: 10.22364/eeb.21.04

Ahmed Malik Shamim, Zarin Sana Sayed

{"title":"Study on photoperiodic modulation of the female fertility of Drosophila biarmipes","authors":"Ahmed Malik Shamim, Zarin Sana Sayed","doi":"10.22364/eeb.21.04","DOIUrl":"https://doi.org/10.22364/eeb.21.04","url":null,"abstract":"Various attributes of light, including the intensity, spectral composition and duration of the photophase, have been documented to have remarkable influence on all aspects of behaviour and physiology of eukaryotic experimental models. This hypothesis was investigated in the present study wherein the effects of photoperiod varying from 6 to 18 h of 24‑h light-dark (LD) cycles was examined on the lifetime fertility (i.e., the viable F1 progeny) of females of the Indian fruit fly, Drosophila biarmipes. The flies were subjected to six types of 24‑h LD cycles (light at 150 lux and dark at 0 lux in all LD cycles) in which the photoperiod varied from extremely short (6 h) to extremely long (18 h) duration. The female fertility was the highest in photoperiods of 10, 12 and 14 h, moderate in 8 and 16 h and the lowest in 6 and 18 h. These results indicate that the performance of the circadian system is at its optimum when it is maintained in zeitgeber cycles wherein the photoperiod is close to that of the natural day of the tropical or sub-tropical region from where the given species or strain originated. This study has great implication in predicting the insect abundance at a particular season of the year when the photoperiod is conducible for optimum reproduction. Such premonition should help the local administrative bodies to take appropriate control measures against the given insect pest and vector insects.","PeriodicalId":53270,"journal":{"name":"Environmental and Experimental Biology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43257940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morphometric and molecular sequencing evidence for the identification of Artemia franciscana (Kellogg, 1906) in Southern India 印度南部Artemia franciscana (Kellogg, 1906)鉴定的形态计量学和分子测序证据

Environmental and Experimental Biology Pub Date : 2023-04-21 DOI: 10.22364/eeb.21.03

Y. Biju, S. Krishnakumar, M. Krishnaveni

引用次数: 0

Impact of habitat fragmentation on genetic structure of Capparis spinosa populations revealed by ISSR markers 生境破碎化对柽柳居群遗传结构的影响

Environmental and Experimental Biology Pub Date : 2023-01-11 DOI: 10.22364/eeb.20.20

H. Nosrati, Hanife Akbarian

{"title":"Impact of habitat fragmentation on genetic structure of Capparis spinosa populations revealed by ISSR markers","authors":"H. Nosrati, Hanife Akbarian","doi":"10.22364/eeb.20.20","DOIUrl":"https://doi.org/10.22364/eeb.20.20","url":null,"abstract":"The results from empirical studies on the impact of habitat fragmentation on genetic variation of populations are controversial, ranging from negative to positive effects. This contradiction has been attributed to either species characteristics (e.g. plant life history) or environmental components (e.g. the scale of habitat fragmentation). To examine the role of DNA marker types on these effects, we carried out a comparative study of seven populations of Capparis spinosa L. (caper, Capparaceae) using ISSR markers and compared these results with those obtained previously using RAPD markers. Although both ISSR and RAPD markers showed high consistency and indicated that genetic variation in populations was not correlated with either geographical distance (P ≥ 0.47, P ≥ 0.83; for ISSR and RAPD, respectively) or altitude (P ≥ 0.535, P ≥ 0.419; for ISSR and RAPD respectively), the levels of variation were related to population size. ISSR analysis showed that genetic variation did not significantly differ between small and large populations (P ≥ 0.4149), while RAPD analysis indicated significant effect of population size on this variation (P ≤ 0.002). This may suggest that, in addition to species and environmental components, types of DNA markers used for assessing population genetic variations affect results on the impact of fragmentation on genetic variation.","PeriodicalId":53270,"journal":{"name":"Environmental and Experimental Biology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47385750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exogenous application of salicylic acid mitigates salt stress in rice seedlings by regulating plant water status and preventing oxidative damage 外源水杨酸通过调节植物水分状况和防止氧化损伤来缓解水稻幼苗的盐胁迫

Environmental and Experimental Biology Pub Date : 2023-01-11 DOI: 10.22364/eeb.20.18

Ravina Pai, Prabhat Sharma

引用次数: 2

Expression of highly conserved developmental phase change regulating miR156 and miR172 microRNAs in silver birch using real-time PCR and high-throughput sequencing methodologies 应用实时PCR和高通量测序方法在白桦中表达高度保守的发育相变调控miR156和miR172微小RNA

Environmental and Experimental Biology Pub Date : 2023-01-11 DOI: 10.22364/eeb.20.21

Baiba Krivmane, I. Samsone, D. Ruņģis

引用次数: 0