Prospects for application of microorganisms in bioremediation of soils contaminated with pesticides.

IF 1.4 4区 农林科学 Q4 ENVIRONMENTAL SCIENCES Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes Pub Date : 2024-01-01 Epub Date: 2023-12-07 DOI:10.1080/03601234.2023.2281197
Lyudmila A Belovezhets, Aleksey A Levchuk, Ekaterina O Pristavka
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Abstract

The contamination of soil with residual amounts of pesticides remains an urgent challenge for human community. The most efficient approach to address this challenge is the direct microbial degradation of a pesticide in agricultural lands. To this end, the selected microorganisms, which quickly and completely utilize pesticides, are employed. In the present work, two herbicides belonging to different classes of chemical compounds, that is, imazamox and chlorsulfuron were used. The screening of promising microorganisms was carried out among different strains of bacteria and fungi in a liquid mineral medium containing a pesticide as the only source of carbon. It was found that the most active microorganisms were capable of utilizing up to 90% of the active substance for a short time. The dynamics of pesticides degradation indicated that the maximum destruction of the studied substances occurred during the first two weeks of cultivation. Further, the rate of degradation dramatically dropped or stopped at all. An increase in the concentration of pesticides in the cultivation medium almost completely suppressed their degradation. It is interesting that the bacteria were more suitable for the degradation of imazamox, while the fungi rendered the destruction of chlorsulfuron.

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微生物在农药污染土壤生物修复中的应用前景。
农药残留对土壤的污染仍然是人类社会面临的紧迫挑战。应对这一挑战的最有效方法是在农业用地上直接利用微生物降解农药。为此,选择了能够快速、完全利用农药的微生物。在本工作中,使用了两种属于不同类别化合物的除草剂,即吡唑莫和氯磺隆。在含农药作为唯一碳源的液体矿物培养基中,对不同菌株的细菌和真菌进行了有希望的微生物筛选。研究发现,最活跃的微生物能够在短时间内利用高达90%的活性物质。农药降解动态表明,所研究物质的最大破坏发生在栽培的前两周。此外,退化的速度急剧下降或完全停止。培养基中农药浓度的增加几乎完全抑制了它们的降解。有趣的是,细菌更适合于降解伊马唑啉,而真菌则对氯磺隆进行破坏。
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来源期刊
CiteScore
4.00
自引率
5.00%
发文量
87
审稿时长
1 months
期刊介绍: 12 issues per year Abstracted/indexed in: Agricola; Analytical Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; BioSciences Information Service of Biological Abstracts (BIOSIS); CAB Abstracts; CAB AGBiotech News and Information; CAB Irrigation & Drainage Abstracts; CAB Soils & Fertilizers Abstracts; Chemical Abstracts Service Plus; CSA Aluminum Industry Abstracts; CSA ANTE: Abstracts in New Technology and Engineering; CSA ASFA 3 Aquatic Pollution and Environmental Quality; CSA ASSIA: Applied Social Sciences Index & Abstracts; CSA Ecology Abstracts; CSA Entomology Abstracts; CSA Environmental Engineering Abstracts; CSA Health & Safety Science Abstracts; CSA Pollution Abstracts; CSA Toxicology Abstracts; CSA Water Resource Abstracts; EBSCOhost Online Research Databases; Elsevier BIOBASE/Current Awareness in Biological Sciences; Elsevier Engineering Information: EMBASE/Excerpta Medica/ Engineering Index/COMPENDEX PLUS; Environment Abstracts; Environmental Knowledge; Food Science and Technology Abstracts; Geo Abstracts; Geobase; Food Science; Index Medicus/ MEDLINE; INIST-Pascal/ CNRS; NIOSHTIC; ISI BIOSIS Previews; Pesticides; Food Contaminants and Agricultural Wastes: Analytical Abstracts; Pollution Abstracts; PubSCIENCE; Reference Update; Research Alert; Science Citation Index Expanded (SCIE); and Water Resources Abstracts.
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