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Homa J, Konończuk K, Frankowski R, Zgoła-Grześkowiak A, Ławniczak Ł, Chrzanowski Ł, Stachowiak W, Niemczak M. Cations impact the biodegradation of iodosulfuron-methyl herbicidal ionic liquids by fungi. ENVIRONMENTAL TECHNOLOGY 2024:1-14. [PMID: 38849972 DOI: 10.1080/09593330.2024.2357696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 05/12/2024] [Indexed: 06/09/2024]
Abstract
In the framework of this study, six fungal isolates which demonstrated a high capability for biodegrading iodosulphuron-methyl sodium as well as herbicidal ionic liquids based on this herbicide were isolated from different soil samples. The isolates were identified based on the ITS region, whereas biodegradation residues were determined based on LC-MS/MS. Depending on the isolate, the half-lives values of the biodegraded herbicide or herbicidal ionic liquid ranged significantly from just 1.25 days to more than 40 days. The research findings unveiled that the structure of cations is a central limiting factor affecting fungal growth and herbicide transformation in case of ionic liquids. The length of the alkyl chain has been identified as the primary driver of herbicide toxicity, emphasizing the importance of structural factors in herbicide design. In cases when dodecyl(2-hydroxyethyl)dimethyl cation was used, its biodegradation ranged from 0 to approx. 20% and the biodegradability of the iodosulfuron-methyl was notably limited for the majority of the studied isolates. This knowledge provides guidance for development and selection of herbicides with reduced environmental impact. This study highlights the ecological importance of soil fungi, their potential role in herbicide biodegradation, the influence of cations on fungal growth and herbicide transformation, and the structural factors governing herbicide toxicity. Further research in these areas may lead to more efficient and environmentally friendly approaches to herbicide management.
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Affiliation(s)
- Jan Homa
- Institute of Chemical Technology and Engineering, Poznań University of Technology, Poznań, Poland
| | - Kosma Konończuk
- Institute of Chemical Technology and Engineering, Poznań University of Technology, Poznań, Poland
| | - Robert Frankowski
- Institute of Chemistry and Technical Electrochemistry, Poznań University of Technology, Poznań, Poland
| | | | - Łukasz Ławniczak
- Institute of Chemical Technology and Engineering, Poznań University of Technology, Poznań, Poland
| | - Łukasz Chrzanowski
- Institute of Chemical Technology and Engineering, Poznań University of Technology, Poznań, Poland
| | - Witold Stachowiak
- Institute of Chemical Technology and Engineering, Poznań University of Technology, Poznań, Poland
| | - Michał Niemczak
- Institute of Chemical Technology and Engineering, Poznań University of Technology, Poznań, Poland
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2
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Kaur A, Kaur P, Kaur H. Investigating the impact of soil properties, application rates and environmental conditions on pyroxasulfone dissipation and its ecotoxicological effects on soil health in aridisols of Punjab. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:455. [PMID: 38625667 DOI: 10.1007/s10661-024-12605-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 04/04/2024] [Indexed: 04/17/2024]
Abstract
This study is to understand the fate and ecological consequences of pyroxasulfone in aridisols of Punjab, a detailed dissipation study in soil, its influence on soil enzymes, microbial count and succeeding crops was evaluated. Half-lives (DT50) increased with an increase in the application rate of pyroxasulfone. Dissipation of pyroxasulfone decreased with increase in organic matter content of soil and was slower in clay loam soil (DT50 12.50 to 24.89) followed by sandy loam (DT50 8.91 to 17.78) and loamy sand soil (DT50 6.45 to 14.89). Faster dissipation was observed under submerged conditions (DT50 2.9 to 20.99 days) than under field capacity conditions (DT50 6.45 to 24.89 days). Dissipation increased with increase in temperature with DT50 varying from 6.46 to 24.88, 4.87 to 22.89 and 2.97 to 20.99 days at 25 ± 2, 35 ± 2 and 45 ± 2 °C, respectively. Dissipation was slower under sterile conditions and about 23.87- to 33.74-fold increase in DT50 was observed under sterile conditions as compared to non-sterile conditions. The application of pyroxasulfone showed short-lived transitory effect on dehydrogenase, alkaline phosphatase and soil microbial activity while herbicide has non-significant effect on soil urease activity. PCA suggested that dehydrogenase and bacteria were most sensitive among enzymatic and microbial activities. In efficacy study, pyroxasulfone effectively controlled Phalaris minor germination, with higher efficacy in loamy sand soil (GR50 2.46 µg mL-1) as compared to clay loam soil (GR50 5.19 µg mL-1).
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Affiliation(s)
- Akshdeep Kaur
- Department of Chemistry, Punjab Agricultural University, Ludhiana, Punjab, India
| | - Pervinder Kaur
- Department of Agronomy, Punjab Agricultural University, Ludhiana, Punjab, India.
| | - Harshdeep Kaur
- Department of Agronomy, Punjab Agricultural University, Ludhiana, Punjab, India
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3
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Sondhia S, Pawar DV, Dasari S. Degradation dynamics, correlations, and residues of carfentrazone-ethyl, fenoxaprop-p-ethyl, and pinoxaden under the continuous application in the wheat field. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:8851-8865. [PMID: 36700995 DOI: 10.1007/s10653-023-01487-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 01/16/2023] [Indexed: 06/17/2023]
Abstract
Weed infestation is a major biotic limitations in wheat cultivation; thus, various herbicides are being applied to control these weeds. Therefore, this study was undertaken for two successive years to assess degradation behaviours, persistence and residue risk imposed by carfentrazone, fenoxaprop-p-ethyl and pinoxaden sprayed as post-emergence herbicides in the wheat crop for management of weeds. Soil and crop samples were collected at periodically at after two hour of herbicide application till harvest of wheat crop and analysed by a high-performance liquid chromatograph. Degradation of carfentrazone, pinoxaden and fenoxaprop-p-ethyl, in the soil of wheat field occurred rapid to moderately with the mean half-life 9.92, 11.7 and 11.8 days, respectively. Persistence was found to be dependent on the weather parameters as well as physicochemical properties of the soil and herbicides. Half-life of studied herbicides was found to be negatively correlated with persistence (R2 0.38, p = 0.05, n = 3) and vapour pressure (R2 0.99, p = 0.05, n = 3). Principal component analysis revealed that the first two Principal Components (PCs) had eigenvalues more than 1, and the first and second PCs contributed 77.4 and 22.6% in herbicide residues and different parameters variation, respectively. Terminal residues of carfentrazone, pinoxaden and fenoxaprop-p-ethyl in the wheat straw, grains and soil were found below the maximum residue limits. Owing to the moderate persistence under wheat field conditions, carfentrazone, pinoxaden and fenoxaprop-p-ethyl are supposed to be safe for control of weeds in wheat crop and hence, suspected risk on the human and environment or crop produce under evaluated doses is negligible.
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Affiliation(s)
- Shobha Sondhia
- ICAR-Directorate of Weed Research, Jabalpur, M.P, India.
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4
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Lei Q, Zhong J, Chen SF, Wu S, Huang Y, Guo P, Mishra S, Bhatt K, Chen S. Microbial degradation as a powerful weapon in the removal of sulfonylurea herbicides. ENVIRONMENTAL RESEARCH 2023; 235:116570. [PMID: 37423356 DOI: 10.1016/j.envres.2023.116570] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/25/2023] [Accepted: 07/05/2023] [Indexed: 07/11/2023]
Abstract
Sulfonylurea herbicides have been widely used worldwide and play a significant role in modern agricultural production. However, these herbicides have adverse biological effects that can damage the ecosystems and harm human health. As such, rapid and effective techniques that remove sulfonylurea residues from the environment are urgently required. Attempts have been made to remove sulfonylurea residues from environment using various techniques such as incineration, adsorption, photolysis, ozonation, and microbial degradation. Among them, biodegradation is regarded as a practical and environmentally responsible way to eliminate pesticide residues. Microbial strains such as Talaromyces flavus LZM1, Methylopila sp. SD-1, Ochrobactrum sp. ZWS16, Staphylococcus cohnii ZWS13, Enterobacter ludwigii sp. CE-1, Phlebia sp. 606, and Bacillus subtilis LXL-7 can almost completely degrade sulfonylureas. The degradation mechanism of the strains is such that sulfonylureas can be catalyzed by bridge hydrolysis to produce sulfonamides and heterocyclic compounds, which deactivate sulfonylureas. The molecular mechanisms associated with microbial degradation of sulfonylureas are relatively poorly studied, with hydrolase, oxidase, dehydrogenase and esterase currently known to play a pivotal role in the catabolic pathways of sulfonylureas. Till date, there are no reports specifically on the microbial degrading species and biochemical mechanisms of sulfonylureas. Hence, in this article, the degradation strains, metabolic pathways, and biochemical mechanisms of sulfonylurea biodegradation, along with its toxic effects on aquatic and terrestrial animals, are discussed in depth in order to provide new ideas for remediation of soil and sediments polluted by sulfonylurea herbicides.
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Affiliation(s)
- Qiqi Lei
- National Key Laboratory of Green Pesticide, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China
| | - Jianfeng Zhong
- National Key Laboratory of Green Pesticide, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China
| | - Shao-Fang Chen
- National Key Laboratory of Green Pesticide, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China
| | - Siyi Wu
- National Key Laboratory of Green Pesticide, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China
| | - Yaohua Huang
- National Key Laboratory of Green Pesticide, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China
| | - Peng Guo
- Zhongshan City Garden Management Center of Guangdong Province, Zhongshan, China
| | - Sandhya Mishra
- Environmental Technologies Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001, India
| | - Kalpana Bhatt
- Department of Food Science, Purdue University, West Lafayette, IN, USA.
| | - Shaohua Chen
- National Key Laboratory of Green Pesticide, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China.
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5
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Gao Y, Li S, Yuan G, Fang J, Shen G, Tian Z. Comparison of Biological and Genetic Characteristics between Two Most Common Broad-Leaved Weeds in Paddy Fields: Ammannia arenaria and A. multiflora (Lythraceae). BIOLOGY 2023; 12:936. [PMID: 37508367 PMCID: PMC10375975 DOI: 10.3390/biology12070936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/16/2023] [Accepted: 06/25/2023] [Indexed: 07/30/2023]
Abstract
Ammannia arenaria and A. multifloras, morphologically similar at the seedling stage, are the most common broad-leaved weeds in paddy fields. Our study showed that A. arenaria occupied more space than A. multifloras when competing with rice. However, A. multifloras germination has lower temperature adaptability. No difference in sensitivity to common herbicides between two Ammannia species was observed. Chloroplast (cp) genomes could be conducive to clarify their genetic relationship. The complete cp genome sequences of A. arenaria (158,401 bp) and A. multiflora (157,900 bp) were assembled for the first time. In A. arenaria, there were 91 simple sequence repeats, 115 long repeats, and 86 protein-encoding genes, one, sixteen, and thirty more than those in A. multiflora. Inverted repeats regions expansion and contraction and the phylogenetic tree based on cp genomes demonstrated the closely relationship between the two species. However, in A. arenaria, 20 single nucleotide polymorphisms in the CDS region were detected compared to A. multiflora, which can be used to distinguish the two species. Moreover, there was one unique gene, infA, only in A. arenaria. This study provides reliable molecular resources for future research focusing on the infrageneric taxa identification, phylogenetic resolution, population structure, and biodiversity of Ammannia species.
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Affiliation(s)
- Yuan Gao
- Eco-Environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Shenghui Li
- College of Agriculture, Anshun University, Anshun 561000, China
| | - Guohui Yuan
- Eco-Environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Jiapeng Fang
- Eco-Environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Guohui Shen
- Eco-Environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Zhihui Tian
- Eco-Environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
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6
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Sondhia S. A new multiresidue thin layer chromatography–ultraviolet detection method for the rapid determination of six herbicides residue applied as ready mix formulation for rice. SEPARATION SCIENCE PLUS 2023. [DOI: 10.1002/sscp.202300011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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7
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Ma Q, Tan H, Song J, Li M, Wang Z, Parales RE, Li L, Ruan Z. Effects of long-term exposure to the herbicide nicosulfuron on the bacterial community structure in a factory field. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 307:119477. [PMID: 35598816 DOI: 10.1016/j.envpol.2022.119477] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 04/27/2022] [Accepted: 05/11/2022] [Indexed: 06/15/2023]
Abstract
This study aims to investigate the effects of long-term nicosulfuron residue on an herbicide factory ecosystem. High-throughput sequencing was used to investigate the environmental microbial community structure and interactions. The results showed that the main contributor to the differences in the microbial community structure was the sample type, followed by oxygen content, pH and nicosulfuron residue concentration. Regardless of the presence or absence of nicosulfuron, soil, sludge, and sewage were dominated by groups of Bacteroidetes, Actinobacteria, and Proteobacteria. Long-term exposure to nicosulfuron increased alpha diversity of bacteria and archaea but significantly decreased the abundance of Bacteroidetes and Acidobateria compared to soils without nicosulfuron residue. A total of 81 possible nicosulfuron-degrading bacterial genera, e.g., Rhodococcus, Chryseobacterium, Thermomonas, Stenotrophomonas, and Bacillus, were isolated from the nicosulfuron factory environmental samples through culturomics. The co-occurrence network analysis indicated that the keystone taxa were Rhodococcus, Stenotrophomonas, Nitrospira, Terrimonas, and Nitrosomonadaceae_MND1. The strong ecological relationship between microorganisms with the same network module was related to anaerobic respiration, the carbon and nitrogen cycle, and the degradation of environmental contaminants. Synthetic community (SynCom), which provides an effective top-down approach for the critical degradation strains obtained, enhanced the degradation efficiency of nicosulfuron. The results indicated that Rhodococcus sp. was the key genus in the environment of long-term nicosulfuron exposure.
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Affiliation(s)
- Qingyun Ma
- CAAS-CIAT Joint Laboratory in Advanced Technologies for Sustainable Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, PR China; State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, PR China
| | - Hao Tan
- CAAS-CIAT Joint Laboratory in Advanced Technologies for Sustainable Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, PR China
| | - Jinlong Song
- Chinese Academy of Fishery Sciences, Beijing, 100141, PR China
| | - Miaomiao Li
- CAAS-CIAT Joint Laboratory in Advanced Technologies for Sustainable Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, PR China
| | - Zhiye Wang
- Key Laboratory of Microbial Resources Exploitation and Application of Gansu Province, Institute of Biology, Gansu Academy of Sciences, Lanzhou, 730000, PR China
| | - Rebecca E Parales
- Department of Microbiology and Molecular Genetics, College of Biological Sciences, University of California, Davis, CA, USA
| | - Lin Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, PR China
| | - Zhiyong Ruan
- CAAS-CIAT Joint Laboratory in Advanced Technologies for Sustainable Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, PR China; College of Resources and Environment, Tibet Agricultural and Animal Husbandry University, Linzhi, 860000, PR China; College of Life Sciences, Yantai University, Yantai, 264005, PR China.
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8
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Ge L, Wang X, Hou JW, Ni ZJ, Liu WR, Bao J, Wei YL. Study on degradation characteristics of imazamox by Streptomycetaceae. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2022; 57:470-478. [PMID: 35438041 DOI: 10.1080/03601234.2022.2064673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The residues of imazamox (IMX) will cause phytotoxicity to subsequent crops after long-term use, and will also pollute the soil and its surrounding environment. This study isolates and identifies two strains of Streptomycetaceae JX02 and JX06 that can effectively degrade IMX. Use response surface method Box-Behnken design to optimize physicochemical parameters. The optimal degradation conditions of strains JX02 and JX06 are obtained and verified: IMX concentration is 150 mg L-1, the initial dosage is 9.9%, 9.1% (OD600 = 0.1), the temperature is 26.4 and 27.5 °C, and pH value is 7.0 and 7.7, respectively. The degradation rates of 150 mg L-1 IMX detected by HPLC within 4 d were 99 and 94%, respectively. After adding strains JX02 and JX06, the half-life of IMX in the soil is shortened to 11 d and 13 d, indicating that Streptomycetaceae had a positive effect on the remediation of soil. It is expected to provide scientific information for the rational use, environmental safety evaluation of IMX, and provide a basis for future research and development of microbial agents.
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Affiliation(s)
- Ling Ge
- School of Environmental and Chemical Engineering, Shenyang University of Technology, Shenyang, China
| | - Xin Wang
- School of Environmental and Chemical Engineering, Shenyang University of Technology, Shenyang, China
| | - Jia-Wen Hou
- School of Environmental and Chemical Engineering, Shenyang University of Technology, Shenyang, China
| | - Zi-Jun Ni
- Shenyang Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Wen-Rui Liu
- School of Environmental and Chemical Engineering, Shenyang University of Technology, Shenyang, China
| | - Jia Bao
- School of Environmental and Chemical Engineering, Shenyang University of Technology, Shenyang, China
| | - Yu-Lian Wei
- Shenyang Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
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9
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Medo J, Hricáková N, Maková J, Medová J, Omelka R, Javoreková S. Effects of sulfonylurea herbicides chlorsulfuron and sulfosulfuron on enzymatic activities and microbial communities in two agricultural soils. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:41265-41278. [PMID: 32681330 DOI: 10.1007/s11356-020-10063-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 07/07/2020] [Indexed: 06/11/2023]
Abstract
Sulfonylurea herbicides are widely used for weed control in agriculture, and they are suspected to alter microbial communities and activities in the soil. This study investigates the impact of two sulfonylurea herbicides chlorsulfuron and sulfosulfuron on microbial community and activity in two different soils taken from two sites in west part of the Slovak Republic. The soil from the Malanta site was silt-loam luvisol with pH(H2O) 5.78 while the soil from the Stefanov site was sandy-loam regosol with pH(H2O) 8.25. These soils were not treated by sulfonylurea herbicides at least for 2 years prior to the study. In laboratory assay, the herbicides were applied to soil in their maximal recommended doses 26 and 25 g per hectare of chlorsulfuron and sulfosulfuron, respectively. Their effect was evaluated on the 3rd, 7th, 14th, 28th, 56th, and 112th day after application to soil. Illumina high-throughput amplicon sequencing of the 16S rRNA gene and ITS region was used to monitor changes on prokaryotic and fungal community composition. Enzymatic activity was evaluated using 11 substrates. Physiological profile of microbial community was analyzed using Biolog© ecoplates. Significant changes in enzymatic activity caused by the application of herbicides were found during the first 28 days. The application of herbicides altered the activity of cellobiohydrolase, arylsulphatase, dehydrogenase, phosphatase, and FDA hydrolase. Chlorsulfuron caused a more varying response of enzymatic activity than sulfosulfuron, and observed changes were not the same for both soils. In Malanta soil, chlorsulfuron decreased dehydrogenase activity while it was increased in the Stefanov soil. Phosphatase activity was decreased in both soils on 7th and 14th day. There were only minor changes in prokaryotic or fungal community or physiological profiles regarding pesticide application. Differences between soils and incubation time explained most of the variability in these parameters. Diversity indices, physiological parameters, and enzymatic activity decreased over time. The results have shown that chlorsulfuron and sulfosulfuron can affect the function and activity of the soil microbial community without significant change in its composition.
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Affiliation(s)
- Juraj Medo
- Department of Microbiology, Slovak University of Agriculture in Nitra, Tr. A Hlinku 2, 949 76, Nitra, Slovakia.
| | - Nikola Hricáková
- Department of Microbiology, Slovak University of Agriculture in Nitra, Tr. A Hlinku 2, 949 76, Nitra, Slovakia
| | - Jana Maková
- Department of Microbiology, Slovak University of Agriculture in Nitra, Tr. A Hlinku 2, 949 76, Nitra, Slovakia
| | - Janka Medová
- Department of Mathematics, Constantine the Philosopher University in Nitra, Tr. A Hlinku 1, 949 74, Nitra, Slovakia
| | - Radoslav Omelka
- Department of Botany and Genetics, Constantine the Philosopher University in Nitra, Nábrežie mládeže 91, 949 74, Nitra, Slovakia
| | - Soňa Javoreková
- Department of Microbiology, Slovak University of Agriculture in Nitra, Tr. A Hlinku 2, 949 76, Nitra, Slovakia
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10
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Jambon I, Thijs S, Torres-Farradá G, Rineau F, Weyens N, Carleer R, Samyn P, Vangronsveld J. Fenton-Mediated Biodegradation of Chlorendic Acid - A Highly Chlorinated Organic Pollutant - By Fungi Isolated From a Polluted Site. Front Microbiol 2019; 10:1892. [PMID: 31474967 PMCID: PMC6702520 DOI: 10.3389/fmicb.2019.01892] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 07/31/2019] [Indexed: 11/13/2022] Open
Abstract
Chlorendic acid is a recalcitrant, highly chlorinated organic pollutant for which no microbial degrader has yet been identified. To address this knowledge gap, fungi were isolated from bulk soil, rhizosphere, and roots of the common bent (Agrostis capillaris) and the hybrid poplar [Populus deltoides × (Populus trichocarpa × P. deltoides) cv. Grimminge], both of which grow on a chlorendic acid polluted site in Belgium. Isolates were taxonomically identified and phenotypically screened for chlorendic acid degradation. Several fungal isolates could degrade chlorendic acid in liquid media up to 45%. The chlorendic acid degrading fungal isolates produced higher levels of hydroxyl radicals when exposed to the pollutant when compared to non-exposed controls, suggesting that the oxidative degradation of chlorendic acid occurs through production of Fenton-mediated hydroxyl radicals. In addition, the isolated Ascomycete Penicillium sp. 1D-2a degraded 58% of the original chlorendic acid concentration in the soil after 28 days. This study demonstrates that the presence of fungi in a chlorendic acid polluted soil can degrade this highly chlorinated organic pollutant. These results indicate that recalcitrant, seemingly non-biologically degradable organic pollutants, such as chlorendic acid, can be remediated by using bioremediation, which opens new perspectives for in situ bioremediation.
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Affiliation(s)
- Inge Jambon
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Sofie Thijs
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Giselle Torres-Farradá
- Department of Microbiology and Virology, Faculty of Biology, University of Havana, La Habana, Cuba
| | - François Rineau
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Nele Weyens
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Robert Carleer
- Institute for Materials Research, Hasselt University, Diepenbeek, Belgium
| | - Pieter Samyn
- Institute for Materials Research, Hasselt University, Diepenbeek, Belgium
| | - Jaco Vangronsveld
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
- Department of Plant Physiology, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Lublin, Poland
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11
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Srivastava A, Suyal A, Srivastava PC. Persistence Behavior of Penoxsulam Herbicide in Two Different Soils. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2017; 99:470-474. [PMID: 28875291 DOI: 10.1007/s00128-017-2171-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 08/28/2017] [Indexed: 06/07/2023]
Abstract
Penoxsulam, a new post emergence herbicide is suspected to be toxic to aquatic organisms, crop plants and also to soil microbial community even at low concentrations. Laboratory studies were therefore performed to examine the persistence of, penoxsulam in two different soils at two application rates (0.5 and 1.0 µg g-1). The study revealed that the dissipation followed the first order kinetics with a half life of 3.48 and 3.57 days at 0.5 µg g-1 and 4.1 and 4.17 days at 1.0 µg g-1 fortification rate. Both microbial- and photo-degradation seemed to play a vital role in the dissipation of penoxsulam. The results of LC MS/MS revealed that one minor and five major metabolites were formed during the degradation process of the herbicide and the cleavage of sulfonamide bridge served as the major metabolic pathway.
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Affiliation(s)
- Anjana Srivastava
- Department of Chemistry, College of Basic Sciences and Humanities, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, US Nagar, Uttarakhand, 263 145, India.
| | - Archana Suyal
- Department of Chemistry, College of Basic Sciences and Humanities, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, US Nagar, Uttarakhand, 263 145, India
| | - Prakash C Srivastava
- Department of Soil Science, College of Agriculture, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, US Nagar, Uttarakhand, 263 145, India
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Zhao W, Wang C, Xu L, Zhao C, Liang H, Qiu L. Biodegradation of nicosulfuron by a novel Alcaligenes faecalis strain ZWS11. J Environ Sci (China) 2015; 35:151-162. [PMID: 26354704 DOI: 10.1016/j.jes.2015.03.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 03/19/2015] [Accepted: 03/20/2015] [Indexed: 06/05/2023]
Abstract
A bacterial strain ZWS11 was isolated from sulfonylurea herbicide-contaminated farmland soil and identified as a potential nicosulfuron-degrading bacterium. Based on morphological and physicochemical characterization of the bacterium and phylogenetic analysis of the 16S rRNA sequence, strain ZWS11 was identified as Alcaligenes faecalis. The effects of the initial concentration of nicosulfuron, inoculation volume, and medium pH on degradation of nicosulfuron were investigated. Strain ZWS11 could degrade 80.56% of the initial nicosulfuron supplemented at 500.0mg/L under the conditions of pH7.0, 180r/min and 30°C after incubation for 6days. Strain ZWS11 was also capable of degrading rimsulfuron, tribenuron-methyl and thifensulfuron-methyl. Four metabolites from biodegradation of nicosulfuron were identified, which were 2-aminosulfonyl-N, N-dimethylnicotinamide (M1), 4, 6-dihydroxypyrimidine (M2), 2-amino-4, 6-dimethoxypyrimidine (M3) and 2-(1-(4,6-dimethoxy-pyrimidin-2-yl)-ureido)-N,N-dimethyl-nicotinamide (M4). Among the metabolites detected, M2 was reported for the first time. Possible biodegradation pathways of nicosulfuron by strain ZWS11 were proposed. The degradation proceeded mainly via cleavage of the sulfonylurea bridge, O-dealkylation, and contraction of the sulfonylurea bridge by elimination of a sulfur dioxide group. The results provide valuable information for degradation of nicosulfuron in contaminated environments.
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Affiliation(s)
- Weisong Zhao
- College of Science, China Agricultural University, Beijing 100193, China.
| | - Chen Wang
- College of Science, China Agricultural University, Beijing 100193, China
| | - Li Xu
- College of Science, China Agricultural University, Beijing 100193, China
| | - Chunqing Zhao
- College of Science, China Agricultural University, Beijing 100193, China
| | - Hongwu Liang
- College of Science, China Agricultural University, Beijing 100193, China
| | - Lihong Qiu
- College of Science, China Agricultural University, Beijing 100193, China.
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Wang B, Kong D, Lu J, Zhou Q. Transformation of sulfonylurea herbicides in simulated drinking water treatment processes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:3847-3855. [PMID: 25269843 DOI: 10.1007/s11356-014-3642-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Accepted: 09/22/2014] [Indexed: 06/03/2023]
Abstract
Sulfonylurea herbicides (SUs) were detected in natural waters and could be potentially exposed to human beings via portable use. Thus, the removal of five representative SUs in simulated water treatment processes including coagulation, activated carbon adsorption, and chlorination disinfection was systematically investigated. Results showed that coagulation had little effect on the removal of the herbicides with the average removal less than 10 %. Powder-activated carbon adsorption was apparently more effective with removal rates of 50 ~ 70 %. SUs were also partially removed in chlorination process. A complete removal was achieved when the three treatments were performed in series. However, it was found that parts of the SUs were transformed into certain stable products with triazine/pyrimidine structures which might be of potential health risks in chlorination process. Thus, current drinking water treatment processes are not likely to provide sufficient protection for human population from exposure to SUs.
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Affiliation(s)
- Binnan Wang
- Department of Environmental Science and Engineering, Nanjing Agricultural University, Nanjing, 210095, China
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