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Zhong J, Wu S, Chen WJ, Huang Y, Lei Q, Mishra S, Bhatt P, Chen S. Current insights into the microbial degradation of nicosulfuron: Strains, metabolic pathways, and molecular mechanisms. CHEMOSPHERE 2023; 326:138390. [PMID: 36935058 DOI: 10.1016/j.chemosphere.2023.138390] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 02/02/2023] [Accepted: 03/11/2023] [Indexed: 06/18/2023]
Abstract
Nicosulfuron is among the sulfonylurea herbicides that are widely used to control annual and perennial grass weeds in cornfields. However, nicosulfuron residues in the environment are likely to cause long-lasting harmful environmental and biological effects. Nicosulfuron degrades via photo-degradation, chemical hydrolysis, and microbial degradation. The latter is crucial for pesticide degradation and has become an essential strategy to remove nicosulfuron residues from the environment. Most previous studies have focused on the screening, degradation characteristics, and degradation pathways of biodegrader microorganisms. The isolated nicosulfuron-degrading strains include Bacillus, Pseudomonas, Klebsiella, Alcaligenes, Rhodopseudomonas, Ochrobactrum, Micrococcus, Serratia, Penicillium, Aspergillus, among others, all of which have good degradation efficiency. Two main intermediates, 2-amino-4,6-dimethoxypyrimidine (ADMP) and 2-aminosulfonyl-N,N-dimethylnicotinamide (ASDM), are produced during microbial degradation and are derived from the C-N, C-S, and S-N bond breaks on the sulfonylurea bridge, covering almost every bacterial degradation pathway. In addition, enzymes related to the degradation of nicosulfuron have been identified successively, including the manganese ABC transporter (hydrolase), Flavin-containing monooxygenase (oxidase), and E3 (esterase). Further in-depth studies based on molecular biology and genetics are needed to elaborate on their role in the evolution of novel catabolic pathways and the microbial degradation of nicosulfuron. To date, few reviews have focused on the microbial degradation and degradation mechanisms of nicosulfuron. This review summarizes recent advances in nicosulfuron degradation and comprehensively discusses the potential of nicosulfuron-degrading microorganisms for bioremediating contaminated environments, providing a reference for further research development on nicosulfuron biodegradation in the future.
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Affiliation(s)
- Jianfeng Zhong
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, 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
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, 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
| | - Wen-Juan Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, 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
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, 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
| | - Qiqi Lei
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, 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
| | - Sandhya Mishra
- Environmental Technologies Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001, India
| | - Pankaj Bhatt
- Department of Agricultural & Biological Engineering, Purdue University, West Lafayette, 47906, USA.
| | - Shaohua Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, 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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Transcriptomic response of Pseudomonas nicosulfuronedens LAM1902 to the sulfonylurea herbicide nicosulfuron. Sci Rep 2022; 12:13656. [PMID: 35953636 PMCID: PMC9372043 DOI: 10.1038/s41598-022-17982-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 08/03/2022] [Indexed: 12/13/2022] Open
Abstract
The overuse of the herbicide nicosulfuron has become a global environmental concern. As a potential bioremediation technology, the microbial degradation of nicosulfuron shows much promise; however, the mechanism by which microorganisms respond to nicosulfuron exposure requires further study. An isolated soil-borne bacteria Pseudomonas nicosulfuronedens LAM1902 displaying nicosulfuron, chlorimuron-ethyl, and cinosulfuron degradabilities in the presence of glucose, was used to determine the transcriptional responses to nicosulfuron exposure. RNA-Seq results indicated that 1102 differentially expressed genes (DEGs) were up-regulated and 702 down-regulated under nicosulfuron stress. DEGs were significantly enriched in “ABC transporters”, “sulfur metabolism”, and “ribosome” pathways (p ≤ 0.05). Several pathways (glycolysis and pentose phosphate pathways, a two-component regulation system, as well as in bacterial chemotaxis metabolisms) were affected by nicosulfuron exposure. Surprisingly, nicosulfuron exposure showed positive effects on the production of oxalic acid that is synthesized by genes encoding glycolate oxidase through the glyoxylate cycle pathway. The results suggest that P. nicosulfuronedens LAM1902 adopt acid metabolites production strategies in response to nicosulfuron, with concomitant nicosulfuron degradation. Data indicates that glucose metabolism is required during the degradation and adaptation of strain LAM1902 to nicosulfuron stress. The present studies provide a glimpse at the molecular response of microorganisms to sulfonylurea pesticide toxicity and a potential framework for future mechanistic studies.
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Anwar S, Wahla AQ, Ali T, Khaliq S, Imran A, Tawab A, Afzal M, Iqbal S. Biodegradation and Subsequent Toxicity Reduction of Co-contaminants Tribenuron Methyl and Metsulfuron Methyl by a Bacterial Consortium B2R. ACS OMEGA 2022; 7:19816-19827. [PMID: 35721981 PMCID: PMC9202245 DOI: 10.1021/acsomega.2c01583] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 05/11/2022] [Indexed: 06/15/2023]
Abstract
AllyMax is a widely used herbicide formulation in wheat-rice cropping areas of the world. The residues of its active ingredients, tribenuron methyl (TBM) and metsulfuron methyl (MET), persist in soil and water as co-contaminants, and cause serious threats to nontarget organisms. This study was performed to assess the potential of a bacterial consortium for the degradation and detoxification of TBM and MET individually and as co-contaminants. A bacterial consortium (B2R), comprising Bacillus cereus SU-1, Bacillus velezensis OS-2, and Rhodococcus rhodochrous AQ1, capable of degrading TBM and MET in liquid cultures was developed. Biodegradation of TBM and MET was optimized using the Taguchi design of experiment. Optimum degradation of both TBM and MET was obtained at pH 7 and 37 °C. Regarding media composition, optimum degradation of TBM and MET was obtained in minimal salt medium (MSM) supplemented with glucose, and MSM without glucose, respectively. The consortium simultaneously degraded TBM and MET (94.8 and 80.4%, respectively) in cultures containing the formulation AllyMax, where TBM and MET existed as co-contaminants at 2.5 mg/L each. Mass spectrometry analysis confirmed that during biodegradation, TBM and MET were metabolized into simpler compounds. Onion (Allium cepa) root inhibition and Comet assays revealed that the bacterial consortium B2R detoxified TBM and MET separately and as co-contaminants. The consortium B2R can potentially be used for the remediation of soil and water co-contaminated with TBM and MET.
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Affiliation(s)
- Samina Anwar
- Soil
& Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College,
Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad 38000, Pakistan
| | - Abdul Qadeer Wahla
- Soil
& Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College,
Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad 38000, Pakistan
| | - Tayyaba Ali
- Department
of Zoology, Government College University, Allama Iqbal Road, Faisalabad 38000, Pakistan
| | - Shazia Khaliq
- Industrial
Biotechnology Division, National Institute
for Biotechnology and Genetic Engineering College, Pakistan Institute
of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad 38000, Pakistan
| | - Asma Imran
- Soil
& Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College,
Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad 38000, Pakistan
| | - Abdul Tawab
- Health
Biotechnology Division, National Institute
for Biotechnology and Genetic Engineering College, Pakistan Institute
of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad 38000, Pakistan
| | - Muhammad Afzal
- Soil
& Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College,
Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad 38000, Pakistan
| | - Samina Iqbal
- Soil
& Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College,
Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad 38000, Pakistan
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Zhang C, Chen L, Si H, Gao W, Liu P, Zhang J. Study on the characteristics and mechanisms of nicosulfuron biodegradation by Bacillus velezensis CF57. J Basic Microbiol 2020; 60:649-658. [PMID: 32378242 DOI: 10.1002/jobm.202000039] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 04/06/2020] [Accepted: 04/15/2020] [Indexed: 11/08/2022]
Abstract
Nicosulfuron is one of the main sulfonylurea herbicides that have been widely used to protect maize crops. A total of 10 nicosulfuron-degrading strains were isolated from the intestine tract of earthworm Eisenia foetida. Among them, Bacillus velezensis CF57 with the highest degradation efficiency was selected and studied in detail. The degradation characteristics of CF57 showed that it was able to effectively degrade nicosulfuron in a wide range of temperature, pH, and a low inoculation amount, and the response surface analysis revealed that the optimum degradation conditions were 30.8 °C, pH 6.31, and inoculation amount 3.04%. Meanwhile, CF57 could degrade high-concentration nicosulfuron efficiently and posed a broad degradation spectrum of other sulfonylurea herbicides. Furthermore, the localization of degradation enzyme indicated that the nicosulfuron-degrading enzyme was an extracellular fraction. By analyzing the metabolites of nicosulfuron, it could be further determined that the degradation of nicosulfuron by strain CF57 was mainly through the extracellular enzyme, and its possible degradation pathway was mainly derived from the cleavage of the C-N bond of the sulfonylurea bridge. These results may provide new insights into bioremediation of nicosulfuron-contaminated environments and enrich the resources of degrading bacteria of sulfonylurea herbicides.
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Affiliation(s)
- Chenfang Zhang
- College of Plant Protection, Hebei Agricultural University, Baoding, China
| | - Lai Chen
- College of Plant Protection, Hebei Agricultural University, Baoding, China
| | - Helong Si
- College of Life Sciences, Hebei Agricultural University, Baoding, China
| | - Wei Gao
- College of Plant Protection, Hebei Agricultural University, Baoding, China
| | - Peng Liu
- College of Plant Protection, Hebei Agricultural University, Baoding, China
| | - Jinlin Zhang
- College of Plant Protection, Hebei Agricultural University, Baoding, China
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Marzullo BP, Morgan TE, Wootton CA, Li M, Perry SJ, Saeed M, Barrow MP, O'Connor PB. Comparison of Fragmentation Techniques for the Structural Characterization of Singly Charged Agrochemicals. Anal Chem 2020; 92:3143-3151. [PMID: 31909982 DOI: 10.1021/acs.analchem.9b04820] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Investigating the structure of active ingredients, such as agrochemicals and their associated metabolites, is a crucial requisite in the discovery and development of these molecules. In this study, structural characterization by electron-induced dissociation (EID) was compared to collisionally activated dissociation (CAD) on a series of agrochemicals. EID fragmentation produced a greater variety of fragment ions and complementary ion pairs leading to more complete functional group characterization compared to CAD. The results obtained displayed many more cross-ring fragmentation of the pyrimidine ring compared to the pyridine ring. Compounds that consisted of one aromatic heterocyclic moiety (azoxystrobin, fluazifop acid, fluazifop-p-butyl, and pirimiphos-methyl) displayed cross-ring fragmentation while compounds with only aromatic hydrocarbon rings (fenpropidin and S-metolachlor) displayed no cross-ring fragmentation. The advantages of high-resolution accurate mass spectrometry (HRAM MS) are shown with the majority of assignments at ppb range error values and the ability to differentiate ions with the same nominal mass but different elemental composition. This highlights the potential for HRAM MS and EID to be used as a tool for structural characterization of small molecules with a wide variety of functional groups and structural motifs.
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Affiliation(s)
- Bryan P Marzullo
- Department of Chemistry , University of Warwick , Coventry CV4 7AL , United Kingdom
| | - Tomos E Morgan
- Department of Chemistry , University of Warwick , Coventry CV4 7AL , United Kingdom
| | | | - Meng Li
- Department of Chemistry , University of Warwick , Coventry CV4 7AL , United Kingdom
| | - Simon J Perry
- Syngenta, Jealott's Hill International Research Centre , Product Metabolism & Analytical Sciences , RG42 6EY Berkshire , United Kingdom
| | - Mansoor Saeed
- Syngenta, Jealott's Hill International Research Centre , Product Metabolism & Analytical Sciences , RG42 6EY Berkshire , United Kingdom
| | - Mark P Barrow
- Department of Chemistry , University of Warwick , Coventry CV4 7AL , United Kingdom
| | - Peter B O'Connor
- Department of Chemistry , University of Warwick , Coventry CV4 7AL , United Kingdom
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Li C, Zhang N, Chen J, Ji J, Liu X, Wang J, Zhu J, Ma Y. Temperature and pH sensitive composite for rapid and effective removal of sulfonylurea herbicides in aqueous solution. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 255:113150. [PMID: 31541823 DOI: 10.1016/j.envpol.2019.113150] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 08/29/2019] [Accepted: 08/30/2019] [Indexed: 06/10/2023]
Abstract
Excessive pesticide residues in the environment have caused more and more serious social problems. In this article, the polymer materials and graphene oxide were smoothly grafted together through surface-initiated atom-transfer radical polymerization. A temperature and pH dual-sensitive adsorbent was successfully obtained, which was used for the removal of six sulfonylurea herbicides in the aquatic environment. Experiment results showed that the adsorbent could efficiently remove the tested pesticides in aqueous solution rapidly (only 1 min). The adsorption process was in consist with the pseudo-second-order kinetics equation and Freundlich model, and the thermodynamic parameters were also calculated. Furthermore, the mechanism for removal performance was judged as n-π, π-π, hydrogen bonding, hydrophobic and electrostatic interaction verdict. Exhilaratingly, the material showed no significant toxicity to Daphnia magna on risk assessment.
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Affiliation(s)
- Changsheng Li
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Nan Zhang
- The Institute for the Control of Agrochemicals, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing, 100125, China
| | - Jixiao Chen
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Jiawen Ji
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Xue Liu
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Jianli Wang
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Jianhui Zhu
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China
| | - Yongqiang Ma
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, China.
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7
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Zhao R, Zhang X, Chen F, Man X, Jiang W. Study on Electrochemical Degradation of Nicosulfuron by IrO₂-Based DSA Electrodes: Performance, Kinetics, and Degradation Mechanism. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E343. [PMID: 30691144 PMCID: PMC6388240 DOI: 10.3390/ijerph16030343] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/21/2019] [Accepted: 01/21/2019] [Indexed: 11/20/2022]
Abstract
The widely used sulfonylurea herbicides have caused negative effects on the environment and human beings. Electrochemical degradation has attracted much attention in the treatment of refractory organic compounds due to its advantage of producing no secondary pollution. Three kinds of IrO₂-based dimensionally stable anodes (DSAs) were used to degrade nicosulfuron by a batch electrochemical process. The results showed that a well-distributed crack network was formed on the Ti/Ta₂O₅-IrO₂ electrode and Ti/Ta₂O₅-SnO₂-IrO₂ electrode due to the different coefficients of thermal expansion between the Ti substrate and oxide coatings. The oxygen evolution potential (OEP) increased according to the order of Ti/RuO₂-IrO₂ < Ti/Ta₂O₅-SnO₂-IrO₂ < Ti/Ta₂O₅-IrO₂. Among the three electrodes, the Ti/Ta₂O₅-IrO₂ electrode showed the highest efficiency and was chosen as the experimental electrode. Single factor experiments were carried out to obtain the optimum electrolysis condition, shown as follows: currency intensity 0.8 A; electrode spacing 3 cm, electrolyte pH 3. Under the optimum conditions, the degradation of nicosulfuron followed first-order kinetics and was mainly due to indirect electrochemical oxidation. It was a typical diffusion-controlled electrochemical process. On the basis of the intermediate identified by high performance liquid chromatograph-mass spectrometry (HPLC-MS), two possible degradation routes were proposed.
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Affiliation(s)
- Rui Zhao
- College of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250353, China.
| | - Xuan Zhang
- College of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250353, China.
| | - Fanli Chen
- Jinan Tianzheng Technology Co., Ltd., Ji'nan 250353, China.
| | - Xiaobing Man
- Shandong Bluetown Analysis and Testing Co., Ltd, Ji'nan 250353, China.
| | - Wenqiang Jiang
- College of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250353, China.
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Luo Q, Li G, Xiao J, Yin C, He Y, Wang M, Ma C, Zhu C, Xu J. DFT study on the hydrolysis of metsulfuron-methyl: A sulfonylurea herbicide. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2018. [DOI: 10.1142/s0219633618500505] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Sulfonylureas are an important group of herbicides widely used for a range of weeds and grasses control particularly in cereals. However, some of them tend to persist for years in environments. Hydrolysis is the primary pathway for their degradation. To understand the hydrolysis behavior of sulfonylurea herbicides, the hydrolysis mechanism of metsulfuron-methyl, a typical sulfonylurea, was investigated using density functional theory (DFT) at the B3LYP/6-31[Formula: see text]G(d,p) level. The hydrolysis of metsulfuron-methyl resembles nucleophilic substitution by a water molecule attacking the carbonyl group from aryl side (pathway a) or from heterocycle side (pathway b). In the direct hydrolysis, the carbonyl group is directly attacked by one water molecule to form benzene sulfonamide or heterocyclic amine; the free energy barrier is about 52–58[Formula: see text]kcal[Formula: see text]mol[Formula: see text]. In the autocatalytic hydrolysis, with the second water molecule acting as a catalyst, the free energy barrier, which is about 43–45[Formula: see text]kcal[Formula: see text]mol[Formula: see text], is remarkably reduced by about 11[Formula: see text]kcal[Formula: see text]mol[Formula: see text]. It is obvious that water molecules play a significant catalytic role during the hydrolysis of sulfonylureas.
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Affiliation(s)
- Qiuhan Luo
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Gang Li
- Weifang University of Science and Technology, Shouguang, Shangdong 262700, P. R. China
| | - Junping Xiao
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Chunhui Yin
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Yahui He
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Mingliang Wang
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Chensheng Ma
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Caizhen Zhu
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Jian Xu
- Institute of Low-Dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
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Carles L, Rossi F, Besse-Hoggan P, Blavignac C, Leremboure M, Artigas J, Batisson I. Nicosulfuron Degradation by an Ascomycete Fungus Isolated From Submerged Alnus Leaf Litter. Front Microbiol 2018; 9:3167. [PMID: 30619225 PMCID: PMC6305708 DOI: 10.3389/fmicb.2018.03167] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 12/07/2018] [Indexed: 11/14/2022] Open
Abstract
Nicosulfuron is a selective herbicide belonging to the sulfonylurea family, commonly applied on maize crops. Its worldwide use results in widespread presence as a contaminant in surface streams and ground-waters. In this study, we isolated, for the first time, the Plectosphaerella cucumerina AR1 nicosulfuron-degrading fungal strain, a new record from Alnus leaf litter submerged in freshwater. The degradation of nicosulfuron by P. cucumerina AR1 was achieved by a co-metabolism process and followed a first-order model dissipation. Biodegradation kinetics analysis indicated that, in planktonic lifestyle, nicosulfuron degradation by this strain was glucose concentration dependent, with a maximum specific degradation rate of 1 g/L in glucose. When grown on natural substrata (leaf or wood) as the sole carbon sources, the Plectosphaerella cucumerina AR1 developed as a well-established biofilm in 10 days. After addition of nicosulfuron in the medium, the biofilms became thicker, with rising mycelium, after 10 days for leaves and 21 days for wood. Similar biofilm development was observed in the absence of herbicide. These fungal biofilms still conserve the nicosulfuron degradation capacity, using the same pathway as that observed with planktonic lifestyle as evidenced by LC-MS analyses. This pathway involved first the hydrolysis of the nicosulfuron sulfonylurea bridge, leading to the production of two major metabolites: 2-amino-4,6-dimethoxypyrimidine (ADMP) and 2-(aminosulfonyl)-N,N-dimethyl-3-pyridinecarboxamide (ASDM). One minor metabolite, identified as 2-(1-(4,6-dimethoxy-pyrimidin-2-yl)-ureido)-N,N-dimethyl-nicotinamide (N3), derived from the cleavage of the C-S bond of the sulfonylurea bridge and contraction by elimination of sulfur dioxide. A last metabolite (N4), detected in trace amount, was assigned to 2-(4,6-dimethoxy-pyrimidin-2-yl)-N,N-dimethyl-nicotinamide (N4), resulting from the hydrolysis of the N3 urea function. Although fungal growth was unaffected by nicosulfuron, its laccase activity was significantly impaired regardless of lifestyle. Leaf and wood surfaces being good substrata for biofilm development in rivers, P. cucumerina AR1 strain could thus have potential as an efficient candidate for the development of methods aiming to reduce contamination by nicosulfuron in aquatic environments.
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Affiliation(s)
- Louis Carles
- Laboratoire Microorganismes: Génome et Environnement, CNRS, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Florent Rossi
- Laboratoire Microorganismes: Génome et Environnement, CNRS, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Pascale Besse-Hoggan
- Institut de Chimie de Clermont-Ferrand, CNRS, Sigma Clermont, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Christelle Blavignac
- Centre Imagerie Cellulaire Santé, Université Clermont Auvergne (UCA PARTNER), Clermont-Ferrand, France
| | - Martin Leremboure
- Institut de Chimie de Clermont-Ferrand, CNRS, Sigma Clermont, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Joan Artigas
- Laboratoire Microorganismes: Génome et Environnement, CNRS, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Isabelle Batisson
- Laboratoire Microorganismes: Génome et Environnement, CNRS, Université Clermont Auvergne, Clermont-Ferrand, France
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Zhou S, Song J, Dong W, Mu Y, Zhang Q, Fan Z, Wang Y, Kong D, Zhou Y, Jiang X, Zhao B, Han G, Ruan Z. Nicosulfuron Biodegradation by a Novel Cold-Adapted Strain Oceanisphaera psychrotolerans LAM-WHM-ZC. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:10243-10249. [PMID: 29111703 DOI: 10.1021/acs.jafc.7b04022] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Nicosulfuron is a common environmental pollutant, posing a great threat to aquatic systems and causing significant damage to crops. This study reported a cold-adapted strain Oceanisphaera psychrotolerans LAM-WHM-ZC, which efficiently degrades nicosulfuron over a wide range of temperatures (5 to 40 °C). The Box-Behnken design method was used to optimize the degradation conditions. O. psychrotolerans LAM-WHM-ZC can degrade 92.4% and 74.6% of initially supplemented 100 mg/L nicosulfuron under the optimum and low temperature of 18.1 and 5 °C, respectively, within 7 days. O. psychrotolerans LAM-WHM-ZC was found to be highly efficient in degrading cinosulfuron, chlorsulfuron, rimsulfuron, bensulfuron methyl, and ethametsulfuron methyl. Metabolites from nicosulfuron degradation were identified by UPLC-MS, and a possible degradation pathway was proposed. Furthermore, O. psychrotolerans LAM-WHM-ZC can also degrade nicosulfuron in soil; 78.6% and 67.4% of the initial nicosulfuron supplemented at 50 mg/kg were removed at 18.1 and 5 °C, respectively, within 15 days.
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Affiliation(s)
- Shan Zhou
- Institute of Agricultural Resources and Regional Planning CAAS , Beijing 100081, China
- Wuhan University , Wuhan 430072, China
| | - Jinlong Song
- Key Laboratory of Control of Quality and Safety for Aquatic Products (Ministry of Agriculture) Chinese Academy of Fishery Sciences , Beijing 100141, China
| | - Weiwei Dong
- State Key Laboratory of Agricultural Microbiology and College of Life Science and Technology, Huazhong Agricultural University , Wuhan 430070, China
| | - Yingchun Mu
- Key Laboratory of Control of Quality and Safety for Aquatic Products (Ministry of Agriculture) Chinese Academy of Fishery Sciences , Beijing 100141, China
| | - Qi Zhang
- Institute of Agricultural Resources and Regional Planning CAAS , Beijing 100081, China
| | - Ziwen Fan
- Wuhan University , Wuhan 430072, China
| | - Yanwei Wang
- Key Laboratory of Development and Application of Rural Renewable Energy (Ministry of Agriculture), Biogas Institute of Ministry of Agriculture , Chengdu 610041, China
| | - Delong Kong
- Institute of Agricultural Resources and Regional Planning CAAS , Beijing 100081, China
| | - Yiqing Zhou
- Institute of Agricultural Resources and Regional Planning CAAS , Beijing 100081, China
| | - Xu Jiang
- Institute of Agricultural Resources and Regional Planning CAAS , Beijing 100081, China
| | - Bin Zhao
- State Key Laboratory of Agricultural Microbiology and College of Life Science and Technology, Huazhong Agricultural University , Wuhan 430070, China
| | - Gang Han
- Key Laboratory of Control of Quality and Safety for Aquatic Products (Ministry of Agriculture) Chinese Academy of Fishery Sciences , Beijing 100141, China
| | - Zhiyong Ruan
- Institute of Agricultural Resources and Regional Planning CAAS , Beijing 100081, China
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11
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Effect of inorganic ions, photosensitisers and scavengers on the photocatalytic degradation of nicosulfuron. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2016.12.031] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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12
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Leite GLD, de Paulo PD, Zanuncio JC, Tavares WDS, Alvarenga AC, Dourado LR, Bispo EPR, Soares MA. Herbicide toxicity, selectivity and hormesis of nicosulfuron on 10 Trichogrammatidae (Hymenoptera) species parasitizing Anagasta ( = Ephestia) kuehniella (Lepidoptera: Pyralidae) eggs. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2017; 52:70-76. [PMID: 27726483 DOI: 10.1080/03601234.2016.1229476] [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] [Indexed: 06/06/2023]
Abstract
Selective agrochemicals including herbicides that do not affect non-target organisms such as natural enemies are important in the integrated pest management (IPM) programs. The aim of this study was to evaluate the herbicide toxicity, selectivity and hormesis of nicosulfuron, recommended for the corn Zea mays L. (Poaceae) crop, on 10 Trichogrammatidae (Hymenoptera) species. A female of each Trichogramma spp. or Trichogrammatoidea annulata De Santis, 1972 was individually placed in plastic test tubes (no choice) with a cardboard containing 45 flour moth Anagasta ( = Ephestia) kuehniella Zeller, 1879 (Lepidoptera: Pyralidae) eggs. Parasitism by these natural enemies was allowed for 48 h and the cardboards were sprayed with the herbicide nicosulfuron at 1.50 L.ha-1, along with the control (only distilled water). Nicosulfuron reduced the emergence rate of Trichogramma bruni Nagaraja, 1983 females, but increased that of Trichogramma pretiosum Riley, 1879, Trichogramma acacioi Brun, Moraes and Smith, 1984 and T. annulata females. Conversely, this herbicide increased the emergence rate of Trichogramma brasiliensis Ashmead, 1904, T. bruni, Trichogramma galloi Zucchi, 1988 and Trichogramma soaresi Nagaraja, 1983 males and decreased those of T. acacioi, Trichogramma atopovilia Oatman and Platner, 1983 and T. pretiosum males. In addition, nicosulfuron reduced the sex ratio of T. galloi, Trichogramma bennetti Nagaraja and Nagarkatti, 1973 and T. pretiosum and increased that of T. acacioi, T. bruni, T. annulata, Trichogramma demoraesi Nagaraja, 1983, T. soaresi and T. brasiliensis. The herbicide nicosulfuron was "harmless" (class 1, <30% reduction) for females and the sex ratio of all Trichogrammatidae species based on the International Organization for Biological Control (IOBC) classification. The possible hormesis effect of nicosulfuron on Trichogrammatidae species and on the bacterium Wolbachia sp. (Rickettsiales: Rickettsiaceae) was also discussed.
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Affiliation(s)
- Germano L D Leite
- a Insetário G.W.G. de Moraes, Instituto de Ciências Agrárias, Universidade Federal de Minas Gerais , Montes Claros , Minas Gerais State , Brazil
| | - Paula D de Paulo
- a Insetário G.W.G. de Moraes, Instituto de Ciências Agrárias, Universidade Federal de Minas Gerais , Montes Claros , Minas Gerais State , Brazil
| | - José C Zanuncio
- b Departamento de Entomologia/BIOAGRO , Universidade Federal de Viçosa , Viçosa , Minas Gerais State , Brazil
| | - Wagner De S Tavares
- c Departamento de Fitotecnia , Universidade Federal de Viçosa , Viçosa , Minas Gerais State , Brazil
| | - Anarelly C Alvarenga
- a Insetário G.W.G. de Moraes, Instituto de Ciências Agrárias, Universidade Federal de Minas Gerais , Montes Claros , Minas Gerais State , Brazil
| | - Luan R Dourado
- a Insetário G.W.G. de Moraes, Instituto de Ciências Agrárias, Universidade Federal de Minas Gerais , Montes Claros , Minas Gerais State , Brazil
| | - Edilson P R Bispo
- a Insetário G.W.G. de Moraes, Instituto de Ciências Agrárias, Universidade Federal de Minas Gerais , Montes Claros , Minas Gerais State , Brazil
| | - Marcus A Soares
- d Departamento de Agronomia , Universidade Federal dos Vales do Jequitinhonha e Mucuri , Diamantina , Minas Gerais State , Brazil
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13
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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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14
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Remucal CK. The role of indirect photochemical degradation in the environmental fate of pesticides: a review. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2014; 16:628-53. [PMID: 24419250 DOI: 10.1039/c3em00549f] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Photochemical degradation contributes to the environmental fate of many pesticides in surface waters. A better understanding of the role of direct and indirect photochemical degradation of pesticides is necessary in order to predict their environmental fate and persistence. This review includes all major pesticide classes and focuses on the importance of dissolved organic matter (DOM) as a sensitizer in indirect photodegradation within aquatic systems. Photochemical studies conducted under environmentally relevant conditions (i.e., aqueous solutions with irradiation wavelengths >290 nm) are included. Comparisons are made between observed photodegradation rates in pure or buffered water and in water containing DOM to assess the extent of pesticide susceptibility to DOM-sensitized indirect photolysis. When data is available, the role of specific reactive species in indirect photodegradation is described. While it is possible to assess the relative importance of direct and indirect photodegradation on a pesticide-by-pesticide basis in many cases, it is often difficult to make generalizations based on compound class. Knowledge gaps and inconstancies in the current body of literature are discussed and areas that require additional research are described.
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Affiliation(s)
- Christina K Remucal
- University of Wisconsin-Madison, Department of Civil and Environmental Engineering, 660 N. Park St., Madison, WI, USA.
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15
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Benzi M, Robotti E, Gianotti V. Study on the photodegradation of amidosulfuron in aqueous solutions by LC-MS/MS. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2013; 20:9034-9043. [PMID: 23771442 DOI: 10.1007/s11356-013-1900-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Accepted: 06/03/2013] [Indexed: 06/02/2023]
Abstract
Sulfonylurea herbicides are extensively widespread for the protection of a variety of crops and vegetables because of their low application rates, high selectivity and low persistency in the environment; unfortunately, their low persistence does not always correspond to a lower toxicity, since new species potentially more toxic and stable than the precursor herbicides can form, owing to natural degradation processes. Here, the photodegradation of amidosulfuron in aqueous solutions was studied by high-performance liquid chromatography with diode array detection and tandem mass spectrometry to identify the degradation products in order to outline the environmental fate of the molecules generating from the simulation of one of the natural processes that can occur, i.e., photoinduced degradation. The photodegradation process results in a first order kinetic reaction with a t 1/2 value of 276 h (11.5 days) and a kinetic constant of 0.0027 h(-1), and three possible degradation products were identified. The results obtained are then compared to those obtained in previous works carried out in comparable experimental conditions about nicosulfuron and tribenuron-methyl, two sulfonylurea herbicides belonging to different classes, and to literature data: hypotheses on the existence of preferential degradation pathways are then drawn, in consequence of the molecular structure of the sulfonylurea pesticide. In particular, the use of organic solvents to obtain complete solubilization of the sample plays a fundamental role and deeply influences the degradation processes that, therefore, not always fully adhere to the actual natural photodegradation pathways. Moreover, considerations about toxicity were driven since the complete mineralisation of the sample is not reached: even when the parent pesticides are totally degraded, they are, however, transformed into other organic compounds showing, if subject to ecotoxicological tests, at least the same toxicity of the precursor herbicides. The evidence here presented suggests that, at least for the class of sulfonylurea pesticides, their professed low persistence actually does not produce any real advantage.
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Affiliation(s)
- M Benzi
- ARPA Valle d'Aosta, Località Grande Charrière 44, 11020, Saint-Christophe, AO, Italy
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16
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Farré MJ, Radjenovic J, Gernjak W. Assessment of degradation byproducts and NDMA formation potential during UV and UV/H2O2 treatment of doxylamine in the presence of monochloramine. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:12904-12912. [PMID: 23134233 DOI: 10.1021/es302883n] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
UV-C radiation is the U.S. EPA recommended technology to remove N-nitrosodimethylamine (NDMA) during drinking and recycled water production. Frequently, H(2)O(2) is added to the treatment to remove other recalcitrant compounds and to prevent NDMA reformation. However, the transformation of NDMA precursors during the UV and UV/H(2)O(2) process and the consequences for NDMA formation potential are currently not well understood, in particular in the presence of monochloramine. In this study, doxylamine has been chosen as a model compound to elucidate its degradation byproducts in the UV and UV/H(2)O(2) process and correlate those with changes to the NDMA formation potential. This study shows that during UV treatment in the presence and absence of monochloramine, NDMA formation potential can be halved. However, an increase of more than 30% was observed when hydrogen peroxide was added. Ultrafast liquid chromatography coupled to quadrupole-linear ion trap mass spectrometer was used for screening and structural elucidation of degradation byproducts identifying 21 chemical structures from the original parent compound. This work shows that further oxidation of NDMA precursors does not necessarily lead to a decrease in NDMA formation potential. Degradation byproducts with increased electron density in the vicinity of the dimethylamino moiety, for example induced by hydroxylation, may have a higher yield of nucleophilic substitution and subsequent NDMA formation compared to the parent compound during chloramination. This work demonstrates the need to consider the formation of oxidation byproducts and associated implications for the control and management of NDMA formation in downstream processes and distribution when integrating oxidative treatments into a treatment train generating either drinking water or recycled water for potable reuse.
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Affiliation(s)
- Maria José Farré
- The University of Queensland, Advanced Water Management Centre, Queensland 4072, Australia.
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17
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Niessen WMA. Fragmentation of toxicologically relevant drugs in negative-ion liquid chromatography-tandem mass spectrometry. MASS SPECTROMETRY REVIEWS 2012; 31:626-665. [PMID: 22829116 DOI: 10.1002/mas.20359] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Revised: 03/13/2012] [Accepted: 03/13/2012] [Indexed: 06/01/2023]
Abstract
Negative-ion LC-MS analysis of drugs is applied far less frequently than positive-ion LC-MS. Data on the interpretation of negative-ion MS-MS spectra are even more scarce. Therefore, following the recent review on the class-specific fragmentation of toxicologically relevant compounds in positive-ion MS-MS, it was decided to perform a similar study in negative-ion MS-MS. To this end, a set of over 500 negative-ion MS-MS spectra was collected from three libraries applied in toxicological general unknown screening and systematic toxicological analysis. The compounds involved were classified by chemical and therapeutic class. The MS-MS spectra were manually interpreted and relevant interpretation data were searched for in the scientific literature. The emphasis in the discussion is on class-specific fragmentation, because discussing fragmentation of all individual compounds would take far too much space. Negative-ion MS-MS fragmentation is discussed for a wide variety of toxicologically relevant compounds, including dihydropyridine calcium channel blockers, diuretics, barbiturates, anti-inflammatory drugs, anti-diabetics, sulfonamide and betalactam antibiotics, and a number of classes of pesticides.
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Affiliation(s)
- W M A Niessen
- hyphen MassSpec, de Wetstraat 8, 2332 XT Leiden, The Netherlands.
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