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Zhou F, Wu X, Fan S, Zhao X, Li M, Song F, Huang Y, Zhang X. Detoxification of phoxim by a gut bacterium of Delia antiqua. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 943:173866. [PMID: 38862045 DOI: 10.1016/j.scitotenv.2024.173866] [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: 01/29/2024] [Revised: 05/30/2024] [Accepted: 06/07/2024] [Indexed: 06/13/2024]
Abstract
The presence of certain associated bacteria has been reported to increase pest resistance to pesticides, which poses a serious threat to food security and the environment. Researches on the above microbe-derived pesticide resistance would bring innovative approaches for pest management. Investigations into the phoxim resistance of Delia antiqua, one Liliaceae crop pests, revealed the contribution of a phoxim-degrading gut bacterium, D39, to this resistance. However, how the strain degraded phoxim was unknown. In this study, the role of D39 in phoxim degradation and resistance was first confirmed. DT, which had an identical taxonomy but lacked phoxim-degrading activity, was analyzed alongside D39 via comparative genomics to identify the potential phoxim degrading genes. In addition, degradation metabolites were identified, and a potential degradation pathway was proposed. Furthermore, the main gene responsible for degradation and the metabolites of phoxim were further validated via prokaryotic expression. The results showed that D39 contributed to resistance in D. antiqua larva by degrading phoxim. Phoxim was degraded by an enzyme encoded by the novel gene phoD in D39 to O,O-diethyl hydrogen phosphorothioate and 2-hydroxyimino-2-phenylacetonitrile. Finally, downstream products were metabolized in the tricarboxylic acid cycle. Further analysis via prokaryotic expression of phoD confirmed its degradation activity. The mechanisms through which gut microbes promote pesticide resistance are elucidated in this study. These results could aid in the development of innovative pest control methods. In addition, this information could also be used to identify microbial agents that could be applied for the remediation of pesticide contamination.
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Affiliation(s)
- Fangyuan Zhou
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250103, China
| | - Xiaoqing Wu
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250103, China
| | - Susu Fan
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250103, China
| | - Xiaoyan Zhao
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250103, China
| | - Miaomiao Li
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250103, China
| | - Fanyong Song
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250103, China
| | - Yujie Huang
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250103, China
| | - Xinjian Zhang
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250103, China.
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Wu X, Chen WJ, Lin Z, Huang Y, El Sebai TNM, Alansary N, El-Hefny DE, Mishra S, Bhatt P, Lü H, Chen S. Rapid Biodegradation of the Organophosphorus Insecticide Acephate by a Novel Strain Burkholderia sp. A11 and Its Impact on the Structure of the Indigenous Microbial Community. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:5261-5274. [PMID: 36962004 DOI: 10.1021/acs.jafc.2c07861] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The acephate-degrading microbes that are currently available are not optimal. In this study, Burkholderia sp. A11, an efficient degrader of acephate, presented an acephate-removal efficiency of 83.36% within 56 h (100 mg·L-1). The A11 strain has a broad substrate tolerance and presents a good removal effect in the concentration range 10-1600 mg·L-1. Six metabolites from the degradation of acephate were identified, among which the main products were methamidophos, acetamide, acetic acid, methanethiol, and dimethyl disulfide. The main degradation pathways involved include amide bond breaking and phosphate bond hydrolysis. Moreover, strain A11 successfully colonized and substantially accelerated acephate degradation in different soils, degrading over 90% of acephate (50-200 mg·kg-1) within 120 h. 16S rDNA sequencing results further confirmed that the strain A11 gradually occupied a dominant position in the soil microbial communities, causing slight changes in the diversity and composition of the indigenous soil microbial community structure.
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Affiliation(s)
- Xiaozhen Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, 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
| | - Wen-Juan Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, 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
| | - Ziqiu Lin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, 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
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, 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
| | - Talaat N-M El Sebai
- Department of Agricultural Microbiology, Agricultural and Biology Research Institute, National Research Centre, El-Buhouth Street, 12622 Dokki, Cairo, Egypt
| | - Nasser Alansary
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China
- Plant Protection Department, Division of Pesticides, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
| | - Dalia E El-Hefny
- Pesticide Residues and Environmental Pollution Department, Central of Agricultural Pesticide Laboratory, Agricultural Research Center, 12618 Dokki, Giza, Egypt
| | - 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, Indiana 47906, United States
| | - Huixiong Lü
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Shaohua Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, 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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Suo P, Wang K, Yu H, Fu X, An L, Bhowmick B, Zhang J, Han Q. Seasonal Variation of Midgut Bacterial Diversity in Culex quinquefasciatus Populations in Haikou City, Hainan Province, China. BIOLOGY 2022; 11:biology11081166. [PMID: 36009794 PMCID: PMC9405131 DOI: 10.3390/biology11081166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/26/2022] [Accepted: 07/29/2022] [Indexed: 11/17/2022]
Abstract
Simple Summary Mosquito midgut microbiota has become an interesting field in mosquito vector biology, as it has been shown to form an integral part of the mosquito life history. But less is known about seasonal variation of midgut bacterial diversity of Culex quinquefasciatus. Our results illustrate that the Bacteroidetes (Bacterial Phyla) communities have been well observed in autumn and winter seasons, suggesting that this might participate in the nutritional supply of adult mosquitoes when temperatures drop. This discovery provides a new perspective for the control of Cx. quinquefasciatus to reduce the transmission of diseases. There is much sufficiently practical significance to reduce the density of Cx. quinquefasciatus in autumn and winter when their activities are weakened, which is of absolute benefit to human beings and the natural environment. Abstract Culex quinquefasciatus, one of the most significant mosquito vectors in the world, is widespread in most parts of southern China. A variety of diseases including Bancroft’s filariasis, West Nile disease, and St. Louis encephalitis could be transmitted by the vector. Mosquitoes have been shown to host diverse bacterial communities that vary depending on environmental factors such as temperature and rainfall. In this work, 16S rDNA sequencing was used to analyze the seasonal variation of midgut bacterial diversity of Cx. Quinquefasciatus in Haikou City, Hainan Province, China. Proteobacteria was the dominant phylum, accounting for 79.7% (autumn), 73% (winter), 80.4% (spring), and 84.5% (summer). The abundance of Bacteroidetes in autumn and winter was higher than in others. Interestingly, Epsilonbacteraeota, which only exists in autumn and winter, was discovered accidentally in the midgut. We speculated that this might participate in the nutritional supply of adult mosquitoes when temperatures drop. Wolbachia is the most abundant in autumn, accounting for 31.6% of bacteria. The content of Pantoea was highest in the summer group, which might be related to the enhancement of the ability of mosquitoes as temperatures increased. Pseudomonas is carried out as the highest level in winter. On the contrary, in spring and summer, the genus in highest abundance is Enterobacter. Acinetobacter enriches in the spring when it turns from cold to hot. By studying the diversity of midgut bacteria of Cx. quinquefasciatus, we can further understand the co-evolution of mosquitoes and their symbiotic microbes. This is necessary to discuss the seasonal variation of microorganisms and ultimately provide a new perspective for the control of Cx. quinquefasciatus to reduce the spread of the diseases which have notably vital practical significance for the effective prevention of Cx. quinquefasciatus.
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Affiliation(s)
- Penghui Suo
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University, Haikou 570228, China; (P.S.); (K.W.); (H.Y.); (X.F.); (L.A.); (B.B.)
- One Health Institute, Hainan University, Haikou 570228, China
| | - Kaixuan Wang
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University, Haikou 570228, China; (P.S.); (K.W.); (H.Y.); (X.F.); (L.A.); (B.B.)
- One Health Institute, Hainan University, Haikou 570228, China
| | - Hongxiao Yu
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University, Haikou 570228, China; (P.S.); (K.W.); (H.Y.); (X.F.); (L.A.); (B.B.)
- One Health Institute, Hainan University, Haikou 570228, China
| | - Xiuhao Fu
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University, Haikou 570228, China; (P.S.); (K.W.); (H.Y.); (X.F.); (L.A.); (B.B.)
- One Health Institute, Hainan University, Haikou 570228, China
| | - Liping An
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University, Haikou 570228, China; (P.S.); (K.W.); (H.Y.); (X.F.); (L.A.); (B.B.)
- One Health Institute, Hainan University, Haikou 570228, China
| | - Biswajit Bhowmick
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University, Haikou 570228, China; (P.S.); (K.W.); (H.Y.); (X.F.); (L.A.); (B.B.)
- One Health Institute, Hainan University, Haikou 570228, China
| | - Jiachao Zhang
- College of Food Science and Engineering, Hainan University, Haikou 570228, China;
| | - Qian Han
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University, Haikou 570228, China; (P.S.); (K.W.); (H.Y.); (X.F.); (L.A.); (B.B.)
- One Health Institute, Hainan University, Haikou 570228, China
- Correspondence:
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Wang YT, Shen RX, Xing D, Zhao CP, Gao HT, Wu JH, Zhang N, Zhang HD, Chen Y, Zhao TY, Li CX. Metagenome Sequencing Reveals the Midgut Microbiota Makeup of Culex pipiens quinquefasciatus and Its Possible Relationship With Insecticide Resistance. Front Microbiol 2021; 12:625539. [PMID: 33717014 PMCID: PMC7948229 DOI: 10.3389/fmicb.2021.625539] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 01/25/2021] [Indexed: 01/01/2023] Open
Abstract
Midgut microbiota can participate in the detoxification and metabolism processes in insects, but there are few reports on the relationship between midgut microbiota and insecticide resistance in mosquitoes. In this study, we performed metagenomic sequencing on a susceptible strain (SS), a field-collected Hainan strain (HN), and a deltamethrin-resistant strain (RR) of Culex pipiens quinquefasciatus to understand the diversity and functions of their midgut microbiota. The results revealed differences in midgut microbiota among the three strains of Cx. pipiens quinquefasciatus. At the phylum level, Proteobacteria was the most prominent, accounting for nearly 70% of their midgut microbes. At the genus level, Aeromonas made up the highest proportion. In addition, Aeromonas, Morganella, Elizabethkingia, Enterobacter, Cedecea, and Thorsellia showed significant differences between strains. At the species level, Bacillus cereus, Enterobacter cloacae complex sp. 4DZ3-17B2, Streptomyces sp. CNQ329, and some species of Pseudomonas and Wolbachia were more abundant in the two resistant strains. Principal component analysis (PCA) showed that the SS strain had significantly different metagenomic functions than the two deltamethrin-resistant strains (HN and RR strain). The HN and RR strains differed from the SS strain in more than 10 Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. The analysis of species abundance and functional diversity can provide directions for future studies.
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Affiliation(s)
- Yi-Ting Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Key Laboratory of Vector Borne and Natural Focus Infectious Disease, Institute of Microbiology and Epidemiology, Beijing, China
| | - Rui-Xin Shen
- State Key Laboratory of Pathogen and Biosecurity, Beijing Key Laboratory of Vector Borne and Natural Focus Infectious Disease, Institute of Microbiology and Epidemiology, Beijing, China.,School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
| | - Dan Xing
- State Key Laboratory of Pathogen and Biosecurity, Beijing Key Laboratory of Vector Borne and Natural Focus Infectious Disease, Institute of Microbiology and Epidemiology, Beijing, China
| | - Chen-Pei Zhao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Key Laboratory of Vector Borne and Natural Focus Infectious Disease, Institute of Microbiology and Epidemiology, Beijing, China.,College of Life Sciences, Ludong University, Yantai, China
| | - He-Ting Gao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Key Laboratory of Vector Borne and Natural Focus Infectious Disease, Institute of Microbiology and Epidemiology, Beijing, China.,College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Jia-Hong Wu
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
| | - Ning Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Key Laboratory of Vector Borne and Natural Focus Infectious Disease, Institute of Microbiology and Epidemiology, Beijing, China
| | - Heng-Duan Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Key Laboratory of Vector Borne and Natural Focus Infectious Disease, Institute of Microbiology and Epidemiology, Beijing, China
| | - Yan Chen
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
| | - Tong-Yan Zhao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Key Laboratory of Vector Borne and Natural Focus Infectious Disease, Institute of Microbiology and Epidemiology, Beijing, China
| | - Chun-Xiao Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Key Laboratory of Vector Borne and Natural Focus Infectious Disease, Institute of Microbiology and Epidemiology, Beijing, China
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Wang BH, Lian X, Yan B. Recyclable Eu3+ functionalized Hf-MOF fluorescent probe for urinary metabolites of some organophosphorus pesticides. Talanta 2020; 214:120856. [DOI: 10.1016/j.talanta.2020.120856] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 02/18/2020] [Accepted: 02/19/2020] [Indexed: 01/01/2023]
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6
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Fang L, Shi Q, Xu L, Shi T, Wu X, Li QX, Hua R. Enantioselective Uptake Determines Degradation Selectivity of Chiral Profenofos in Cupriavidus nantongensis X1 T. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:6493-6501. [PMID: 32459959 DOI: 10.1021/acs.jafc.0c00132] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Organophosphorus insecticides account for approximately 28% of the global commercial insecticide market, while 40% of them are chiral enantiomers. Chiral enantiomers differ largely in their toxicities. Enantiomers that are less active or inactive do not offer the needed efficacy but pollute the environment and cause toxicities to non-target species. Cupriavidus nantongensis X1T, a recently isolated bacterial strain, could degrade S-profenofos 2.3-fold faster than R-profenofos, while the latter is the active enantiomer potently against pest insects and has greater mammalian safety. The degradation enzyme encoded by opdB was expressed via Escherichia coli and purified. The degradation kinetics of R- and S-profenofos showed that both the purified OpdB and crude enzyme extracts had no enantiomer degradation selectivity, which strongly indicated that the degradation selectivity occurred in the uptake process. Metabolite analyses suggested a novel dealkylation pathway. This is the first report of bacterial selective uptake of organophosphates. Selective degradation of S-profenofos over R-profenofos by the strain X1T suggests a concept of co-application of racemic pesticides and degradation-selective bacteria to minimize contamination and non-target toxicity problems.
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Affiliation(s)
- Liancheng Fang
- Key Laboratory for Agri-Food Safety, School of Resource & Environment, Anhui Agricultural University, Hefei, Anhui 230036, People's Republic of China
| | - Qiongying Shi
- Key Laboratory for Agri-Food Safety, School of Resource & Environment, Anhui Agricultural University, Hefei, Anhui 230036, People's Republic of China
| | - Luyuan Xu
- Key Laboratory for Agri-Food Safety, School of Resource & Environment, Anhui Agricultural University, Hefei, Anhui 230036, People's Republic of China
| | - Taozhong Shi
- Key Laboratory for Agri-Food Safety, School of Resource & Environment, Anhui Agricultural University, Hefei, Anhui 230036, People's Republic of China
| | - Xiangwei Wu
- Key Laboratory for Agri-Food Safety, School of Resource & Environment, Anhui Agricultural University, Hefei, Anhui 230036, People's Republic of China
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, 1955 East-West Road, Honolulu, Hawaii 96822, United States
| | - Rimao Hua
- Key Laboratory for Agri-Food Safety, School of Resource & Environment, Anhui Agricultural University, Hefei, Anhui 230036, People's Republic of China
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Shi T, Fang L, Qin H, Wu X, Li QX, Hua R. Minute-Speed Biodegradation of Organophosphorus Insecticides by Cupriavidus nantongensis X1 T. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:13558-13567. [PMID: 31738544 DOI: 10.1021/acs.jafc.9b06157] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Organophosphorus insecticides (OPs) have been widely used to control agricultural pests, which has raised concerns about OP residues in crops and the environment. In this study, we investigated the degradation kinetics and pathways of 8 OPs by Cupriavidus nantongensis X1T and identified the enzyme via gene cloning and in vitro assays. The degradation half-life of methyl parathion, triazophos, and phoxim was only 5, 9, and 43 min, respectively. It was 46 fold faster than that of triazophos by Bacillus sp. TAP-1, a well-studied triazophos-degrader. Strain X1T completely degraded not only chlorpyrifos, methyl parathion, parathion, fenitrothion, triazophos, and phoxim at 50 mg/L within 48 h but also the phenolic metabolites. This was the fastest degradation of OPs by bacterial whole cells reported thus far. The OPs were first hydrolyzed by an OP hydrolase encoded by the opdB gene in strain X1T, followed by further degradation of the metabolites. The crude enzyme maintained a full activity.
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Affiliation(s)
- Taozhong Shi
- Key Laboratory for Agri-Food Safety, School of Resource & Environment , Anhui Agricultural University , Hefei , Anhui 230036 , China
| | - Liancheng Fang
- Key Laboratory for Agri-Food Safety, School of Resource & Environment , Anhui Agricultural University , Hefei , Anhui 230036 , China
| | - Han Qin
- Key Laboratory for Agri-Food Safety, School of Resource & Environment , Anhui Agricultural University , Hefei , Anhui 230036 , China
| | - Xiangwei Wu
- Key Laboratory for Agri-Food Safety, School of Resource & Environment , Anhui Agricultural University , Hefei , Anhui 230036 , China
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering , University of Hawaii at Manoa , 1955 East-West Road , Honolulu , Hawaii 96822 , United States
| | - Rimao Hua
- Key Laboratory for Agri-Food Safety, School of Resource & Environment , Anhui Agricultural University , Hefei , Anhui 230036 , China
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Takeo M, Yamamoto K, Sonoyama M, Miyanaga K, Kanbara N, Honda K, Kato DI, Negoro S. Characterization of the 3-methyl-4-nitrophenol degradation pathway and genes of Pseudomonas sp. strain TSN1. J Biosci Bioeng 2018; 126:355-362. [PMID: 29699943 DOI: 10.1016/j.jbiosc.2018.04.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 03/14/2018] [Accepted: 04/02/2018] [Indexed: 11/18/2022]
Abstract
3-Methyl-4-nitrophenol (3M4NP) is formed in soil as a hydrolysis product of fenitrothion, one of the major organophosphorus pesticides. A Pseudomonas strain was isolated as a 3M4NP degrader from a crop soil and designated TSN1. This strain utilized 3M4NP as a sole carbon and energy source. To elucidate the biodegradation pathway, we performed transposon mutagenesis with pCro2a (mini-Tn5495) and obtained three mutants accumulating a dark pink compound(s) from 3M4NP. Rescue cloning and sequence analysis revealed that in all mutants, the transposon disrupted an identical aromatic compound meta-cleaving dioxygenase gene, and a monooxygenase gene was located just downstream of the dioxygenase gene. These two genes were designated mnpC and mnpB, respectively. The gene products showed high identity with the methylhydroquinone (MHQ) monooxygenase (58%) and the 3-methylcatechol 2,3-dioxygenase (54%) of a different 3M4NP degrader Burkholderia sp. NF100. The transposon mutants converted 3M4NP or MHQ into two identical metabolites, one of which was identified as 2-hydroxy-5-methyl-1,4-benzoquinone (2H5MBQ) by GC/MS analysis. Furthermore, two additional genes (named mnpA1 and mnpA2), almost identical to the p-nitrophenol monooxygenase and the p-benzoquinone reductase genes of Pseudomonas sp. WBC-3, were isolated from the total DNA of strain TSN1. Disruption of mnpA1 resulted in the complete loss of the 3M4NP degradation activity, demonstrating that mnpA1 encodes the initial monooxygenase for 3M4NP degradation. The purified mnpA2 gene product could efficiently reduce methyl p-benzoquinone (MBQ) into MHQ. These results suggest that strain TSN1 degrades 3M4NP via MBQ, MHQ, and 2H5MBQ in combination with mnpA1A2 and mnpCB, existing at different loci on the genome.
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Affiliation(s)
- Masahiro Takeo
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan.
| | - Kenta Yamamoto
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan
| | - Masashi Sonoyama
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan
| | - Kana Miyanaga
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan
| | - Nana Kanbara
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan
| | - Koichi Honda
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan
| | - Dai-Ichiro Kato
- Department of Chemistry and Bioscience, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima, Kagoshima 890-0065, Japan
| | - Seiji Negoro
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan
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Itoh H, Hori T, Sato Y, Nagayama A, Tago K, Hayatsu M, Kikuchi Y. Infection dynamics of insecticide-degrading symbionts from soil to insects in response to insecticide spraying. THE ISME JOURNAL 2018; 12:909-920. [PMID: 29343832 PMCID: PMC5864243 DOI: 10.1038/s41396-017-0021-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 10/26/2017] [Accepted: 11/11/2017] [Indexed: 11/09/2022]
Abstract
Insecticide resistance is a serious concern in modern agriculture, and an understanding of the underlying evolutionary processes is pivotal to prevent the problem. The bean bug Riptortus pedestris, a notorious pest of leguminous crops, acquires a specific Burkholderia symbiont from the environment every generation, and harbors the symbiont in the midgut crypts. The symbiont's natural role is to promote insect development but the insect host can also obtain resistance against the insecticide fenitrothion (MEP) by acquiring MEP-degrading Burkholderia from the environment. To understand the developing process of the symbiont-mediated MEP resistance in response to the application of the insecticide, we investigated here in parallel the soil bacterial dynamics and the infected gut symbionts under different MEP-spraying conditions by culture-dependent and culture-independent analyses, in conjunction with stinkbug rearing experiments. We demonstrate that MEP application did not affect the total bacterial soil population but significantly decreased its diversity while it dramatically increased the proportion of MEP-degrading bacteria, mostly Burkholderia. Moreover, we found that the infection of stinkbug hosts with MEP-degrading Burkholderia is highly specific and efficient, and is established after only a few times of insecticide spraying at least in a field soil with spraying history, suggesting that insecticide resistance could evolve in a pest bug population more quickly than was thought before.
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Affiliation(s)
- Hideomi Itoh
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo, Japan
| | - Tomoyuki Hori
- Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
| | - Yuya Sato
- Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
| | - Atsushi Nagayama
- Department of Agriculture, Forestry, and Fisheries, Okinawa Prefecture Government Office, Naha, Japan
| | - Kanako Tago
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
| | - Masahito Hayatsu
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
| | - Yoshitomo Kikuchi
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo, Japan.
- Graduate School of Agriculture, Hokkaido University, Sapporo, Japan.
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10
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Itoh H, Tago K, Hayatsu M, Kikuchi Y. Detoxifying symbiosis: microbe-mediated detoxification of phytotoxins and pesticides in insects. Nat Prod Rep 2018; 35:434-454. [DOI: 10.1039/c7np00051k] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Symbiotic microorganisms degrade natural and artificial toxic compounds, and confer toxin resistance on insect hosts.
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Affiliation(s)
- Hideomi Itoh
- Bioproduction Research Institute
- National Institute of Advanced Industrial Science and Technology (AIST) Hokkaido
- Sapporo 062-8517
- Japan
| | - Kanako Tago
- Institute for Agro-Environmental Sciences
- National Agriculture and Food Research Organization (NARO)
- Tsukuba 305-8604
- Japan
| | - Masahito Hayatsu
- Institute for Agro-Environmental Sciences
- National Agriculture and Food Research Organization (NARO)
- Tsukuba 305-8604
- Japan
| | - Yoshitomo Kikuchi
- Bioproduction Research Institute
- National Institute of Advanced Industrial Science and Technology (AIST) Hokkaido
- Sapporo 062-8517
- Japan
- Graduate School of Agriculture
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11
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Xiang DF, Bigley AN, Ren Z, Xue H, Hull KG, Romo D, Raushel FM. Interrogation of the Substrate Profile and Catalytic Properties of the Phosphotriesterase from Sphingobium sp. Strain TCM1: An Enzyme Capable of Hydrolyzing Organophosphate Flame Retardants and Plasticizers. Biochemistry 2015; 54:7539-49. [DOI: 10.1021/acs.biochem.5b01144] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Dao Feng Xiang
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Andrew N. Bigley
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Zhongjie Ren
- Department of Biochemistry & Biophysics, Texas A&M University, College Station, Texas 77843, United States
| | - Haoran Xue
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Kenneth G. Hull
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Daniel Romo
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Frank M. Raushel
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
- Department of Biochemistry & Biophysics, Texas A&M University, College Station, Texas 77843, United States
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12
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Haloalkylphosphorus hydrolases purified from Sphingomonas sp. strain TDK1 and Sphingobium sp. strain TCM1. Appl Environ Microbiol 2014; 80:5866-73. [PMID: 25038092 DOI: 10.1128/aem.01845-14] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Phosphotriesterases catalyze the first step of organophosphorus triester degradation. The bacterial phosphotriesterases purified and characterized to date hydrolyze mainly aryl dialkyl phosphates, such as parathion, paraoxon, and chlorpyrifos. In this study, we purified and cloned two novel phosphotriesterases from Sphingomonas sp. strain TDK1 and Sphingobium sp. strain TCM1 that hydrolyze tri(haloalkyl)phosphates, and we named these enzymes haloalkylphosphorus hydrolases (TDK-HAD and TCM-HAD, respectively). Both HADs are monomeric proteins with molecular masses of 59.6 (TDK-HAD) and 58.4 kDa (TCM-HAD). The enzyme activities were affected by the addition of divalent cations, and inductively coupled plasma mass spectrometry analysis suggested that zinc is a native cofactor for HADs. These enzymes hydrolyzed not only chlorinated organophosphates but also a brominated organophosphate [tris(2,3-dibromopropyl) phosphate], as well as triaryl phosphates (tricresyl and triphenyl phosphates). Paraoxon-methyl and paraoxon were efficiently degraded by TCM-HAD, whereas TDK-HAD showed weak activity toward these substrates. Dichlorvos was degraded only by TCM-HAD. The enzymes displayed weak or no activity against trialkyl phosphates and organophosphorothioates. The TCM-HAD and TDK-HAD genes were cloned and found to encode proteins of 583 and 574 amino acid residues, respectively. The primary structures of TCM-HAD and TDK-HAD were very similar, and the enzymes also shared sequence similarity with fenitrothion hydrolase (FedA) of Burkholderia sp. strain NF100 and organophosphorus hydrolase (OphB) of Burkholderia sp. strain JBA3. However, the substrate specificities and quaternary structures of the HADs were largely different from those of FedA and OphB. These results show that HADs from sphingomonads are novel members of the bacterial phosphotriesterase family.
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Abstract
Development of insecticide resistance has been a serious concern worldwide, whose mechanisms have been attributed to evolutionary changes in pest insect genomes such as alteration of drug target sites, up-regulation of degrading enzymes, and enhancement of drug excretion. Here, we report a previously unknown mechanism of insecticide resistance: Infection with an insecticide-degrading bacterial symbiont immediately establishes insecticide resistance in pest insects. The bean bug Riptortus pedestris and allied stinkbugs harbor mutualistic gut symbiotic bacteria of the genus Burkholderia, which are acquired by nymphal insects from environmental soil every generation. In agricultural fields, fenitrothion-degrading Burkolderia strains are present at very low densities. We demonstrated that the fenitrothion-degrading Burkholderia strains establish a specific and beneficial symbiosis with the stinkbugs and confer a resistance of the host insects against fenitrothion. Experimental applications of fenitrothion to field soils drastically enriched fenitrothion-degrading bacteria from undetectable levels to >80% of total culturable bacterial counts in the field soils, and >90% of stinkbugs reared with the enriched soil established symbiosis with fenitrothion-degrading Burkholderia. In a Japanese island where fenitrothion has been constantly applied to sugarcane fields, we identified a stinkbug population wherein the insects live on sugarcane and ≈8% of them host fenitrothion-degrading Burkholderia. Our finding suggests the possibility that the symbiont-mediated insecticide resistance may develop even in the absence of pest insects, quickly establish within a single insect generation, and potentially move around horizontally between different pest insects and other organisms.
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14
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Chino-Flores C, Dantán-González E, Vázquez-Ramos A, Tinoco-Valencia R, Díaz-Méndez R, Sánchez-Salinas E, Castrejón-Godínez ML, Ramos-Quintana F, Ortiz-Hernández ML. Isolation of the opdE gene that encodes for a new hydrolase of Enterobacter sp. capable of degrading organophosphorus pesticides. Biodegradation 2011; 23:387-97. [PMID: 22065283 DOI: 10.1007/s10532-011-9517-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2011] [Accepted: 10/25/2011] [Indexed: 11/29/2022]
Abstract
Microbial enzymes that can hydrolyze organophosphorus compounds have been isolated, identified and characterized from different microbial species in order to use them in biodegradation of organophosphorus compounds. We isolated a bacterial strain Cons002 from an agricultural soil bacterial consortium, which can hydrolyze methyl-parathion (MP) and other organophosphate pesticides. HPLC analysis showed that strain Cons002 is capable of degrading pesticides MP, parathion and phorate. Pulsed-field gel electrophoresis and 16S rRNA amplification were performed for strain characterization and identification, respectively, showing that the strain Cons002 is related to the genus Enterobacter sp. which has a single chromosome of 4.6 Mb and has no plasmids. Genomic library was constructed from DNA of Enterobacter sp. Cons002. A gene called opdE (Organophosphate Degradation from Enterobacter) consists of 753 bp and encodes a protein of 25 kDa, which was isolated using activity methods. This gene opdE had no similarity to any genes reported to degrade organophosphates. When kanamycin-resistance cassette was placed in the gene opdE, hydrolase activity was suppressed and Enterobacter sp. Cons002 had no growth with MP as a nutrients source.
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Affiliation(s)
- Concepción Chino-Flores
- Laboratorio de Investigaciones Ambientales, Centro de Investigación en Biotecnología, Universidad Autónoma del Estado Morelos, Av. Universidad 1001, Col. Chamilpa, C.P. 62209, Cuernavaca, Morelos, Mexico
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15
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Tago K, Sekiya E, Kiho A, Katsuyama C, Hoshito Y, Yamada N, Hirano K, Sawada H, Hayatsu M. Diversity of Fenitrothion-Degrading Bacteria in Soils from Distant Geographical Areas. Microbes Environ 2006. [DOI: 10.1264/jsme2.21.58] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Kanako Tago
- United Graduate School of Agricultural Science, Gifu University
| | - Emi Sekiya
- Faculty of Agriculture, Shizuoka University
| | | | | | | | - Naoki Yamada
- United Graduate School of Agricultural Science, Gifu University
| | - Kiyoshi Hirano
- National Agricultural Research Center for Kyushu Okinawa Region
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