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Samal S, Mohanty RP, Mohanty PS, Giri MK, Pati S, Das B. Implications of biosensors and nanobiosensors for the eco-friendly detection of public health and agro-based insecticides: A comprehensive review. Heliyon 2023; 9:e15848. [PMID: 37206035 PMCID: PMC10189192 DOI: 10.1016/j.heliyon.2023.e15848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 03/21/2023] [Accepted: 04/25/2023] [Indexed: 05/21/2023] Open
Abstract
Biosensors, in particular nanobiosensors, have brought a paradigm shift in the detection approaches involved in healthcare, agricultural, and industrial sectors. In accordance with the global expansion in the world population, there has been an increase in the application of specific insecticides for maintaining public health and enhancing agriculture, such as organophosphates, organochlorines, pyrethroids, and carbamates. This has led to the contamination of ground water, besides increasing the chances of biomagnification as most of these insecticides are non-biodegradable. Hence, conventional and more advanced approaches are being devised for the routine monitoring of such insecticides in the environment. This review walks through the implications of biosensors and nanobiosensors, which could offer a wide range of benefits for the detection of the insecticides, quantifying their toxicity status, and versatility in application. Unique eco-friendly nanobiosensors such as microcantilevers, carbon nanotubes, 3D printing organic materials and nylon nano-compounds are some advanced tools that are being employed for the detection of specific insecticides under different conditions. Furthermore, in order to implement a smart agriculture system, nanobiosensors could be integrated into mobile apps and GPS systems for controlling farming in remote areas, which would greatly assist the farmer remotely for crop improvement and maintenance. This review discusses about such tools along with more advanced and eco-friendly approaches that are on the verge of development and could offer a promising alternative for analyte detection in different domains.
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Affiliation(s)
- Sagnika Samal
- School of Biotechnology, Kalinga Institute of Industrial Technology, KIIT Deemed to Be University, Bhubaneswar, Odisha, 751017, India
| | - Rashmi Priya Mohanty
- School of Biotechnology, Kalinga Institute of Industrial Technology, KIIT Deemed to Be University, Bhubaneswar, Odisha, 751017, India
| | - Priti Sundar Mohanty
- School of Biotechnology, Kalinga Institute of Industrial Technology, KIIT Deemed to Be University, Bhubaneswar, Odisha, 751017, India
- School of Chemical Technology, Kalinga Institute of Industrial Technology, KIIT Deemed to Be University, Bhubaneswar, Odisha, 751017, India
| | - Mrunmay Kumar Giri
- School of Biotechnology, Kalinga Institute of Industrial Technology, KIIT Deemed to Be University, Bhubaneswar, Odisha, 751017, India
| | - Sanghamitra Pati
- ICMR-Regional Medical Research Centre, Bhubaneswar, Odisha, 751024, India
- Corresponding author.
| | - Biswadeep Das
- School of Biotechnology, Kalinga Institute of Industrial Technology, KIIT Deemed to Be University, Bhubaneswar, Odisha, 751017, India
- Corresponding author.
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He J, Zhang K, Wang L, Du Y, Yang Y, Yuan C. Highly efficient degradation of cypermethrin by a co-culture of Rhodococcus sp. JQ-L and Comamonas sp. A-3. Front Microbiol 2022; 13:1003820. [PMID: 36188009 PMCID: PMC9522905 DOI: 10.3389/fmicb.2022.1003820] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 08/19/2022] [Indexed: 11/13/2022] Open
Abstract
Cypermethrin is an important synthetic pyrethroid pesticide that widely used to control pests in agriculture. However, extensive use has caused its residue and the metabolite 3-phenoxybenzoic acid (3-PBA) to seriously pollute the environments and agricultural products. In this study, a highly efficient cypermethrin-degrading bacterial consortium was acclimated from long-term pyrethroid-contaminated soil. Two strains, designated JQ-L and A-3, were screened from the consortium, and identified as Rhodococcus sp. and Comamonas sp., respectively. Strain JQ-L transformed 100 mg/L of cypermethrin to 3-PBA within 60 h of incubation; however, 3-PBA could not be further degraded by the strain. Strain A-3 utilized 3-PBA as sole carbon for growth, and completely degraded 100 mg/L of 3-PBA within 15 h of incubation. Co-culture of JQ-L and A-3 completely degraded 100 mg/L of cypermethrin within 24 h of incubation. Furthermore, a complete catabolic pathway of cypermethrin and the metabolite 3-PBA by the co-culture was proposed. This study provided a promising strategy for efficient elimination of cypermethrin residue-contaminated environments and agricultural products.
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Affiliation(s)
- Jian He
- College of Rural Revitalization, Jiangsu Open University, Nanjing, China
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Kaiyun Zhang
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Lin Wang
- College of Rural Revitalization, Jiangsu Open University, Nanjing, China
| | - Yingchun Du
- College of Rural Revitalization, Jiangsu Open University, Nanjing, China
| | - Ying Yang
- College of Rural Revitalization, Jiangsu Open University, Nanjing, China
| | - Cansheng Yuan
- College of Rural Revitalization, Jiangsu Open University, Nanjing, China
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He J, Zhu M, Chen X, Shi S, Tang F, Gu S. Multivalent nanobody-biotin amplified enzyme-linked immunosorbent assay for the environmental detection of 3-phenoxybenzoic acid. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:5247-5253. [PMID: 34708839 DOI: 10.1039/d1ay01491a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The 3-phenoxybenzoic acid (3-PBA) metabolized from pyrethroids is more toxic and has a longer half-life to degradation in a natural environment compared to its parent compounds. Few reports have focused on the environmental detection of 3-PBA. In this study, anti-3-PBA nanobodies in trivalent form (Nb3) were biotinylated. A sensitive enzyme-linked immunosorbent assay (ELISA) based on the combination of Nb3-biotin and streptavidin-horseradish peroxidase (SA-HRP) was developed for the environmental detection of 3-PBA. After optimization, the ELISA showed a half-maximum signal inhibition concentration (IC50) of 0.39 ng mL-1 in phosphate-buffered saline (pH 7, 20% MeOH) and a limit of detection (LOD) of 0.02 ng mL-1, which was more sensitive than the parent Nb-based ELISAs with IC50 and LOD values of 1.4 ng mL-1 and 0.1 ng mL-1, respectively. The Nb3-biotin amplified assay showed negligible cross-reactivity with its structural analogues (<0.1%). The average recoveries of 3-PBA from spiked canal water and soil samples ranged from 86.54-109.25% at 0.5-50 ng mL-1 (or ng g-1 (dw)). The 3-PBA residues in canal water and soil samples determined using this assay were in the ranges <LOD-1.46 ng mL-1 and <LOD-4.35 ng g-1 (dw), respectively, which correlated well with the results obtained using liquid chromatography tandem mass spectrometry. The results suggest that multivalent Nb-biotin-SA amplified ELISA is a promising tool for the routine environmental screening of 3-PBA.
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Affiliation(s)
- Jinxin He
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
| | - Mi Zhu
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
| | - Xiaorong Chen
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
| | - Shengrui Shi
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
| | - Fang Tang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
| | - Shaopeng Gu
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
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Danek M, Plonka J, Barchanska H. Metabolic profiles and non-targeted LC-MS/MS approach as a complementary tool to targeted analysis in assessment of plant exposure to pesticides. Food Chem 2021; 356:129680. [PMID: 33819787 DOI: 10.1016/j.foodchem.2021.129680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 03/02/2021] [Accepted: 03/19/2021] [Indexed: 10/21/2022]
Abstract
Liquid chromatography coupled with tandem mass spectrometry was employed for the detection of pesticides (thiamethoxam, lambda-cyhalothrin, deltamethrin, and metalaxyl) and their metabolites in Raphanus sativus var. longipinnatus exposed to these compounds under experimental conditions. Metalaxyl (0.008 mg/kg), metalaxyl acid (0.009 mg/kg), and (+)-trans-chrysanthemic acid (0.098 mg/kg) were identified in the plants exposed to the individual pesticides and their metabolites. Non-targeted analysis revealed the presence of thiamethoxam, lambda-cyhalothrin, and deltamethrin metabolites in plants exposed to these substances, despite the fact that the pesticide concentrations were below the analytical method's limit of quantification (0.005-0.006 mg/kg). Based on the non-targeted screening, non-specific (leucine and tyramine) and specific (epinephrine, dopamine, tryptamine, and serotonin) markers of plant exposure to the mentioned stress-inducing compounds were detected. These findings prove that non-targeted analysis is an indispensable tool for determining plants' exposure to pesticides, even when the parent compound has been completely metabolized.
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Affiliation(s)
- Magdalena Danek
- Department of Inorganic Chemistry, Analytical Chemistry and Electrochemistry, Faculty of Chemistry, Silesian University of Technology, B. Krzywoustego 6 St., 44-100 Gliwice, Poland.
| | - Joanna Plonka
- Department of Inorganic Chemistry, Analytical Chemistry and Electrochemistry, Faculty of Chemistry, Silesian University of Technology, B. Krzywoustego 6 St., 44-100 Gliwice, Poland
| | - Hanna Barchanska
- Department of Inorganic Chemistry, Analytical Chemistry and Electrochemistry, Faculty of Chemistry, Silesian University of Technology, B. Krzywoustego 6 St., 44-100 Gliwice, Poland
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Yao J, Wang Z, Guo L, Xu X, Liu L, Xu L, Song S, Xu C, Kuang H. Advances in immunoassays for organophosphorus and pyrethroid pesticides. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116022] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Kaur P, Balomajumder C. Effective mycoremediation coupled with bioaugmentation studies: An advanced study on newly isolated Aspergillus sp. in Type-II pyrethroid-contaminated soil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 261:114073. [PMID: 32078877 DOI: 10.1016/j.envpol.2020.114073] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 01/14/2020] [Accepted: 01/23/2020] [Indexed: 06/10/2023]
Abstract
The intensive application of type-II pyrethroid worldwide in agricultural and residential practices potentially contributes to soil and water pollution, raising various concerns about environmental and public health. In the present study, robust fungus (strain PYR-P2) with high pyrethroids degradation potential was isolated from pesticide-contaminated soil. The strain was identified based on morphology and molecular characteristics, as Aspergillus sp. The screening of the transforming ability of strain PYR-P2 was evaluated in minimal salt media (MSM), where the fungus utilized up to 500 mg L-1 of pyrethroid mixture (cypermethrin (CYP), cyfluthrin (CYF), cyhalothrin (CYH)). With this in view, central composite design (CCD) with three independent variables (pH, temperature, and initial concentration) was employed to identify the optimal conditions for achieving maximum pyrethroid removal. Under optimal conditions, strain PYR-P2 was implemented for the bioaugmentation studies in natural and sterile soil (NS/SS) systems spiked with pyrethroid (single and mixture) at a concentration of 100 mg kg-1. The highest pyrethroid removal percentages were observed in fungally augmented NS, accompanied by a decrease in pyrethroid half-life (t1/2). Herein, the observed half-life (t1/2) of pyrethroids in the fungally augmented NS varied between 1.48 and 2.69 d, with equally good values recorded in SS as 1.65-3.10 d. Taken together, the mycoremediation study employing fungal (strain PYR-P2) augmentation under optimized conditions represents an efficient strategy to restore pyrethroid-contaminated soil.
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Affiliation(s)
- Parminder Kaur
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India.
| | - Chandrajit Balomajumder
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
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Zhan H, Huang Y, Lin Z, Bhatt P, Chen S. New insights into the microbial degradation and catalytic mechanism of synthetic pyrethroids. ENVIRONMENTAL RESEARCH 2020; 182:109138. [PMID: 32069744 DOI: 10.1016/j.envres.2020.109138] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 12/23/2019] [Accepted: 01/13/2020] [Indexed: 06/10/2023]
Abstract
The significant applications of pyrethroid insecticides in agro-ecosystem and household environments have raised serious environmental concerns. Environmental bioremediation has emerged as an effective and eco-friendly approach to remove or neutralize hazardous compounds. Bioaugmentation accelerates pyrethroid degradation in liquid cultures and soil. Pyrethroid-degrading microorganisms have been extensively studied to cope with pyrethroid residues. Microorganisms primarily hydrolyze the ester bonds of pyrethroids, and their degradation pathways have been elaborated. The functional genes and enzymes involved in microbial degradation have also been screened and studied. Carboxylesterase plays a key role in pyrethroid degradation by cleaving its carboxylester linkage. The catalytic mechanism is dependent on a specific catalytic triad, consisting of three amino acid residues (glutamine, histidine, and serine) within the active site of the carboxylesterase enzyme. Pyrethroid-degrading strains and enzymes have proven to be effective for the bioremediation of pyrethroid-contaminated environments. In this review, we have summarized newly isolated pyrethroid-degrading strains and proposed the degradation pathways along with key functional genes/enzymes. To develop an efficient bioremediation strategy, pyrethroid-degrading microorganisms should be comprehensively explored.
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Affiliation(s)
- Hui Zhan
- 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, PR China; Guangdong Laboratory of Lingnan Modern Agriculture, Guangzhou, 510642, PR 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, PR China; Guangdong Laboratory of Lingnan Modern Agriculture, Guangzhou, 510642, PR China
| | - Ziqiu Lin
- 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, PR China; Guangdong Laboratory of Lingnan Modern Agriculture, Guangzhou, 510642, PR China
| | - Pankaj Bhatt
- 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, PR China; Guangdong Laboratory of Lingnan Modern Agriculture, Guangzhou, 510642, PR China
| | - 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, PR China; Guangdong Laboratory of Lingnan Modern Agriculture, Guangzhou, 510642, PR China.
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El-Moghazy AY, Huo J, Amaly N, Vasylieva N, Hammock BD, Sun G. An Innovative Nanobody-Based Electrochemical Immunosensor Using Decorated Nylon Nanofibers for Point-of-Care Monitoring of Human Exposure to Pyrethroid Insecticides. ACS APPLIED MATERIALS & INTERFACES 2020; 12:6159-6168. [PMID: 31927905 PMCID: PMC7799635 DOI: 10.1021/acsami.9b16193] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
A novel ultrasensitive nanobody-based electrochemical immunoassay was prepared for assessing human exposure to pyrethroid insecticides. 3-Phenoxybenzoic acid (3-PBA) is a common human urinary metabolite for numerous pyrethroids, which broadly served as a biomarker for following the human exposure to this pesticide group. The 3-PBA detection was via a direct competition for binding to alkaline phosphatase-embedded nanobodies between free 3-PBA and a 3-PBA-bovine serum albumin conjugate covalently immobilized onto citric acid-decorated nylon nanofibers, which were incorporated on a screen-printed electrode (SPE). Electrochemical impedance spectroscopy (EIS) was utilized to support the advantage of the employment of nanofibrous membranes and the success of the immunosensor assembly. The coupling between the nanofiber and nanobody technologies provided an ultrasensitive and selective immunosensor for 3-PBA detection in the range of 0.8 to 1000 pg mL-1 with a detection limit of 0.64 pg mL-1. Moreover, when the test for 3-PBA was applied to real samples, the established immunosensor proved to be a viable alternative to the conventional methods for 3-PBA detection in human urine even without sample cleanup. It showed excellent properties and stability over time.
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Affiliation(s)
- Ahmed Y. El-Moghazy
- Department of Biological and Agricultural Engineering, University of California, Davis, CA 95616, USA
- Polymeric Materials Research Department, Advanced Technology and New Materials Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City 21934, Alexandria, Egypt
| | - Jingqian Huo
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616, United States
- College of Plant Protection, Agricultural University of Hebei, Baoding 071001, P. R. China
| | - Noha Amaly
- Department of Biological and Agricultural Engineering, University of California, Davis, CA 95616, USA
- Polymeric Materials Research Department, Advanced Technology and New Materials Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City 21934, Alexandria, Egypt
| | - Natalia Vasylieva
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616, United States
| | - Bruce D. Hammock
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616, United States
| | - Gang Sun
- Department of Biological and Agricultural Engineering, University of California, Davis, CA 95616, USA
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Murcia-Morales M, Cutillas V, Fernández-Alba AR. Supercritical Fluid Chromatography and Gas Chromatography Coupled to Tandem Mass Spectrometry for the Analysis of Pyrethroids in Vegetable Matrices: A Comparative Study. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:12626-12632. [PMID: 31062971 DOI: 10.1021/acs.jafc.9b00732] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This study describes a comprehensive comparison between supercritical fluid chromatography (SFC) and gas chromatography (GC) coupled to mass spectrometry for the analysis of pyrethroids in vegetable matrices. The ionization process used was electrospray ionization (ESI) in SFC and electron ionization in GC. In general, liquid chromatography coupled to mass spectrometry with ESI sources provides poor results for pyrethroid detection, as described in previous literature. A total of 14 pyrethroids were selected, together with 6 representative matrices. The differences in chromatographic separation and ionization process were assessed. Similar results were obtained in terms of sensitivity (limits of quantification close to 2 μg/kg, injecting the same amount of sample), matrix effect, and linearity. A total of 17 real samples were analyzed by both systems, obtaining similar results. These data suggest that SFC offers a suitable alternative to GC in the analysis of pyrethroids and allows for their inclusion in a wider multiresidue method.
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Affiliation(s)
- María Murcia-Morales
- Agrifood Campus of International Excellence (ceiA3), European Union Reference Laboratory for Pesticide Residues in Fruit and Vegetables, Department of Hydrogeology and Analytical Chemistry , University of Almería , Carretera Sacramento s/n , La Cañada de San Urbano, 04120 Almería , Spain
| | - Víctor Cutillas
- Agrifood Campus of International Excellence (ceiA3), European Union Reference Laboratory for Pesticide Residues in Fruit and Vegetables, Department of Hydrogeology and Analytical Chemistry , University of Almería , Carretera Sacramento s/n , La Cañada de San Urbano, 04120 Almería , Spain
| | - Amadeo R Fernández-Alba
- Agrifood Campus of International Excellence (ceiA3), European Union Reference Laboratory for Pesticide Residues in Fruit and Vegetables, Department of Hydrogeology and Analytical Chemistry , University of Almería , Carretera Sacramento s/n , La Cañada de San Urbano, 04120 Almería , Spain
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Tang J, Hu Q, Liu B, Lei D, Chen T, Sun Q, Zeng C, Zhang Q. Efficient biodegradation of 3-phenoxybenzoic acid and pyrethroid pesticides by the novel strain Klebsiella pneumoniae BPBA052. Can J Microbiol 2019; 65:795-804. [DOI: 10.1139/cjm-2019-0183] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A novel Klebsiella pneumoniae strain (BPBA052) capable of degrading 3-phenoxybenzoic acid (3-PBA) was isolated from soybean rhizosphere soil. The strain was obtained by screening after enrichment, isolation, and purification using 3-PBA as the sole carbon and energy source. It could degrade 96.37% of 3-PBA (100 mg/L) within 72 h, and its growth and 3-PBA degradation followed kinetics models of logistic growth (XBPBA052 = 0.0883 × e0.0947t / [1 − 0.0792 × (1 − 0.0883 × e0.0947t)]; μm = 0.0947 h–1, X0 = 0.0883, and Xm = 1.1145) and first-order degradation (CBPBA052 = 101.8194 × e–0.0403t, k = 0.0403, t1/2 = 17.22 h), respectively. Based on Box–Behnken response surface analysis, the optimal temperature, pH, and 3-PBA concentration for K. pneumoniae BPBA052 were 35.01 °C, 7.77, and 150 mg/L, respectively. Moreover, pyrethroid pesticides (PPs) (such as β-cypermethrin, permethrin, bifenthrin, deltamethrin, and fenvalerate) and 3-PBA metabolites (including phenol, catechol, and protocatechuate) were efficiently utilized by BPBA052. We propose a novel microbial metabolic pathway for 3-PBA, based on metabolite identification; enzyme-degrading activity; and cloning of the phenol hydroxylase, catechol 1,2-dioxygenase, and protocatechuate 3,4-dioxygenase genes. This study provides a fundamental platform for further studies to reveal the mechanism of biodegradation of 3-BPA and show K. pneumoniae BPBA052 as a potential microbial resource for bioremediation of environments polluted with 3-PBA or PPs.
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Affiliation(s)
- Jie Tang
- Key Laboratory of Food Biotechnology, School of Food and Biotechnology, Xihua University, 610039 Chengdu, Sichuan, P.R. China
- Key Laboratory of Food Biotechnology, School of Food and Biotechnology, Xihua University, 610039 Chengdu, Sichuan, P.R. China
| | - Qiong Hu
- Key Laboratory of Food Biotechnology, School of Food and Biotechnology, Xihua University, 610039 Chengdu, Sichuan, P.R. China
- Key Laboratory of Food Biotechnology, School of Food and Biotechnology, Xihua University, 610039 Chengdu, Sichuan, P.R. China
| | - Bo Liu
- Key Laboratory of Food Biotechnology, School of Food and Biotechnology, Xihua University, 610039 Chengdu, Sichuan, P.R. China
- Key Laboratory of Food Biotechnology, School of Food and Biotechnology, Xihua University, 610039 Chengdu, Sichuan, P.R. China
| | - Dan Lei
- Key Laboratory of Food Biotechnology, School of Food and Biotechnology, Xihua University, 610039 Chengdu, Sichuan, P.R. China
- Key Laboratory of Food Biotechnology, School of Food and Biotechnology, Xihua University, 610039 Chengdu, Sichuan, P.R. China
| | - Tingting Chen
- Key Laboratory of Food Biotechnology, School of Food and Biotechnology, Xihua University, 610039 Chengdu, Sichuan, P.R. China
- Key Laboratory of Food Biotechnology, School of Food and Biotechnology, Xihua University, 610039 Chengdu, Sichuan, P.R. China
| | - Qing Sun
- Key Laboratory of Food Biotechnology, School of Food and Biotechnology, Xihua University, 610039 Chengdu, Sichuan, P.R. China
- Key Laboratory of Food Biotechnology, School of Food and Biotechnology, Xihua University, 610039 Chengdu, Sichuan, P.R. China
| | - Chaoyi Zeng
- Key Laboratory of Food Biotechnology, School of Food and Biotechnology, Xihua University, 610039 Chengdu, Sichuan, P.R. China
- Key Laboratory of Food Biotechnology, School of Food and Biotechnology, Xihua University, 610039 Chengdu, Sichuan, P.R. China
| | - Qing Zhang
- Key Laboratory of Food Biotechnology, School of Food and Biotechnology, Xihua University, 610039 Chengdu, Sichuan, P.R. China
- Key Laboratory of Food Biotechnology, School of Food and Biotechnology, Xihua University, 610039 Chengdu, Sichuan, P.R. China
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Huo J, Li Z, Wan D, Li D, Qi M, Barnych B, Vasylieva N, Zhang J, Hammock BD. Development of a Highly Sensitive Direct Competitive Fluorescence Enzyme Immunoassay Based on a Nanobody-Alkaline Phosphatase Fusion Protein for Detection of 3-Phenoxybenzoic Acid in Urine. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:11284-11290. [PMID: 30293433 PMCID: PMC6442738 DOI: 10.1021/acs.jafc.8b04521] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
3-Phenoxybenzoic acid (3-PBA) is a human urinary metabolite of many pyrethroid insecticides and can be used as a biomarker to monitor human exposure to these pesticides. A rapid and sensitive direct competitive fluorescence enzyme immunoassay (dc-FEIA) for detecting 3-PBA on the basis of a nanobody (Nb)-alkaline phosphatase (AP) fusion protein was developed. The anti-3-PBA Nb-AP fusion protein was expressed and purified. The 50% inhibitory concentration (IC50) and linear range of dc-FEIA were 0.082 and 0.015-0.447 ng/mL, respectively, with a detection limit of 0.011 ng/mL. The IC50 of dc-FEIA was improved by nearly ten times compared with those of one-step and three-step direct competitive enzyme-linked immunosorbent assay (dc-ELISA). Spiked urine samples were detected by both dc-FEIA and liquid chromatography-mass spectrometry (LC-MS), and the results showed good consistency between the two analysis methods, indicating the reliability of dc-FEIA based on the Nb-AP fusion protein for detecting 3-PBA in urine.
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Affiliation(s)
- Jingqian Huo
- College of Plant Protection, Agricultural University of Hebei, Baoding 071001, P. R. China
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
| | - Zhenfeng Li
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
| | - Debin Wan
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
| | - Dongyang Li
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
| | - Meng Qi
- College of Plant Protection, Agricultural University of Hebei, Baoding 071001, P. R. China
| | - Bogdan Barnych
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
| | - Natalia Vasylieva
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
| | - Jinlin Zhang
- College of Plant Protection, Agricultural University of Hebei, Baoding 071001, P. R. China
- Corresponding author (Tel: +86-0312-7528575; Fax: +86-0312-7528575; )
| | - Bruce D. Hammock
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
- Corresponding author (Tel: +86-0312-7528575; Fax: +86-0312-7528575; )
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12
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Tang J, Liu B, Chen TT, Yao K, Zeng L, Zeng CY, Zhang Q. Screening of a beta-cypermethrin-degrading bacterial strain Brevibacillus parabrevis BCP-09 and its biochemical degradation pathway. Biodegradation 2018; 29:525-541. [PMID: 30116919 DOI: 10.1007/s10532-018-9850-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 08/13/2018] [Indexed: 01/14/2023]
Abstract
A novel beta-cypermethrin (Beta-CP)-degrading strain isolated from activated sludge was identified as Brevibacillus parabrevis BCP-09 based on its morphological and physio-biochemical characteristics, and 16S rRNA gene analysis. Strain BCP-09 could effectively degrade Beta-CP at pH 5.0-9.0, 20-40 °C, and 10-500 mg L-1 Beta-CP. Under optimal conditions (pH 7.41, 38.9 °C, 30.9 mg L-1 Beta-CP), 75.87% Beta-CP was degraded within 3 days. Beta-CP degradation (half-life, 33.45 h) and strain BCP-09 growth were respectively described using first-order-kinetic and logistic-kinetic models. Seven metabolites were detected by high-performance liquid chromatography and gas chromatography-mass spectrometry- methyl salicylate, catechol, phthalic acid, salicylic acid, 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic acid, 3-phenoxybenzaldehyde, and 3-phenoxybenzoic acid (3-PBA). The major Beta-CP metabolite, 3-PBA was further degraded into phenol, benzoic acid, and 4-methylhexanoic acid. BCP-09 also degraded aromatic compounds such as phenol, catechol, and protocatechuic acid. Beta-CP appears to be mainly degraded into 3-PBA, which is continuously degraded into smaller benzene or chain compounds. Thus, strain BCP-09 could form a complete degradation system for Beta-CP and might be considered a promising strain for application in the bioremediation of environments and agricultural products polluted by Beta-CP.
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Affiliation(s)
- Jie Tang
- School of Food and Bioengineering, Xihua University, Chengdu, 610039, Sichuan, People's Republic of China.
| | - Bo Liu
- School of Food and Bioengineering, Xihua University, Chengdu, 610039, Sichuan, People's Republic of China
| | - Ting-Ting Chen
- School of Food and Bioengineering, Xihua University, Chengdu, 610039, Sichuan, People's Republic of China
| | - Kai Yao
- Department of Food Engineering, Sichuan University, Chengdu, 610065, Sichuan, People's Republic of China
| | - Lin Zeng
- School of Food and Bioengineering, Xihua University, Chengdu, 610039, Sichuan, People's Republic of China
| | - Chao-Yi Zeng
- School of Food and Bioengineering, Xihua University, Chengdu, 610039, Sichuan, People's Republic of China
| | - Qing Zhang
- School of Food and Bioengineering, Xihua University, Chengdu, 610039, Sichuan, People's Republic of China
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13
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Co-Metabolic Degradation of β-Cypermethrin and 3-Phenoxybenzoic Acid by Co-Culture of Bacillus licheniformis B-1 and Aspergillus oryzae M-4. PLoS One 2016; 11:e0166796. [PMID: 27898684 PMCID: PMC5127528 DOI: 10.1371/journal.pone.0166796] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 11/03/2016] [Indexed: 01/29/2023] Open
Abstract
The degradation efficiency of organic contaminants and their associated metabolites by co-culture of microbes is mainly limited by toxic intermediates from co-metabolic degradation. In this study, we investigated the degradation of β-cypermethrin (β-CY) and 3-phenoxybenzoic acid (3-PBA) by co-culture of Bacillus licheniformis B-1 and Aspergillus oryzae M-4, as well as the influences of β-CY and 3-PBA metabolites on their degradation and the growth of strains B-1 and M-4. Our results indicated that 100 mg/L β-CY was degraded by 78.85%, and 3-PBA concentration was 0.05 mg/L after 72 h. Compared with using only strain B-1, the half-life (t1/2) of β-CY by using the two strains together was shortened from 84.53 h to 38.54 h, and the yield coefficient of 3-PBA was decreased from 0.846 to 0.001. At 100 mg/L of 3-PBA and gallic acid, β-CY and 3-PBA degradation were only 17.68% and 40.45%, respectively. As the toxic intermediate derived from co-metabolic degradation of β-CY by strain B-1, 3-PBA was efficiently degraded by strain M-4, and gallic acid, as the toxic intermediate from co-metabolic degradation of 3-PBA by strain M-4, was efficiently degraded by strain B-1. These results provided a promising approach for efficient biodegradation of β-CY and 3-PBA.
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14
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Fang C, Wei C, Xu M, Yuan Y, Gu R, Yao J. Ni@Au nanoparticles for surface enhanced Raman spectroscopy based ultrasensitive magnetic immunoassay on aflatoxin B1. RSC Adv 2016. [DOI: 10.1039/c6ra09397c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
A facile approach for the fabrication of Ni@Au magnetic nanoparticles was developed as the immune substrates for the competitive magnetic immunoassay. The approach was used for quasi-quantitatively detection on the trace residue of AFB1in foods.
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Affiliation(s)
- Congwei Fang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
| | - Chao Wei
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
| | - Minmin Xu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
| | - Yaxian Yuan
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
| | - Renao Gu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
| | - Jianlin Yao
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
- China
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15
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Zhao J, Chi Y, Liu F, Jia D, Yao K. Effects of Two Surfactants and Beta-Cyclodextrin on Beta-Cypermethrin Degradation by Bacillus licheniformis B-1. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:10729-10735. [PMID: 26615963 DOI: 10.1021/acs.jafc.5b04485] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The biodegradation efficiency of beta-cypermethrin (β-CY) is low especially at high concentrations mainly due to poor contact between this hydrophobic pesticide and microbial cells. In this study, the effects of two biodegradable surfactants (Tween-80 and Brij-35) and β-cyclodextrin (β-CD) on the growth and cell surface hydrophobicity (CSH) of Bacillus licheniformis B-1 were studied. Furthermore, their effects on the solubility, biosorption, and degradation of β-CY were investigated. The results showed that Tween-80 could slightly promote the growth of the strain while Brij-35 and β-CD exhibited little effect on its growth. The CSH of strain B-1 and the solubility of β-CY were obviously changed by using Tween-80 and Brij-35. The surfactants and β-CD could enhance β-CY biosorption and degradation by the strain, and the highest degradation was obtained in the presence of Brij-35. When the surfactant or β-CD concentration was 2.4 g/L, the degradation rate of β-CY in Brij-35, Tween-80, and β-CD treatments was 89.4%, 50.5%, and 48.1%, respectively. The half-life of β-CY by using Brij-35 was shortened by 69.1 h. Beta-CY content in the soil with both strain B-1 and Brij-35 decreased from 22.29 mg/kg to 4.41 mg/kg after incubation for 22 d. This work can provide a promising approach for the efficient degradation of pyrethroid pesticides by microorganisms.
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Affiliation(s)
- Jiayuan Zhao
- College of Light Industry, Textile & Food Engineering, Sichuan University , 610065, Chengdu, Sichuan, P. R. China
| | - Yuanlong Chi
- College of Light Industry, Textile & Food Engineering, Sichuan University , 610065, Chengdu, Sichuan, P. R. China
| | - Fangfang Liu
- College of Light Industry, Textile & Food Engineering, Sichuan University , 610065, Chengdu, Sichuan, P. R. China
| | - Dongying Jia
- College of Light Industry, Textile & Food Engineering, Sichuan University , 610065, Chengdu, Sichuan, P. R. China
| | - Kai Yao
- College of Light Industry, Textile & Food Engineering, Sichuan University , 610065, Chengdu, Sichuan, P. R. China
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Deng W, Lin D, Yao K, Yuan H, Wang Z, Li J, Zou L, Han X, Zhou K, He L, Hu X, Liu S. Characterization of a novel β-cypermethrin-degrading Aspergillus niger YAT strain and the biochemical degradation pathway of β-cypermethrin. Appl Microbiol Biotechnol 2015; 99:8187-98. [PMID: 26022858 DOI: 10.1007/s00253-015-6690-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 05/08/2015] [Accepted: 05/12/2015] [Indexed: 12/23/2022]
Abstract
Aspergillus niger YAT strain was obtained from Chinese brick tea (Collection number: CGMCC 10,568) and identified on the basis of morphological characteristics and internal transcribed spacer (ITS) sequence. The strain could degrade 54.83 % of β-cypermethrin (β-CY; 50 mg L(-1)) in 7 days and 100 % of 3-phenoxybenzoic acid (3-PBA; 100 mg L(-1)) in 22 h. The half-lives of β-CY and 3-PBA range from 3.573 to 11.748 days and from 5.635 to 12.160 h, respectively. The degradation of β-CY and 3-PBA was further described using first-order kinetic models. The pathway and mechanism of β-CY degraded by YAT were investigated by analyzing the degraded metabolites through high-performance liquid chromatography (HPLC) and liquid chromatography-mass spectrometry (LC-MS). Relevant enzymatic activities and substrate utilization were also investigated. β-CY degradation products were analyzed. Results indicated that YAT strain transformed β-CY into 3-PBA. 3-PBA was then gradually transformed into permethric acid, protocatechuic acid, 3-hydroxy-5-phenoxy benzoic acid, gallic acid, and phenol gradually. The YAT strain can also effectively degrade these metabolites. The results indicated that YAT strain has potential applications in bioremediation of pyrethroid insecticide (PI)-contaminated environments and fermented food.
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Affiliation(s)
- Weiqin Deng
- College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan, 625014, People's Republic of China
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Liu Y, Wu A, Hu J, Lin M, Wen M, Zhang X, Xu C, Hu X, Zhong J, Jiao L, Xie Y, Zhang C, Yu X, Liang Y, Liu X. Detection of 3-phenoxybenzoic acid in river water with a colloidal gold-based lateral flow immunoassay. Anal Biochem 2015; 483:7-11. [PMID: 25957127 DOI: 10.1016/j.ab.2015.04.022] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 04/21/2015] [Accepted: 04/22/2015] [Indexed: 11/28/2022]
Abstract
3-Phenoxybenzoic acid (3-PBA) is a general metabolite of synthetic pyrethroids. It could be used as a generic biomarker for multiple pyrethroids exposure for human or pyrethroid residues in the environment. In this study, monoclonal antibodies (mAbs) against 3-PBA were developed by using PBA-bovine serum albumin (BSA) as an immunogen. In the competitive enzyme-linked immunosorbent assay (ELISA) format, the I50 and I10 values of purified mAbs were 0.63 and 0.13 μg/ml, respectively, with a dynamic range between 0.19 and 2.04 μg/ml. Then, the colloidal gold (CG)-based lateral flow immunoassay was established based on the mAbs. The working concentration of coating antigen and CG-labeled antibodies and the blocking effects were investigated to get optimal assay performance. The cutoff value for the assay was 1 μg/ml 3-PBA, and the detection time was within 10 min. A total of 40 river water samples were spiked with 3-PBA at different levels and determined by the lateral flow immunoassay without any sample pretreatments. The negative false rate was 2.5%, and no positive false results were observed at these levels. This lateral flow immunoassay has the potential to be an on-site screening method for monitoring 3-PBA or pyrethroid residues in environmental samples.
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Affiliation(s)
- Yuan Liu
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Food Quality and Safety of Jiangsu Province, Nanjing 210014, China
| | - Aihua Wu
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Food Quality and Safety of Jiangsu Province, Nanjing 210014, China
| | - Jing Hu
- Key Laboratory of Food Quality and Safety of Jiangsu Province, Nanjing 210014, China
| | - Manman Lin
- Key Laboratory of Food Quality and Safety of Jiangsu Province, Nanjing 210014, China
| | - Mengtang Wen
- Key Laboratory of Food Quality and Safety of Jiangsu Province, Nanjing 210014, China
| | - Xiao Zhang
- Key Laboratory of Food Quality and Safety of Jiangsu Province, Nanjing 210014, China
| | - Chongxin Xu
- Key Laboratory of Food Quality and Safety of Jiangsu Province, Nanjing 210014, China
| | - Xiaodan Hu
- Key Laboratory of Food Quality and Safety of Jiangsu Province, Nanjing 210014, China
| | - Jianfeng Zhong
- Key Laboratory of Food Quality and Safety of Jiangsu Province, Nanjing 210014, China
| | - Lingxia Jiao
- Key Laboratory of Food Quality and Safety of Jiangsu Province, Nanjing 210014, China
| | - Yajing Xie
- Key Laboratory of Food Quality and Safety of Jiangsu Province, Nanjing 210014, China
| | - Cunzhen Zhang
- Key Laboratory of Food Quality and Safety of Jiangsu Province, Nanjing 210014, China
| | - Xiangyang Yu
- Key Laboratory of Food Quality and Safety of Jiangsu Province, Nanjing 210014, China
| | - Ying Liang
- Key Laboratory of Food Quality and Safety of Jiangsu Province, Nanjing 210014, China
| | - Xianjin Liu
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Food Quality and Safety of Jiangsu Province, Nanjing 210014, China.
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Pathway and kinetics of cyhalothrin biodegradation by Bacillus thuringiensis strain ZS-19. Sci Rep 2015; 5:8784. [PMID: 25740758 PMCID: PMC4350101 DOI: 10.1038/srep08784] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Accepted: 02/04/2015] [Indexed: 11/22/2022] Open
Abstract
Cyhalothrin is a common environmental pollutant which poses increased risks to non-target organisms including human beings. This study reported for the first time a newly isolated strain, Bacillus thuringiensis ZS-19 completely degraded cyhalothrin in minimal medium within 72 h. The bacterium transformed cyhalothrin by cleavage of both the ester linkage and diaryl bond to yield six intermediate products. Moreover, a novel degradation pathway of cyhalothrin in strain ZS-19 was proposed on the basis of the identified metabolites. In addition to degradation of cyhalothrin, this strain was found to be capable of degrading 3-phenoxybenzoic acid, a common metabolite of pyrethroids. Furthermore, strain ZS-19 participated in efficient degradation of a wide range of pyrethroids including cyhalothrin, fenpropathrinn, deltamethrin, beta-cypermethrin, cyfluthrin and bifenthrin. Taken together, our results provide insights into the mechanism of cyhalothrin degradation and also highlight the promising potentials of B.thuringiensis ZS-19 in bioremediation of pyrethroid-contaminated environment. This is the first report of (i) degradation of cyhalothrin and other pyrethroids by B.thuringiensis, (ii) identification of 3-phenoxyphenyl acetonitrile and N-(2-isoproxy-phenyl)-4-phenoxy-benzamide as the metabolites in the degradation pathway of pyrethroids, and (iii) a pathway of degradation of cyhalothrin by cleavage of both the ester linkage and diaryl bond in a microorganism.
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Liu F, Chi Y, Wu S, Jia D, Yao K. Simultaneous degradation of cypermethrin and its metabolite, 3-phenoxybenzoic acid, by the cooperation of Bacillus licheniformis B-1 and sphingomonas sp. SC-1. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:8256-62. [PMID: 25068244 DOI: 10.1021/jf502835n] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Cypermethrin (CY) and its metabolite, 3-phenoxybenzoic acid (3-PBA), generally coexist in agricultural soil and cause a toxic effect on the human body. In this study, CY and its metabolite 3-PBA were simultaneously degraded by the cooperation of Bacillus licheniformis B-1 and Sphingomonas sp. SC-1. The effects of the inoculation proportion and inoculation method of these two strains, cultivation time, and initial CY content on the degradation of CY and 3-PBA were investigated. Furthermore, the degradation of CY and 3-PBA in soil environment by using the cooperation of these two strains was also determined. When the inoculation proportion of the biomass of strain B-1/strain SC-1 was 3.3:6.7, strain B-1 was inoculated first, and strain SC-1 was inoculated after 24 h of cultivation, 75.60% CY (100 mg L(-1)) was degraded at 72 h and the 3-PBA content was 10.31 mg L(-1). Compared with those by using only strain B-1, the half-life of CY by using these two strains was shortened from 71.90 to 35.71 h, and the yield coefficient of 3-PBA was decreased from 0.8938 to 0.2651. As in the soil environment, the CY content by using these two strains within a period of 25 days declined from 22.71 to 5.33 mg kg(-1) and the 3-PBA content was 1.84 mg kg(-1). Compared with those by using only strain B-1, the half-life of CY by using these two strains was shortened from 19.86 to 11.34 days and the yield coefficient of 3-PBA was decreased from 0.5302 to 0.2056. This work could develop a promising approach for the simultaneous degradation of CY and its metabolite 3-PBA in agricultural soil.
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Affiliation(s)
- Fangfang Liu
- College of Light Industry and Food Engineering, Sichuan University , 610065 Chengdu, Sichuan, People's Republic of China
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20
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Chen S, Chang C, Deng Y, An S, Dong YH, Zhou J, Hu M, Zhong G, Zhang LH. Fenpropathrin biodegradation pathway in Bacillus sp. DG-02 and its potential for bioremediation of pyrethroid-contaminated soils. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:2147-2157. [PMID: 24576059 DOI: 10.1021/jf404908j] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The widely used insecticide fenpropathrin in agriculture has become a public concern because of its heavy environmental contamination and toxic effects on mammals, yet little is known about the kinetic and metabolic behaviors of this pesticide. This study reports the degradation kinetics and metabolic pathway of fenpropathrin in Bacillus sp. DG-02, previously isolated from the pyrethroid-manufacturing wastewater treatment system. Up to 93.3% of 50 mg L(-1) fenpropathrin was degraded by Bacillus sp. DG-02 within 72 h, and the degradation rate parameters qmax, Ks, and Ki were determined to be 0.05 h(-1), 9.0 mg L(-1), and 694.8 mg L(-1), respectively. Analysis of the degradation products by gas chromatography-mass spectrometry led to identification of seven metabolites of fenpropathrin, which suggest that fenpropathrin could be degraded first by cleavage of its carboxylester linkage and diaryl bond, followed by degradation of the aromatic ring and subsequent metabolism. In addition to degradation of fenpropathrin, this strain was also found to be capable of degrading a wide range of synthetic pyrethroids including deltamethrin, λ-cyhalothrin, β-cypermethrin, β-cyfluthrin, bifenthrin, and permethrin, which are also widely used insecticides with environmental contamination problems with the degradation process following the first-order kinetic model. Bioaugmentation of fenpropathrin-contaminated soils with strain DG-02 significantly enhanced the disappearance rate of fenpropathrin, and its half-life was sharply reduced in the soils. Taken together, these results depict the biodegradation mechanisms of fenpropathrin and also highlight the promising potentials of Bacillus sp. DG-02 in bioremediation of pyrethroid-contaminated soils.
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Affiliation(s)
- Shaohua Chen
- College of Natural Resources and Environment, South China Agricultural University , Guangzhou 510642, People's Republic of China
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Determination of Pyrethroid Insecticides in Environmental Samples by GC–MS and GC–MS–MS. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/b978-0-444-62623-3.00009-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Abstract
3-Phenoxybenzoic acid (3-PBA) is of great environmental concern with regards to endocrine disrupting activity and widespread occurrence in water and soil, yet little is known about microbial degradation in contaminated regions. We report here that a new bacterial strain isolated from soil, designated DG-02, was shown to degrade 95.6% of 50 mg·L−1 3-PBA within 72 h in mineral salt medium (MSM). Strain DG-02 was identified as Bacillus sp. based on the morphology, physio-biochemical tests and 16S rRNA sequence. The optimum conditions for 3-PBA degradation were determined to be 30.9°C and pH 7.7 using response surface methodology (RSM). The isolate converted 3-PBA to produce 3-(2-methoxyphenoxy) benzoic acid, protocatechuate, phenol, and 3,4-dihydroxy phenol, and subsequently transformed these compounds with a qmax, Ks and Ki of 0.8615 h−1, 626.7842 mg·L−1 and 6.7586 mg·L−1, respectively. A novel microbial metabolic pathway for 3-PBA was proposed on the basis of these metabolites. Inoculation of strain DG-02 resulted in a higher degradation rate on 3-PBA than that observed in the non-inoculated soil. Moreover, the degradation process followed the first-order kinetics, and the half-life (t1/2) for 3-PBA was greatly reduced as compared to the non-inoculated control. This study highlights an important potential application of strain DG-02 for the in situ bioremediation of 3-PBA contaminated environments.
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