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Lee H, An G, Park J, Lim W, Song G. Molinate induces organ defects by promoting apoptosis, inflammation, and endoplasmic reticulum stress during the developmental stage of zebrafish. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 885:163768. [PMID: 37146827 DOI: 10.1016/j.scitotenv.2023.163768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/16/2023] [Accepted: 04/23/2023] [Indexed: 05/07/2023]
Abstract
Molinate is classified as a thiocarbamate herbicide and is mainly used in paddy fields to culture rice. However, the toxic effects of molinate and the associated mechanisms in the process of development have not been completely elucidated. Therefore, in the present study, we demonstrated that molinate reduced the viability of zebrafish larvae and the probability of successful hatching using zebrafish (Danio rerio), one of the remarkable in vivo models for testing the toxicity of chemicals. In addition, molinate treatment triggered the occurrence of apoptosis, inflammation, and endoplasmic reticulum (ER) stress response in zebrafish larvae. Furthermore, we identified that an abnormal cardiovascular phenotype through wild type zebrafish, neuronal defects through transgenic olig2:dsRed zebrafish, and developmental toxicity in the liver through transgenic lfabp:dsRed zebrafish. Collectively, these results provide evidence of the hazardous effects of molinate on the developmental stage of non-target organisms by elucidating the toxic mechanisms of molinate in developing zebrafish.
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Affiliation(s)
- Hojun Lee
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Garam An
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Junho Park
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Whasun Lim
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea.
| | - Gwonhwa Song
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea.
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Davoodi M, Davar F, Rezayat MR, Jafari MT, Bazarganipour M, Shalan AE. Synthesis and characterization of a new ZIF-67@MgAl 2O 4 nanocomposite and its adsorption behaviour. RSC Adv 2021; 11:13245-13255. [PMID: 35423898 PMCID: PMC8697589 DOI: 10.1039/d1ra01056e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 10/28/2021] [Accepted: 03/30/2021] [Indexed: 11/21/2022] Open
Abstract
Fabricating suitable adsorbents with low-cost and high efficiency extraction for measurement of very small amounts of agricultural pesticides in food and water is playing a vital key role in personal and environmental health. Here, a new composite of zeolitic imidazolate framework-67@magnesium aluminate spinel (ZIF-67@MgAl2O4) has been fabricated by a simple method at room temperature with different weight ratios. Several techniques such as FE-SEM, BET, XRD, and TGA have been used to confirm the structural characterization of the obtained materials. The obtained ZIF-67@MgAl2O4 was utilized as an adsorbent in the solid phase microextraction technique to extract and preconcentrate the herbicide molinate (as an analyte) in aqueous solution. Corona discharge ionization-ion mobility spectrometry (CD-IMS) was applied for quantification of the analyte molecules. Extraction temperature, extraction time, stirring rate, and sample pH as the main parameters that affected the extraction proficiency were chosen and considered. Under optimal conditions, the linear dynamic range (LDR) of the various concentrations of the molinate and correlation coefficient were 10.0-100.0 μg L-1 and 0.9961, respectively. The limit of quantification (LOQ) and method detection limit (MDL) were 10.0 μg L-1 and 3.0 μg L-1, respectively. The relative standard deviation (RSD) of the ZIF-67@MgAl2O4 for extracting the molinate molecules (molinate concentration; 50 μg L-1) was calculated to be 4% and the enrichment factor (EF) was ∼5.
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Affiliation(s)
- Mehdi Davoodi
- Department of Chemistry, Isfahan University of Technology Isfahan 84156-83111 Iran
| | - Fatemeh Davar
- Department of Chemistry, Isfahan University of Technology Isfahan 84156-83111 Iran
| | - Mohammad R Rezayat
- Department of Chemistry, Isfahan University of Technology Isfahan 84156-83111 Iran
| | - Mohammad T Jafari
- Department of Chemistry, Isfahan University of Technology Isfahan 84156-83111 Iran
| | - Mehdi Bazarganipour
- Department of Chemistry, Isfahan University of Technology Isfahan 84156-83111 Iran
| | - Ahmed Esmail Shalan
- BCMaterials, Basque Center for Materials, Applications and Nanostructures Martina Casiano, UPV/EHU Science Park, Barrio Sarriena s/n Leioa 48940 Spain
- Central Metallurgical Research and Development Institute (CMRDI) P.O. Box 87, Helwan Cairo 11421 Egypt
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3
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Davoodi M, Davar F, Rezayat MR, Jafari MT, Shalan AE. Cobalt metal-organic framework-based ZIF-67 for the trace determination of herbicide molinate by ion mobility spectrometry: investigation of different morphologies. RSC Adv 2021; 11:2643-2655. [PMID: 35424212 PMCID: PMC8693792 DOI: 10.1039/d0ra09298c] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 12/17/2020] [Indexed: 02/02/2023] Open
Abstract
Co-MOF-based zeolitic imidazolate frameworks (ZIF-67) with various morphologies were prepared via an innovative way under distinct reaction conditions. By changing the reaction conditions, including the cobalt source, solvent, time, temperature, and linking agent to the cobalt ions, the morphological evolution of Co-MOF-based ZIF-67 was investigated. The Co-MOF-based ZIF-67 was applied as an adsorbent fiber in the solid-phase microextraction (SPME) technique for extracting a herbicide, namely molinate (as a test compound), in aqueous samples. For recognizing the molinate molecules, drift tube ion mobility spectrometry (IMS) was employed as a sensitive, rapid, and simple detection technique. Two essential parameters, namely extraction temperature and extraction time, influenced the extraction efficiency, and these parameters were also analyzed and optimized. The linear dynamic range (LDR) and the determination coefficient were found to be 0.5-20.0 μg L-1 and 0.9990, respectively. In this regard, the limit of quantification (LOQ) and the detection limit (LOD) were calculated and found to be 0.5 μg L-1 and 0.15 μg L-1, respectively. Finally, the effect of the adsorbent with different morphologies on the extraction efficiency was compared.
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Affiliation(s)
- Mehdi Davoodi
- Department of Chemistry, Isfahan University of Technology Isfahan 84156-83111 Iran
| | - Fatemeh Davar
- Department of Chemistry, Isfahan University of Technology Isfahan 84156-83111 Iran
| | - Mohammad R Rezayat
- Department of Chemistry, Isfahan University of Technology Isfahan 84156-83111 Iran
| | - Mohammad T Jafari
- Department of Chemistry, Isfahan University of Technology Isfahan 84156-83111 Iran
| | - Ahmed Esmail Shalan
- BCMaterials, Basque Center for Materials, Applications and Nanostructures Martina Casiano, UPV/EHU Science Park, Barrio Sarriena s/n Leioa 48940 Spain
- Central Metallurgical Research and Development Institute (CMRDI) P.O. Box 87, Helwan Cairo 11421 Egypt
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Barba V, Marín-Benito JM, García-Delgado C, Sánchez-Martín MJ, Rodríguez-Cruz MS. Assessment of 14C-prosulfocarb dissipation mechanism in soil after amendment and its impact on the microbial community. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 182:109395. [PMID: 31272022 DOI: 10.1016/j.ecoenv.2019.109395] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 06/24/2019] [Accepted: 06/26/2019] [Indexed: 06/09/2023]
Abstract
Adding organic amendments to soil could modify the bioavailability of herbicides and lead to changes in the microbial community's activity and structure. The objective here was to study the dissipation and total mass balance of 14C-labeled prosulfocarb applied at two rates (4 and 10 mg kg-1) in unamended and green compost (GC)-amended soil. Soil dehydrogenase activity (DHA) and phospholipid fatty acid (PLFA) profile analysis were determined to evaluate the effect of herbicide residues on microbial community's activity and structure over the dissipation period. The dissipation rate of prosulfocarb decreased after soil amendment due to higher herbicide adsorption by the amended soil. The 50% dissipation time (DT50) increased 1.7 times in the unamended soil when the concentration of prosulfocarb increased 2.5 times. The mass balance results indicate that the sum of water and organic extractable fractions represented the highest amounts up to the dissipation of 50% 14C-prosulfocarb. The 14C-herbicide was then mainly mineralized (up to 11%-31%) or formed non-extractable residues (up to 35%-44%). The amount of 14C-prosulfocarb residues extracted with methanol was slightly higher in amended soils than in unamended ones. 14C-prosulfocarb mineralization was higher in unamended soils than in amended ones. The formation of non-extractable residues was continuous, and increased over time. Soil DHA decreased in the unamended soil and was maintained in the GC-amended soil at the end of the assay. The microbial structure was barely disturbed over the prosulfocarb degradation process, although it was clearly influenced by the application of GC. The results obtained reveal the influence organic amendment has on herbicide bioavailability to decrease its biodegradation and buffer its impact on the soil microbial structure.
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Affiliation(s)
- Víctor Barba
- Institute of Natural Resources and Agrobiology of Salamanca (IRNASA-CSIC), Cordel de Merinas 40-52, 37008, Salamanca, Spain
| | - Jesús M Marín-Benito
- Institute of Natural Resources and Agrobiology of Salamanca (IRNASA-CSIC), Cordel de Merinas 40-52, 37008, Salamanca, Spain
| | - Carlos García-Delgado
- Institute of Natural Resources and Agrobiology of Salamanca (IRNASA-CSIC), Cordel de Merinas 40-52, 37008, Salamanca, Spain
| | - María J Sánchez-Martín
- Institute of Natural Resources and Agrobiology of Salamanca (IRNASA-CSIC), Cordel de Merinas 40-52, 37008, Salamanca, Spain
| | - M Sonia Rodríguez-Cruz
- Institute of Natural Resources and Agrobiology of Salamanca (IRNASA-CSIC), Cordel de Merinas 40-52, 37008, Salamanca, Spain.
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Reaction kinetics of mesotrione removal catalyzed by TiO2 in the presence of different electron acceptors. REACTION KINETICS MECHANISMS AND CATALYSIS 2019. [DOI: 10.1007/s11144-019-01571-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Shetti NP, Malode SJ, Ilager D, Raghava Reddy K, Shukla SS, Aminabhavi TM. A Novel Electrochemical Sensor for Detection of Molinate Using ZnO Nanoparticles Loaded Carbon Electrode. ELECTROANAL 2019. [DOI: 10.1002/elan.201800775] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Nagaraj P. Shetti
- Electrochemistry and Materials GroupDepartment of ChemistryK.L.E. Institute of Technology Hubballi– 580 030 India Tel.: +91 9611979743 Fax: 0836-2330688
- Visvesvaraya Technological University Karnataka India
- Department of Chemistry and BiochemistryLamar University Beaumont, Texas 77710 USA
| | - Shweta J. Malode
- Electrochemistry and Materials GroupDepartment of ChemistryK.L.E. Institute of Technology Hubballi– 580 030 India Tel.: +91 9611979743 Fax: 0836-2330688
- Visvesvaraya Technological University Karnataka India
| | - Davalasab Ilager
- Electrochemistry and Materials GroupDepartment of ChemistryK.L.E. Institute of Technology Hubballi– 580 030 India Tel.: +91 9611979743 Fax: 0836-2330688
- Visvesvaraya Technological University Karnataka India
| | - Kakarla Raghava Reddy
- School of Chemical and Biomolecular EngineeringThe University of Sydney Sydney, NSW 2006 Australia
| | - Shyam S. Shukla
- Department of Chemistry and BiochemistryLamar University Beaumont, Texas 77710 USA
| | - Tejraj M. Aminabhavi
- Department of Chemistry and BiochemistryLamar University Beaumont, Texas 77710 USA
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Chen X, He S, Liang Z, Li QX, Yan H, Hu J, Liu X. Biodegradation of pyraclostrobin by two microbial communities from Hawaiian soils and metabolic mechanism. JOURNAL OF HAZARDOUS MATERIALS 2018; 354:225-230. [PMID: 29753191 DOI: 10.1016/j.jhazmat.2018.04.067] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 04/08/2018] [Accepted: 04/25/2018] [Indexed: 06/08/2023]
Abstract
Pyraclostrobin has been widely and long-termly applicated to agricultural fields. The removal of pyraclostrobin from ecological environment has received wide attention. In this study, using sequential enrichments with pyraclostrobin as a sole carbon source, two microbial communities (HI2 and HI6) capable of catabolizing pyraclostrobin were obtained from Hawaiian soils. The microfloras analysis indicated that only Proteobacteria and Bacteroides could survive in HI2-soil after acclimatization, whereas the number of Proteobacteria in HI6-soil accounted for more than 99%. The percentages of Pseudomonas in the HI2 and HI6 microfloras were 69.3% and 59.3%, respectively. More than 99% of pyraclostrobin (C0 = 100 mg L-1) was degraded by the HI2 and HI6 microorganisms within five days. A unique metabolite was identified by high performance liquid chromatography tandem quadrupole time-of-flight mass spectrometry (HPLC-QTOF-MS/MS). A metabolic pathway involving carbamate hydrolysis was proposed. The tertiary amine group of pyraclostrobin was hydrolyzed to primary amine group with the decarboxylation, which facilitated pyraclostrobin detoxification because carboxylester was an important functional group. The metabolic mechanism suggested that Pseudomonas expressing carboxylesterase might be able to degrade carbamate chemicals. Therefore, Pseudomonas might be an ideal candidate for expression and cloning of carbamate-degrading gene in genomics studies. The current study would have important implications in detoxification and bioremediation of carbamates through the CN bond cleavage of methyl carbamate.
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Affiliation(s)
- Xiaoxin Chen
- College of Chemistry and Environmental Science, Hebei University, Baoding City, Hebei Province, 071002, PR China.
| | - Sheng He
- College of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China.
| | - Zhibin Liang
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI, 96822, USA.
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI, 96822, USA.
| | - Hai Yan
- College of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China.
| | - Jiye Hu
- College of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China.
| | - Xiaolu Liu
- College of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China.
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8
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Ramadass M, Thiagarajan P. Effective pesticide nano formulations and their bacterial degradation. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1757-899x/263/2/022050] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Huang X, He J, Yan X, Hong Q, Chen K, He Q, Zhang L, Liu X, Chuang S, Li S, Jiang J. Microbial catabolism of chemical herbicides: Microbial resources, metabolic pathways and catabolic genes. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2017; 143:272-297. [PMID: 29183604 DOI: 10.1016/j.pestbp.2016.11.010] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 11/21/2016] [Accepted: 11/23/2016] [Indexed: 06/07/2023]
Abstract
Chemical herbicides are widely used to control weeds and are frequently detected as contaminants in the environment. Due to their toxicity, the environmental fate of herbicides is of great concern. Microbial catabolism is considered the major pathway for the dissipation of herbicides in the environment. In recent decades, there have been an increasing number of reports on the catabolism of various herbicides by microorganisms. This review presents an overview of the recent advances in the microbial catabolism of various herbicides, including phenoxyacetic acid, chlorinated benzoic acid, diphenyl ether, tetra-substituted benzene, sulfonamide, imidazolinone, aryloxyphenoxypropionate, phenylurea, dinitroaniline, s-triazine, chloroacetanilide, organophosphorus, thiocarbamate, trazinone, triketone, pyrimidinylthiobenzoate, benzonitrile, isoxazole and bipyridinium herbicides. This review highlights the microbial resources that are capable of catabolizing these herbicides and the mechanisms involved in the catabolism. Furthermore, the application of herbicide-degrading strains to clean up herbicide-contaminated sites and the construction of genetically modified herbicide-resistant crops are discussed.
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Affiliation(s)
- Xing Huang
- Department of Microbiology, Key Lab of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, 210095 Nanjing, People's Republic of China
| | - Jian He
- Department of Microbiology, Key Lab of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, 210095 Nanjing, People's Republic of China
| | - Xin Yan
- Department of Microbiology, Key Lab of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, 210095 Nanjing, People's Republic of China
| | - Qing Hong
- Department of Microbiology, Key Lab of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, 210095 Nanjing, People's Republic of China
| | - Kai Chen
- Department of Microbiology, Key Lab of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, 210095 Nanjing, People's Republic of China
| | - Qin He
- Department of Microbiology, Key Lab of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, 210095 Nanjing, People's Republic of China
| | - Long Zhang
- Department of Microbiology, Key Lab of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, 210095 Nanjing, People's Republic of China
| | - Xiaowei Liu
- Department of Microbiology, Key Lab of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, 210095 Nanjing, People's Republic of China
| | - Shaochuang Chuang
- Department of Microbiology, Key Lab of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, 210095 Nanjing, People's Republic of China
| | - Shunpeng Li
- Department of Microbiology, Key Lab of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, 210095 Nanjing, People's Republic of China
| | - Jiandong Jiang
- Department of Microbiology, Key Lab of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, 210095 Nanjing, People's Republic of China.
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Estevinho BN, Lopes AR, Sousa V, Rocha F, Nunes OC. Microencapsulation of Gulosibacter molinativorax ON4 T cells by a spray-drying process using different biopolymers. JOURNAL OF HAZARDOUS MATERIALS 2017; 338:85-92. [PMID: 28531662 DOI: 10.1016/j.jhazmat.2017.05.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 05/09/2017] [Accepted: 05/10/2017] [Indexed: 06/07/2023]
Abstract
Molinate is a thiocarbamate herbicide used in rice crop protection. As other pesticides, molinate is a recognized environmental pollutant and bio-accumulated by some wildlife forms. Gulosibacter molinativorax ON4T is able to hydrolyse molinate into metabolites which are further degraded by other un-related bacteria. Hence, it can be used in molinate bioremediation processes. The aim of this work was to investigate the possibility of producing G. molinativorax ON4T microparticles, using different non-toxic biopolymers (arabic gum, modified chitosan, calcium alginate and sodium alginate) as encapsulating agents by a spray-drying process. Several formulations of microparticles were prepared, and their physicochemical structures were analyzed by scanning electron microscopy (SEM), laser granulometry analysis and zeta potential analysis. The obtained microparticles were evaluated considering their ability to degrade molinate, the metabolic activity (by colour development of the tetrazolium violet redox), and also the survival rate and shelf-life/storage stability of microparticles. Based on their molinate degrading activity, the biopolymers calcium alginate and modified chitosan cross-linked with tripolyphosphate appear to be the best options for the microencapsulation of the G. molinativorax ON4T. However, the microparticles produced with modified chitosan cross-linked with tripolyphosphate present the best combination of physical properties and activity degradation of molinate.
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Affiliation(s)
- Berta N Estevinho
- LEPABE, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - A Rita Lopes
- LEPABE, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Vera Sousa
- LEPABE, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Fernando Rocha
- LEPABE, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
| | - Olga C Nunes
- LEPABE, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
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Cotton J, Leroux F, Broudin S, Poirel M, Corman B, Junot C, Ducruix C. Development and validation of a multiresidue method for the analysis of more than 500 pesticides and drugs in water based on on-line and liquid chromatography coupled to high resolution mass spectrometry. WATER RESEARCH 2016; 104:20-27. [PMID: 27508970 DOI: 10.1016/j.watres.2016.07.075] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 07/25/2016] [Accepted: 07/30/2016] [Indexed: 06/06/2023]
Abstract
Screening of a large number of emerging pollutants is highly desirable for the control of water quality. In this respect, a novel, fully automated contaminant screening method based on an integrated sample preconcentration and liquid chromatography coupled to high resolution mass spectrometry (SPE-UHPLC-HRMS) has been developed. The optimal chromatographic column and experimental conditions allowing the retention and subsequent elution of the maximum number of analytes were defined. Liquid chromatography and Q-exactive (Orbitrap™) parameters were optimized to obtain the best separation of molecules of interest, and the lowest detection limits. Due to the large amount of data to compare, a script written in R language was developed to evaluate the quality of the data generated by the comparison of 14 experimental conditions. The developed method enables the simultaneous semi quantitative analysis of 539 compounds (pesticides and drug residues), in 36 min with only 5 mL of water. Method validation was achieved through studies of repeatability, selectivity, linearity and matrix effect. Application to 20 tap water samples collected in and around Paris showed the presence of 34 different compounds all with concentrations below 0.1 μg/L, the European Union limit for drinking water. Pesticides and transformation products frequently found in water resources such as atrazine and its metabolites, hexazinone, oxadixyl, propazine and simazine were detected. Drug residues such as valsartan and carbamazepine, usually not monitored, were also found. The next step will be to assess the ability of this method to highlight the presence of unexpected contaminants not present in our database.
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Affiliation(s)
- Jérôme Cotton
- Profilomic, 31 rue d'Aguesseau, 92100 Boulogne Billancourt, France
| | - Fanny Leroux
- Profilomic, 31 rue d'Aguesseau, 92100 Boulogne Billancourt, France
| | - Simon Broudin
- Profilomic, 31 rue d'Aguesseau, 92100 Boulogne Billancourt, France
| | - Marion Poirel
- Profilomic, 31 rue d'Aguesseau, 92100 Boulogne Billancourt, France
| | - Bruno Corman
- Profilomic, 31 rue d'Aguesseau, 92100 Boulogne Billancourt, France
| | - Christophe Junot
- Laboratoire d'Etude du Métabolisme des Médicaments, CEA-INRA UMR 0496 DRF/iBiTec-S/SPI, Université Paris Saclay, MetaboHUB-Paris, 91191 Gif-sur-Yvette cedex, France
| | - Céline Ducruix
- Profilomic, 31 rue d'Aguesseau, 92100 Boulogne Billancourt, France.
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12
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Lopes AR, Sousa VM, Estevinho BN, Leite JP, Moreira NFF, Gales L, Rocha F, Nunes OC. Production of microparticles of molinate degrading biocatalysts using the spray drying technique. CHEMOSPHERE 2016; 161:61-68. [PMID: 27421102 DOI: 10.1016/j.chemosphere.2016.07.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 06/16/2016] [Accepted: 07/02/2016] [Indexed: 06/06/2023]
Abstract
Previous studies demonstrated the capability of mixed culture DC1 to mineralize the thiocarbamate herbicide molinate through the activity of molinate hydrolase (MolA). Because liquid suspensions are not compatible with long-term storage and are not easy to handle when bioremediation strategies are envisaged, in this study spray drying was evaluated as a cost-effective method to store and transport these molinate biocatalysts. Microparticles of mixed culture DC1 (DC1) and of cell free crude extracts containing MolA (MA) were obtained without any carrier polymer, and with calcium alginate (CA) or modified chitosan (MCt) as immobilizing agents. All the DC1 microparticles showed high molinate degrading activity upon storage for 6 months, or after 9 additions of ∼0.4 mM molinate over 1 month. The DC1-MCt microparticles were those with the highest survival rate and lowest heterogeneity. For MA microparticles, only MA-MCt degraded molinate. However, its Vmax was only 1.4% of that of the fresh cell free extract (non spray dried). The feasibility of using the DC1-MCt and MA-MCt microparticles in bioaugmentation processes was assessed in river water microcosms, using mass (g):volume (L) ratios of 1:13 and 1:0.25, respectively. Both type of microparticles removed ∼65-75% of the initial 1.5 mg L(-1) molinate, after 7 days of incubation. However, only DC1-MCt microparticles were able to degrade this environmental concentration of molinate without disturbing the native bacterial community. These results suggest that spray drying can be successfully used to produce DC1-MCt microparticles to remediate molinate polluted sites through a bioaugmentation strategy.
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Affiliation(s)
- Ana R Lopes
- LEPABE, Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Vera M Sousa
- LEPABE, Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Berta N Estevinho
- LEPABE, Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - José P Leite
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal; IBMC, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal
| | - Nuno F F Moreira
- LEPABE, Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Luís Gales
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal; IBMC, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Rua de Jorge Viterbo Ferreira n.º 228, 4050-313 Porto, Portugal
| | - Fernando Rocha
- LEPABE, Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Olga C Nunes
- LEPABE, Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
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13
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Tétard‐Jones C, Edwards R. Potential roles for microbial endophytes in herbicide tolerance in plants. PEST MANAGEMENT SCIENCE 2016; 72:203-9. [PMID: 26350619 PMCID: PMC4949542 DOI: 10.1002/ps.4147] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 08/27/2015] [Accepted: 09/04/2015] [Indexed: 05/14/2023]
Abstract
Herbicide tolerance in crops and weeds is considered to be monotrophic, i.e. determined by the relative susceptibility of the physiological process targeted and the plant's ability to metabolise and detoxify the agrochemical. A growing body of evidence now suggests that endophytes, microbes that inhabit plant tissues and provide a range of growth, health and defence enhancements, can contribute to other types of abiotic and biotic stress tolerance. The current evidence for herbicide tolerance being bitrophic, with both free-living and plant-associated endophytes contributing to tolerance in the host plant, has been reviewed. We propose that endophytes can directly contribute to herbicide detoxification through their ability to metabolise xenobiotics. In addition, we explore the paradigm that microbes can 'prime' resistance mechanisms in plants such that they enhance herbicide tolerance by inducing the host's stress responses to withstand the downstream toxicity caused by herbicides. This latter mechanism has the potential to contribute to the growth of non-target-site-based herbicide resistance in weeds. Microbial endophytes already contribute to herbicide detoxification in planta, and there is now significant scope to extend these interactions using synthetic biology approaches to engineer new chemical tolerance traits into crops via microbial engineering.
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Affiliation(s)
| | - Robert Edwards
- School of Agriculture, Food and Rural DevelopmentNewcastle UniversityNewcastleUK
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14
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Liu Y, Mo R, Zhong D, Shen D, Ni Z, Tang F. The Fate of Organophosphorus Pesticides during Camellia Oil Production. J Food Sci 2015; 80:T1926-32. [DOI: 10.1111/1750-3841.12951] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 05/30/2015] [Indexed: 11/27/2022]
Affiliation(s)
- Yihua Liu
- Research Institute of Subtropical Forestry; Chinese Academy of Forestry; Fuyang 311400 P. R. China
| | - Runhong Mo
- Research Institute of Subtropical Forestry; Chinese Academy of Forestry; Fuyang 311400 P. R. China
| | - Donglian Zhong
- Research Institute of Subtropical Forestry; Chinese Academy of Forestry; Fuyang 311400 P. R. China
| | - Danyu Shen
- Research Institute of Subtropical Forestry; Chinese Academy of Forestry; Fuyang 311400 P. R. China
| | - Zhanglin Ni
- Research Institute of Subtropical Forestry; Chinese Academy of Forestry; Fuyang 311400 P. R. China
| | - Fubin Tang
- Research Institute of Subtropical Forestry; Chinese Academy of Forestry; Fuyang 311400 P. R. China
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15
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Leite JP, Duarte M, Paiva AM, Ferreira-da-Silva F, Matias PM, Nunes OC, Gales L. Structure-guided engineering of molinate hydrolase for the degradation of thiocarbamate pesticides. PLoS One 2015; 10:e0123430. [PMID: 25905461 PMCID: PMC4407906 DOI: 10.1371/journal.pone.0123430] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 03/03/2015] [Indexed: 11/19/2022] Open
Abstract
Molinate is a recalcitrant thiocarbamate used to control grass weeds in rice fields. The recently described molinate hydrolase, from Gulosibacter molinativorax ON4T, plays a key role in the only known molinate degradation pathway ending in the formation of innocuous compounds. Here we report the crystal structure of recombinant molinate hydrolase at 2.27 Å. The structure reveals a homotetramer with a single mononuclear metal-dependent active site per monomer. The active site architecture shows similarities with other amidohydrolases and enables us to propose a general acid-base catalysis mechanism for molinate hydrolysis. Molinate hydrolase is unable to degrade bulkier thiocarbamate pesticides such as thiobencarb which is used mostly in rice crops. Using a structural-based approach, we were able to generate a mutant (Arg187Ala) that efficiently degrades thiobencarb. The engineered enzyme is suitable for the development of a broader thiocarbamate bioremediation system.
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Affiliation(s)
- José P. Leite
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- IBMC—Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Márcia Duarte
- IBMC—Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
- LEPABE—Laboratory for Process Engineering, Environmental, Biotechnology and Energy, Faculdade de Engenharia da Universidade do Porto, Porto, Portugal
| | - Ana M. Paiva
- LEPABE—Laboratory for Process Engineering, Environmental, Biotechnology and Energy, Faculdade de Engenharia da Universidade do Porto, Porto, Portugal
| | - Frederico Ferreira-da-Silva
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- IBMC—Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Pedro M. Matias
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, and IBET, Apartado 12, 2781–901 Oeiras, Portugal
| | - Olga C. Nunes
- LEPABE—Laboratory for Process Engineering, Environmental, Biotechnology and Energy, Faculdade de Engenharia da Universidade do Porto, Porto, Portugal
| | - Luís Gales
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- IBMC—Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
- ICBAS—Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
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