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Ha DD. Degradation of isoproturon in vitro by a mix of bacterial strains isolated from arable soil. Can J Microbiol 2022; 68:605-613. [PMID: 35896041 DOI: 10.1139/cjm-2022-0084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Isoproturon (IPU) is widely used to control annual grasses and broad leaf weeds in cereal crops. In this study, four IPU-degrading bacterial strains, i.e., Sphingomonas sp. ISP1, Arthrobacter sp. ISP2, Acinetobacter baumannii 4IA and Pseudomonas sp. ISP3, were isolated from agricultural soil. The mixed culture of four isolates completely degraded the herbicide at 100 mg/L within 10 days. During IPU degradation, several transient accumulations of the metabolites, including 3-(4-isopropylphenyl)-1-methylurea, 3-(4-isopropylphenyl)-urea, 4-isopropylaniline, and 4-toluidine, were also identified. Moreover, the inoculation of the isolated mixed culture into the soil from a mountain with no previous herbicide application increased the degradation rate by 51% of the herbicide on average. Furthermore, bioaugmentation with isolated bacteria in the soil resulted in short term variations in bacterial structure compared to the unaugmented soil. The findings of this study were instrumental in understanding the mechanisms of pesticide breakdown and bioremediation in liquid media and soil.
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Affiliation(s)
- Duc Danh Ha
- Dong Thap University, 457959, Cao Lanh, Viet Nam;
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2
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Jia W, Shen D, Yu K, Zhong J, Li Z, Ye Q, Jiang J, Wang W. Reducing the Environmental Risk of Chlorpyrifos Application through Appropriate Agricultural Management: Evidence from Carbon-14 Tracking. J Agric Food Chem 2021; 69:7324-7333. [PMID: 34167301 DOI: 10.1021/acs.jafc.1c02753] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Chlorpyrifos (CPF) is one of the most critical insecticides in the world. However, many countries are gradually banning its use due to its reported hazardous impacts on humans. This study explored the possibility of reducing the environmental risk of CPF through appropriate agricultural management practices. Results showed that the environmental risk of CPF is lower under drainage conditions because there is more mineralization and less bound residues (BRs) than under submerged conditions. Bioaugmentation significantly enhanced the CPF mineralization and inhibited the formation of CPF-BRs. Biochar adsorbed CPF and thus reduced its bioavailability, but it could not completely eliminate the toxicity of CPF. In addition, bioaugmentation did not significantly affect the native microbial community of CPF-contaminated soil, suggesting its safety in reducing the environmental risk of CPF. The study indicated that the environmental risk of CPF could be reduced by appropriate agricultural management such as water management, bioaugmentation, soil biochar amendment, and selecting suitable soil types.
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Affiliation(s)
- Weibin Jia
- Department of Microbiology, Key Laboratory of Microbiology for Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture of PRC and Zhejiang Province, Zhejiang University, Hangzhou 310058, China
| | - Dahang Shen
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture of PRC and Zhejiang Province, Zhejiang University, Hangzhou 310058, China
| | - Kaixiang Yu
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture of PRC and Zhejiang Province, Zhejiang University, Hangzhou 310058, China
| | - Jiayin Zhong
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture of PRC and Zhejiang Province, Zhejiang University, Hangzhou 310058, China
| | - Zheng Li
- Agricultural Products Quality and Safety Center of Zhejiang Province, Hangzhou 310003, China
| | - Qingfu Ye
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture of PRC and Zhejiang Province, Zhejiang University, Hangzhou 310058, China
| | - Jiandong Jiang
- Department of Microbiology, Key Laboratory of Microbiology for Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Wei Wang
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture of PRC and Zhejiang Province, Zhejiang University, Hangzhou 310058, China
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3
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Jia W, Ye Q, Shen D, Yu K, Zheng Y, Liu M, Jiang J, Wang W. Enhanced mineralization of chlorpyrifos bound residues in soil through inoculation of two synergistic degrading strains. J Hazard Mater 2021; 412:125116. [PMID: 33540267 DOI: 10.1016/j.jhazmat.2021.125116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 01/07/2021] [Accepted: 01/08/2021] [Indexed: 06/12/2023]
Abstract
Bioaugmentation methods are frequently employed for pesticide pollution remediation; however, it is not clear whether the introduced bacteria affect the pesticide bound residue (BRs) composition and whether the BRs can be catabolized by the introduced strains. This study aimed at answering these questions by using 14C-chlorpyrifos (14C-CPF) and two CPF-degrading strains (Pseudomonas sp. DSP-1 and Cupriavidus sp. P2). The results showed that the BRs can be up to 83.0%, and that the CPF-BRs formed can be further transformed into 14CO2 by the strains. Indeed, the microbial inoculation can increase the CPF mineralization by 1.0-22.1 times and can decrease the BRs by up to ~50% of the control (on day 20). Compared with the control without bioaugmentation, microbial inoculation enhanced the release of BRs by 2.2-18.0 times. Adding biochar to the soil can greatly inhibit CPF mineralization and maintain the BR content at a relatively stable level. The CPF residue can affect the composition of the indigenous soil microbial community, but the introduction of bacteria for remediation did not have a significant effect. The results indicate that Pseudomonas sp. DSP-1 and Cupriavidus sp. P2 are useful for remediating both CPF extractable and bound residues.
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Affiliation(s)
- Weibin Jia
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture of PRC and Zhejiang Province, Zhejiang University, Hangzhou 310058, China; Department of Microbiology, Key Laboratory of Microbiology for Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Qingfu Ye
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture of PRC and Zhejiang Province, Zhejiang University, Hangzhou 310058, China
| | - Dahang Shen
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture of PRC and Zhejiang Province, Zhejiang University, Hangzhou 310058, China
| | - Kaixiang Yu
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture of PRC and Zhejiang Province, Zhejiang University, Hangzhou 310058, China
| | - Yaoying Zheng
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture of PRC and Zhejiang Province, Zhejiang University, Hangzhou 310058, China
| | - Mengdi Liu
- Department of Microbiology, Key Laboratory of Microbiology for Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Jiandong Jiang
- Department of Microbiology, Key Laboratory of Microbiology for Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China.
| | - Wei Wang
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture of PRC and Zhejiang Province, Zhejiang University, Hangzhou 310058, China.
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4
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Jamwal S, Ranote S, Dautoo U, Chauhan GS. Improving activity and stabilization of urease by crosslinking to nanoaggregate forms for herbicide degradation. Int J Biol Macromol 2020; 158:521-529. [PMID: 32360462 DOI: 10.1016/j.ijbiomac.2020.04.224] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/13/2020] [Accepted: 04/25/2020] [Indexed: 01/14/2023]
Abstract
Bioremediation is the most effective green protocol for degradation of environmental contaminants. Present study involves carrier free urease immobilization with synthesis of its new crosslinked aggregates using two different crosslinkers, divinyl benzene (DVB) and tripropyleneglycol dimethacrylate (TPGDA) via free radical mechanism. Resulting crosslinked ureases were further converted to nanoform (CLUNAs) using solvent evaporation technique. The activity of free and the crosslinked ureases was studied as a function of operational parameters viz. temperature (20-80), pH (2-11) and substrate concentration (5-20 mM) using urea as substrate at contact time of 10 min. Storability study of the pristine urease and CLUNAs was carried out for 40 days, and the CLUNAs were reused in 10 repeat cycles to assess their reusability. Isoproturone degradation was studied under the above-cited range of pH and temperature and results were recorded after 24 h.
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Affiliation(s)
- Shivani Jamwal
- Himachal Pradesh University, Department of Chemistry, Summerhill, Shimla 171005, Himachal Pradesh, India
| | - Sunita Ranote
- Himachal Pradesh University, Department of Chemistry, Summerhill, Shimla 171005, Himachal Pradesh, India
| | - Umesh Dautoo
- Himachal Pradesh University, Department of Chemistry, Summerhill, Shimla 171005, Himachal Pradesh, India
| | - Ghanshyam S Chauhan
- Himachal Pradesh University, Department of Chemistry, Summerhill, Shimla 171005, Himachal Pradesh, India.
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Yang Y, Wang H, Li W, Chen Y, Guo W, Gu X, Ye Q. Phytoavailability of bound residue of Carbendazim to Chinese cabbage (Brassica campestris ssp.chinensis) coexisted with Superabsorbent polymers. Sci Rep 2020; 10:491. [PMID: 31949272 PMCID: PMC6965113 DOI: 10.1038/s41598-020-57488-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 12/12/2019] [Indexed: 12/05/2022] Open
Abstract
Understanding the bioavailability and phytotoxicity of Carbendazim (MBC) bound residues (BR) in soils incubated with different Superabsorbent polymer (SAP) amendment on succeeding crops is essential to assess their environmental fate and risks. In our research, we studied the morphological characteristics and 14C-accumulation of Chinese cabbage and released BR in three typical cultivated soils. The plant dry weight was in order of superabsorbent-hydrogels formulations (HMBC) > MBC > MBC and SAP (MBC-SAP) at 35 d in basic soil 3 (S3), with 675.40 ± 29.07 mg/plant.d.w, 575.93 ± 25.35 mg/plant.d.w and 427.86 ± 18.79 mg/plant.d.w. The whole plant accumulated 2-fold more BR when grew in neutral soil 2 (S2) treated with SAP than MBC at 7 d. The root accumulated a greater proportion of 14C-MBC residue than shoot, with order of MBC-SAP > MBC > HMBC at 21d. The results indicate MBC-BR could be released and accumulated in plant. HMBC promoted the Chinese cabbage growth with lowest 14C accumulation, while MBC-SAP inhibited plant growth with the highest 14C uptake. The released BR rate was 61.43 ± 3.75% of initial BR in MBC-SAP, with 2-fold higher than MBC and HMBC. It is assumed HMBC could be a potential environmentally friendly measure for rational use of pesticides in future.
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Affiliation(s)
- Yatian Yang
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Zhejiang University, Hangzhou, 310029, China
| | - Haiyan Wang
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Zhejiang University, Hangzhou, 310029, China
| | - Wei Li
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Zhejiang University, Hangzhou, 310029, China
| | - Yan Chen
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Zhejiang University, Hangzhou, 310029, China
| | - Wei Guo
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Zhejiang University, Hangzhou, 310029, China
| | - Xin Gu
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Zhejiang University, Hangzhou, 310029, China
| | - Qingfu Ye
- Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Zhejiang University, Hangzhou, 310029, China.
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6
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Rychter P, Lewicka K, Rogacz D. Environmental usefulness of PLA/PEG blends for controlled‐release systems of soil‐applied herbicides. J Appl Polym Sci 2019. [DOI: 10.1002/app.47856] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Piotr Rychter
- Faculty of Mathematics and Natural ScienceJan Długosz University in Częstochowa 13/15 Armii Krajowej Av., 42‐200 Częstochowa Poland
| | - Kamila Lewicka
- Faculty of Mathematics and Natural ScienceJan Długosz University in Częstochowa 13/15 Armii Krajowej Av., 42‐200 Częstochowa Poland
| | - Diana Rogacz
- Faculty of Mathematics and Natural ScienceJan Długosz University in Częstochowa 13/15 Armii Krajowej Av., 42‐200 Częstochowa Poland
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7
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Singh JP, Ojinnaka EU, Krumins JA, Goodey NM. Abiotic factors determine functional outcomes of microbial inoculation of soils from a metal contaminated brownfield. Ecotoxicol Environ Saf 2019; 168:450-456. [PMID: 30415167 DOI: 10.1016/j.ecoenv.2018.10.114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 10/12/2018] [Accepted: 10/30/2018] [Indexed: 05/20/2023]
Abstract
Whole community microbial inoculation can improve soil function in contaminated environments. Here we conducted a case study to investigate whether biotic factors (inoculum) or abiotic factors (soil base) have more impact on the extracellular enzymatic activities in a whole community microbial inoculation. To this end, we cross-inoculated microbial communities between two heavy metal-contaminated soils, with high and low extracellular enzyme activities, respectively. We measured extracellular phosphatase activity, a proxy for soil function, after self- and cross-inoculation of microbial communities into sterilized soils, and all activities were normalized to non-inoculated controls. We found that inoculation increased phosphatase activity in the soils. For soils treated with different inocula, we found significant differences in the microbial community compositions but no significant differences in the extracellular phosphatase activities normalized to their respective sterilized, non-inoculated controls (4.7 ± 1.8 and 3.3 ± 0.5 for soils inoculated with microbial communities from 146 to 43, respectively). On the other hand, normalized phosphatase activities between the two soil bases were significantly different (4.1 ± 0.12 and 1.9 ± 0.12 for soil bases 146 and 43, respectively) regardless of the source of the inoculum that did not vary between soil bases. The results indicate that the abiotic properties of the soils were a significant predictor for phosphatase activity but not for the end-point composition of the microbial community. The findings suggest that targeted microbial inocula from metal contaminated soils can increase phosphatase activity, and likely soil functioning in general, but the degree to which this happens depends on the abiotic environment, in this case, metal contamination.
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Affiliation(s)
- Jay Prakash Singh
- Department of Earth and Environmental Science, Montclair State University, Montclair, NJ, USA
| | - Eleanor U Ojinnaka
- Department of Chemistry and Biochemistry, Montclair State University, Montclair, NJ, USA
| | | | - Nina M Goodey
- Department of Chemistry and Biochemistry, Montclair State University, Montclair, NJ, USA.
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Zhang X, Gao Y, Zang P, Zhao Y, He Z, Zhu H, Song S, Zhang L. Study on the simultaneous degradation of five pesticides by Paenibacillus polymyxa from Panax ginseng and the characteristics of their products. Ecotoxicol Environ Saf 2019; 168:415-422. [PMID: 30399540 DOI: 10.1016/j.ecoenv.2018.10.093] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 10/17/2018] [Accepted: 10/24/2018] [Indexed: 06/08/2023]
Abstract
The quality and safety of ginseng products were seriously affected due to the slow metabolism and long-term residual pesticides in ginseng. Microbial degradation is an effective method to degrade pesticide residues. In this study, ginseng endophytic Paenibacillus polymyxa was used to degrade pesticide residues. A method of simultaneous determination of fluazinam, BHC, PCNB, chlorpyrifos and DDT in ginseng roots and ginseng stems and leaves by GC was established. The sample was extracted with n-hexane and purified by Florisil solid phase extraction column. The limit of quantitation was 0.01 μg mL-1, the linear relationship was good (r ≥ 0.9901). 7 days after inoculated with P. polymyxa, the degradation rates of fluazinam, BHC, PCNB, chlorpyrifos, and DDT in the medium were 94.77%, 70.34%, 77.92%, 78.30%, 66.70%, respectively (P < 0.05). The safety of 5 pesticide degradation products was investigated by GC-MS. The results showed that after 7 days degradation, the main degradation products were alkanes, which are non-toxic and can't cause secondary pollution to the environment. The actual degradation results were verified by field experiments. The results indicated that after sprayed 5 times with P. polymyxa, the degradation rates of fluazinam, BHC, PCNB, chlorpyrifos and DDT in the ginseng roots were 66.07%, 46.24%, 21.05%, 72.40%, 54.21%, respectively (P < 0.05). The degradation rates in ginseng stems and leaves were 74.18%, 55.61%, 73.65%, 58.13%, 46.91%, respectively (P < 0.05). The results indicated that Paenibacillus polymyxa was an effective degradation strain of 5 pesticides.
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Affiliation(s)
- Xue Zhang
- College of Traditional Chinese Medicine, Jilin Agricultural University, Chang Chun 130118, China.
| | - Yugang Gao
- College of Traditional Chinese Medicine, Jilin Agricultural University, Chang Chun 130118, China.
| | - Pu Zang
- College of Traditional Chinese Medicine, Jilin Agricultural University, Chang Chun 130118, China
| | - Yan Zhao
- College of Traditional Chinese Medicine, Jilin Agricultural University, Chang Chun 130118, China
| | - Zhongmei He
- College of Traditional Chinese Medicine, Jilin Agricultural University, Chang Chun 130118, China
| | - Hongyan Zhu
- College of Traditional Chinese Medicine, Jilin Agricultural University, Chang Chun 130118, China
| | - Shengnan Song
- College of Traditional Chinese Medicine, Jilin Agricultural University, Chang Chun 130118, China
| | - Lianxue Zhang
- College of Traditional Chinese Medicine, Jilin Agricultural University, Chang Chun 130118, China
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