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Ruan W, Peng Y, Liao R, Man Y, Tai Y, Tam NFY, Zhang L, Dai Y, Yang Y. Removal, transformation and ecological risk assessment of pesticide in rural wastewater by field-scale horizontal flow constructed wetlands of treated effluent. WATER RESEARCH 2024; 256:121568. [PMID: 38593607 DOI: 10.1016/j.watres.2024.121568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/26/2024] [Accepted: 04/02/2024] [Indexed: 04/11/2024]
Abstract
Constructed wetlands (CWs) are widely used in sewage treatment in rural areas, but there are only a few studies on field-scale CWs in treating wastewater-borne pesticides. In this study, the treatment and metabolic transformation of 29 pesticides in rural domestic sewage by 10 field-scale horizontal flow CWs (HF-CWs), each with a treatment scale of 36‒5000 m3/d and operated for 2‒10 years, in Guangzhou, Southern China was investigated. The risk of pesticides in treated effluent and main factors influencing such risk were evaluated. Results demonstrated that HF-CWs could remove pesticides in sewage and reduce their ecological risk in effluent, but the degree varied among types of pesticides. Herbicides had the highest mean removal rate (67.35 %) followed by insecticides (60.13 %), and the least was fungicides (53.22 %). In terms of single pesticide compounds, the mean removal rate of butachlor was the highest (73.32 %), then acetochlor (69.41 %), atrazine (68.28 %), metolachlor (58.40 %), and oxadixyl (53.28 %). The overall removal rates of targeted pesticides in each HF-CWs ranged from 11 %‒57 %, excluding two HF-CWs showing increases in pesticides in treated effluent. Residues of malathion, phorate, and endosulfan in effluent had high-risks (RQ > 5). The pesticide concentration in effluent was mainly affected by that in influent (P = 0.042), and source control was the key to reducing risk. The main metabolic pathways of pesticide in HF-CWs were oxidation, with hydroxyl group to carbonyl group or to form sulfones, the second pathways by hydrolysis, aerobic condition was conducive to the transformation of pesticides. Sulfones were generally more toxic than the metabolites produced by hydrolytic pathways. The present study provides a reference on pesticides for the purification performance improvement, long-term maintenance, and practical sustainable application of field-scale HF-CWs.
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Affiliation(s)
- Weifeng Ruan
- Institute of Hydrobiology and Department of Ecology, Jinan University, Guangzhou 510632, China; Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Guangzhou, China
| | - Yanqin Peng
- Institute of Hydrobiology and Department of Ecology, Jinan University, Guangzhou 510632, China; Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Guangzhou, China
| | - Ruomei Liao
- Institute of Hydrobiology and Department of Ecology, Jinan University, Guangzhou 510632, China; Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Guangzhou, China
| | - Ying Man
- Institute of Hydrobiology and Department of Ecology, Jinan University, Guangzhou 510632, China; School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Yiping Tai
- Institute of Hydrobiology and Department of Ecology, Jinan University, Guangzhou 510632, China; Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Guangzhou, China.
| | - Nora Fung-Yee Tam
- School of Science and Technology, The Hong Kong Metropolitan University, Ho Man Tin, Kowloon 999077, Hong Kong, China
| | - Longzhen Zhang
- Institute of Hydrobiology and Department of Ecology, Jinan University, Guangzhou 510632, China
| | - Yunv Dai
- Institute of Hydrobiology and Department of Ecology, Jinan University, Guangzhou 510632, China; Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Guangzhou, China
| | - Yang Yang
- Institute of Hydrobiology and Department of Ecology, Jinan University, Guangzhou 510632, China; Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Guangzhou, China.
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Luong TT, Nguyen THT, Nguyen TD, Le VT, Pham THT, Ho TT, Nguyen NL. Degradation of Triazole Fungicides by Plant Growth-Promoting Bacteria from Contaminated Agricultural Soil. J Microbiol Biotechnol 2024; 34:56-64. [PMID: 37940179 PMCID: PMC10840487 DOI: 10.4014/jmb.2308.08037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/09/2023] [Accepted: 10/16/2023] [Indexed: 11/10/2023]
Abstract
The widespread application of triazole fungicides (TFs) in agricultural practices can result in the considerable accumulation of active compound residues in the soil and a subsequent negative impact on the soil microbiota and crop health. In this study, we isolated three TF-degrading bacterial strains from contaminated agricultural soils and identified them as Klebsiella sp., Pseudomonas sp., and Citrobacter sp. based on analysis of morphological characteristics and 16S rRNA gene sequences. The strains used three common TFs, namely hexaconazole, difenoconazole, and propiconazole, as their only sources of carbon and energy for growth in a liquid mineral salt medium, with high concentrations (~ 500 mg/l) of each TF. In addition to the ability to degrade fungicides, the isolates also exhibited plant growth-promoting characteristics, such as nitrogen fixation, indole acetic acid production, phosphate dissolution, and cellulose degradation. The synergistic combination of three bacterial isolates significantly improved plant growth and development with an increased survival rate (57%), and achieved TF degradation ranging from 85.83 to 96.59% at a concentration of approximately 50 mg/kg of each TF within 45 days in the soil-plant system. Based on these findings, the three strains and their microbial consortium show promise for application in biofertilizers, to improve soil health and facilitate optimal plant growth.
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Affiliation(s)
- Thi Tham Luong
- Da Lat Nuclear Research Institute, 01 Nguyen Tu Luc, Da Lat 66106, Lam Dong, Vietnam
| | - Thi Hong Tham Nguyen
- Da Lat Nuclear Research Institute, 01 Nguyen Tu Luc, Da Lat 66106, Lam Dong, Vietnam
| | - Tien Dat Nguyen
- Da Lat Nuclear Research Institute, 01 Nguyen Tu Luc, Da Lat 66106, Lam Dong, Vietnam
| | - Van Toan Le
- Da Lat Nuclear Research Institute, 01 Nguyen Tu Luc, Da Lat 66106, Lam Dong, Vietnam
| | - Thi Hong Trang Pham
- Institute for Global Health Innovations, Duy Tan University, Da Nang 550000, Vietnam
- Biotechnology Department, College of Medicine and Pharmacy, Duy Tan University, Da Nang 550000, Vietnam
| | - Thanh-Tam Ho
- Institute for Global Health Innovations, Duy Tan University, Da Nang 550000, Vietnam
- Biotechnology Department, College of Medicine and Pharmacy, Duy Tan University, Da Nang 550000, Vietnam
| | - Ngoc-Loi Nguyen
- Institute of Oceanology, Polish Academy of Sciences, Powstancow Warszawy 55, Sopot 81-712, Poland
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Sliti A, Singh V, Ibal JC, Jeong M, Shin JH. Impact of propiconazole fungicide on soil microbiome (bacterial and fungal) diversity, functional profile, and associated dehydrogenase activity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:8240-8253. [PMID: 38175519 DOI: 10.1007/s11356-023-31643-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 12/17/2023] [Indexed: 01/05/2024]
Abstract
Pesticides, protect crops but can harm the environment and human health when used without caution. This study evaluated the impact of propiconazole, a fungicide that acts on fungal cell membranes, on soil microbiome abundance, diversity, and functional profile, as well as soil dehydrogenase activity (DHA). The study conducted microcosm experiments using soil samples treated with propiconazole and employed next-generation sequencing (MiSeq) and chromatographic approaches (GC-MS/MS) to analyze the shift in microbial communities and propiconazole level, respectively. The results showed that propiconazole significantly altered the distribution of microbial communities, with notable changes in the abundance of various bacterial and fungal taxa. Among soil bacterial communities, the relative abundance of Proteobacteria and Planctomycetota increased, while that of Acidobacteria decreased after propiconazole treatment. In the fungal communities, propiconazole increased the abundance of Ascomycota and Basidiomycota in the treated soil, while that of Mortierellomycota was reduced. Fungicide application further triggered a significant decrease in DHA over time. Analysis of the functional profile of bacterial communities showed that propiconazole significantly affected bacterial cellular and metabolic pathways. The carbon degradation pathway was upregulated, indicating the microbial detoxification of the contaminant in the treated soil. Our findings suggest that propiconazole application has a discernible impact on soil microbial communities, which could have long-term consequences for soil health, quality, and function.
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Affiliation(s)
- Amani Sliti
- Department of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Vineet Singh
- Department of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Jerald Conrad Ibal
- Department of Biological Sciences, Idaho State University, Pocatello, ID, 83209, USA
| | - Minsoo Jeong
- Department of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Jae-Ho Shin
- Department of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea.
- NGS Core Facility, Kyungpook National University, Daegu, 41566, Republic of Korea.
- Department of Integrative Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea.
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Satapute P, De Britto S, Hadimani S, Abdelrahman M, Alarifi S, Govind SR, Jogaiah S. Bacterial chemotaxis of herbicide atrazine provides an insight into the degradation mechanism through intermediates hydroxyatrazine, N-N-isopropylammelide, and cyanuric acid compounds. ENVIRONMENTAL RESEARCH 2023; 237:117017. [PMID: 37652220 DOI: 10.1016/j.envres.2023.117017] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/20/2023] [Accepted: 08/28/2023] [Indexed: 09/02/2023]
Abstract
In recent times, the herbicide atrazine (ATZ) has been commonly used before and after the cultivation of crop plants to manage grassy weeds. Despite its effect, the toxic residues of ATZ affect soil fertility and crop yield. Hence, the current study is focused on providing insight into the degradation mechanism of the herbicide atrazine through bacterial chemotaxis involving intermediates responsive to degradation. A bacterium was isolated from ATZ-contaminated soil and identified as Pseudomonas stutzeri based on its morphology, biochemical and molecular characterization. Upon ultra-performance liquid chromatography analysis, the free cells of isolated bacterium strain was found to utilize 174 μg/L of ATZ after 3-days of incubation on a mineral salt medium containing 200 μg/L of ATZ as a sole carbon source. It was observed that immobilized based degradation of ATZ yielded 198 μg/L and 190 μg/L by the cells entrapped with silica beads and sponge, respectively. Furthermore, the liquid chromatography-mass spectroscopy revealed that the secretion of three significant metabolites, namely, cyanuric acid, hydroxyatrazine and N- N-Isopropylammelide is responsive to the biodegradation of ATZ by the bacterium. Collectively, this research demonstrated that bacterium strains are the most potent agent for removing toxic pollutants from the environment, thereby enhancing crop yield and soil fertility with long-term environmental benefits.
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Affiliation(s)
- Praveen Satapute
- Laboratory of Plant Healthcare and Diagnostics, P.G. Department of Biotechnology and Microbiology, Karnatak University, Dharwad, 580003, Karnataka, India
| | - Savitha De Britto
- Division of Biological Sciences, School of Science and Technology, University of Goroka, Goroka, 441, Papua New Guinea
| | - Shiva Hadimani
- Laboratory of Plant Healthcare and Diagnostics, P.G. Department of Biotechnology and Microbiology, Karnatak University, Dharwad, 580003, Karnataka, India
| | | | - Saud Alarifi
- Department of Zoology, College of Science, King Saud University, PO Box 2455, Riyadh, 11451, Saudi Arabia
| | | | - Sudisha Jogaiah
- Laboratory of Plant Healthcare and Diagnostics, P.G. Department of Biotechnology and Microbiology, Karnatak University, Dharwad, 580003, Karnataka, India; Department of Environmental Science, Central University of Kerala, Tejaswini Hills, Periye (PO), 671316, Kasaragod (DT), Kerala, India.
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Gao J, Li X, Fu R, Li Y. Mechanism analysis and improved molecular modification: Design of high efficiency and environmentally friendly triazole fungicide substitutes. CHEMOSPHERE 2023:139150. [PMID: 37290508 DOI: 10.1016/j.chemosphere.2023.139150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/03/2023] [Accepted: 06/05/2023] [Indexed: 06/10/2023]
Abstract
The adverse effects of triazole fungicides (TFs) on the soil and the environmental damage caused by their residues have attracted the attention of the international community. To effectively prevent and control the above problems, this paper designed 72 substitutes of TFs with significantly better molecular functionality (>40%) using Paclobutrazol (PBZ) as the template molecule. Then, the comprehensive scores for environmental effects calculated after normalization by "extreme value method-entropy weight method-weighted average method" was the dependent variable, the structural parameters of TFs molecules was the independent variable (PBZ-214 was the template molecule) to construct the 3D-QSAR model of integrated environmental effects of TFs with high degradability, low bioenrichment, low endocrine disruption effects, and low hepatotoxicity and designed 46 substitutes of TFs with significantly better comprehensive environmental effects (>20%). After confirming the above effects of TFs and assessing human health risk and the universality of biodegradation and endocrine disruption, we screened PBZ-319-175 as the eco-friendly substitute of TF, which had high efficiency (improved functionality) and better environmental effects than those of the target molecule by 51.63% and 36.09%, respectively. Finally, the results of the molecular docking analysis showed that non-bonding interactions (hydrogen bonding, electrostatic, or polar force) predominantly affected the association between PBZ-319-175 and its biodegradable protein, and the hydrophobic effect of the amino acids distributed around PBZ-319-175 played a significant role. Additionally, we determined the microbial degradation path of PBZ-319-175 and found that the steric hindrance of the substituent group after molecular modification promoted its biodegradability. In this study, we enhanced molecular functionality twice and also reduce the major damage of TFs to the environment by performing iterative modifications. This paper provided theoretical support for the development and application of high-performance, eco-friendly substitutes of TFs.
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Affiliation(s)
- Jiaxuan Gao
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, China; MOE Key Laboratory of Resources and Environmental System Optimization, North China Electric Power University, Beijing, 102206, China.
| | - Xinao Li
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, China; MOE Key Laboratory of Resources and Environmental System Optimization, North China Electric Power University, Beijing, 102206, China.
| | - Rui Fu
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, China; MOE Key Laboratory of Resources and Environmental System Optimization, North China Electric Power University, Beijing, 102206, China.
| | - Yu Li
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, China; MOE Key Laboratory of Resources and Environmental System Optimization, North China Electric Power University, Beijing, 102206, China.
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Singh T, Srivastava N, Teklemariam AD, Mishra PK, Almuhayawi MS, Haque S, Harakeh S, Pal DB, Gupta VK. Kinetics investigation of phenolic pollutant degradation via Serratia marcescens ABHI 001 and its application in wastewater treatment. CHEMOSPHERE 2022; 309:136532. [PMID: 36152827 DOI: 10.1016/j.chemosphere.2022.136532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 08/29/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
In the present work, kinetic study has been conducted in order to effectively eliminate the p-cresol from wastewater employing isolated bacterial strain Serratia marcescens ABHI001 under batch shake flasks in the concentration varying from 50 to 500 mg/L. Further, effects of various parameters including p-cresol concentration, inoculum dosage, temperature, pH and agitation have been investigated. It was found that 10% v/v inoculum of 24 h age, was effective in degrading p-cresol. Beside this, it was noticed that the concentration of P-cresol above 100 mg/L exhibited an inhibitory effect. The maximum specific growth rate (μmax) was obtained to be 0.360 h-1 for 100 mgL-1 concentration. Further, the experimental results were well fitted with Halden's and Andrew's models and kinetic parameters μmax, KS and Ki in case of Haldane model were calculated to be 0.9697 h-1, 88.07 mgL-1 and 219.9 mgL-1, respectively whereas the corresponding values in case of Andrews's constants were 0.6917 h-1, 62.83 mgL-1 and 307.4 mgL-1, respectively. The yield coefficient for the growth on p-cresol was found to be 0.82.
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Affiliation(s)
- Tripti Singh
- Department of Biotechnology, GLA University, Mathura, 281406, U.P., India; Department of Chemical Engineering & Technology, IIT (BHU) Varanasi, Varanasi-221005, U.P., India
| | - Neha Srivastava
- Department of Chemical Engineering & Technology, IIT (BHU) Varanasi, Varanasi-221005, U.P., India
| | - Addisu Demeke Teklemariam
- Department of Biological Science, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - P K Mishra
- Department of Chemical Engineering & Technology, IIT (BHU) Varanasi, Varanasi-221005, U.P., India
| | - Mohammed Saad Almuhayawi
- Department of Medical Microbiology and Parasitology Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Shafiul Haque
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan, 45142, Saudi Arabia
| | - Steve Harakeh
- King Fahd Medical Research Center, and Yousef Abdullatif Jameel Chair of Prophetic Medicine Application, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Dan Bahadur Pal
- Department of Chemical Engineering, Birla Institute of Technology, Mesra, Ranchi-835215, Jharkhand, India; Department of Chemical Engineering, Harcourt Butler Technical University, Nawabganj Kanpur, 208002, Uttar Pradesh India.
| | - Vijai Kumar Gupta
- Biorefining and Advanced Materials Research Center, SRUC, Kings Buildings, West Mains Road, Edinburgh EH9 3JG, UK; Center for Safe and Improved Food, SRUC, Kings Buildings, West Mains Road, Edinburgh EH9 3JG, UK.
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Bech TB, Stehrer T, Jakobsen R, Badawi N, Schostag MD, Hinsby K, Aamand J, Hellal J. Degradation potential of MCPA, metolachlor and propiconazole in the hyporheic sediments of an agriculturally impacted river. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 834:155226. [PMID: 35461929 DOI: 10.1016/j.scitotenv.2022.155226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 04/06/2022] [Accepted: 04/08/2022] [Indexed: 06/14/2023]
Abstract
Hyporheic sediments are influenced by physical, biological, and chemical processes due to the interactions with river water and has been shown to play an important role in the environmental fate of pesticides. Therefore, this study evaluated the bacterial degradation potential of MCPA, metolachlor and propiconazole in hyporheic sediments sampled along a 20 km long stretch of an agriculturally impacted river dominated primarily by water losing conditions. Water physicochemical parameters in the river and nearby groundwater wells were assessed along with pesticide sorption to sediments and bacterial community composition. Degradation and mineralisation batch experiments were set up from six locations (five water losing, one water gaining) using environmentally relevant concentrations of pesticides (10 μg kg-1). Highly variable DT50 values from 11 to 44 days for MCPA, 11-27 days for metolachlor (MTC) and 60-147 days for propiconazole were calculated based on ~140 day studies. Degradation of MTC led to accumulation of the transformation products MOA and MESA in batch experiments. Noteworthy, MESA was detected in the groundwater wells adjacent to the part of the river impacted by losing conditions suggesting that degradation processes in hyporheic sediments may lead to the formation of transformation products (TP) leaching towards groundwater. Further, from propiconazole was identified a persistent transformation product being different from 1,2,4-triazole. Specific calculated DT50 values could not the linked to bacterial diversity. However, generally all sediment samples were characterised by high bacterial diversity, where approximately 80% of the relative sequence abundances were < 1%, which may increase the likelihood of finding contaminant-degrading genes, thereby explaining the general high contaminant-degrading activity. The studied sediments revealed a high potential to degrade pesticides despite only being exposed to low diffuse pollutant concentrations that is similar to calculated DT50 values in agricultural soils.
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Affiliation(s)
- Tina B Bech
- Geological Survey of Denmark and Greenland, Department of Geochemistry, DK-1350 Copenhagen, Denmark.
| | - Thomas Stehrer
- Proteomics Service Laboratory, Institute of Physiology and Institute of Molecular Genetics, Czech Academy of Sciences, 142 00 Prague, Czech Republic
| | - Rasmus Jakobsen
- Geological Survey of Denmark and Greenland, Department of Geochemistry, DK-1350 Copenhagen, Denmark
| | - Nora Badawi
- Geological Survey of Denmark and Greenland, Department of Geochemistry, DK-1350 Copenhagen, Denmark
| | - Morten D Schostag
- Technical University of Denmark, Department of Biotechnology and Biomedicine, 2800 Kgs. Lyngby, Denmark
| | - Klaus Hinsby
- Geological Survey of Denmark and Greenland, Department of Hydrology, DK-1350 Copenhagen, Denmark
| | - Jens Aamand
- Geological Survey of Denmark and Greenland, Department of Geochemistry, DK-1350 Copenhagen, Denmark
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Zhang J, Zhou X, Zhou Q, Zhang J, Liang J. A study of highly efficient phenol biodegradation by a versatile Bacillus cereus ZWB3 on aerobic condition. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 86:355-366. [PMID: 35906912 DOI: 10.2166/wst.2022.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
As one of the organic pollutants in industrial wastewater, phenol seriously threatens the environment and human health. Among various methods, microbial degradation of phenol possesses the advantages of nontoxicity and no secondary pollution. Therefore, search for microbial resources that can efficiently degrade phenol has become an important issue. In this study, a strain that could efficiently degrade phenol was isolated. The strain was identified as Bacillus cereus based on its morphology, physiological and biochemical features and 16S rRNA sequence analysis. The strain can completely degrade phenol up to 1,500 mg/L within 26 h (57.7 mg·L-1·h-1), under the optimum conditions, faster compared with the known degrading bacteria. The strain could efficiently remove phenol at a wide range of temperatures (22-37 °C) and pH (7-9), and Mn2+ and Zn2+ stress. Interestingly, this strain displayed the potential on microthermal environment, which could degrade 1,200 mg/L phenol within 36 h at 22 °C. Further, the strain had capacity that used a variety of aromatic compounds as the sole carbon source for growth. This study shows a useful biodegradation route on the wastewater treatment under high phenol concentration conditions, providing alternatives for environmental remediation.
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Affiliation(s)
- Jianfeng Zhang
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China E-mail:
| | - Xu Zhou
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China E-mail:
| | - Qi Zhou
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China E-mail:
| | - Jiejing Zhang
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China E-mail:
| | - Jing Liang
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China E-mail:
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Wageed M, El-Sherbiny GM, Sharaf MH, Moghannem SA, Hamzawy AH. Enhanced removal of fifteen pesticide mixture by a single bacterial strain using response surface methodology and its application in raw milk. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2021; 19:1277-1286. [PMID: 34900265 PMCID: PMC8617149 DOI: 10.1007/s40201-021-00683-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 05/20/2021] [Indexed: 06/14/2023]
Abstract
PURPOSE Environmental contamination with various pesticides accompanied by uncontrolled use contributes to severe ecological and health problems. Although extensive research was conducted on pesticides degradation, very few reports have demonstrated the degradation of mixed pesticides. Consequently, this study aimed to evaluate the removal efficacy of highly potent bacterial isolate for pesticide mixture under optimal culture conditions, followed by their application in milk. METHODS Isolation and selection of bacterial isolates were performed from 40 milk samples by enrichment culture technique and were screened to obtain highly potent bacterial strain identified by 16 S rDNA analysis. The statistics-based experimental designs were applied to optimize the culture conditions towards the best degradation of pesticides mixture, followed by subsequent utilization in milk. The degradation ratio of pesticides was analyzed using gas chromatography-mass spectrometry. RESULTS In this study, a bacterial strain S6A identified as Bacillus subtilis-mw1 efficiently eliminated environmental contaminants from different groups of pesticide residues. The statistical optimization showcased optimum settings that accomplished the highest pesticide mixture degradation (61.59 %). The application experiment manifested that degradation of pesticide mixtures of sterile milk (STM) was relatively faster than non-sterile milk (NSTM). CONCLUSIONS The obtained results assist in eliminating environmental contamination with various groups of pesticide residues. Furthermore, it can be employed in reducing pesticide residues that cause milk contamination to increase safety and quality.Graphical abstract. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s40201-021-00683-0.
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Affiliation(s)
- Mohamed Wageed
- Agricultural Research Center, Central Laboratory of residue Analysis of Pesticides and Heavy Metals in Foods (QCAP Egypt), Ministry of Agriculture and Land Reclamation, Giza, Cairo Egypt
| | - Gamal M. El-Sherbiny
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo, 11884 Egypt
| | - Mohammed H. Sharaf
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo, 11884 Egypt
| | - Saad A. Moghannem
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo, 11884 Egypt
| | - Ahmed H. Hamzawy
- Agricultural Research Center, Central Laboratory of residue Analysis of Pesticides and Heavy Metals in Foods (QCAP Egypt), Ministry of Agriculture and Land Reclamation, Giza, Cairo Egypt
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Morya R, Salvachúa D, Thakur IS. Burkholderia: An Untapped but Promising Bacterial Genus for the Conversion of Aromatic Compounds. Trends Biotechnol 2020; 38:963-975. [PMID: 32818444 DOI: 10.1016/j.tibtech.2020.02.008] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 02/18/2020] [Accepted: 02/18/2020] [Indexed: 11/18/2022]
Abstract
Burkholderia, a bacterial genus comprising more than 120 species, is typically reported to inhabit soil and water environments. These Gram-negative bacteria harbor a variety of aromatic catabolic pathways and are thus potential organisms for bioremediation of sites contaminated with aromatic pollutants. However, there are still substantial gaps in our knowledge of these catabolic processes that must be filled before these pathways and organisms can be harnessed for biotechnological applications. This review presents recent discoveries on the catabolism of monoaromatic and polycyclic aromatic hydrocarbons, as well as of heterocyclic compounds, by a diversity of Burkholderia strains. We also present a perspective on the beneficial features of Burkholderia spp. and future directions for their potential utilization in the bioremediation and bioconversion of aromatic compounds.
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Affiliation(s)
- Raj Morya
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Davinia Salvachúa
- National Bioenergy Center, National Renewable Energy Laboratory, Golden, CO 80401, USA.
| | - Indu Shekhar Thakur
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India.
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Satapute P, Paidi MK, Kurjogi M, Jogaiah S. Physiological adaptation and spectral annotation of Arsenic and Cadmium heavy metal-resistant and susceptible strain Pseudomonas taiwanensis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 251:555-563. [PMID: 31108288 DOI: 10.1016/j.envpol.2019.05.054] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 05/03/2019] [Accepted: 05/12/2019] [Indexed: 06/09/2023]
Abstract
In the present study, the 16S-rRNA sequencing of heavy metal-resistant and susceptible bacterial strains isolated from the industrial and agriculture soil showed resemblance with Pseudomonas taiwanensis. Based on the growth rate, two bacterial strains SJPS_KUD54 and KUD-MBBT4 exhibited 10 ppm tolerance to Arsenic and Cadmium. These two heavy metals caused, a significant increase in stress enzymes like superoxide dismutase, catalase and glutathione S-transferase activities in SJPS_KUD54 when compared to KUD-MBBT4. Following heavy metal treatment, the atomic-force-microscopy observations showed no change in the cell-wall of SJPS_KUD54, whereas the cell-wall of KUD-MBBT4 got ruptured. Moreover, the protein-profile of SJPS_KUD54 treated with heavy metals exhibited varied patterns in comparison with untreated control. In addition, the accumulation of hydroxyl, thiol and amides were found in the SJPS_KUD54 relative to its control. Furthermore, the resistant SJPS_KUD54 strain showed a remarkable bioaccumulation properties to both Arsenic and Cadmium. Thus, it is inferred that the growth rate, stress enzymes and functional-groups play a significant role in the physiological-adaption of SJPS_KUD54 during stress conditions, which is positively involved in the prevention or repair mechanism for reducing the risks caused by heavy metal stress.
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Affiliation(s)
- Praveen Satapute
- Laboratory of Plant Healthcare and Diagnostics, P.G. Department of Biotechnology and Microbiology, Karnatak University, Dharwad, Karnataka 580003, India
| | - Murali Krishna Paidi
- Laboratory of Plant Healthcare and Diagnostics, P.G. Department of Biotechnology and Microbiology, Karnatak University, Dharwad, Karnataka 580003, India
| | - Mahantesh Kurjogi
- Laboratory of Plant Healthcare and Diagnostics, P.G. Department of Biotechnology and Microbiology, Karnatak University, Dharwad, Karnataka 580003, India
| | - Sudisha Jogaiah
- Laboratory of Plant Healthcare and Diagnostics, P.G. Department of Biotechnology and Microbiology, Karnatak University, Dharwad, Karnataka 580003, India.
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Satapute P, Kamble MV, Adhikari SS, Jogaiah S. Influence of triazole pesticides on tillage soil microbial populations and metabolic changes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 651:2334-2344. [PMID: 30336423 DOI: 10.1016/j.scitotenv.2018.10.099] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 10/04/2018] [Accepted: 10/08/2018] [Indexed: 06/08/2023]
Abstract
Pesticides are generally applied to agricultural soil to control crop diseases, with the critical goal of preventing yield loss and optimizing economic returns. However, the excessive utilization of pesticides in agriculture is a severe environmental and human health problem. In the present study, effect of triazole based fungicide, propiconazole on soil physicochemical properties, stimulatory impact of propiconazole residue on soil microbial communities and soil enzyme activities (phosphatise and urease) in contaminated red sandy loam and deep black soils of paddy (Oryza sativa L.) fields at different concentrations were evaluated. The liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS) analysis showed high levels of propiconazole residues of 434 and 426 ng g-1 in red sandy loam and deep black soils, respectively. A total of 27 bacterial and 18 fungal strains were isolated from propiconazole-contaminated soils, identified by molecular markers and had their sequences deposited in the GenBank. We observed a pronounced increase in soil microbial growth, and urease and phosphatase activities at lower propiconazole concentrations up to 2 weeks post-treatment. On the contrary, the microbial growth and urease and phosphatase activities were relentlessly reduced at higher propiconazole concentrations and a long incubation period after 2 to 4 weeks of post-treatment. Overall, it was concluded that the concentration-dependency and incubation period of propiconazole would enhance the growth and activity of soil microbes and enzymes respectively and the higher application will be detrimental to the soil health.
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Affiliation(s)
- Praveen Satapute
- Plant Healthcare and Diagnostic Center, Department of Studies in Biotechnology and Microbiology, Karnatak University, Dharwad 580 003, India
| | - Milan V Kamble
- Plant Healthcare and Diagnostic Center, Department of Studies in Biotechnology and Microbiology, Karnatak University, Dharwad 580 003, India
| | - Shivakantkumar S Adhikari
- Plant Healthcare and Diagnostic Center, Department of Studies in Biotechnology and Microbiology, Karnatak University, Dharwad 580 003, India
| | - Sudisha Jogaiah
- Plant Healthcare and Diagnostic Center, Department of Studies in Biotechnology and Microbiology, Karnatak University, Dharwad 580 003, India.
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Long X, Wang D, Zou Y, Tian J, Tian Y, Liao X. Glycine betaine enhances biodegradation of phenol in high saline environments by the halophilic strain Oceanobacillussp. PT-20. RSC Adv 2019; 9:29205-29216. [PMID: 35528440 PMCID: PMC9071815 DOI: 10.1039/c9ra05163e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 09/11/2019] [Indexed: 11/21/2022] Open
Abstract
Glycine betaine enhanced the biodegradation of phenol by halophilic strain PT-20 in high salinity conditions.
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Affiliation(s)
- Xiufeng Long
- Department of Biomass and Leather Engineering
- Sichuan University
- Chengdu 610065
- PR China
| | - Denggang Wang
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering
- South China University of Technology
- Guangzhou 510006
- PR China
| | - Yuqi Zou
- Department of Biomass and Leather Engineering
- Sichuan University
- Chengdu 610065
- PR China
| | - Jiewei Tian
- Department of Biomass and Leather Engineering
- Sichuan University
- Chengdu 610065
- PR China
| | - Yongqiang Tian
- Department of Biomass and Leather Engineering
- Sichuan University
- Chengdu 610065
- PR China
- National Engineering Laboratory for Clean Technology of Leather Manufacture
| | - Xuepin Liao
- Department of Biomass and Leather Engineering
- Sichuan University
- Chengdu 610065
- PR China
- National Engineering Laboratory for Clean Technology of Leather Manufacture
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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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