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Li L, Wang Y, Liu L, Gao C, Ru S, Yang L. Occurrence, ecological risk, and advanced removal methods of herbicides in waters: a timely review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:3297-3319. [PMID: 38095790 DOI: 10.1007/s11356-023-31067-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 11/12/2023] [Indexed: 01/19/2024]
Abstract
Coastal pollution caused by the importation of agricultural herbicides is one of the main environmental problems that directly affect the coastal primary productivity and even the safety of human seafood. It is urgent to evaluate the ecological risk objectively and explore feasible removal strategies. However, existing studies focus on the runoff distribution and risk assessment of specific herbicides in specific areas, and compared with soil environment, there are few studies on remediation methods for water environment. Therefore, we systematically reviewed the current situation of herbicide pollution in global coastal waters and the dose-response relationships of various herbicides on phytoplankton and higher trophic organisms from the perspective of ecological risks. In addition, we believe that compared with the traditional single physical and chemical remediation methods, biological remediation and its combined technology are the most promising methods for herbicide pollution remediation currently. Therefore, we focus on the application prospects, challenges, and management strategies of new bioremediation systems related to biology, such as constructed wetlands, membrane bioreactor processes, and microbial co-metabolism, in order to provide more advanced methods for reducing herbicide pollution in the water environment.
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Affiliation(s)
- Lingxiao Li
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Yunsheng Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Lijuan Liu
- Shandong Marine Resource and Environment Research Institute, Shandong Key Laboratory of Marine Ecological Restoration, Yantai, Shandong, China
| | - Chen Gao
- Shandong Marine Resource and Environment Research Institute, Shandong Key Laboratory of Marine Ecological Restoration, Yantai, Shandong, China
| | - Shaoguo Ru
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Liqiang Yang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China.
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Ma Y, Wang J, Liu Y, Wang X, Zhang B, Zhang W, Chen T, Liu G, Xue L, Cui X. Nocardioides: "Specialists" for Hard-to-Degrade Pollutants in the Environment. Molecules 2023; 28:7433. [PMID: 37959852 PMCID: PMC10649934 DOI: 10.3390/molecules28217433] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/24/2023] [Accepted: 11/01/2023] [Indexed: 11/15/2023] Open
Abstract
Nocardioides, a genus belonging to Actinomycetes, can endure various low-nutrient conditions. It can degrade pollutants using multiple organic materials such as carbon and nitrogen sources. The characteristics and applications of Nocardioides are described in detail in this review, with emphasis on the degradation of several hard-to-degrade pollutants by using Nocardioides, including aromatic compounds, hydrocarbons, haloalkanes, nitrogen heterocycles, and polymeric polyesters. Nocardioides has unique advantages when it comes to hard-to-degrade pollutants. Compared to other strains, Nocardioides has a significantly higher degradation rate and requires less time to break down substances. This review can be a theoretical basis for developing Nocardioides as a microbial agent with significant commercial and application potential.
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Affiliation(s)
- Yecheng Ma
- College of Biotechnology and Pharmaceutical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Jinxiu Wang
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Lanzhou 730000, China
- Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Yang Liu
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Lanzhou 730000, China
- State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Xinyue Wang
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Lanzhou 730000, China
- State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Binglin Zhang
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Lanzhou 730000, China
- State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Wei Zhang
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Lanzhou 730000, China
- Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Tuo Chen
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Lanzhou 730000, China
- State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Guangxiu Liu
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Lanzhou 730000, China
- Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Lingui Xue
- College of Biotechnology and Pharmaceutical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Xiaowen Cui
- College of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China
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3
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Ahmad S, Chandrasekaran M, Ahmad HW. Investigation of the Persistence, Toxicological Effects, and Ecological Issues of S-Triazine Herbicides and Their Biodegradation Using Emerging Technologies: A Review. Microorganisms 2023; 11:2558. [PMID: 37894216 PMCID: PMC10609637 DOI: 10.3390/microorganisms11102558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/09/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
S-triazines are a group of herbicides that are extensively applied to control broadleaf weeds and grasses in agricultural production. They are mainly taken up through plant roots and are transformed by xylem tissues throughout the plant system. They are highly persistent and have a long half-life in the environment. Due to imprudent use, their toxic residues have enormously increased in the last few years and are frequently detected in food commodities, which causes chronic diseases in humans and mammals. However, for the safety of the environment and the diversity of living organisms, the removal of s-triazine herbicides has received widespread attention. In this review, the degradation of s-triazine herbicides and their intermediates by indigenous microbial species, genes, enzymes, plants, and nanoparticles are systematically investigated. The hydrolytic degradation of substituents on the s-triazine ring is catalyzed by enzymes from the amidohydrolase superfamily and yields cyanuric acid as an intermediate. Cyanuric acid is further metabolized into ammonia and carbon dioxide. Microbial-free cells efficiently degrade s-triazine herbicides in laboratory as well as field trials. Additionally, the combinatorial approach of nanomaterials with indigenous microbes has vast potential and considered sustainable for removing toxic residues in the agroecosystem. Due to their smaller size and unique properties, they are equally distributed in sediments, soil, water bodies, and even small crevices. Finally, this paper highlights the implementation of bioinformatics and molecular tools, which provide a myriad of new methods to monitor the biodegradation of s-triazine herbicides and help to identify the diverse number of microbial communities that actively participate in the biodegradation process.
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Affiliation(s)
- Sajjad Ahmad
- Environmental Sustainability & Health Institute (ESHI), City Campus, School of Food Science & Environmental Health, Technological University Dublin, Grangegorman Lower, D07 EWV4 Dublin, Ireland
- Key Laboratory of Integrated Pest Management of Crop in South China, Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Agriculture and Rural Affairs, Ministry of Education, South China Agricultural University, Guangzhou 510642, China
- Department of Entomology, Faculty of Agriculture, University of Agriculture, Faisalabad 38000, Pakistan
| | - Murugesan Chandrasekaran
- Department of Food Science and Biotechnology, Sejong University, Neungdong-ro 209, Seoul 05006, Republic of Korea;
| | - Hafiz Waqas Ahmad
- Department of Food Engineering, Faculty of Agricultural Engineering & Technology, University of Agriculture, Faisalabad 38000, Pakistan;
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4
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Liu L, Zhang Y, Chen Q, Shen Q, Li L, Cao C, Li R, Jiang J, Liu J. Nocardioides potassii sp. nov., isolated from weathered potash tailings soil. Int J Syst Evol Microbiol 2023; 73. [PMID: 37486345 DOI: 10.1099/ijsem.0.005967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2023] Open
Abstract
A Gram-positive, aerobic actinomycete, designated strain KLBMP 9356T, was isolated from weathered potash tailings soil sampled in Xuzhou, Jiangsu Province, PR China. The colonies were cream-coloured, convex and rounded. The optimal growth conditions of strain KLBMP 9356T were 1 % (w/v) NaCl, 28 °C and pH 7. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain KLBMP 9356T showed the highest similarity to Nocardioides zhouii CGMCC 1.11084T (98.9 %) and Nocardioides glacieisoli CGMCC 1.11097T (98.7 %). Results from two tree-making algorithms supported the position that strain KLBMP 9356T forms a stable clade with N. zhouii CGMCC 1.11084T and N. glacieisoli CGMCC 1.11097T. Strain KLBMP 9356T exhibited low digital DNA-DNA hybridization values with N. zhouii CGMCC 1.11084T (27.6 %) and N. glacieisoli CGMCC 1.11097T (31.4 %). The average nucleotide identity values between strain KLBMP 9356T and N. zhouii CGMCC 1.11084T and N. glacieisoli CGMCC 1.11097T were 83.8% and 85.9%, respectively. The peptidoglycan in the cell wall of the novel strain was ll-2,6-diaminopimelic acid and the predominant menaquinone was MK-8(H4). The major fatty acids (>10 %) were C17:1ω8c and C18:1ω9c. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, lyso-phospatidylglycerol and phosphatidylinositol. The genomic DNA G+C content was 71.6 mol%. Based on its morphological, chemotaxonomic and phylogenetic characteristics, strain KLBMP 9356T represents a novel species of the genus Nocardioides, for which the name Nocardioides potassii sp. nov. is proposed. The type strain is KLBMP 9356T (=CGMCC 4.7738T=NBRC 115493T).
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Affiliation(s)
- Lingxiao Liu
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, PR China
| | - Ya Zhang
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, PR China
| | - Qiuyu Chen
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, PR China
| | - Qi Shen
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, PR China
| | - Ludan Li
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, PR China
- The Key Laboratory of Microbial Resources of Xuzhou City, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, PR China
| | - Chengliang Cao
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, PR China
- The Key Laboratory of Microbial Resources of Xuzhou City, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, PR China
| | - Rongpeng Li
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, PR China
- The Key Laboratory of Microbial Resources of Xuzhou City, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, PR China
| | - Jihong Jiang
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, PR China
- The Key Laboratory of Microbial Resources of Xuzhou City, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, PR China
| | - Jinjuan Liu
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, PR China
- The Key Laboratory of Microbial Resources of Xuzhou City, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, PR China
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5
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Cai L, Zhang H, Dong B, Du J, Tian Y, Zhang F. Solar-enhanced bio-electro-Fenton driven by sediment microbial fuel cell for ametryn degradation in simulated seawater. JOURNAL OF HAZARDOUS MATERIALS 2023; 448:130980. [PMID: 36860054 DOI: 10.1016/j.jhazmat.2023.130980] [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: 09/27/2022] [Revised: 02/05/2023] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
In marine aquaculture areas, herbicides have been used to inhibit the wild growth of seaweed, which may seriously affect the ecological environment and food safety. Here the commonly applied ametryn was used as the representative pollutant, and solar enhanced bio-electro-Fenton driven in situ by sediment microbial fuel cell (SMFC) was proposed to degrade ametryn in simulated seawater. SMFC with γ-FeOOH-coated carbon felt cathode was operated under the simulated solar light (γ-FeOOH-SMFC), where two-electron oxygen reduction and activation of H2O2 occurred to promote the production of hydroxyl radicals at the cathode. Hydroxyl radicals, photo-generated holes, and anodic microorganism worked together to degrade ametryn with an initial concentration of 2 mg/L in the self-driven system. The removal efficiency of ametryn in γ-FeOOH-SMFC was 98.7 % during the operation period of 49 days, which was 6 times higher than that under natural degradation condition. When γ-FeOOH-SMFC was in the steady phase, oxidative species were continuously and efficiently generated. The maximum power density (Pmax) of γ-FeOOH-SMFC was 44.6 W/m3. According to the intermediate products of ametryn degradation in γ-FeOOH-SMFC, four possible pathways of ametryn degradation were proposed. This study provides an effective, cost-saving, and in situ treatment for refractory organics in seawater.
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Affiliation(s)
- Lu Cai
- School of Environment and State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing 100084, China
| | - Hanmin Zhang
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, China.
| | - Bin Dong
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China
| | - Jing Du
- Liaoning Ocean and Fisheries Science Research Institute, Dalian 116023, China
| | - Yu Tian
- Harbin Institute of Technology State Key Laboratory of Urban Water Resource and Environment, No 73 Huanghe Road, Nangang District, Harbin 150090, China
| | - Fang Zhang
- School of Environment and State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing 100084, China.
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6
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Nocardioides nematodiphilus sp. nov., isolated from rhizosphere of Arabidopsis thaliana. Int J Syst Evol Microbiol 2022; 72. [DOI: 10.1099/ijsem.0.005271] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
An actinobacterial strain, designated R-N-C8T, was isolated from the rhizosphere soil of Arabidopsis thaliana collected in Yunnan Province, south-west China. Based on the results of 16S rRNA gene sequence analysis, strain R-N-C8T had highest similarity to
Nocardioides terrae
CGMCC 1.7056T (96.5%),
Nocardioides opuntiae
KCTC 19804T (96.3%) and
Nocardioides currus
IB-3T (96.1%), and lower than 96.0 % similarity to other members of the genus
Nocardioides
. Phylogenetic trees based on 16S rRNA gene sequences indicated that strain R-N-C8T formed an isolated branch with
N. terrae
CGMCC 1.7056T and
N. opuntiae
KCTC 19804T. The polar lipids contained phosphatidylglycerol, diphosphatidylglycerol, one unidentified phosphoglycolipid and four unidentified phospholipids in the cellular membrane. The major fatty acids were identified as iso-C16 : 0, anteiso-C17 : 0, iso-C17 : 0, summed feature 9 (iso-C17 : 1 ω9c and/or C16 : 0 10-methyl) and iso-C15 : 0. The predominant respiratory quinone was MK-8(H4) and ll-diaminopimelic acid was the diagnostic diamino acid in the cell-wall peptidoglycan. The genomic DNA G+C content was 70.9 mol%. The orthologous average nucleotide identiy values between
N. terrae
CGMCC 1.7056T,
N. currus
IB-3T and strain R-N-C8T were 77.1 and 75.1 %, respectively. DNA–DNA hybridization values between
N. terrae
CGMCC 1.7056T,
N. currus
IB-3T and strain R-N-C8T were 20.7 and 19.9 % respectively. Data from phenotypic and genotypic analyses supported that strain R-N-C8T represents a new species of
Nocardioides
, for which the name Nocardioides nematodiphilus sp. nov. is proposed. The type strain is R-N-C8T (=CGMCC 1.18723T= KCTC 49528T).
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Nocardioides carbamazepini sp. nov., an ibuprofen degrader isolated from a biofilm bacterial community enriched on carbamazepine. Syst Appl Microbiol 2022; 45:126339. [PMID: 35714383 DOI: 10.1016/j.syapm.2022.126339] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 05/11/2022] [Accepted: 05/31/2022] [Indexed: 11/23/2022]
Abstract
From the metagenome of a carbamazepine amended selective enrichment culture the genome of a new to science bacterial species affiliating with the genus Nocardioides was reconstructed. From the same enrichment an aerobic actinobacterium, strain CBZ_1T, sharing 99.4% whole-genome sequence similarity with the reconstructed Nocardioides sp. bin genome was isolated. On the basis of 16S rRNA gene sequence similarity the novel isolate affiliated to the genus Nocardioides, with the closest relatives Nocardioides kongjuensis DSM19082T (98.4%), Nocardioides daeguensis JCM17460T (98.4%) and Nocardioides nitrophenolicus DSM15529T (98.2%). Using a polyphasic approach it was confirmed that the isolate CBZ_1T represents a new phyletic lineage within the genus Nocardioides. According to metagenomic, metatranscriptomic studies and metabolic analyses strain CZB_1T was abundant in both carbamazepine and ibuprofen enrichments, and harbors biodegradative genes involved in the biodegradation of pharmaceutical compounds. Biodegradation studies supported that the new species was capable of ibuprofen biodegradation. After 7 weeks of incubation, in mineral salts solution supplemented with glucose (3 g l-1) as co-substrate, 70% of ibuprofen was eliminated by strain CBZ_1T at an initial conc. of 1.5 mg l-1. The phylogenetic, phenotypic and chemotaxonomic data supported the classification of strain CBZ_1T to the genus Nocardioides, for which the name Nocardioides carbamazepini sp. nov. (CBZ_1T = NCAIM B.0.2663 = LMG 32395) is proposed. To the best of our knowledge, this is the first study that reports simultaneous genome reconstruction of a new to science bacterial species using metagenome binning and at the same time the isolation of the same novel bacterial species.
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Impact of Paenarthrobacter ureafaciens ZF1 on the soil enzyme activity and microbial community during the bioremediation of atrazine-contaminated soils. BMC Microbiol 2022; 22:146. [PMID: 35610563 PMCID: PMC9128208 DOI: 10.1186/s12866-022-02556-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 05/09/2022] [Indexed: 11/10/2022] Open
Abstract
Bioremediation of atrazine-contaminated soil is considered a safe and effective approach in removing contaminates from the soil. However, the effects of adding foreign organisms to assist bioremediation on soil environmental quality and ecosystem are unclear. Here, the ecological remediation potential of strain Paenarthrobacter ureafaciens ZF1 on atrazine-contaminated soil was investigated through miniature experiments using variations in soil enzymes and bacterial communities as indicators. The results showed that strain ZF1 accelerated atrazine degradation, which could completely degrade atrazine at concentrations of 100 mg·L− 1 atrazine within 2 h in liquid medium and could remove up to 99.3% of atrazine (100 mg·kg− 1 in soil) within 6 days. During soil bioremediation, atrazine promoted the activities of urease and cellulase, and inhibited the activities of sucrase and catalase, while the strain ZF1 significantly promoted the activities of these four enzymes. High-throughput sequencing of 16S rRNA genes showed that ZF1 affected the relative abundance and bacterial community structure, and promoted bacterial diversity and evenness. Furthermore, redundancy analysis revealed a certain correlation among the strain ZF1, atrazine residue, soil enzyme activity, and soil bacterial community. The strain ZF1 in this work demonstrated remarkable potential for ecological restoration, and can be an effective and environmentally friendly alternative in remediating atrazine-contaminated soil.
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Mitzscherling J, MacLean J, Lipus D, Bartholomäus A, Mangelsdorf K, Lipski A, Roddatis V, Liebner S, Wagner D. Nocardioides alcanivorans sp. nov., a novel hexadecane-degrading species isolated from plastic waste. Int J Syst Evol Microbiol 2022; 72. [DOI: 10.1099/ijsem.0.005319] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Strain NGK65T, a novel hexadecane degrading, non-motile, Gram-positive, rod-to-coccus shaped, aerobic bacterium, was isolated from plastic polluted soil sampled at a landfill. Strain NGK65T hydrolysed casein, gelatin, urea and was catalase-positive. It optimally grew at 28 °C, in 0–1% NaCl and at pH 7.5–8.0. Glycerol, d-glucose, arbutin, aesculin, salicin, potassium 5-ketogluconate, sucrose, acetate, pyruvate and hexadecane were used as sole carbon sources. The predominant membrane fatty acids were iso-C16:0 followed by iso-C17:0 and C18:1
ω9c. The major polar lipids were phosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol and hydroxyphosphatidylinositol. The cell-wall peptidoglycan type was A3γ, with ll-diaminopimelic acid and glycine as the diagnostic amino acids. MK 8 (H4) was the predominant menaquinone. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain NGK65T belongs to the genus
Nocardioides
(phylum
Actinobacteria
), appearing most closely related to
Nocardioides daejeonensis
MJ31T (98.6%) and
Nocardioides dubius
KSL-104T (98.3%). The genomic DNA G+C content of strain NGK65T was 68.2%. Strain NGK65T and the type strains of species involved in the analysis had average nucleotide identity values of 78.3–71.9% as well as digital DNA–DNA hybridization values between 22.5 and 19.7%, which clearly indicated that the isolate represents a novel species within the genus
Nocardioides
. Based on phenotypic and molecular characterization, strain NGK65T can clearly be differentiated from its phylogenetic neighbours to establish a novel species, for which the name Nocardioides alcanivorans sp. nov. is proposed. The type strain is NGK65T (=DSM 113112T=NCCB 100846T).
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Affiliation(s)
- Julia Mitzscherling
- GFZ German Research Centre for Geosciences, Section Geomicrobiology, Potsdam, Germany
| | - Joana MacLean
- GFZ German Research Centre for Geosciences, Section Geomicrobiology, Potsdam, Germany
| | - Daniel Lipus
- GFZ German Research Centre for Geosciences, Section Geomicrobiology, Potsdam, Germany
| | | | - Kai Mangelsdorf
- GFZ German Research Centre for Geosciences, Section Organic Geochemistry, Potsdam, Germany
| | - André Lipski
- University of Bonn, Institute of Nutritional and Food Sciences, Food Microbiology and Hygiene, Bonn, Germany
| | - Vladimir Roddatis
- GFZ German Research Centre for Geosciences, Section Interface Geochemistry, Potsdam, Germany
| | - Susanne Liebner
- University of Potsdam, Institute of Biochemistry and Biology, Potsdam, Germany
- GFZ German Research Centre for Geosciences, Section Geomicrobiology, Potsdam, Germany
| | - Dirk Wagner
- University of Potsdam, Institute of Geoscience, Potsdam, Germany
- GFZ German Research Centre for Geosciences, Section Geomicrobiology, Potsdam, Germany
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Zhu J, Zhao Y, Li X, Wu L, Fu LI, Yang N, Yin J, Huang R. Isolation of 2 simazine-degrading bacteria and development of a microbial agent for bioremediation of simazine pollution. AN ACAD BRAS CIENC 2021; 93:e20210373. [PMID: 34644724 DOI: 10.1590/0001-3765202120210373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 04/27/2021] [Indexed: 11/22/2022] Open
Abstract
Simazine was one of the most commonly used herbicides and was widely used to control broadleaf weeds in agriculture and forestry. Its widespread use had caused wide public concern for its high ecological toxicity. In order to remove simazine residues, 2 strains capable of effectively degrading simazine were isolated from the soil and named SIMA-N5 and SIMA-N9. SIMA-N5 was identified as Bacillus licheniformis by 16SrRNA sequence analysis, and SIMA-N9 was Bacillus altitudinis. According to the degradation ratio of simazine in a certain period of time, the degradation ability of different strains was evaluated. The degradation efficiency of simazine (5 mg/L) by SIMA-N9 could reach about 98% in 5d, and the strain SIMA-N5 could reach 94% under the same conditions. In addition, the addition of Pennisetum rhizosphere soil during the process of degrading simazine by strain SIMA-N9 could effectively improve the degradation efficiency. The strain SIMA-N9 has been developed as a microbial agent for the bioremediation of simazine contamination in soil. The new microbial agent developed by using SIMA-N9 has achieved satisfactory application effects. Based on the research results already obtained in this study, it was considered that strain SIMA-N9 and its live bacterial agent could play an important role in bioremediation of simazine pollution. This study could not only provide a set of solutions to the simazine pollution, but also provide a reference for the treatment of other pesticide pollution.
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Affiliation(s)
- Jiangwei Zhu
- Nanjing Forestry University, Co-Innovation Center for Sustainable Forestry in Southern China, No. 159, Longpan Road, 210037, Nanjing, China
| | - Yan Zhao
- Shanghai Institute of Quality Inspection and Technical Research, No. 381, Cangwu Road, Xuhui District, 200233, Shanghai, China
| | - Xiaolou Li
- Sichuan Vocational and Technological College, Architecture and Environmental Engineering Department, No. 1, Xuefu North Road, 629000, Suining, China
| | - Lei Wu
- Shandong Medical College, Department of Medical Examination, No. 5460, Erhuan'nan Road, 250002, Jinan, China
| | - L I Fu
- Hangzhou Dianzi University, College of Materials and Environmental Engineering, No. 1158, No. 2 Baiyang Street, 310018, Hangzhou, China
| | - Ning Yang
- Ji'nan Landscape Flower and Plantlet Breeding Center, No. 30899, Jingshi East Road, 250103, Jinan, China
| | - Jun Yin
- Pudong Agrotechnology Extension Center, No. 386, Pailou Road, 201201, Shanghai, China
| | - Rong Huang
- Pudong Agrotechnology Extension Center, No. 386, Pailou Road, 201201, Shanghai, China
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Liang D, Xiao C, Song F, Li H, Liu R, Gao J. Complete Genome Sequence and Function Gene Identify of Prometryne-Degrading Strain Pseudomonas sp. DY-1. Microorganisms 2021; 9:microorganisms9061261. [PMID: 34200754 PMCID: PMC8230428 DOI: 10.3390/microorganisms9061261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 05/30/2021] [Accepted: 06/08/2021] [Indexed: 12/02/2022] Open
Abstract
The genus Pseudomonas is widely recognized for its potential for environmental remediation and plant growth promotion. Pseudomonas sp. DY-1 was isolated from the agricultural soil contaminated five years by prometryne, it manifested an outstanding prometryne degradation efficiency and an untapped potential for plant resistance improvement. Thus, it is meaningful to comprehend the genetic background for strain DY-1. The whole genome sequence of this strain revealed a series of environment adaptive and plant beneficial genes which involved in environmental stress response, heavy metal or metalloid resistance, nitrate dissimilatory reduction, riboflavin synthesis, and iron acquisition. Detailed analyses presented the potential of strain DY-1 for degrading various organic compounds via a homogenized pathway or the protocatechuate and catechol branches of the β-ketoadipate pathway. In addition, heterologous expression, and high efficiency liquid chromatography (HPLC) confirmed that prometryne could be oxidized by a Baeyer-Villiger monooxygenase (BVMO) encoded by a gene in the chromosome of strain DY-1. The result of gene knock-out suggested that the sulfate starvation-induced (SSI) genes in this strain might also involve in the process of prometryne degradation. These results would provide the molecular basis for the application of strain DY-1 in various fields and would contribute to the study of prometryne biodegradation mechanism as well.
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Affiliation(s)
- Dong Liang
- College of Life Science, Northeast Agricultural University, Harbin 150038, China; (D.L.); (C.X.); (H.L.)
| | - Changyixin Xiao
- College of Life Science, Northeast Agricultural University, Harbin 150038, China; (D.L.); (C.X.); (H.L.)
| | - Fuping Song
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
| | - Haitao Li
- College of Life Science, Northeast Agricultural University, Harbin 150038, China; (D.L.); (C.X.); (H.L.)
| | - Rongmei Liu
- College of Life Science, Northeast Agricultural University, Harbin 150038, China; (D.L.); (C.X.); (H.L.)
- Correspondence: (R.L.); (J.G.); Tel.: +86-133-5999-0992 (J.G.)
| | - Jiguo Gao
- College of Life Science, Northeast Agricultural University, Harbin 150038, China; (D.L.); (C.X.); (H.L.)
- Correspondence: (R.L.); (J.G.); Tel.: +86-133-5999-0992 (J.G.)
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12
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Isolation and Identification of Pseudomonas sp. Strain DY-1 from Agricultural Soil and Its Degradation Effect on Prometryne. Curr Microbiol 2021; 78:1871-1881. [PMID: 33830318 DOI: 10.1007/s00284-021-02433-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 02/16/2021] [Indexed: 01/12/2023]
Abstract
Prometryne is a widely used herbicide in China to control annual grasses and broadleaf weeds. However, the stability of prometryne makes it difficult to be degraded, which poses a threat to human health. This study presents a bacterial strain isolated from soil samples with a prometryne application history, designated strain DY-1. Strain DY-1, identified as Pseudomonas sp., is capable of utilizing prometryne as a sole carbon source for growth and degrading 100% of prometryne within 48 h from an initial concentration of 50 mg L-1. To further optimize the degradation of prometryne, the prometryne concentration, temperature, pH, and salt concentration were examined. The optimal conditions for degradation of prometryne by strain DY-1 were an initial prometryne concentration of 50 mg L-1, 30 °C, pH 7-8, and NaCl concentration of 200 mg L-1. The same strain also degraded other s-triazine herbicides, including simetryne, ametryne, desmetryne, and metribuzin, under the same conditions. The biodegradation pathway of prometryne was established by isolating sulfoxide prometryne as the first metabolite and by the identification of sulfone prometryne and 2-hydroxy prometryne by liquid chromatography-mass spectrometry (LC-MS/MS). The results illustrated that strain DY-1 achieved the removal of prometryne by gradually oxidizing and hydrolyzing the methylthio groups. A bioremediation trial with contaminated soil and pot experiments showed that after treating the prometryne-contaminated soil with strain DY-1, the content of prometryne was significantly reduced (P < 0.05). This study provides an efficient bacterial strain and approach that could be potentially useful for detoxification and bioremediation of prometryne analogs.
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13
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Zhang M, Ren Y, Jiang W, Wu C, Zhou Y, Wang H, Ke Z, Gao Q, Liu X, Qiu J, Hong Q. Comparative genomic analysis of iprodione-degrading Paenarthrobacter strains reveals the iprodione catabolic molecular mechanism in Paenarthrobacter sp. strain YJN-5. Environ Microbiol 2020; 23:1079-1095. [PMID: 33169936 DOI: 10.1111/1462-2920.15308] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 11/05/2020] [Accepted: 11/06/2020] [Indexed: 12/16/2022]
Abstract
Degradation of the fungicide iprodione by the Paenarthrobacter sp. strain YJN-5 is initiated via hydrolysis of its N1 amide bond to form N-(3,5-dichlorophenyl)-2,4-dioxoimidazolidine. In this study, another iprodione-degrading strain, Paenarthrobacter sp. YJN-D, which harbours the same metabolic pathway as strain YJN-5 was isolated and characterized. The genes that encode the conserved iprodione catabolic pathway were identified based on comparative analysis of the genomes of the two iprodione-degrading Paenarthrobacter sp. and subsequent experimental validation. These genes include an amidase gene, ipaH (previously reported in AEM e01150-18); a deacetylase gene, ddaH, which is responsible for hydantoin ring cleavage of N-(3,5-dichlorophenyl)-2,4-dioxoimidazolidine, and a hydrolase gene, duaH, which is responsible for cleavage of the urea side chain of (3,5-dichlorophenylurea)acetic acid, thus yielding 3,5-dichloroaniline as the end product. These iprodione-catabolic genes are distributed on three plasmids in strain YJN-5 and are highly conserved between the two iprodione-degrading Paenarthrobacter strains. However, only the ipaH gene is flanked by a mobile genetic element. Two iprodione degradation cassettes bearing ipaH-ddaH-duaH were constructed and expressed in strains Pseudomonas putida KT2440 and Bacillus subtilis SCK6 respectively. Our findings enhance the current understanding of the microbial degradation mechanism of iprodione.
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Affiliation(s)
- Mingliang Zhang
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Yijun Ren
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Wankui Jiang
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Chenglong Wu
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Yidong Zhou
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Hui Wang
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Zhijian Ke
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Qinqin Gao
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Xiaoan Liu
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Jiguo Qiu
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Qing Hong
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
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14
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Esquirol L, Peat TS, Sugrue E, Balotra S, Rottet S, Warden AC, Wilding M, Hartley CJ, Jackson CJ, Newman J, Scott C. Bacterial catabolism of s-triazine herbicides: biochemistry, evolution and application. Adv Microb Physiol 2020; 76:129-186. [PMID: 32408946 DOI: 10.1016/bs.ampbs.2020.01.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The synthetic s-triazines are abundant, nitrogen-rich, heteroaromatic compounds used in a multitude of applications including, herbicides, plastics and polymers, and explosives. Their presence in the environment has led to the evolution of bacterial catabolic pathways in bacteria that allow use of these anthropogenic chemicals as a nitrogen source that supports growth. Herbicidal s-triazines have been used since the mid-twentieth century and are among the most heavily used herbicides in the world, despite being withdrawn from use in some areas due to concern about their safety and environmental impact. Bacterial catabolism of the herbicidal s-triazines has been studied extensively. Pseudomonas sp. strain ADP, which was isolated more than thirty years after the introduction of the s-triazine herbicides, has been the model system for most of these studies; however, several alternative catabolic pathways have also been identified. Over the last five years, considerable detail about the molecular mode of action of the s-triazine catabolic enzymes has been uncovered through acquisition of their atomic structures. These structural studies have also revealed insights into the evolutionary origins of this newly acquired metabolic capability. In addition, s-triazine-catabolizing bacteria and enzymes have been used in a range of applications, including bioremediation of herbicides and cyanuric acid, introducing metabolic resistance to plants, and as a novel selectable marker in fermentation organisms. In this review, we cover the discovery and characterization of bacterial strains, metabolic pathways and enzymes that catabolize the s-triazines. We also consider the evolution of these new enzymes and pathways and discuss the practical applications that have been considered for these bacteria and enzymes. One Sentence Summary: A detailed understanding of bacterial herbicide catabolic enzymes and pathways offer new evolutionary insights and novel applied tools.
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Affiliation(s)
- Lygie Esquirol
- Biocatalysis & Synthetic Biology Team, CSIRO Land & Water, Black Mountain Science and Innovation Park, Canberra, ACT, Australia; Research School of Chemistry, Australian National University, Canberra, ACT, Australia
| | - Thomas S Peat
- CSIRO Biomedical Manufacturing, Parkville, VIC, Australia
| | - Elena Sugrue
- Research School of Chemistry, Australian National University, Canberra, ACT, Australia
| | - Sahil Balotra
- Biocatalysis & Synthetic Biology Team, CSIRO Land & Water, Black Mountain Science and Innovation Park, Canberra, ACT, Australia
| | - Sarah Rottet
- Biocatalysis & Synthetic Biology Team, CSIRO Land & Water, Black Mountain Science and Innovation Park, Canberra, ACT, Australia; Synthetic Biology Future Science Platform, CSIRO Land & Water, Black Mountain Science and Innovation Park, Canberra, ACT, Australia
| | - Andrew C Warden
- Biocatalysis & Synthetic Biology Team, CSIRO Land & Water, Black Mountain Science and Innovation Park, Canberra, ACT, Australia
| | - Matthew Wilding
- Research School of Chemistry, Australian National University, Canberra, ACT, Australia; CSIRO Biomedical Manufacturing, Parkville, VIC, Australia; Synthetic Biology Future Science Platform, CSIRO Land & Water, Black Mountain Science and Innovation Park, Canberra, ACT, Australia
| | - Carol J Hartley
- Biocatalysis & Synthetic Biology Team, CSIRO Land & Water, Black Mountain Science and Innovation Park, Canberra, ACT, Australia
| | - Colin J Jackson
- Research School of Chemistry, Australian National University, Canberra, ACT, Australia
| | - Janet Newman
- CSIRO Biomedical Manufacturing, Parkville, VIC, Australia
| | - Colin Scott
- Biocatalysis & Synthetic Biology Team, CSIRO Land & Water, Black Mountain Science and Innovation Park, Canberra, ACT, Australia; Synthetic Biology Future Science Platform, CSIRO Land & Water, Black Mountain Science and Innovation Park, Canberra, ACT, Australia
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15
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Ito K, Takagi K, Kataoka R, Kiyota H, Iwasaki A. Dissipation, dehalogenation, and denitration of chloroaromatic compounds by Nocardioides sp. strain PD653: Characterization of the substrate specificity. JOURNAL OF PESTICIDE SCIENCE 2019; 44:171-176. [PMID: 31530974 PMCID: PMC6718357 DOI: 10.1584/jpestics.d19-024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 05/21/2019] [Indexed: 06/01/2023]
Abstract
The substrate range of Nocardioides sp. strain PD653, capable of mineralizing hexachlorobenzene, was investigated based on the dissipation of substrates and the liberation of halogen ions. Strain PD653 dehalogenated 10 out of 18 halophenol congeners; however, it could dehalogenate only hexachlorobenzene out of seven halobenzene congeners tested. Moreover, dehalogenation activities were shown for chloronitrobenzenes, along with an increase in the number of substituted chlorine atoms except for 2,3,4,5-tetrachloro-1-nitrobenzene. These results suggested that this strain might be applicable to remediate soil contaminated with these persistent chloroaromatic compounds.
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Affiliation(s)
- Koji Ito
- Hazardous Chemical Division, Institute for Agro-Environmental Sciences, NARO, Kannondai, Tsukuba, Ibaraki 305–8604, Japan
| | - Kazuhiro Takagi
- Hazardous Chemical Division, Institute for Agro-Environmental Sciences, NARO, Kannondai, Tsukuba, Ibaraki 305–8604, Japan
| | - Ryota Kataoka
- Department of Environmental Sciences, University of Yamanashi, Takeda, Kofu, Yamanashi 400–8510, Japan
| | - Hiromasa Kiyota
- Graduate school of Environmental and Life Science, Okayama university, Tsushima, Okayama, Okayama 700–8530, Japan
| | - Akio Iwasaki
- Juntendo Medical Technology Innovation Center, Juntendo University, Hongo, Bunkyo-ku, Tokyo, 113–8421, Japan
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16
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Study on the Isolation of Two Atrazine-Degrading Bacteria and the Development of a Microbial Agent. Microorganisms 2019; 7:microorganisms7030080. [PMID: 30875830 PMCID: PMC6463102 DOI: 10.3390/microorganisms7030080] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 03/03/2019] [Accepted: 03/08/2019] [Indexed: 11/17/2022] Open
Abstract
Two bacteria capable of efficiently degrading atrazine were isolated from soil, and named ATLJ-5 and ATLJ-11. ATLJ-5 and ATLJ-11 were identified as Bacillus licheniformis and Bacillus megaterium, respectively. The degradation efficiency of atrazine (50 mg/L) by strain ATLJ-5 can reach about 98.6% after 7 days, and strain ATLJ-11 can reach 99.6% under the same conditions. The degradation of atrazine is faster when two strains are used in combination. Adding the proper amount of fresh soil during the degradation of atrazine by these two strains can also increase the degradation efficiency. The strains ATLJ-5 and ATLJ-11 have high tolerance to atrazine, and can tolerate at least 1000 mg/L of atrazine. In addition, the strains ATLJ-5 and ATLJ-11 have been successfully made into a microbial agent that can be used to treat atrazine residues in soil. The degradation efficiency of atrazine (50 mg/kg) could reach 99.0% by this microbial agent after 7 days. These results suggest that the strains ATLJ-5 and ATLJ-11 can be used for the treatment of atrazine pollution.
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17
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Tasca AL, Puccini M, Fletcher A. Terbuthylazine and desethylterbuthylazine: Recent occurrence, mobility and removal techniques. CHEMOSPHERE 2018; 202:94-104. [PMID: 29554512 DOI: 10.1016/j.chemosphere.2018.03.091] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 03/13/2018] [Indexed: 06/08/2023]
Abstract
The herbicide terbuthylazine (TBA) has displaced atrazine in most of EU countries, becoming one of the most regularly used pesticides and, therefore, frequently detected in natural waters. The affinity of TBA for soil organic matter suggests prolonged contamination; degradation leads to the release of the metabolite desethylterbuthylazine (DET), which has higher water solubility and binds more weakly to organic matter compared to the parent compound, resulting in higher associated risk for contamination of groundwater resources. Additionally, TBA and DET are chemicals of emerging concern because of their persistence and toxicity towards aquatic organisms; moreover, they are known to have significant endocrine disruption capacity to wildlife and humans. Conventional treatments applied during drinking water production do not lead to the complete removal of these chemicals; activated carbon provides the greatest efficiency, whereas ozonation can generate by-products with comparable oestrogenic activity to atrazine. Hydrogen peroxide alone is ineffective to degrade TBA, while UV/H2O2 advanced oxidation and photocatalysis are the most effective processes for oxidation of TBA. It has been determined that direct photolysis gives the highest degradation efficiency of all UV/H2O2 treatments, while most of the photocatalytic degradation is attributed to OH radicals, and TiO2 solar-photocatalytic ozonation can lead to almost complete TBA removal in ∼30 min. Constructed wetlands provide a valuable buffer capacity, protecting downstream surface waters from contaminated runoff. TBA and DET occurrence are summarized and removal techniques are critically evaluated and compared, to provide the reader with a comprehensive guide to state-of-the-art TBA removal and potential future treatments.
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Affiliation(s)
- Andrea Luca Tasca
- Civil and Industrial Engineering Department, University of Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy.
| | - Monica Puccini
- Civil and Industrial Engineering Department, University of Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy
| | - Ashleigh Fletcher
- Department of Chemical and Process Engineering, University of Strathclyde, Glasgow, G1 1XJ, UK
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18
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Yan ZF, Lin P, Li CT, Kook M, Yi TH. Nocardioides pelophilus sp. nov., isolated from freshwater mud. Int J Syst Evol Microbiol 2018; 68:1942-1948. [DOI: 10.1099/ijsem.0.002776] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Zheng-Fei Yan
- College of Life Science, Kyung Hee University Global Campus, 1732 Deokyoungdae-ro, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Pei Lin
- College of Life Science, Kyung Hee University Global Campus, 1732 Deokyoungdae-ro, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Chang-Tian Li
- Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, PR China
| | - MooChang Kook
- Department of Food Nutrition, Baewha Women’s University, Seoul 03039, Republic of Korea
| | - Tae-Hoo Yi
- College of Life Science, Kyung Hee University Global Campus, 1732 Deokyoungdae-ro, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
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Jiang C, Lu YC, Xu JY, Song Y, Song Y, Zhang SH, Ma LY, Lu FF, Wang YK, Yang H. Activity, biomass and composition of microbial communities and their degradation pathways in exposed propazine soil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 145:398-407. [PMID: 28763756 DOI: 10.1016/j.ecoenv.2017.07.058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 07/22/2017] [Accepted: 07/24/2017] [Indexed: 06/07/2023]
Abstract
Propazine is a s-triazine herbicide widely used for controlling weeds for crop production. Its persistence and contamination in environment nagatively affect crop growth and food safety. Elimination of propazine residues in the environment is critical for safe crop production. This study identified a microbial community able to degrade propazine in a farmland soil. About 94% of the applied propazine was degraded within 11 days of incubation when soil was treated with 10mgkg-1 propazine as the initial concentration. The process was accompanied by increased microbial biomass and activities of soil enzymes. Denaturing gradient gel electrophoresis (DGGE) revealed multiple bacterial strains in the community as well as dynamic change of the composition of microbial community with a reduced microbial diversity (H' from 3.325 to 2.78). Tracking the transcript level of degradative genes AtzB, AtzC and TrzN showed that these genes were induced by propazine and played important roles in the degradation process. The activities of catalase, dehydrogenase and phenol oxidase were stimulated by propazine exposure. Five degradation products (hydroxyl-, methylated-, dimeric-propazine, ammeline and ammelide) were characterized by UPLC-MS2, revealing a biodegradation of propazine in soil. Several novel methylated and dimeric products of propazine were characterized in thepropazine-exposed soil. These data help understand the pathway, detailed mechanism and efficiency of propazine biodegradation in soil under realistic field condition.
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Affiliation(s)
- Chen Jiang
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China; State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing 210095, China
| | - Yi Chen Lu
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China; College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211800, China
| | - Jiang Yan Xu
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yang Song
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yue Song
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Shu Hao Zhang
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Li Ya Ma
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Feng Fan Lu
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Ya Kun Wang
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Hong Yang
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China; State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing 210095, China.
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20
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Xie F, Yang Y, Ma H, Quan S, Yue D, Sun Y, Feng F, Zhen J, Liu D. Nocardioides phosphati sp. nov., an actinomycete isolated from a phosphate mine. Int J Syst Evol Microbiol 2017; 67:1522-1528. [DOI: 10.1099/ijsem.0.001754] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Fuhong Xie
- Henan Engineering Research Center of Industrial Enzymes, Biology Institute of Henan Academy of Sciences, Zhengzhou 450008, PR China
| | - Yang Yang
- Henan Engineering Research Center of Industrial Enzymes, Biology Institute of Henan Academy of Sciences, Zhengzhou 450008, PR China
| | - Huan Ma
- Henan Engineering Research Center of Industrial Enzymes, Biology Institute of Henan Academy of Sciences, Zhengzhou 450008, PR China
| | - Shujing Quan
- Henan Engineering Research Center of Industrial Enzymes, Biology Institute of Henan Academy of Sciences, Zhengzhou 450008, PR China
| | - Dandan Yue
- Henan Key Laboratory of Microbial Engineering, Biology Institute of Henan Academy of Sciences, Zhengzhou 450008, PR China
| | - Yufei Sun
- Henan Key Laboratory of Microbial Engineering, Biology Institute of Henan Academy of Sciences, Zhengzhou 450008, PR China
| | - Fei Feng
- Henan Key Laboratory of Microbial Engineering, Biology Institute of Henan Academy of Sciences, Zhengzhou 450008, PR China
| | - Jing Zhen
- Henan Key Laboratory of Microbial Engineering, Biology Institute of Henan Academy of Sciences, Zhengzhou 450008, PR China
| | - Dehai Liu
- Henan Engineering Research Center of Industrial Enzymes, Biology Institute of Henan Academy of Sciences, Zhengzhou 450008, PR China
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21
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Scherr KE, Bielská L, Kosubová P, Dinisová P, Hvězdová M, Šimek Z, Hofman J. Occurrence of Chlorotriazine herbicides and their transformation products in arable soils. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 222:283-293. [PMID: 28024812 DOI: 10.1016/j.envpol.2016.12.043] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 12/16/2016] [Accepted: 12/17/2016] [Indexed: 06/06/2023]
Abstract
Chlorotriazine herbicides (CTs) are widely used pest control chemicals. In contrast to groundwater contamination, little attention has been given to the circumstances of residue formation of parent compounds and transformation products in soils. Seventy-five cultivated floodplain topsoils in the Czech Republic were sampled in early spring of 2015, corresponding to a minimum of six months (current-use terbuthylazine, TBA) and a up to a decade (banned atrazine, AT and simazine, SIM) after the last herbicide application. Soil residues of parent compounds and nine transformation products were quantified via multiple residue analysis using liquid chromatography - tandem mass spectrometry of acetonitrile partitioning extracts (QuEChERS). Using principal component analysis (PCA), their relation to soil chemistry, crops and environmental parameters was determined. Of the parent compounds, only TBA was present in more than one sample. In contrast, at least one CT transformation product, particularly hydroxylated CTs, was detected in 89% of the sites, or 54% for banned triazines. Deethylated and bi-dealkylated SIM or AT residues were not detectable. PCA suggests the formation and/or retention of CT hydroxy-metabolite residues to be related to low soil pH, and a direct relation between TBA and soil organic carbon, and between deethyl-TBA and clay or Ca contents, respectively, the latter pointing towards distinct sorption mechanisms. The low historic application of simazine contrasted by the high abundance of its residues, and the co-occurrence with AT residues suggests the post-ban application of AT and SIM banned triazines as a permitted impurity of TBA formulations as a recent, secondary source. The present data indicate that topsoils do not contain abundant extractable residues of banned parent chlorotriazines, and are thus likely not the current source for related ground- and surface water contamination. In contrast, topsoils might pose a long-term source of TBA and CT transformation products for ground and surface water contamination.
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Affiliation(s)
- Kerstin E Scherr
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, 625 00 Brno, Czechia; Institute for Environmental Biotechnology, Department for Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences (BOKU), Konrad-Lorenz-Strasse 20, 3430 Tulln, Austria.
| | - Lucie Bielská
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, 625 00 Brno, Czechia
| | - Petra Kosubová
- Central Institute for Supervising and Testing in Agriculture, Hroznová 2, Brno, 603 00, Czechia
| | | | - Martina Hvězdová
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, 625 00 Brno, Czechia
| | - Zdeněk Šimek
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, 625 00 Brno, Czechia
| | - Jakub Hofman
- Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, 625 00 Brno, Czechia
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Liu J, Hua R, Lv P, Tang J, Wang Y, Cao H, Wu X, Li QX. Novel hydrolytic de-methylthiolation of the s-triazine herbicide prometryn by Leucobacter sp. JW-1. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 579:115-123. [PMID: 27866738 DOI: 10.1016/j.scitotenv.2016.11.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 10/30/2016] [Accepted: 11/01/2016] [Indexed: 06/06/2023]
Abstract
s-Triazine herbicides have been widely used in recent decades and caused serious concern over contamination of groundwater, surface water and soil. A novel bacterial strain JW-1 was isolated from activated sludge and identified as Leucobacter sp. based on comparative morphology, physiological characteristics and comparison of the 16S rDNA gene sequence. JW-1 was capable of using methylthio-s-triazine prometryn as a sole source of carbon and energy in pure culture. Favorable conditions for prometryn degradation were found at pH7.0-9.0 and temperature of 37-42°C. The degradation half-life of prometryn at 50mgL-1 was remarkably as short as 1.1h, and increased to 6.0h when the initial concentration increased to 400mgL-1. The strain JW-1 could degrade 100% of ametryn, 99% of simetryn, 41% of propazine, 43% of atrazine, 28% of simazine, 12% of terbutylhylazine, 10% of prometon and 13% of atraton at 50mgL-1 of each herbicide in 2days. Prometryn was converted to 2-hydroxypropazine and methanthiol via a novel hydrolysis pathway. 2-Hydroxypropazine was then transformed to N-isopropylammelide and the final product cyanuric acid via two sequential deamination reactions. In addition to biodegradation by Leucobacter sp. JW-1, the hydrolytic de-methylthiolation would be valuable in biocatalysis.
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Affiliation(s)
- Junwei Liu
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
| | - Rimao Hua
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
| | - Pei Lv
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
| | - Jun Tang
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
| | - Yi Wang
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
| | - Haiqun Cao
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
| | - Xiangwei Wu
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China.
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, 1955 East-West Road, Honolulu, HI 957822, USA
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23
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Wang J, Zhu L, Wang Q, Wang J, Xie H. Isolation and characterization of atrazine mineralizing Bacillus subtilis strain HB-6. PLoS One 2014; 9:e107270. [PMID: 25238246 PMCID: PMC4169520 DOI: 10.1371/journal.pone.0107270] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2013] [Accepted: 08/14/2014] [Indexed: 12/03/2022] Open
Abstract
Atrazine is a widely used herbicide with great environmental concern due to its high potential to contaminate soil and waters. An atrazine-degrading bacterial strain HB-6 was isolated from industrial wastewater and the 16S rRNA gene sequencing identified HB-6 as a Bacillus subtilis. PCR assays indicated that HB-6 contained atrazine-degrading genes trzN, atzB and atzC. The strain HB-6 was capable of utilizing atrazine and cyanuric acid as a sole nitrogen source for growth and even cleaved the s-triazine ring and mineralized atrazine. The strain demonstrated a very high efficiency of atrazine biodegradation with a broad optimum pH and temperature ranges and could be enhanced by cooperating with other bacteria, suggesting its huge potential for remediation of atrazine-contaminated sites. To our knowledge, there are few Bacillus subtilis strains reported that can mineralize atrazine, therefore, the present work might provide some new insights on atrazine remediation.
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Affiliation(s)
- Jinhua Wang
- College of Resources and Environment, Key Laboratory of Agricultural Environment in Universities of Shandong, Shandong Agriculture University, People's Republic of China
- Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Nankai University, People's Republic of China
| | - Lusheng Zhu
- College of Resources and Environment, Key Laboratory of Agricultural Environment in Universities of Shandong, Shandong Agriculture University, People's Republic of China
- * E-mail:
| | - Qi Wang
- College of Resources and Environment, Key Laboratory of Agricultural Environment in Universities of Shandong, Shandong Agriculture University, People's Republic of China
| | - Jun Wang
- College of Resources and Environment, Key Laboratory of Agricultural Environment in Universities of Shandong, Shandong Agriculture University, People's Republic of China
| | - Hui Xie
- College of Resources and Environment, Key Laboratory of Agricultural Environment in Universities of Shandong, Shandong Agriculture University, People's Republic of China
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A Role ofBradyrhizobium elkaniiand Closely Related Strains in the Degradation of Methoxychlor in Soil and Surface Water Environments. Biosci Biotechnol Biochem 2014; 77:2222-7. [DOI: 10.1271/bbb.130439] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Singh AK, Cameotra SS. Influence of microbial and synthetic surfactant on the biodegradation of atrazine. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:2088-2097. [PMID: 24026208 DOI: 10.1007/s11356-013-2127-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 08/30/2013] [Indexed: 05/26/2023]
Abstract
The present study reports the effect of surfactants (rhamnolipids and triton X-100) on biodegradation of atrazine herbicide by strain A6, belonging to the genus Acinetobacter. The strain A6 was able to degrade nearly 80 % of the 250-ppm atrazine after 6 days of growth. The bacterium degraded atrazine by de-alkylation process. Bacterial cell surface hydrophobicity as well as atrazine solubility increased in the presence of surfactant. However, addition of surfactant to the mineral salt media reduced the rate and extent of atrazine degradation by decreasing the bioavailability of herbicide. On the contrary, addition of surfactant to atrazine-contaminated soil increased the rate and extent of biodegradation by increasing the bioavailability of herbicide. As compared to triton X-100, rhamnolipids were more efficient in enhancing microbial degradation of atrazine as a significant amount of atrazine was removed from the soil by rhamnolipids. Surfactants added for the purpose of hastening microbial degradation may have an unintended inhibitory effect on herbicide degradation depending upon contiguous condition, thus highlighting the fact that surfactant must be judiciously used in bioremediation of herbicides.
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Affiliation(s)
- Anil Kumar Singh
- Institute of Microbial Technology, Sector 39 A, Chandigarh, 160036, India
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Effect of herbicide adjuvants on the biodegradation rate of the methylthiotriazine herbicide prometryn. Biodegradation 2013; 25:405-15. [DOI: 10.1007/s10532-013-9669-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 10/23/2013] [Indexed: 12/17/2022]
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