Journal ArticleDOI
Biodegradation of carbofuran by Pichia anomala strain HQ-C-01 and its application for bioremediation of contaminated soils
TLDR
Results indicated that strain HQ-C-01 may potentially be used in bioremediation of carbofuran-contaminated soil.Abstract:
A novel yeast named HQ-C-01 was isolated from activated sludge and identified as Pichia anomala based on the morphology and 18S rDNA sequence analysis. The HQ-C-01 strain degraded 95.2% of carbofuran when the insecticide was used as the only C source and added at 50 mg/L in a mineral salts medium within 48 h. The optimal concentration, temperature, and pH of medium for degradation of carbofuran were 50 mg/L, 30°C, and pH 7.5, respectively. Strain HQ-C-01 could also effectively degrade other carbamate insecticides including carbaryl, indoxacarb, and fenobucarb, and the degradation rates were 99%, 85%, and 67%, respectively. Gas chromatography–mass spectrometry analysis showed that the strain metabolized carbofuran to produce benzofuranol as the intermediate metabolite, which was further degraded. Degradation of carbofuran added at 50 mg/kg of soil was higher in yeast-inoculated soil than in the control. These results indicated that strain HQ-C-01 may potentially be used in bioremediation of carbofuran-contaminated soil.read more
Citations
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Bioaugmentation as a strategy for the remediation of pesticide-polluted soil: A review.
TL;DR: In this paper, the authors focused on the microbial degradation of the most common pesticides that have been used for many years such as organochlorinated and organophosphorus pesticides, triazines, pyrethroids, carbamate, chloroacetamide, benzimidazole and derivatives of phenoxyacetic acid.
Journal ArticleDOI
Carbofuran toxicity and its microbial degradation in contaminated environments.
TL;DR: The carbofuran toxicity and its toxicological impact into the environment, in-depth understanding of carb ofuran degradation mechanism with microbial strains, metabolic pathways, molecular mechanisms and genetic basis involved in degradation are discussed.
Journal ArticleDOI
Pathway and kinetics of cyhalothrin biodegradation by Bacillus thuringiensis strain ZS-19
Shaohua Chen,Shaohua Chen,Yinyue Deng,Yinyue Deng,Changqing Chang,Changqing Chang,Jasmine Lee,Yingying Cheng,Zi-Ning Cui,Jianuan Zhou,Fei He,Meiying Hu,Lian-Hui Zhang,Lian-Hui Zhang,Lian-Hui Zhang +14 more
TL;DR: This study reported for the first time a newly isolated strain, Bacillus thuringiensis ZS-19 completely degraded cyhalothrin in minimal medium within 72 h and identified 3-phenoxyphenyl acetonitrile and N-(2-isoproxy-phenyl)-4-phenoxy-benzamide as the metabolites in the degradation pathway of pyrethroids.
Journal ArticleDOI
Characterization of the role of esterases in the biodegradation of organophosphate, carbamate, and pyrethroid pesticides.
TL;DR: A review of the previous research on esterases from different sources to determine and summarize the current knowledge of their properties, classifications, structures, mechanisms, and their applications in the removal of pesticides from the environment is presented in this article.
Journal ArticleDOI
Enhancement of cypermethrin degradation by a coculture of Bacillus cereus ZH-3 and Streptomyces aureus HP-S-01.
TL;DR: This coculture is the first described mixed microbial consortium capable of metabolizing cypermethrin and indicates that the microbial consortium converted cypermETHrin to α-hydroxy-3-phenoxy-benzeneacetonitrile, 3-phen Oxybenzaldehyde and 4-phenoxyphenyl-2,2-dimethyl-propiophenone.
References
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Journal ArticleDOI
MEGA3: Integrated software for Molecular Evolutionary Genetics Analysis and sequence alignment
TL;DR: An overview of the statistical methods, computational tools, and visual exploration modules for data input and the results obtainable in MEGA is provided.
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Evaluation of iron catalysts for the Fenton-like remediation of diesel-contaminated soils
Richard J. Watts,Samuel E. Dilly +1 more
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Photodecomposition of the Carbamate Pesticide Carbofuran: Kinetics and the Influence of Dissolved Organic Matter
John Bachman,Howard H. Patterson +1 more
TL;DR: In this paper, the photodecomposition of carbofuran, a carbamate pesticide with high oral toxicity, was examined in the presence of various samples of dissolved organic matter (DOM).
Journal ArticleDOI
Biodegradation of beta-cypermethrin and 3-phenoxybenzoic acid by a novel Ochrobactrum lupini DG-S-01.
Shaohua Chen,Meiying Hu,Jingjing Liu,Guohua Zhong,Liu Yang,Muhammad Rizwan-ul-Haq,Haitao Han +6 more
TL;DR: Results reveal that DG-S-01 may possess potential to be used in bioremediation of pyrethroid-contaminated environment and was identified as Ochrobactrum lupini.
Journal ArticleDOI
An assessment of the efficiency of fungal DNA extraction methods for maximizing the detection of medically important fungi using PCR.
TL;DR: Examination by light microscopy showed that grinding with mortar and pestle was the most efficient means of disrupting the rigid fungal cell walls of hyphae and conidia and DNA quality was confirmed by the successful PCR amplification of the conserved region of the fungal 18S small-subunit rRNA multicopy gene.