Evaluation of Chlorpyrifos Tolerance and Degradation by Non-Toxigenic Aspergillus Section Flavi Strains Isolated from Agricultural Soils

Carranza, Cecilia Soledad; Aluffi, Melisa Eglé; Barberis, Carla Lorena; Magnoli, Carina Elizabeth

doi:10.20546/ijcmas.2016.507.001

Cited by 4 publications

(1 citation statement)

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“…In recent years and fungi have also been used in the degradation of OPs. Ramadevi et al (2012) reported that they have broad-spectrum pesticide degradation characteristics, as well as biological safety, economic feasibility and highly efficient degradation activity tolerance and are widely used in the pesticide bioremediation of contaminated soil water systems; they can even grow in contaminated soil water systems with a chlorpyrifos concentration of 700 mg. Optimized by response surface methodology, Aspergillus niger MK640786 effectively reduced diazinon and achieved a degradation rate of 82% under incubation conditions of 30°C, an initial concentration of 25 mg/L, a pH value of 5 and an incubation time of 7 days ( Chen et al, 2012 ; Carranza et al, 2016 ). Aspergillus had different degradation efficiencies of diazinon under different environmental conditions.…”

Section: Microbial Degradation Of Diazinonmentioning

confidence: 99%

Environmental Occurrence, Toxicity Concerns, and Degradation of Diazinon Using a Microbial System

Zhou

et al. 2021

Front. Microbiol.

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Diazinon is an organophosphorus pesticide widely used to control cabbage insects, cotton aphids and underground pests. The continuous application of diazinon in agricultural activities has caused both ecological risk and biological hazards in the environment. Diazinon can be degraded via physical and chemical methods such as photocatalysis, adsorption and advanced oxidation. The microbial degradation of diazinon is found to be more effective than physicochemical methods for its complete clean-up from contaminated soil and water environments. The microbial strains belonging to Ochrobactrum sp., Stenotrophomonas sp., Lactobacillus brevis, Serratia marcescens, Aspergillus niger, Rhodotorula glutinis, and Rhodotorula rubra were found to be very promising for the ecofriendly removal of diazinon. The degradation pathways of diazinon and the fate of several metabolites were investigated. In addition, a variety of diazinon-degrading enzymes, such as hydrolase, acid phosphatase, laccase, cytochrome P450, and flavin monooxygenase were also discovered to play a crucial role in the biodegradation of diazinon. However, many unanswered questions still exist regarding the environmental fate and degradation mechanisms of this pesticide. The catalytic mechanisms responsible for enzymatic degradation remain unexplained, and ecotechnological techniques need to be applied to gain a comprehensive understanding of these issues. Hence, this review article provides in-depth information about the impact and toxicity of diazinon in living systems and discusses the developed ecotechnological remedial methods used for the effective biodegradation of diazinon in a contaminated environment.

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Section: Microbial Degradation Of Diazinonmentioning

confidence: 99%