Journal ArticleDOI
Biodegradation of cypermethrin by Micrococcus sp. strain CPN 1.
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TLDR
A bacterium capable of utilizing pyrethroid pesticide cypermethrin as sole source of carbon was isolated from soil and identified as a Micrococcus sp.Abstract:
A bacterium capable of utilizing pyrethroid pesticide cypermethrin as sole source of carbon was isolated from soil and identified as a Micrococcus sp. The organism also utilized fenvalerate, deltamethrin, perimethrin, 3-phenoxybenzoate, phenol, protocatechuate and catechol as growth substrates. The organism degraded cypermethrin by hydrolysis of ester linkage to yield 3-phenoxybenzoate, leading to loss of its insecticidal activity. 3-Phenoxybenzoate was further metabolized by diphenyl ether cleavage to yield protocatechuate and phenol as evidenced by isolation and identification of metabolites and enzyme activities in the cell-free extracts. Protocatechuate and phenol were oxidized by ortho-cleavage pathway. Thus, the organism was versatile in detoxification and complete mineralization of pyrethroid cypermethrinread more
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Journal ArticleDOI
Screening and Genome Sequencing of Deltamethrin-Degrading Bacterium ZJ6
TL;DR: It was found that ZJ6 has relatively strong deltamethrin degradation ability and high value as a subject for further research, and provides a reference to guide the preparation of pesticide-degrading bacterial agents and environmental remediation.
Journal ArticleDOI
Biodegradation competence of Streptomyces toxytricini D2 isolated from leaves surface of the hybrid cotton crop against β cypermethrin.
Kanda Whangchai,Tran Van Hung,Sarah Al-Rashed,Mathiyazhagan Narayanan,Sabariswaran Kandasamy,Arivalagan Pugazhendhi,Arivalagan Pugazhendhi +6 more
TL;DR: This is the first report, revealed that the S. toxytricini D2 belongs to the Actinobacteria has the potential to degrade the β cypermethrin into less or nontoxic metabolites under optimized conditions.
Journal ArticleDOI
The Midgut Microbiota of Colombian Aedes aegypti Populations with Different Levels of Resistance to the Insecticide Lambda-cyhalothrin.
Andrea Arévalo-Cortés,Ana María Mejía-Jaramillo,Yurany Granada,Heather Coatsworth,Carl Lowenberger,Omar Triana-Chávez +5 more
TL;DR: It is proposed that kdr mutations are important in the development of resistance to lambda-cyhalothrin at low insecticide concentrations but insect symbionts could play an essential role in the metabolization of pyrethroid insecticides at higher concentrations, contributing to the resistant phenotype in Ae.
Journal ArticleDOI
Advances and future prospects of pyrethroids: Toxicity and microbial degradation.
Saurabh Singh,Arpan Mukherjee,Durgesh Kumar Jaiswal,Arthur Prudêncio de Araujo Pereira,Ram Prasad,Minaxi Sharma,Ramesh Chander Kuhad,Amritesh C. Shukla,Jay Prakash Verma +8 more
TL;DR: In this paper , an attempt has been made to analyse the advances and prospects in using pyrethrins and possible technologies to control their harmful effects, along with the impact of pyrethroids on different plants and soil microbial flora.
References
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Journal Article
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Journal ArticleDOI
A procedure for the isolation of deoxyribonucleic acid from micro-organisms
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Book ChapterDOI
[109] Use of ultraviolet absorbance-temperature profile for determining the guanine plus cytosine content of DNA
Manley Mandel,J. Marmur +1 more
TL;DR: The GC content of highly purified DNA samples can be estimated from their thermal denaturation temperatures, employing small amounts of DNA, and a recent interesting observation is that the supercoiled component of polyoma DNA has a Tm which is 17° higher than the circular, nonsupercoiled or linear polyoma components.