Isolation and preliminary characterization of a o-nitrobenzaldehyde-degrading Alcaligenes sp. ND1

A fenvalerate-degrading bacterial strain F-7 was isolated from long-term contaminated sludge. Based on morphological, physiological and biochemical characterization, and phylogenetic analysis of 16S rRNA gene sequence, strain F-7 was identified as Sphingomonas sp. The bacterium could utilize fenvalerate as the sole source of carbon. An amount measuring 100 mg L(-1) fenvalerate was completely degraded within 72 h and 3-phenoxybenzoic acid (3-PBA) was detected as a major metabolite. The result indicates that S. sp. F-7 might metabolize fenvalerate by hydrolysis of carboxylester linkage. It was capable of degrading permethrin, fenpropathrin, beta-cypermethrin, cyhalothrin, deltamethrin, bifenthrin and 3-PBA. Further studies demonstrated that the strain was multi-resistant to heavy metals and antibiotics. In addition, degradative enzymes involved were confirmed as intracellular distributed and constitutively expressed. Furthermore, application of the strain was found to accelerate the removal of fenvalerate in soil. This is the first report of fenvalerate degrading strain isolated from S. sp. These results might help with future research in better understanding of pyrethroid biodegradation and highlight S. sp. F-7 might have potential for practical application in bioremediation of fenvalerate-contaminated sites.

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Isolation and preliminary characterization of a o-nitrobenzaldehyde-degrading Alcaligenes sp. ND1

Cited by 2 publications

References 8 publications

Electrocatalytic reduction of ortho nitrobenzaldehyde using modified aluminum electrode and its determination

Electrocatalytic reduction of ortho nitrobenzaldehyde using modified aluminum electrode and its determination

Isolation and characterization of aSphingomonassp. strain F-7 degrading fenvalerate and its use in bioremediation of contaminated soil

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