Isolation of a soil bacterium capable of biodegradation and detoxification of endosulfan and endosulfan sulfate

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Title
Isolation of a soil bacterium capable of biodegradation and detoxification of endosulfan and endosulfan sulfate
Author(s)
J B Lee; H Y Sohn; Kee Sun Shin; M S Jo; J E Kim; S W Lee; J W Shin; E J Kum; G S Kwon
Bibliographic Citation
Journal of Agricultural and Food Chemistry, vol. 54, no. 23, pp. 8824-8828
Publication Year
2006
Abstract
Endosulfan, an endocrine disrupting chemical, is a widely used cyclodiene organochlorine pesticide worldwide, and it blocks neuronal GABA A-gated chloride channels in mammals and aquatic organisms. Endosulfan and its metabolites, such as endosulfan sulfate, are persistent in environments and are considered as toxic chemicals. For bioremediation of endosulfan, in this study, an attempt was made to isolate an endosulfan and endosulfan sulfate degrading bacterium from endosulfan-polluted agricultural soil. Through repetitive enrichment and successive subculture using endosulfan or endosulfan sulfate as the sole carbon source, a bacterium KS-2P was isolated. The KS-2P was identified as Pseudomonas sp. on the basis of the results of a 16S rDNA sequencing analysis and MIDI test. The degradation ratios for endosulfan or endosulfan sulfate in minimal medium containing endosulfan (23.5 μg mL-1) or endosulfan sulfate (21 μg mL-1) were 52% and 71%, respectively. Our results suggest that Pseudomonas sp. KS-2P has potential as a biocatalyst for endosulfan bioremediation.
Keyword
Pseudomonas sp.EndosulfanEndosulfan sulfateBiodegradationCyclodienesDetoxification
ISSN
0021-8561
Publisher
Amer Chem Soc
DOI
http://dx.doi.org/10.1021/jf061276e
Type
Article
Appears in Collections:
Division of Biomedical Research > Microbiome Convergence Research Center > 1. Journal Articles
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