期刊
BIOTECHNOLOGY LETTERS
卷 27, 期 23-24, 页码 1909-1913出版社
SPRINGER
DOI: 10.1007/s10529-005-3902-3
关键词
allethrin; bioremediation; pyrethroids
Allethrin is a major mosquito repellent agent. To degrade allethrin present in used mats and the environment, a bacterium capable of utilizing allethrin was isolated. This isolate, an Acidomonas sp., grew in minimal medium with 16 mM allethrin as sole source of carbon and degraded > 70% of it in 72 h, with negligible residual metabolites in the medium. Culture. ltrates collected after 48 h and 72 h showed presence of (i) cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl), (ii) 2-ethyl-1,3-dimethylcyclopent- 2-ene-carboxylic acid (iii) chrysanthemic acid and (iv) allethrolone [2-cyclopenten-l-one, 4-hydroxy-3-methyl-2(-2-propenyl)] as the major metabolites with 2 minor metabolites. Allethrin is thus metabolized by a hydrolytic pathway followed by oxidation and dehydrogenation.
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