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FEMS Microbiol Lett. 1999 Sep 1;178(1):87-93.

Isolation and characterization of a thermophilic Bacillus sp. JF8 capable of degrading polychlorinated biphenyls and naphthalene.

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1
Environmental Biotechnology Laboratory, Railway Technical Research Institute, Tokyo, Japan. mino@rtri.or.jp

Abstract

Bacillus sp. strain JF8, which was isolated from compost, utilizes naphthalene and biphenyl as carbon sources at 60 degrees C. Biphenyl grown cells of strain JF8 barely degraded naphthalene while naphthalene grown cells did not degrade p-chlorobiphenyl, suggesting the existince of two independent degradation pathways. Isolation of JF8N, a mutant strain which can not utilize biphenyl as a carbon source while retaining the ability to utilize naphthalene, supports this hypothesis. Biphenyl grown cells of strain JF8 can degrade several polychlorinated biphenyl congeners including tetra- and pentachlorobiphenyl. bph and nah probes from mesophilic organisms failed to hybridize to strain JF8 DNA.

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