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Desulfurization of Benzothiophene by the Gram-Negative Bacterium, Sinorhizobium sp. KT55

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Abstract

Sinorhizobium sp. KT55 was the first Gram-negative isolate to be capable of utilizing benzothiophene as the sole source of sulfur. By GC-MS analysis of metabolites of benzothiophene by this strain, benzothiophene sulfone, benzo[e][1,2]oxathiin S-oxide and o-hydroxystyrene were detected, suggesting that the benzothiophene desulfurization pathway of this strain is benzothiophene → benzothiophene sulfoxide → benzothiophene sulfone → benzo[e][1,2]oxathiin S-oxide →o-hydroxystyrene. Desulfurization activity of this strain was significantly repressed by methionine, cysteine, sulfate, dimethyl sulfoxide, and Casamino acids.

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Authors and Affiliations

  1. Tsukuba Branch of Bio-Refining Process Laboratory, Advanced Technology and Research Institute, Japan Petroleum Energy Center,, 1-1 Higashi Tsukuba, Ibaraki 305-8566, Japan, , , , , , JP

    Yasuhiro Tanaka & Toru Matsui

  2. Bio-Refining Process Laboratory, Advanced Technology and Research Institute, Japan Petroleum Energy Center, Shimizu, Shizuoka 424-0037, Japan, , , , , , JP

    Toshimitsu Onaka & Kenji Maruhashi

  3. National Institute of Bioscience and Human-Technology (NIBH), AIST, MITI, 1-1 Higashi Tsukuba, Ibaraki 305-8566, Japan, , , , , , JP

    Ryuichiro Kurane

Authors
  1. Yasuhiro Tanaka
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  2. Toshimitsu Onaka
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  3. Toru Matsui
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  4. Kenji Maruhashi
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  5. Ryuichiro Kurane
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Received: 5 January 2001/Accepted: 6 February 2001

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Tanaka, Y., Onaka, T., Matsui, T. et al. Desulfurization of Benzothiophene by the Gram-Negative Bacterium, Sinorhizobium sp. KT55. Curr Microbiol 43, 187–191 (2001). https://doi.org/10.1007/s002840010285

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  • DOI: https://doi.org/10.1007/s002840010285

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