Anaerobic elemental sulfur reduction by fungus Fusarium oxysporum.

Anaerobic elemental sulfur reduction by fungus Fusarium oxysporum. Research Abstract Details 

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Anaerobic elemental sulfur reduction by fungus Fusarium oxysporum. Abstract Text:

Tsuyoshi Abe,Takayuki Hoshino,Akira Nakamura,Naoki Takaya,Tsuyoshi Abe,Takayuki Hoshino,Akira Nakamura,Naoki Takaya,

Reduction of inorganic sulfur compounds by the fungus Fusarium oxysporum was examined. When transferred from a normoxic to an anoxic environment, F. oxysporum reduced elemental sulfur to hydrogen sulfide (H2S). This reaction accompanied fungal growth and oxidation of the carbon source (ethanol) to acetate. Over 2-fold more of H2S than of acetate was produced, which is the theoretical correlation for the oxidation of ethanol to acetate. NADH-dependent sulfur reductase (SR) activity was detected in cell-free extracts of the H2S-producing fungus, and was found to be up-regulated under the anaerobic conditions. On the other hands both O2 consumption by the cells and cytochrome c oxidase activity by the crude mitochondrial fractions decreased. These results indicate that H2S production involving SR was due to a novel dissimilation mechanism of F. oxysporum, and that the fungus adapts to anaerobic conditions by replacing the energy-producing mechanism of O2 respiration with sulfur reduction.

Anaerobic elemental sulfur reduction by fungus Fusarium oxysporum. Publishing Authors By Initials

T Abe,T Hoshino,A Nakamura,N Takaya,T Abe,T Hoshino,A Nakamura,N Takaya,

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Anaerobic elemental sulfur reduction by fungus Fusarium oxysporum. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Bioscience, biotechnology, and biochemistry

VOLUME: 71

Page Numbers: 2402-7

Journal Abbreviation: Biosci. Biotechnol. Biochem.

ISSN: 0916-8451

DAY: 7

MONTH: 10

YEAR: 2007

Anaerobic elemental sulfur reduction by fungus Fusarium oxysporum. Information

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LANGUAGE: eng

NlmUniqueID: 9205717

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Grant and Affiliation Information for Anaerobic elemental sulfur reduction by fungus Fusarium oxysporum.

AFFILIATION: Graduate School of Life and Environmental Sciences, University of Tsukuba, Japan.

Country: Japan

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MEDLINETA: Biosci Biotechnol Biochem

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