論文 - 詳細
| RRC ID | 15422 |
|---|---|
| 著者 | Abe T, Hoshino T, Nakamura A, Takaya N. |
| タイトル | Anaerobic elemental sulfur reduction by fungus Fusarium oxysporum. |
| ジャーナル | Biosci Biotechnol Biochem |
| Abstract |
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. |
| 巻・号 | 71(10) |
| ページ | 2402-7 |
| 公開日 | 2007-10-1 |
| DOI | 10.1271/bbb.70083 |
| PII | JST.JSTAGE/bbb/70083 |
| PMID | 17928705 |
| MeSH | Acetates / metabolism Anaerobiosis Cell-Free System Electron Transport Complex IV / metabolism Ethanol / metabolism Fusarium / metabolism* Hydrogen Sulfide / metabolism Mitochondria / metabolism Oxidation-Reduction Oxidoreductases / metabolism Oxygen Consumption Sulfur / metabolism* |
| IF | 1.516 |
| 引用数 | 22 |
| WOS 分野 | FOOD SCIENCE & TECHNOLOGY CHEMISTRY, APPLIED BIOTECHNOLOGY & APPLIED MICROBIOLOGY BIOCHEMISTRY & MOLECULAR BIOLOGY |
| リソース情報 | |
| 一般微生物 | JCM 11502 |