イノウエ カズヒト   Inoue Kazuhito
  井上 和仁
   所属   神奈川大学  理学部 生物科学科
   職種   教授
言語種別 英語
発行・発表の年月 2010/06
形態種別 学術雑誌
査読 査読あり
招待論文 招待あり
標題 Inorganic sulfur oxidizing system in green sulfur bacteria
執筆形態 共著
掲載誌名 Photosynthesis Research
出版社・発行元 Springer
巻・号・頁 104(2),pp.163-176
著者・共著者 ◎Hidehiro Sakurai, Takuro Ogawa, Michiko Shiga, Kazuhito Inoue
概要 Green sulfur bacteria use various reduced sulfur compounds such as sulfide, elemental sulfur, and thiosulfate as electron donors for photoautotrophic growth. Enzymes that oxidize sulfide in green sulfur bacteria are membrane-bound sulfide-quinone oxidoreductase, periplasmic flavocytochrome c sulfide dehydrogenase, and monomeric flavocytochrome c (SoxF). Some green sulfur bacteria oxidize thiosulfate by the multienzyme system called either the TOMES or Sox composed of the three periplasmic proteins: SoxB, SoxYZ, and SoxAXK with a soluble small molecule cytochrome c as the electron acceptor. The oxidation of sulfide and thiosulfate by these enzymes in vitro is assumed to yield two electrons and result in the transfer of a sulfur atom to persulfides, which are subsequently transformed to elemental sulfur. The elemental sulfur is temporarily stored in the form of globules attached to the extracellular surface of the outer membranes.
DOI 10.1007/s11120-010-9531-2.