Abstract
Membranes of the green sulfur bacterium, Chlorobium limicola f, thiosulfatophilum, catalyze the reduction of externally added isoprenoid quinones by sulfide. This activity is highly sensitive to stigmatellin and aurachins. It is also inhibited by 2-n-nonyl-4-hydroxyquinoline-N-oxide, antimycin, myxothiazol and cyanide. It is concluded that in sulfide oxidizing bacteria like Chlorobium, sulfide oxidation involves a sulfide-quinone reductase (SQR) similar to the one found in Oscilatoria limnetica [Arieli, B., Padan, E. and Shahak, Y. (1991) J. Biol. Chem. 266. 104-111].
Original language | English |
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Pages (from-to) | 127-130 |
Number of pages | 4 |
Journal | FEBS Letters |
Volume | 299 |
Issue number | 2 |
DOIs | |
State | Published - 9 Mar 1992 |
Keywords
- Chlorobium limicola
- Electron transport
- Photosynthesis
- Quinone reductions
- Sulfide oxidation