Effects of growth conditions on formation of cytochrome system of a denitrifying bacterium, Pseudomonas stutzeri |
| |
Authors: | KODAMA TAKAO |
| |
Institution: | Biological Institute, Faculty of Science, Nagoya University Nagoya, Japan |
| |
Abstract: | Cytochrome systems in cells of a denitrifying bacterium, Pseudomonasstutzeri (VAN NIEL strain), grown under different atmosphericconditions were compared with reference to the effects of nitrateand nitrite on cytochrome synthesis. When a culture was sufficiently aerated (aerobic conditions),synthesis of all cytochrome components was repressed, regardlessof the presence or absence of nitrate and nitrite. When aeratedmoderately (semi-aerobic conditions), both soluble and paniculatecytochromes c-552 and cytochrome b-558 contents markedly increasedeven in the absence of nitrate and nitrite. Under anaerobic or semi-aerobic conditions, nitrite inducedcytochrome a2c synthesis. This inductive effect of nitritewas counteracted by nitrate. Nitrate also repressed particulatecytochrome c-552 synthesis to some extent but nitrite did not.
1Present address: Department of Biochemistry, Hiroshima UniversitySchool of Dentistry, Hiroshima, Japan (Received June 24, 1969; ) |
| |
Keywords: | |
本文献已被 Oxford 等数据库收录! |
|