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| Content Provider | PubMed Central |
|---|---|
| Author | Tochikubo, Kunio |
| Abstract | The chemical and enzymatic properties of the cytochrome system in the particulate preparations obtained from dormant spores, germinated spores, young vegetative cells, and vegetative cells of Bacillus subtilis PCI219 were investigated. Difference spectra of particulate fractions from dormant spores of this strain suggested the presence of cytochromes a, a 3, b, c(+c 1), and o. All of the cytochrome components were present in dormant spores and in germinated spores and vegetative cells at all stages which were investigated. Concentrations of cytochromes a, a 3, b, and c(+c 1) increased during germination, outgrowth, and vegetative growth, but that of cytochrome o was highest in dormant spores. As the cytochrome components were reducible by reduced nicotinamide adenine dinucleotide (NADH), they were believed to be metabolically active. Difference spectra of whole-cell suspensions of dormant spores and vegetative cells were coincident with those of the particulate fractions. NADH oxidase and cytochrome c oxidase were present in dormant spores, germinated spores, and vegetative cells at all stages after germination, but succinate cytochrome c reductase was not present in dormant spores. Cytochrome c oxidase and succinate cytochrome c reductase activities increased with growth, but NADH oxidase activity was highest in germinated spores and lowest in vegetative cells. There was no striking difference between the effects of respiratory inhibitors on NADH oxidase in dormant spores and those on NADH oxidase in vegetative cells. |
| Starting Page | 652 |
| File Format | |
| ISSN | 10985530 |
| e-ISSN | 10985530 |
| Journal | Journal of Bacteriology |
| Issue Number | 2 |
| Volume Number | 108 |
| Language | English |
| Publisher Date | 1971-11-01 |
| Access Restriction | Open |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Molecular Biology Microbiology |
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