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| Content Provider | PubMed Central |
|---|---|
| Author | Edwards, D. L. Belsole, D. M. Guzik, H. J. Unger, B. W. |
| Abstract | A method is described which permits the selection of mutants of Neurospora crassa that are deficient in succinic dehydrogenase activity. The method relies on the observation that succinic dehydrogenase-deficient strains fail to reduce the dye nitrotetrazolium blue when overlaid with the dye in the presence of succinate and phenazine methosulfate. Wild-type colonies reduced the dye and turned blue, whereas mutant colonies remained colorless. In this communication we present studies of a mutant, SDH-1, isolated by this method. The mutant had 18% of the succinic dehydrogenase activity of the parent strain used in the mutation experiments as determined from the ratio of Vmax activities obtained from Lineweaver-Burk plots. The SDH-1 mutant segregated in a Mendelian manner when back-crossed to its parent strain. Succinate oxidase activity in SDH-1 was low and was markedly inhibited by adenosine 5'-diphosphate. The succinate oxidase activity of the parent strain was high and was not affected by the presence of adenosine 5'-diphosphate. |
| Starting Page | 900 |
| File Format | |
| ISSN | 10985530 |
| e-ISSN | 10985530 |
| Journal | Journal of Bacteriology |
| Issue Number | 2 |
| Volume Number | 137 |
| Language | English |
| Publisher Date | 1979-02-01 |
| Access Restriction | Open |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Molecular Biology Microbiology |
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