| 1 | Author | T. Kentemich, G. Haverkam, H. Bothe | Requires cookie* |
| Title | The Expression of a Third Nitrogenase in the Cyanobacterium Anabaena variabilis  | ||
| Abstract | Physiological experiments indicate that Anabaena variabilis can express either a V-or a Fe-nitrogenase in addition to the conventional, M o-containing enzyme complex. The occur rence o f the Fe-nitrogenase in A. variabilis can also be concluded from D N A -D N A hybridiza tion experiments using cloned anfW or nifW probes coding for the smaller subunit (= nitroge nase reductase) o f the Fe-nitrogenase from Azotobacter vinelandii or for the same subunit o f the M o-nitrogenase from Klebsiella pneumoniae. The cyanobacterium A. variabilis is the first phototroph found to contain all three nitrogenases landii as yet. Vanadium cannot substitute for M o in | ||
| Reference | Z. Naturforsch. 46c, 217 (1991); received November 2 1990 | ||
| Published | 1991 | ||
| Keywords | Alternative N itrogenases, Vanadium-Nitrogenase, Iron-Nitrogenase, Nitrate Reduction, Cyanobacteria, Anabaena variabilis | ||
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