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Regulation of nitrogen fixation in Rhodospirillum rubrum grown under dark, fermentative conditions

Journal Article · · J. Bacteriol.; (United States)
OSTI ID:6203799
Rhodospirillum rubrum was shown to grow fermentatively on fructose with N/sub 2/ as a nitrogen source. The nitrogenase activity of these cells was regulated by the NH/sub 4//sup +/ switch-off/switch-on mechanism in a manner identical to that for photosynthetically grown cells. In vitro, the inactive nitrogenase Fe protein from fermenting cells was reactivated by an endogenous membrane-bound, Mn/sup 2 +/-dependent activating enzyme that was interchangeable with the activating enzyme isolated from photosynthetic membranes.
Research Organization:
Solar Energy Research Institute, Golden, CO
OSTI ID:
6203799
Journal Information:
J. Bacteriol.; (United States), Journal Name: J. Bacteriol.; (United States) Vol. 162:3; ISSN JOBAA
Country of Publication:
United States
Language:
English