These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Derepression of nitrogenase activity in glutamine auxotrophs of Rhodopseudomonas capsulata.
    Author: Wall JD, Gest H.
    Journal: J Bacteriol; 1979 Mar; 137(3):1459-63. PubMed ID: 35518.
    Abstract:
    In contrast to wild-type cells, glutamine auxotrophs of the photosynthetic bacterium Rhodopseudomonas capsulata synthesize nitrogenase, produce H2 (catalyzed by nitrogenase), and continue to reduce dinitrogen to ammonia in the presence of exogenous NH4+. The glutamine synthetase activity of such mutants is less than 2% of that observed in the wild type. It appears that glutamine synthetase plays a significant role in regulation of nitrogenase synthesis in R. capsulata.
    [Abstract] [Full Text] [Related] [New Search]