Abstract
Addition of ammonium to N2 fixing cultures of Azotobacter vinelandii, Klebsiella pneumoniae and Clostridium pasteurianum rapidly reduced the intracellular levels of guanosine 5′-diphosphate 3′-diphosphate (ppGpp) by 70–90%. This change might reflect a regulatory role of ppGpp in nitrogen metabolism.
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Abbreviations
- ppGpp:
-
guanosine 5′-diphosphate 3′-diphosphate
References
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Kleiner, D., Phillips, S. Relative levels of guanosine 5′-diphosphate 3′-diphosphate (ppGpp) in some N2 fixing bacteria during derepression and repression of nitrogenase. Arch. Microbiol. 128, 341–342 (1981). https://doi.org/10.1007/BF00422542
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DOI: https://doi.org/10.1007/BF00422542