Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1978 Dec;136(3):1197-200.
doi: 10.1128/jb.136.3.1197-1200.1978.

Catabolite-repression-like phenomenon in Rhizobium meliloti

D S Ucker, E R Signer

Catabolite-repression-like phenomenon in Rhizobium meliloti

D S Ucker et al. J Bacteriol. 1978 Dec.

Abstract

We report a phenomenon similar to catabolite repression in Rhizobium meliloti. Succinate, which allows the highest observed rate of growth of R. meliloti, caused an immediate reduction of beta-galactosidase activity when added to cells growing in lactose. A Lac- mutant was unaltered in nodulation and nitrogen fixation capacities, but a pleiotropic mutant deficient in several catabolic properties was unable to produce effective nitrogen-fixing nodules.

PubMed Disclaimer

References

    1. Proc Natl Acad Sci U S A. 1977 May;74(5):2076-8 - PubMed
    1. J Bacteriol. 1977 Jul;131(1):179-87 - PubMed
    1. Biochem Biophys Res Commun. 1969 Sep 24;37(1):151-7 - PubMed
    1. J Bacteriol. 1969 Mar;97(3):1184-91 - PubMed
    1. Plant Physiol. 1968 Aug;43(8):1185-207 - PubMed

Publication types

MeSH terms

LinkOut - more resources