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
. 1976 Aug;127(2):763-9.
doi: 10.1128/jb.127.2.763-769.1976.

Ineffective and non-nodulating mutant strains of Rhizobium japonicum

R J Maier, W J Brill

Ineffective and non-nodulating mutant strains of Rhizobium japonicum

R J Maier et al. J Bacteriol. 1976 Aug.

Abstract

Mutant strains of Rhizobium japonicum that were unable to allow the Corsoy cultivar of soybean to reduce acetylene or fix N2 were isolated. These strains grow as well as the wild type in a variety of media. Mutant strains SM1 and SM2 did not form nodules on the host plant; however, they reduced acetylene in the nonsymbiotic assay. Strains SM3 and SM4 produced nodules that did not have the characteristic pink pigment caused by leghemoglobin. The nodules formed by these strains also were small. One mutant strain, SM5, produced large pink nodules. The lesion in this strain seems to be in the gene that specifies nitrogenase component II.

PubMed Disclaimer

References

    1. Biochim Biophys Acta. 1975 Feb 13;381(2):248-56 - PubMed
    1. J Gen Microbiol. 1975 Apr;87(2):343-50 - PubMed
    1. Appl Microbiol. 1975 Aug;30(2):172-7 - PubMed
    1. J Bacteriol. 1975 Mar;121(3):759-65 - PubMed
    1. Biochem Biophys Res Commun. 1975 Jul 22;65(2):625-8 - PubMed

Publication types

LinkOut - more resources