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. 1991 May;57(5):1570-2.
doi: 10.1128/aem.57.5.1570-1572.1991.

Phenotypic Diversity among Strains of Bradyrhizobium japonicum Belonging to Serogroup 110

H A Basit  1 , J S Angle, S Salem, E M Gewaily, S I Kotob, P van Berkum
Affiliations

Phenotypic Diversity among Strains of Bradyrhizobium japonicum Belonging to Serogroup 110

H A Basit et al. Appl Environ Microbiol. 1991 May.

Abstract

Thirty-four strains of Bradyrhizobium japonicum within serogroup 110 were examined for phenotypic diversity. The strains differed in their abilities to nodulate and fix dinitrogen with Glycine max (L.) Merr. cv. Williams. Thirteen strains expressed uptake hydrogenase activity when induced as free-living cultures in the presence of 2% hydrogen and oxygen. Six bacteriophage susceptibility reactions were observed. Each of the strains produced either a large, mucoid or a small, dry colony morphology, but colony type was not related to effectiveness for nitrogen fixation.

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