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  • Title: Localization of nodulation gene on the chromosome of Rhizobium meliloti.
    Author: Małek W.
    Journal: Acta Microbiol Pol; 1983; 32(1):11-8. PubMed ID: 6194660.
    Abstract:
    Using N-methyl-N'-nitro-N-nitrosoguanidine mutant RM54 of Rhizobium meliloti L5-30 defective in the nodulation process (Nod-) and in the biosynthesis of adenine was obtained. Nod- phenotype of this mutant was not caused by the auxotrophic mutation. The nod gene is located on the chromosome. The wild type strain of R. meliloti and Nod- mutant RM54 harbour two indigenous plasmids having a molecular weight of 90 Mdal and about 300 Mdal.
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