Abstract
A mutant strain of Azotobacter vinelandii that is unable to fix N2 (Nif-) was transformed to Nif+ with DNA from Rhizobium japonicum. Of 50 Nif+ transformants tested, 3 contained the O antigen-related polysaccharide that is present on the cell surface of a nodulating R. japonicum strain, but is absent from a non-nodulating mutant strain.
MeSH Terms
Agglutination Tests
Antigens, Bacterial/analysis
Azotobacter/genetics,immunology,metabolism
Genes
Mutation
Nitrogen Fixation
Polysaccharides, Bacterial/analysis
Rhizobium/genetics,immunology
Transformation, Bacterial
Chemicals
Antigens, Bacterial
Polysaccharides, Bacterial
Authors & Affiliations
3 authors, click to expand affiliations / ORCID
Maier R J
Bishop P E
Brill W J
References (10)
10 references, click to expand
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