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Molecular cloning and characterization of a sym plasmid locus that regulates cultivar-specific nodulation of soybean by Rhizobium fredii USDA257.

Molecular microbiology - 1 Jul 1993

Meinhardt L W, Krishnan H B, Balatti P A, Pueppke S G

Abstract excerpt

Rhizobium fredii strain USDA257 produces nitrogen-fixing nodules on primitive soybean cultivars such as Peking but fails to nodulate agronomically improved cultivars such as McCall. Transposon-mutant 257DH4 has two new phenotypes: it nodulates McCall, and its ability to do so is sensitive to the presence of parental strain USDA257, i.e. it is subject to competitive nodulation blocking. We have isolated a cosmid...

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PMID: 8412662
DOI: 10.1111/j.1365-2958.1993.tb01665.x

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Molecular cloning and characterization of a sym plasmid locus that regulates cultivar-specific nodulation of soybean by Rhizobium fredii USDA257.PMID 8412662Read ↗

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