Isolation from soil of Rhizobium leguminosarum lacking symbiotic information
1989; Canadian Science Publishing; Volume: 35; Issue: 4 Linguagem: Inglês
10.1139/m89-071
ISSN1480-3275
AutoresGloria Soberón‐Chávez, Rebeca Nájera,
Tópico(s)Legume Nitrogen Fixing Symbiosis
ResumoBacteria resembling Rhizobium leguminosarum, but lacking symbiotic information, were isolated from soil of two different geographical origins. One of these bacteria belongs to a previously described Rhizobium leguminosarum bv. phaseoli somatic serogroup, is fully complemented for nodulation and nitrogen fixation by an R. leguminosarum bv. phaseoli symbiotic plasmid, and is able to compete for bean nodulation with indigenous R. leguminosarum bv. phaseoli strains. This is the first report giving evidence for persistence in soil of Rhizobium lacking symbiotic information.Key words: Rhizobium ecology, symbiotic plasmid, nodulation, plasmid transfer.
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