Transfer of Sym-plasmids into symbiotically active and asymbiotic rhizobia strains: properties of recombinants and possible evolutionary consequences | Zendy

Н. А. Проворов | Zendy; И. Г. Фокина | Zendy; Marina L. Roumiantseva | Zendy; Б. В. Симаров | Zendy

Open Access

Transfer of Sym-plasmids into symbiotically active and asymbiotic rhizobia strains: properties of recombinants and possible evolutionary consequences

Author(s) -

Н. А. Проворов,

И. Г. Фокина,

Marina L. Roumiantseva,

Б. В. Симаров

Publication year - 2004

Publication title -

ecological genetics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.148

H-Index - 3

eISSN - 2411-9202

pISSN - 1811-0932

DOI - 10.17816/ecogen2229-34

Subject(s) - rhizobia , plasmid , biology , mutant , bacteria , microbiology and biotechnology , strain (injury) , genetics , symbiosis , gene , anatomy

Transfer of Sym-plasmids from the clover rhizobia to avirulent mutants of the same rhizobia species or of alfalfa rhizobia resulted in recombinants with a restored symbiotic activity. Transfer of these plasmids into the wild type isogenic strains lead to a decrease of their symbiotic activity. These data confirm the hypothesis on the crucial role of avirulent rhizobia strains in the transfer of Sym-plasmids which directs evolution of these bacteria

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