Open AccessComparative study of the symbiotic plasmid DNA in free living bacteria and bacteroids of Rhizobium leguminosarum
Author(s) -
Vierny Corinne,
Iaccarino Maurizio
Publication year - 1989
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1989.tb03411.x
Subject(s) - rhizobium leguminosarum , bacteria , plasmid , rhizobium , biology , rhizobiaceae , microbiology and biotechnology , biovar , dna , symbiotic bacteria , strain (injury) , symbiosis , genetics , anatomy
The symbiotic plasmid (pSym) DNA present in bacteroids of strain RCR1001 of Rhizobium leguminosarum biovar viceae has been compared qualitatively and quantitatively with that present in free living bacteria by hybridization experiments with appropriate probes. A decrease in the relative amount of pSym DNA was observed in bacteroids as compared to bacteria. No rearrangements of the symbiotically expressed pSym borne genes were detected in bacteroids.