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A new Klebsiella species, K. variicola, is proposed on the basis of total DNA-DNA hybridization, on the monophyly observed in the phylogenetic analysis derived from the sequences of rpoB, gyrA, mdh, infB, phoE and nifH genes and on distinct phenotypic traits. The bacteria from this new species seem to be genetically isolated from K. pneumoniae strains, do not ferment adonitol and were obtained from...
Nitrogen-fixing bacteria were isolated from surface sterilized banana (Musa spp.) plants and constituted a minor proportion of banana endophytic bacteria. Some isolates were characterized by alloenzyme profiles, biochemical tests, 16S rRNA and rpoB partial gene sequences, plasmid profiles and plant colonization. A large group of enterobacterial isolates that could not be clearly affiliated, most of...
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