... replication initiation proteins (RepA, RepB) necessary for replication in various hosts (Pagatto and ... plasmid is conjugative and carries the genes necessary for transfer initiation between bacterial hosts...Providencia spp., Pseudomonas spp., Rhizobium leguminosarum, R. meliloti, Rhodobacter sphaeroides, R. capsulatus...Providencia stuartii, Pseudomonas spp., Rhizobium leguminosarum, R. trifolii, Salmonella enteritidis, S. typhimurium...fluorescens, P. putida, Rhizobium meliloti, R. leguminosarum by. viciae, Rhodobacter sphaeroides, Salmonella...