1. Appelbaum ER, McLoughlin TJ, O'Connell M, Chartrain N (1985) Expression of symbiotic genes ofRhizobium japonicum USDA 191 in other rhizobia. J Bacteriol 163:385–388
2. Bellogín RA, Espuny MR, Guitérrez-Navarro AM, Pérez-Silva J (1984) Polysaccharides and lipopolysaccharides and infectivity ofRhizobium trifolii. Soil Biol Biochem 16:23–26
3. Beynon JL, Beringer JE, Johnston AWB (1980) Plasmids and host-range inRhizobium leguminosarum andRhizobium phaseoli. J Gen Microbiol 120:421–429
4. Brewin NJ, Beringer JE, Buchanan-Wollaston AV, Johnston AWB, Hirsch PR (1980) Transfer of symbiotic genes with bacteriocinogenic plasmids inRhizobium leguminosarum. J Gen Microbiol 116:261–270
5. Brewin NJ, Wood EA, Johnston AWB, Dibb NJ, Hombrecher W (1982) Recombinant nodulation plasmids inRhizobium leguminosarum. J Gen Microbiol 128:1817–1827