No abstract available
Keywords:
30 Agricultural, Veterinary and Food Sciences
,31 Biological Sciences
,3004 Crop and Pasture Production
,Amino Acids
,Biological Transport
,Fabaceae
,Host-Pathogen Interactions
,Microscopy, Electron, Transmission
,Mutation
,Phaseolus
,Rhizobium
,Rhizobium leguminosarum
,Sinorhizobium meliloti
,Species Specificity
,Symbiosis
