title: Introduction of potential sex factors into Rhizobium japonicum.
mesh_terms: D003227:Conjugation, Genetic; D004926:Escherichia coli / Q000235:genetics; D009586:Nitrogen Fixation; D011550:Pseudomonas aeruginosa / Q000235:genetics; D011815:R Factors; D012231:Rhizobium / Q000235:genetics*