title: Influence of combined nitrogen on the symbiosis between single colony isolates of Rhizobium CB756 and Macrotyloma axillare.
mesh_terms: D009584:Nitrogen / Q000494:pharmacology*; D063245:Plant Development; D012231:Rhizobium / Q000254:growth & development*; D013559:Symbiosis / Q000187:drug effects*
chemical_list: D009584:Nitrogen