title: [A mutation provoking adenine auxotrophy and loss of nitrogen fixation power in Rhizobium meliloti].
mesh_terms: D000225:Adenine / Q000378:metabolism*; D002463:Cell Membrane Permeability; D007042:Hypoxanthines / Q000378:metabolism; D009154:Mutation; D009586:Nitrogen Fixation; D010944:Plants; D012231:Rhizobium / Q000378:metabolism*; D013559:Symbiosis
chemical_list: D007042:Hypoxanthines; D000225:Adenine
vernacular_title: Une mutation provoquant l'auxotrophie pour l'adénine et la perte du pouvoir fixateur d'azote chez Rhizobium meliloti.