N2 fixation during different physiological stages of Phaseolus vulgaris OAC Rico and its supernodulating mutant R32BS15: The role of assimilate supply to and export from nodules

amino acids anabolism anabolisme anabolismo azote fixation de l'azote haricot commun kidney beans mutant mutantes mutants nitrogen nitrogen fixation nitrogenasa nitrogenase nudosidades radiculares phaseolus vulgaris rhizobium leguminosarum root nodulation root nodules saccharose sucre sucrosa sucrose sugar