vita 3 : rhizobium strain cb756 ) , rapidly increasing nitrogenase ( ec 1.7.99.2 ) activity and leghaemoglobin content were accompanied by rapid increases in activities of glutamine synthetase ( ec 6.3.1.2 ) , glutamate synthase ( ec 2.6.1.53 ) , enzymes of denovo purine synthesis ( forming inosine monophosphate ) xanthine oxidoreductase ( ec 1.2.3.2 ) , urate oxidase ( ec 1.7.3.3 ) , phosphoenolpyruvate carboxylase ( ec 4.1.1.31 ) and led to increased export of ureides ( allantoin and allantoic acid ) to the shoot of the host plant in the xylem .
C0028174
nitrogenase
C0030016
ec