Recent data concerning the fixation of CO 2 and the functioning of phosphoenolpyruvate (PEP) carboxylase (EC 4.1.1.31) in legume, nodules are reviewed. The activites of N 2 fixation (acctylene reduction) and PEP carboxylase are correlated Activities of PEP carboxylase are always higher in nodules than in roots. PEP carboxylase is located in the cytosol of the plant part of the nodules. When nodules are fed with 14 CO 2 , radioactivity appears predominantly in malate and aspartate. The resolution of isoenzymes of PEP carboxylase shows one more band in nodules than in related roots. The role of PEP carboxylase in nodule metabolism is discussed.
No takes yet. Share an insight, caveat, or question.
Deroche et al. (1988) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: