Immunocytochemical study of phosphoenolpyruvate carboxylase in nodulatedAlnus glutinosa

摘要

The activities of phosphoenolpyruvate carboxylase (PEP carboxylase, EC 4.1.1.3.1) have been investigated in various organs of young nodulatedAlnus glutinosa. The root nodules exhibited the highest specific enzyme activity when compared with the one in roots and leaves. Furthermore, in the root nodules the PEP carboxylase was predominantly localized in the cytosol of the large cortical cells containing the endophyte vesicles.