title: Four-hourly variations in the activities of malate dehydrogenase (decarboxylating) and phosphopyruvate carboxylase in the cactus (Nopalea dejecta) plant.
mesh_terms: D002262:Carboxy-Lyases / Q000378:metabolism*; D002940:Circadian Rhythm; D008291:Malate Dehydrogenase / Q000378:metabolism*; D010944:Plants / Q000201:enzymology; D013997:Time Factors
chemical_list: D008291:Malate Dehydrogenase; D002262:Carboxy-Lyases