摘要： Choline chloride can increase the activities of Hill reaction and ATPase in isolatedchloroplast from wheat leaves. It can also increase the activities of ribulose-1, 5-bisphosphate car-boxylase (RuBPCase EC 4. 1. 1. 39) and glyceraldehyde-3-phosphate dehydrogenase(G-3-PDHEC 1. 2. 1. 13) with the method of vacuum infiltration. But higher concentrations of choline chlo-ride tends to inhibite the activities of these enzymes. As a result of choline chloride treatment theamounts of both protein and chlorophyll can be increased, and the photosynthetic rate can beraised,too. The above data suggest that the choline chloride may act on the enzymes involved inlight reaction and dark reaction in the photosynthesis.

关键词: choline chloride, wheat, photosynthesis