Work

Early Effects of Illumination on the Activity of Some Photosynthetic Enzymes

Year: 1967

Type: article

Abstract: Leaves of dark-grown corn (Zea mays) were illuminated for periods ranging from 3 minutes to 12 hours. The changes in the activities of ribose-5-phosphate isomerase, ribulose-5-phosphate kinase, and ribulose-1,5-diphosphate carboxylase were followed.The activity of ribose-5-phosphate isomerase did not change significantly until between 12 and 24 hours of illumination. An increase in ribulose-5-phosphate kinase activity occurred after a lag of about 6 hours. The increase in carboxylase activity began after 3 minutes of illumination and increased until after 3 to 6 hours in the light, after which it began to decline. The increases in these enzymes appear to be the result of protein synthesis.

Source: PLANT PHYSIOLOGY

DOI: 10.1104/pp.42.1.1

Authors: Spring Chen, Daniel McMahon, Lawrence Bogorad

Institution: University of Chicago

Language: English

Topic: Photosynthetic Processes and Mechanisms

Subfield: Molecular Biology

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

SDG: Zero hunger

Open Access status: bronze

Funders: National Science Foundation, University of Chicago, National Institute of General Medical Sciences