Effect of salinity on photosynthesis and glycollate dehydrogenase of spirulina subsalsa and synechocystis sp

Abstract

Most of the glycollate dehydrogenase activity was found associated within the thylakoid membranes of two halotolerant cyanobacteria, Spirulina subsalsa and Synechocystis sp. Highest enzyme activity was present in algae grown in the presence of 0-9 M NaCl with decreased enzyme activity at higher NaCl concentrations. Photosystem II, photosystem I and NADP-photoreduction were found to be more tolerant than glycollate dehydrogenase to salt concentration. © 1989 Taylor & Francis Group, LLC.