Sn-Glycerol-3-phosphate is a product of starch degradation in isolated chloroplasts from chlamydomonas reinhardii

Abstract

Sn-glycerol-3-phosphate accumulates during starch catabolism by intact isolated chloroplasts from Chlamydom onas reinhardii in the dark. Further products detected mainly were 3-phosphoglyceric acid and triose phosphates with a ratio between 3-phosphoglyceric acid, sn-glycerol-3- phosphate and triose phosphates of 1.0:0.9:0.2. The production of sn-glycerol-3-phosphate by a plastidic glycerol-3-phosphate dehydrogenase provides a reasonable mechanism for regenerating reducing equivalents during continuous starch breakdown in the chloroplast of the alga C. reinhardii. © 1987, Walter de Gruyter. All rights reserved.