Changes in composition of pigment-protein complexes of maize subchloroplast fragments induced by phosphorylation of membrane proteins

摘要

Pigment-protein composition of mesophyll chloroplasts in maize inbred lines L 346 and F 7 and their fragments, enriched by photosystem 1 have been studied. Its changes under condition of phosphorylation of membrane proteins have been also investigated. The differences in the ratio of certain pigment-protein complexes in chloroplasts and subchloroplast particles between the lines have been found. It is concluded that phosphorylation causes the migration of PS 2 complex and tightly bound with it light-harvesting complex of PS 2 (LHC II) pool in to the fractions 70 000 g but in the fractions 100 00 g the migration of only the mobile LHC II pool is observed. The lightly bound with PS 2 the LHC II pool is found to be more enriched by monomeric form in comparison with the mobile LHC II pool.