1406-65-1 Arabidopsis Proteins Chlorophyll Journal Article Light-Harvesting Protein Complexes Membrane Proteins PGR5 protein, Arabidopsis PGRL1 protein, Arabidopsis Photosynthetic Reaction Center Complex Proteins Photosystem II Protein Complex Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. cyclic electron transport frequency analysis nonphotochemical quenching photosynthetic oscillation regulation