Journal Article Photosystem II Protein Complex Research Support, Non-U.S. Gov't regulation 1406-65-1 142M471B3J Arabidopsis Proteins Carbon Dioxide Chlorophyll Fluctuating light Kok method Light-Harvesting Protein Complexes Membrane Proteins PGR5 protein, Arabidopsis PGRL1 protein, Arabidopsis Photosynthetic Reaction Center Complex Proteins Photosystem I Protein Complex Pisum sativum Research Support, U.S. Gov't, Non-P.H.S. Yin method cyclic electron transport day respiration forced oscillations frequency analysis nonphotochemical quenching pea photorespiration photosynthesis photosynthetic oscillation photosystem I and II