• A membrane enriched in complexes formed of reaction centers, accessory pigments and electron carriers, in which photosynthetic reactions take place. (e-cyanobacterium.org)
  • Photosystem I (PSI, or plastocyanin-ferredoxin oxidoreductase) is one of two photosystems in the photosynthetic light reactions of algae, plants, and cyanobacteria. (wikipedia.org)
  • Louis Duysens first proposed the concepts of Photosystems I and II in 1960, and, in the same year, a proposal by Fay Bendall and Robert Hill assembled earlier discoveries into a coherent theory of serial photosynthetic reactions. (wikipedia.org)
  • Ferredoxin (Fd) is a soluble protein that facilitates reduction of NADP+ to NADPH. (wikipedia.org)