title: Is PsbS the site of non-photochemical quenching in photosynthesis?
abstract: The PsbS protein of photosystem II functions in the regulation of photosynthetic light harvesting. Along with a low thylakoid lumen pH and the presence of de-epoxidized xanthophylls, PsbS is necessary for photoprotective thermal dissipation (qE) of excess absorbed light energy in plants, measured as non-photochemical quenching of chlorophyll fluorescence. What is known about PsbS in relation to the hypothesis that this protein is the site of qE is reviewed here.
authors.affiliation: Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720-3102, USA. niyogi@nature.berkeley.edu
authors.forename: Krishna K
authors.initials: KK
authors.lastname: Niyogi
authors.forename: Xiao-Ping
authors.initials: XP
authors.lastname: Li
authors.forename: Vanessa
authors.initials: V
authors.lastname: Rosenberg
authors.forename: Hou-Sung
authors.initials: HS
authors.lastname: Jung
mesh_terms: D000595:Amino Acid Sequence; D056890:Eukaryota; D006863:Hydrogen-Ion Concentration; D008027:Light; D008969:Molecular Sequence Data; D010788:Photosynthesis / Q000502:physiology*; D045322:Photosynthetic Reaction Center Complex Proteins / Q000737:chemistry / Q000502:physiology*; D045332:Photosystem II Protein Complex / Q000737:chemistry / Q000502:physiology*; D010940:Plant Proteins / Q000737:chemistry / Q000502:physiology*; D010944:Plants; D020524:Thylakoids / Q000737:chemistry / Q000502:physiology
chemical_list: D045322:Photosynthetic Reaction Center Complex Proteins; D045332:Photosystem II Protein Complex; D010940:Plant Proteins