title: Destruction of a single chlorophyll is correlated with the photoinhibition of photosystem II with a transiently inactive donor side.
abstract: Pigments destroyed during photoinhibition of water-splitting photosystem II core complexes from the green alga Chlamydomonas reinhardtii were studied. Under conditions of a transiently inactivated donor side, illumination leads to an irreversible inhibition of the electron transfer at the donor side that is paralleled by the destruction of chlorophylls a absorbing maximally around 674 and 682 nm. The observed stochiometry of 1 +/- 0.1 destroyed chlorophyll per inhibited photosystem II suggests that chlorophyll destruction could be the primary photodamage causing the inhibition of photosystem II under these conditions.
authors.affiliation: Department of Membrane Biochemistry, Max Planck Institute for Biochemistry, Martinsried, Germany.
authors.forename: D
authors.initials: D
authors.lastname: Bumann
authors.forename: D
authors.initials: D
authors.lastname: Oesterhelt