DESTRUCTION OF A SINGLE CHLOROPHYLL IS CORRELATED WITH THE PHOTOINHIBITION OF PHOTOSYSTEM-II WITH A TRANSIENTLY INACTIVE DONOR SIDE

Authors
BUMANN D OESTERHELT D
Citation
D. Bumann et D. Oesterhelt, DESTRUCTION OF A SINGLE CHLOROPHYLL IS CORRELATED WITH THE PHOTOINHIBITION OF PHOTOSYSTEM-II WITH A TRANSIENTLY INACTIVE DONOR SIDE, Proceedings of the National Academy of Sciences of the United Statesof America, 92(26), 1995, pp. 12195-12199
Citations number
71
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Proceedings of the National Academy of Sciences of the United Statesof America → ACNP
ISSN journal
00278424
Volume
92
Issue
26
Year of publication
1995
Pages
12195 - 12199
Database
ISI
SICI code
0027-8424(1995)92:26<12195:DOASCI>2.0.ZU;2-W
Abstract
Pigments destroyed during photoinhibition of water-splitting photosyst em II core complexes from the green alga Chlamydomonas reinhardtii wer e studied. Under conditions of a transiently inactivated donor side, i llumination leads to an irreversible inhibition of the electron transf er at the donor side that is paralleled by the destruction of chloroph ylls a absorbing maxima!ly around 674 and 682 mn. The observed stochio metry of 1 +/- 0.1 destroyed chlorophyll per inhibited photosystem TT suggests that chlorophyll destruction could be the primary photodamage causing the inhibition of photosystem LI under these conditions.