PMID: 11607629Feb 20, 1996Paper

Quenching of chlorophyll fluorescence in the major light-harvesting complex of photosystem II: a systematic study of the effect of carotenoid structure

Proceedings of the National Academy of Sciences of the United States of America
D PhillipA Young

Abstract

The role of carotenoids in quenching of chlorophyll fluorescence in the major light-harvesting complex of photosystem II has been studied with a view to understanding the molecular basis of the control of photoprotective nonradiative energy dissipation by the xanthophyll cycle in vivo. The control of chlorophyll fluorescence quenching in the isolated complex has been investigated in terms of the number of the conjugated double bonds for a series of carotenoids ranging from n = 5-19, giving an estimated first excited singlet state energy from 20,700 cm-1 to 10,120 cm-1. At pH 7.8 the addition of exogenous carotenoids with >=10 conjugated double bonds (including zeaxanthin) stimulated fluorescence quenching relative to the control with no added carotenoid, whereas those with n </= 9 conjugated double bonds (e.g., violaxanthin) had no effect on fluorescence. When quenching in the light-harvesting complex of photosystem II was induced by a lowering of pH to 5.5, carotenoids with n </= 9 conjugated double bonds (including violaxanthin) caused a noticeable inhibition of fluorescence quenching relative to the control. Of the 10 carotenoids tested, quenching induced by the addition of the tertiary amine compound, dibucaine, to isolated...Continue Reading

Citations

Feb 3, 2011·Photosynthesis Research·Jari MartiskainenJouko Korppi-Tommola
Oct 1, 1996·Journal of Photochemistry and Photobiology. B, Biology·A J Young, H A Frank
Dec 10, 1997·Proceedings of the National Academy of Sciences of the United States of America·K K NiyogiA R Grossman
Jun 18, 2015·International Journal of Molecular Sciences·Mariateresa MaldiniGiuseppe Astarita
Sep 26, 2015·Journal of Photochemistry and Photobiology. B, Biology·Christopher D P Duffy, Alexander V Ruban
May 25, 2015·Biochimica Et Biophysica Acta·Elizabeth KishBruno Robert
Jan 13, 2006·Journal of Photochemistry and Photobiology. B, Biology·Katerina StoitchkovaAtanaska Andreeva
Sep 12, 2015·Luminescence : the Journal of Biological and Chemical Luminescence·Lizhang ZengJun Zhou
May 17, 2011·Biochimica Et Biophysica Acta·Alexander V RubanChristopher D P Duffy
May 24, 2014·Journal of Plant Physiology·Reimund Goss, Bernard Lepetit
Aug 17, 2011·Biophysical Journal·Andrew GallBruno Robert
Jan 31, 2012·Biochimica Et Biophysica Acta·Theodoros TsiavosKiriakos Kotzabasis
Sep 12, 1998·Biochimica Et Biophysica Acta·P KernenZ Krupa
Aug 28, 2015·PloS One·Ana-Andreea ArteniAndrew A Pascal
May 31, 2013·The Journal of Biological Chemistry·Maria M Mendes-PintoCristian Ilioaia
Dec 27, 2016·Frontiers in Plant Science·Radek Kaňa, Govindjee
Dec 1, 2001·The Journal of Biological Chemistry·Alexander V RubanPeter Horton
Aug 13, 2002·The Plant Cell·Dafna ElradArthur R Grossman
Jan 9, 2013·The Journal of Physical Chemistry. B·Maria M Mendes-PintoBruno Robert
Jun 1, 1996·Annual Review of Plant Physiology and Plant Molecular Biology·P. HortonR. G. Walters

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