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Photochemical and photoelectrochemical quenching of chlorophyll fluorescence in photosystem II
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SYSNO ASEP 0335115 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Photochemical and photoelectrochemical quenching of chlorophyll fluorescence in photosystem II Překlad názvu Fotochemické a fotoelektrochemické zhášení fluorescence chlorofylu ve Fotosystému II Tvůrce(i) Vredenberg, W. (NL)
Durchan, M. (CZ)
Prášil, Ondřej (MBU-M) RID, ORCIDZdroj.dok. Biochimica Et Biophysica Acta-Bioenergetics. - : Elsevier - ISSN 0005-2728
Roč. 1787, č. 12 (2009), s. 1468-1478Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Chlorophyll a fluorescence ; Photosystem II ; Heterogeneity Vědní obor RIV EE - Mikrobiologie, virologie CEP GA206/08/1683 GA ČR - Grantová agentura ČR CEZ AV0Z50200510 - MBU-M (2005-2011) UT WOS 000270100400006 DOI 10.1016/j.bbabio.2009.06.008 Anotace This paper deals with kinetics and properties of variable fluorescence in leaves and thylakoids upon excitation with low intensity multi-turnover actinic light pulses corresponding with an excitation rate of about 10 Hz. These show a relatively small and amply documented rise in the sub-s time range towards the plateau level Fpl followed by a delayed and S-shaped rise towards a steady state level Fm which is between three and four fold the initial dark fluorescence level Fo. Properties of this retarded slow rise are i) rate of dark recovery is (1–6 s)−1, ii) suppression by low concentration of protonophores, iii) responsiveness to complementary single turnover flash excitation with transient amplitude towards a level Fm which is between five and six fold the initial dark fluorescence level Fo and iv) in harmony with and quantitatively interpretable in terms of a release of photoelectrochemical quenching controlled by the trans-thylakoid proton pump powered by the light-driven Q cycle Pracoviště Mikrobiologický ústav Kontakt Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Rok sběru 2010
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