Light response of the chlorophyll fluorescence parameters and partitioning of absorbed light energy in wild type and npq4 mutant of Arabidopsis thaliana

Várkonyi, Zsuzsanna: Light response of the chlorophyll fluorescence parameters and partitioning of absorbed light energy in wild type and npq4 mutant of Arabidopsis thaliana. Acta biologica Szegediensis, (49) 1-2. pp. 229-232. (2005)

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Abstract

Photoprotective thermal dissipation of absorbed light energy is measured as non-photochemical quenching (NPQ) of chlorophyll fluorescence during exposure of plants to higher light intensities. We investigated the light response behavior of chlorophyll fluorescence and energy partitioning in PSII of npq4 mutant of Arabidopsis thaliana, which is lacking of PsbS protein, to that of the wild type plants. We found that the PsbS protein appears to function not only in thermal dissipation in light via xanthophyll pigments, but also modified the allocation pattern of excitation energy absorbed in the PSII to PSII photochemistry (P), thermal dissipation in light (DL) and excess excitation (E).

Item Type: Article
Event Title: Hungarian Congress on Plant Physiology, 8., 2005, Szeged, Hungarian Conference on Photosynthesis, 6., 2005, Szeged
Journal or Publication Title: Acta biologica Szegediensis
Date: 2005
Volume: 49
Number: 1-2
Page Range: pp. 229-232
ISSN: 1588-385X
Language: angol
Heading title: Photosynthesis; Proceedings
Uncontrolled Keywords: Természettudomány, Biológia
Additional Information: Bibliogr.: p. 213-232.; Abstract
Date Deposited: 2016. Oct. 17. 09:24
Last Modified: 2018. May. 28. 10:44
URI: http://acta.bibl.u-szeged.hu/id/eprint/22734

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