Photoinactivation of Photosystem II at low light intensity. Mathematical models

Szilárd, András and Sass, László and Vass, Imre: Photoinactivation of Photosystem II at low light intensity. Mathematical models. In: Acta biologica Szegediensis, (46) 3-4. pp. 167-169. (2002)

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Abstract

We studied the effect of low light intensity on Photosystem II (PSII) of thylakoid membranes isolated form spinach. The application of low frequency single turnover flashes results in the decreased oxygen evolving activity of PSII. This effect was explained in the framework of a model, which assumes that saturating visible light flashes at low frequency can result in the degradation of the D1 protein, since S23/Q8 and S2/Qa recombinations generate singlet oxygen through the intermediate triplet chlorophyll formation. We propose a pathway for the light-induced transitions and dark period processes of the S-states, which results the best fit of our experimental data.

Item Type: Article
Heading title: Photosynthesis, the effects of UV-B irradiation; Proceedings of the 7th Hungarian Congress on Plant Physiology
Journal or Publication Title: Acta biologica Szegediensis
Date: 2002
Volume: 46
Number: 3-4
ISSN: 1588-385X
Page Range: pp. 167-169
Language: angol
Event Title: Hungarian Congress on Plant Physiology, 7., 2002, Szeged
Uncontrolled Keywords: Természettudomány, Biológia
Additional Information: Bibliogr.: 169. p.; Abstract
Date Deposited: 2016. Oct. 17. 09:25
Last Modified: 2018. May. 28. 11:35
URI: http://acta.bibl.u-szeged.hu/id/eprint/22546

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