Low-light-induced Violaxanthin De-epoxidation in Shortly Preheated Leaves: Uncoupling from ?pH-dependent Non-photochemical Quenching
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F10%3A10212196" target="_blank" >RIV/61989592:15310/10:10212196 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Low-light-induced Violaxanthin De-epoxidation in Shortly Preheated Leaves: Uncoupling from ?pH-dependent Non-photochemical Quenching
Original language description
Plants protect themselves against excessive light by the induction of DpH-dependent non-photochemical quenching (qE) that is associated with de-epoxidation of violaxanthin (V) to zeaxanthin (Z) in thylakoid membranes. In this work, we report that low light (12 ?mol photons m-2 s-1) is sufficient for a marked stimulation of the V to Z conversion in shortly preheated wheat leaves (5 min, 40°C), but without a substantial increase in qE. Re-irradiation of these leaves with high light led to a rapid induction of non-photochemical quenching, implying a potential photoprotective role of low-light-induced Z in preheated leaves. On the contrary to low light conditions, preheated leaves exposed to high light behaved similarly to non-heated leaves with respect tothe V to Z conversion and qE induction. The obtained results indicate that low-light-induced lumen acidification in preheated leaves is high enough to activate V de-epoxidation, but not sufficiently high to induce the formation of quench
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BO - Biophysics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA301%2F08%2F1649" target="_blank" >GA301/08/1649: Modulation of cell division of normal and cancer cells by cyclin-dependent kinase inhibitors</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Photochemistry and Photobiology
ISSN
0031-8655
e-ISSN
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Volume of the periodical
86
Issue of the periodical within the volume
3
Country of publishing house
GB - UNITED KINGDOM
Number of pages
5
Pages from-to
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UT code for WoS article
000277301700034
EID of the result in the Scopus database
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