Relaxation of the non-photochemical chlorophyll fluorescence quenching in diatoms: kinetics, components and mechanisms
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F14%3A00431328" target="_blank" >RIV/60077344:_____/14:00431328 - isvavai.cz</a>
Result on the web
<a href="http://rstb.royalsocietypublishing.org" target="_blank" >http://rstb.royalsocietypublishing.org</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1098/rstb.2013.0241" target="_blank" >10.1098/rstb.2013.0241</a>
Alternative languages
Result language
angličtina
Original language name
Relaxation of the non-photochemical chlorophyll fluorescence quenching in diatoms: kinetics, components and mechanisms
Original language description
In this contribution, the relaxation mechanisms of the non-photochemical Chl fluorescence quenching (qN) in diatoms are analyzed. An original nonlinear regression analysis of qN was used to obtain experimental evidences for the existence of three time-resolved qN components in the diatom Phaeodactylum tricornutum, namely qNf, qNi and qNs. qNf (s time-scale) and qNs (h time-scale) are exponential in shape, as qNi (min time-scale) is of sigmoidal nature and is dominant among the three components. Application of metabolic inhibitors (dithiothreitol, ammonium chloride, cadmium and diphenyleneiodonium chloride) allowed the identification of mechanisms on which each component mostly relies. qNi is linked to the relaxation of the pH gradient and the reversalof the xanthophyll cycle. qNs quantifies the stage of photoinhibition caused by the high light exposure, qNf seems to reflect fast conformational changes within thylakoid membranes in the vicinity of the photosystem II complexes.
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
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Philosophical Transactions of the Royal Society B - Biological Sciences
ISSN
0962-8436
e-ISSN
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Volume of the periodical
369
Issue of the periodical within the volume
1640
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
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UT code for WoS article
000332468400015
EID of the result in the Scopus database
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