Changes in photosynthesis, pigment composition and glutathione contents in two Antarctic lichens during a light stress and recovery

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F14%3A00076610" target="_blank" >RIV/00216224:14310/14:00076610 - isvavai.cz</a>
Result on the web
<a href="http://link.springer.com/article/10.1007%2Fs11099-014-0060-7#" target="_blank" >http://link.springer.com/article/10.1007%2Fs11099-014-0060-7#</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11099-014-0060-7" target="_blank" >10.1007/s11099-014-0060-7</a>

Result language
angličtina
Original language name
Changes in photosynthesis, pigment composition and glutathione contents in two Antarctic lichens during a light stress and recovery
Original language description
Over last decades, several studies have been focused on short-term high light stress in lichens under laboratory conditions. Such studies reported a strong photoinhibition of photosynthesis accompanied by a partial photodestruction of PSII, involvement of photoprotective mechanisms, and resynthetic processes into gradual recovery. In our paper, we applied medium [800 micromol(photon) m2 s1] light stress to induce negative changes in PSII funcioning as well as pigment and glutathione (GSH) content in twoAntarctic fruticose lichen species. Chlorophyll (Chl) fluorescence parameters, such as potential and effective quantum yield of photosynthetic processes and fast transients (OJIP) recorded during high light exposition and recovery, revealed that Usnea antarctica was less susceptible to photoinhibition than U. aurantiaco-atra. This might be supported by a more pronounced high light-induced reduction in Chl a and b contents in U. aurantiaco-atra compared with U. antarctica.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EF - Botany
OECD FORD branch
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Project
<a href="/en/project/LM2010009" target="_blank" >LM2010009: CzechPolar ? Czech Polar Stations: Construction and management</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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