Changes in photosynthesis, pigment composition and glutathione contents in two Antarctic lichens during a light stress and recovery
Identifikátory výsledku
Kód výsledku v 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>
Výsledek na webu
<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>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Changes in photosynthesis, pigment composition and glutathione contents in two Antarctic lichens during a light stress and recovery
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
Changes in photosynthesis, pigment composition and glutathione contents in two Antarctic lichens during a light stress and recovery
Popis výsledku anglicky
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.
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
EF - Botanika
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/LM2010009" target="_blank" >LM2010009: Projekt CzechPolar - České polární stanice: Stavba a operační náklady</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2014
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Photosynthetica
ISSN
0300-3604
e-ISSN
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Svazek periodika
52
Číslo periodika v rámci svazku
4
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
10
Strana od-do
538-547
Kód UT WoS článku
000345394500008
EID výsledku v databázi Scopus
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