Resistance of Antarctic lichens and freshwater algae from James Ross Island to radiation, temperature, dehydration, UV-B and salt stress assessed by photosynthetic parameters
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F14%3A00076371" target="_blank" >RIV/00216224:14310/14:00076371 - isvavai.cz</a>
Výsledek na webu
<a href="http://www.scar.org" target="_blank" >http://www.scar.org</a>
DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Resistance of Antarctic lichens and freshwater algae from James Ross Island to radiation, temperature, dehydration, UV-B and salt stress assessed by photosynthetic parameters
Popis výsledku v původním jazyce
Lichen species Usnea antarctica, Usnea aurantiaco-atra, Xanthoria elegans, and algae Klebsormidium sp. and Zygnema sp. were investigated in our study by various biochemical and biophysical approaches in order to evaluate their resistance to particular environmental factors. The methods comprised oxymetric, fluorometric (fast (OJIP), and slow Chl fluorescence curves with quenching analysis), spectrophotometric methods (UV screens, photosynthetic pigments, glutathione). In lichens, short-term photoinhibition using (i) high, (ii) medium light doses were used. Involvement of photoprotective mechanisms was investigated. Chl fluorescence parameters, such FV/FM, yield of PSII, fast transient (OJIP) revealed that Usnea antarctica was less susceptible to photoinhibition than U. aurantiaco-atra. More pronounced reduction in Chla,b contents was found in U. aurantiaco-atra than U. antarctica.
Název v anglickém jazyce
Resistance of Antarctic lichens and freshwater algae from James Ross Island to radiation, temperature, dehydration, UV-B and salt stress assessed by photosynthetic parameters
Popis výsledku anglicky
Lichen species Usnea antarctica, Usnea aurantiaco-atra, Xanthoria elegans, and algae Klebsormidium sp. and Zygnema sp. were investigated in our study by various biochemical and biophysical approaches in order to evaluate their resistance to particular environmental factors. The methods comprised oxymetric, fluorometric (fast (OJIP), and slow Chl fluorescence curves with quenching analysis), spectrophotometric methods (UV screens, photosynthetic pigments, glutathione). In lichens, short-term photoinhibition using (i) high, (ii) medium light doses were used. Involvement of photoprotective mechanisms was investigated. Chl fluorescence parameters, such FV/FM, yield of PSII, fast transient (OJIP) revealed that Usnea antarctica was less susceptible to photoinhibition than U. aurantiaco-atra. More pronounced reduction in Chla,b contents was found in U. aurantiaco-atra than U. antarctica.
Klasifikace
Druh
O - Ostatní výsledky
CEP obor
EF - Botanika
OECD FORD obor
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Návaznosti výsledku
Projekt
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Návaznosti
Z - Vyzkumny zamer (s odkazem do CEZ)
Ostatní
Rok uplatnění
2014
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů