Resistance of Antarctic lichens and freshwater algae from James Ross Island to radiation, temperature, dehydration, UV-B and salt stress assessed by photosynthetic parameters
The result's identifiers
Result code in 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>
Result on the web
<a href="http://www.scar.org" target="_blank" >http://www.scar.org</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Resistance of Antarctic lichens and freshwater algae from James Ross Island to radiation, temperature, dehydration, UV-B and salt stress assessed by photosynthetic parameters
Original language description
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.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
EF - Botany
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů