Capacity of Antarctic lichen Xanthoria elegans to synthetize photoprotective secondary compounds is affected by supplemetary UV-B doses

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F14%3A00076586" target="_blank" >RIV/00216224:14310/14:00076586 - isvavai.cz</a>
Result on the web
<a href="http://polar.prf.jcu.cz/conference_MATERIALS.htm" target="_blank" >http://polar.prf.jcu.cz/conference_MATERIALS.htm</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Capacity of Antarctic lichen Xanthoria elegans to synthetize photoprotective secondary compounds is affected by supplemetary UV-B doses
Original language description
Lichen thalli of X. elegans were collected at James Ross Island (Antarctica). They were dried under natural field conditions and then transported to the laboratory in Brno, Czech Republic. Before experiments, the thalli were re-wetted for 48 h by demineralized water and wet cellulose sheet located beneath the thalli. During re-wetting, the thalli were exposed to a dim light (20 micromol m-2 s-1 of PAR) at 5oC. Duration of exposition to free supplemental UV-B was 7 days. Three different intensities of UV-B radiaton were used (0.9 W.m-2, 1.4 W.m-2 and 3.0 W.m-2, in the second cycle 0.9 W.m-2, 1.15 W.m-2, 1.4 W.m-2). Samples for further analysis were taken during the exposition after 5, 10, 24, 48 and 168 h. During the exposition chlorophyll fluorescenceparameters were measured using an approach of Kautsky kinetics supplemented with quenching analysis.
Czech name
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Czech description
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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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