Detailed Information on Publication Record
2018
Effect of UV-B radiation on the content of UV-B absorbing compounds and photosynthetic parameters in Parmotrema austrosinense from two contrasting habitats
BARTÁK, Miloš, Eva PLÁTENÍKOVÁ, Hebe CARRERAS, Josef HÁJEK, Jana MORKUSOVÁ et. al.Basic information
Original name
Effect of UV-B radiation on the content of UV-B absorbing compounds and photosynthetic parameters in Parmotrema austrosinense from two contrasting habitats
Name in Czech
Vliv UV-B záření na obsah UV-B absorbujících látek a parametry fotosyntézy u Parmotrema austrosinense ze dvou různých prostředí
Authors
BARTÁK, Miloš (203 Czech Republic, guarantor, belonging to the institution), Eva PLÁTENÍKOVÁ (203 Czech Republic, belonging to the institution), Hebe CARRERAS (32 Argentina), Josef HÁJEK (203 Czech Republic, belonging to the institution), Jana MORKUSOVÁ (203 Czech Republic, belonging to the institution), Ana Carolina MATEOS (32 Argentina) and Michaela MAREČKOVÁ (203 Czech Republic, belonging to the institution)
Edition
Plant Biology, Germany, Wiley, 2018, 1435-8603
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10611 Plant sciences, botany
Country of publisher
Germany
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 2.393
RIV identification code
RIV/00216224:14310/18:00115003
Organization unit
Faculty of Science
UT WoS
000441249800002
Keywords (in Czech)
Absorbance; parametery fluorescence chlorofylu; lišejníky; UV spectra; UV-resistance
Keywords in English
Absorbance; chlorophyll parameters; lichens; UV spectra; UV-resistance
Tags
Tags
International impact, Reviewed
Změněno: 15/12/2020 10:58, Mgr. Marie Šípková, DiS.
V originále
Abstract We studied the resistance of Parmotrema austrosinense to UV-B stress. We focused on the effects of a high dose UV-B radiation on the content of chlorophylls, carotenoids and UV-B screening compounds. Photosynthetic parameters were measured by chlorophyll fluorescence (potential and effective quantum yields, photochemical and non-photochemical quenching) and evaluated in control and UV-B-treated lichens. Lichens from two different locations in Cordoba, Argentina, were selected: (i) high altitude and dry plots at (Los Gigantes) and (ii) lowland high salinity plots (Salinas Grandes). UV-B treatment led to a decrease in the content of photosynthetic pigments and UV-B screens (absorbance decrease in 220-350 nm) in the samples from Salinas Grandes, while in Los Gigantes samples, an increase in UV-B screen content was observed. Chlorophyll fluorescence parameters showed a UV-B-induced decline in FV /FM , Phi_PSII and qP indicating limitation of primary photosynthetic processes in photosystem II (PSII) of symbiotic alga, more pronounced in Salinas Grandes samples. Protective mechanism of PSII were activated by the UV-B treatment to a higher extent in samples from Salinas Grandes (NPQ 0.48) than in Los Gigantes samples (NPQ 0.26). We concluded that site-related characteristics, and in particular different UV-B radiation regimen, had a strong effect on resistance of the photosynthetic apparatus of P. austrosinense to UV-B radiation.
In Czech
Studovali jsme odolnost argentinského lišejníku z provincie Cordoba vůči stresu působenému UV-B zářením. Zaměřili jsme se na vliv vysokých dávek UV-B záření na obsah chlorofylu, karotenoidů and UV-B absorbujících látek. Fotosyntetické parametry lišejníku vystavenému UV-B stresu byly měřeny pomocí fluorescence chlorofylu.
Links
| EF16_013/0001708, research and development project |
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| LM2015078, research and development project |
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