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@article{1511756,
author = {Cempírková, Hana and Večeřová, Kristýna},
article_location = {Brno},
article_number = {2},
doi = {http://dx.doi.org/10.5817/CPR2018-2-17},
keywords = {Antioxidants;Excess light stress;Photoprotection;Zeaxanthin},
language = {eng},
issn = {1805-0689},
journal = {Czech polar reports},
title = {Pigment composition, glutathione and tocopherols in green algal and cyanobacterial lichens and their response to different light treatments},
volume = {8},
year = {2018}
}
TY - JOUR
ID - 1511756
AU - Cempírková, Hana - Večeřová, Kristýna
PY - 2018
TI - Pigment composition, glutathione and tocopherols in green algal and cyanobacterial lichens and their response to different light treatments
JF - Czech polar reports
VL - 8
IS - 2
SP - 208-217
EP - 208-217
PB - Masaryk University
SN - 18050689
KW - Antioxidants;Excess light stress;Photoprotection;Zeaxanthin
N2 - This study investigated photosynthetic pigments chlorophyll a and b, carotenoids (including xanthophyll cycle pigments) and antioxidants glutathione and tocopherols contents in chloro- (Lobaria pulmonaria, Lasallia pustulata) and cyanolichens (Lobaria scrobiculata, Peltigera canina) from different habitats and of different geographical origin. Lichen thalli were treated with various levels of irradiance (from 100 to 1500 umol m-2 s-1 ) for various time periods (from 20 min. to 5 h). The extent of increase of zeaxanthin content after different light treatments differed among chlorolichens, clearly distinguishing the species from light and shade habitats. Irrespective of light treatment, b-carotene content was always higher in cyanobacterial species than in green algal species. Highest canthaxanthin concentration, as well as b-carotene concentration, was found in L. scrobiculata from shade habitat. The content of total glutathione was the same in the same species from different collection sites. On the contrary, contents of a-tocopherol differed in the same species from different collection sites.
ER -
CEMPÍRKOVÁ, Hana and Kristýna VEČEŘOVÁ. Pigment composition, glutathione and tocopherols in green algal and cyanobacterial lichens and their response to different light treatments. \textit{Czech polar reports}. Brno: Masaryk University, 2018, vol.~8, No~2, p.~208-217. ISSN~1805-0689. Available from: https://dx.doi.org/10.5817/CPR2018-2-17.
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