Photoprotective mechanisms in foliose lichens have sufficient capacity to cope with a short-term high light stress

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Authors	BARTÁK Miloš VRÁBLÍKOVÁ Hana VÁCZI Peter HÁJEK Josef ŠTEPIGOVÁ Jana ILÍK Petr
Year of publication	2005
Type	Article in Proceedings
Conference	XVII International Botanical Congress - Abstracts
MU Faculty or unit	Faculty of Science
Citation
Web	XVIIth International Botanical Congress
Field	Botany
Keywords	botany lichens photoinhibition glutatahione zeaxanthin photosystem
Description	Several photoprotective mechanisms were measured on foliose lichens Lasallia pustulata and Umbilicaria antarctica: alteration in PS II functioning (fast chlorophyll fluorescence transient), formation of zeaxanthin, and changes in amount and redox state of glutathione as related to a short-term high light stress. The high light-induced photoinhibition was sensed by a set of chlorophyll fluorescence parameters (Fv/Fm, Yield PS II, and NPQ).
Related projects:	Ecology of the coastal vegetation Photoinhibition and photoprotection in lichens under extreme conditions