Heterogeneity of chlorophyll fluorescence over thalli of several foliose macrolichens exposed to adverse environmental factors: Interspecific differences as related to thallus hydration and high irradiance.

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Authors	BARTÁK Miloš HÁJEK Josef GLOSER Jan
Year of publication	2000
Type	Article in Periodical
Magazine / Source	Photosynthetica
MU Faculty or unit	Faculty of Science
Citation
Field	Botany
Keywords	chlorophyll fluorescence imaging; desiccation; high light; Hypogymnia physodes; Lasallia pustulata; Umbilicaria hirsuta; lichen; photosynthetic parameter
Description	Spatial heterogeneity of variable chlorophyll fluorescence over thalli of Hypogymnia physodes, Lasallia pustulata, and Umbilicaria hirsuta were studied using chlorophyll fluorescence imagig technique. Distribution of maximum (Fp) fluorescence was species-specific: maximal values were found at thallus margins (H. physodes), center (L. pustulata), and irregular patches (U. hirsuta. Fp decreased with thallus dehydration.
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