Project information
Primary production and growth of the lichen symbiotic algae of the genus Trebouxia: The effect of temperature, light and heavy metals
- Project Identification
- GP206/07/P394
- Project Period
- 1/2007 - 12/2009
- Investor / Pogramme / Project type
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Czech Science Foundation
- Postdoctoral projects
- MU Faculty or unit
- Faculty of Science
- Keywords
- photobiont, cultivation, crossed gradients, chlorophyll a fluorescence, lichens, stress
The aim of the proposed project is to characterize interspecific physiological differences in selected lichen photobionts (Trebouxia genus) with different type of chloroplast morphology. Within the experiments, techniques of cultivation of algae in crossed gradients of temperature and light will be used. A growth and production of algal colonies will be analyzed periodically within the experiments by an analysis of photogrammetrical images, determination of chlorophylls and carotenoids contents and by a weighing of algal colonies. The aim is to assess the effects of limiting conditions of temperature, light and presence of heavy metals. The effect of these factors on primary photochemical processes in photosystem II will be studies by the parameters of chlorophyll fluorescence in vivo. The results of the project will contribute to clarify physiological response of lichen photobionts to optimal and limiting conditions of temperature, light and heavy metals. Analysis of physiological processes at the cellular level of Trebouxia photobiont culture will elucidate the effect of proportion of individual reproductive stages within a lichen thalus on heterogeneity of photosynthetic production.
Publications
Total number of publications: 4
2014
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Lichen Photosynthesis. Scaling from the Cellular to the Organism Level
The Structural Basis of Biological Energy Generation. Advances in Photosynthesis and Respiration, year: 2014, number of pages: 22 s.
2010
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Vliv teploty a ozářenosti na fotosyntetické procesy řas rodu Trebouxia pri kultivaci v tekutém médiu
Year: 2010, type: Conference abstract
2007
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Photobiont involvement in lichen sensitivity or tolerance to heavy metals
Bulletin České společnosti experimentální biologie rostlin a Fyziologické sekce Slovenské botanické společnosti. Konference experimentální biologie rostlin: 11. dny fyziologie rostlin, year: 2007
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Primary photosynthetic processes of lichen phycobiont Trebouxia erici affected by heavy metal and heat stress
Abstract book - AquaFluo: Chlorophyll fluorescence in aquatic science meeting, year: 2007