Abstract
It was shown by analyzing CO2 exchange that air-dry thalli of lichens with green algae as phycobionts can be reactivated to attain net photosynthesis by supply with humid air alone or with liquid water, while dry thalli from lichens with cyanobacteria need liquid water. This is true in the latter group for gelatinous, homoiomerous species as well as for non-gelatinous, heteromerous. These different reactivation types are also found in species of one genus, if they contain green or blue green phycobionts.
The carbon isotope ratios (δ 13C values) of lichens are in accordance with this specific differences: They indicate higher diffusion resistance for CO2 in the thalli with blue green phycobionts which need liquid water for reactivation.
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© 1986 Martinus Nijhoff Publishers, Dordrecht
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Lange, O.L., Ziegler, H. (1986). Different Limiting Processes of Photosynthesis in Lichens. In: Marcelle, R., Clijsters, H., van Poucke, M. (eds) Biological Control of Photosynthesis. Advances in Agricultural Biotechnology, vol 19. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4384-1_14
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DOI: https://doi.org/10.1007/978-94-009-4384-1_14
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