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Seasonal Photosynthetic Capacity Changes in Lichens: A Provisional Mechanistic Interpretation*

Published online by Cambridge University Press:  28 March 2007

K. A. Kershaw
Affiliation:
Department of Biology, McMaster University, Hamilton, Ontario, LA 4K1, Canada.

Abstract

The photosynthetic capacity changes that have previously been documented in lichens are reviewed together with the mechanisms of photosynthetic capacity change in free-living algae recently proposed by Prezelin and co-workers. Examination of seasonal capacity changes in Peltigera praetextata, P. rufescens, Cladonia rangiferina, C. stellaris, and Caloplaca trachyphylla using photosynthetic-illumination curves, provisionally establishes that synthesis of additional photosynthetic units, seasonal interruption of energy transduction, as well as enzymatic rate changes in the Calvin cycle, are all involved in these capacity changes.

Type
Research Article
Copyright
Copyright © British Lichen Society 1984

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Footnotes

*

Paper presented at the symposium ‘Symbiosis in Lichens’ (convener Margalith Galun) at the Third International Mycological Congress, Tokyo, 1 September 1983.

References

* Paper presented at the symposium ‘Symbiosis in Lichens’ (convener Margalith Galun) at the Third International Mycological Congress, Tokyo, 1 September 1983.