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Uptake and Effect of Cations on Lichen Metabolism*

Published online by Cambridge University Press:  28 March 2007

D. H. Brown  and
R. P. Beckett
D. H. Brown
Affiliation:
Department of Botany, The University, Bristol BS8 1UG.
R. P. Beckett
Affiliation:
Department of Botany, The University, Bristol BS8 1UG.
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Abstract

Heavy metal uptake by lichens is briefly reviewed in terms of the trapping of paniculate material and the uptake of soluble cations. The kinetics of uptake to extracellular sites and intracellular carrier-mediated incorporation into cells are compared and the effects of competing cations and the energetics of the processes considered. The influence of heavy metals on lichen growth, morphology and physiology are reviewed emphasizing recent reports showing the greater sensitivity of cyanobacterial compared with chlorophycean lichens, the induction of heavy metal tolerance in the field and laboratory in Peltigera species, and alterations in intracellular cadmium uptake kinetics by some, but not all, tolerant Peltigera populations.

Type
Research Article
Information
The Lichenologist , Volume 16 , Issue 2 , June 1984 , pp. 173 - 188
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.