Department of Botany, University of Exeter.
XI. THE ROLE OF THE ALGA IN DETERMINING THE PATTERN OF CARBOHYDRATE MOVEMENT BETWEEN LICHEN SYMBIONTS
Article first published online: 2 MAY 2006
Volume 67, Issue 3, pages 469–486, July 1968
How to Cite
RICHARDSON, D. H. S., HILL, D. J. and SMITH, D. C. (1968), LICHEN PHYSIOLOGY. New Phytologist, 67: 469–486. doi: 10.1111/j.1469-8137.1968.tb05476.x
- Issue published online: 2 MAY 2006
- Article first published online: 2 MAY 2006
- (Received 20 December 1967)
The identity of the carbohydrate moving between the symbionts of a lichen depends on the genus of alga present. Twenty-seven lichen species, involving eight different genera of algae, have been examined. In lichens containing five genera of Chlorophyceae, carbohydrates move to the fungus as polyols (ribitol in Trebouxia, Myrmecia and Coccomyxa; erythritol in Trentepohlia; and sorbitol in Hyalococcus). In lichens containing three genera of Cyanophyceae (Nostoc, Calothrix and Scytonema) glucose was the carbohydrate moving, although there is a possibility that in the one lichen with Calothrix which was investigated, it may have been a glucan.