Czech Phycology 4: 155-162, 2004

Some finds of subaerophytic cyanobacteria on wetted walls of La Palma (Canary Islands)

Nálezy subaerofytních sinic na smáčených stěnách ostrova La Palma (Kanárské ostrovy)

Pavel Hrouzek1,2, Jaroslav ©oun1
1 University of South Bohemia, Faculty of Biological Sciences, Department of Botany, Braniąovská 31, CZ-370 05 České Budějovice
2 Institute of Soil Biology, Academy of Sciences of the Czech Republic,Na Sádkách 7, CZ-370 05 České Budějovice

Randomly selected samples of cyanobacterial mats growing on wetted walls of two distinct localities (Barranco de las Augustias, and Los Tilos) in La Palma (the Canary Islands) were collected. The collected samples contained twelve cyanobacteria morphotypes (determined according traditional system). Populations of both localities were dominated by coccoid cyanobacteria (Aphanothece pallida and Aphanothece cf. saxicola) and in some sampling sites by filamentous cyanobacteria Nostoc spp. and Leptolyngbya spp. In spite of the fact that the Canary Islands are characterized by a high level of species endemism mainly in terrestrial plants, most of the isolated cyanobacteria are considered to be cosmopolitan or widespread. But also some unknown morphotypes, e.g. Calothrix sp., were found to be common. Morphological changes in Calothrix were studied using light microscope and remarkable morphological changes in the type of branching and filament morphology were found.

Published: March 1, 2004  Show citation

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Hrouzek, P., & ©oun, J. (2004). Some finds of subaerophytic cyanobacteria on wetted walls of La Palma (Canary Islands). Czech Phycology, 4(1), 155-162
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