RT Journal Article
SR Electronic
A1 Hrouzek, Pavel
A1 Šoun, Jaroslav
T1 Some finds of subaerophytic cyanobacteria on wetted walls of La Palma (Canary Islands)
JF Czech Phycology
YR 2004
VO 4
IS 1
SP 155
OP 162
UL https://fottea.czechphycology.cz/artkey/fot-200401-0014.php
AB 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.