CYANOBACTERIA AND ALGAE IN AN OLD MINE ADIT (MARCINKOW, SUDETY MOUNTAINS, SOUTHWESTERN POLAND)

摘要

In the interior of an old mine adit in Marcinkow, southwestern Poland, during spring, 35 species of phototrophic microorganisms were found on the graphite schists in a corridor 110 m from the entrance to the adit. There were no visible life forms, but wall patches that were brownish, yellowish, grayish, or reddish surrounded by colorless mucilaginous sheaths were found. Cyanobacteria and algae were only observed in the lab cultures after three months of incubation. We identified 22 species of cyanobacteria, 12 species of green algae, and 1 xanthophyte. Extremely low species diversity of phototrophs in the old mine adit is caused by no light, high humidity, and chemical, substrate composition.