Algologia 2011, 21(1): 36–51
Ecology, Cenology, Conservation of Algae and Their Role in Nature
Picoplankton Cyanoprokaryota of genera Synechococcus Nägeli and Cyanobium Rippka et Cohen-Baz. from Lake Baikal (Russia)
Belykh O.I.1, Tikhonova I.V.1, Sorokovikova E.G.1, Sherbakova T.A.1, Kureishevich A.V.2- 1Limnological Institute of Siberian Branch of Russian Academy of Sciences,
- 3, Ulan-Batorskaya St., 664033 Irkutsk, Russia
- 2Institute of Hydrobiology, National Academy of Sciences of Ukraine
- 12, Prosp. Geroev Stalingrada St., 04210 Kiev, Ukraine
Abstract
Morphology and ultrastructure of two strains of picoplanktonic Cyanoprokaryota (Cyanophyta, Cyanobacteria) isolated from the littoral and deepwater areas of Lake Baikal were studied with epifluorescence and electron microscopy. Nucleotide sequences of 16S rRNA genes of these strains were analyzed. Peculiar features of strains’ growth under different environmental conditions were revealed. As a result, isolated picocyanoprokaryota were referred to genera Synechococcus Nägeli and Cyanobium Rippka et Cohen-Baz. The latter have not been recorded in Lake Baikal.
Keywords: picoplanktonic Cyanoprokaryota, Lake Baikal, 16S rRNA, electron microscopy
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