Collection of the living cultures of cyanobacteria, algae and algal parasites (CALU) maintained at the Saint-Petersburg State University is one of the largest in Russia, while its division containing photosynthetic microorganisms is one of the largest in the world. This is highly valuable preserved genetic collection of the microorganisms from different areas of the Earth. The collection is used in a broad range of fundamental and applied research in microbiology, as well as with educational purposes.

1

Culture collection of the heterotrophic amoeboid protists was founded more than 25 years ago at the Department of Invertebrate Zoology, Faculty of Biology and Soil Science SPSU. It currently contains about 400 strains of various amoeboid protozoa, heliozoans and heterotrophic flagellates.

1

The collection of the Resource Centre “Culture Collection of Microorganisms” currently includes about 300 clones of the heterotrophic protists of different taxonomic affinities. The majority of microbial eukaryotes maintained in the collection are ciliates, including more than 250 clones of 10 Paramecium species isolated from more than 50 natural populations. Eight preserved Paramecium species contain 15 species of the symbiotic pro- and eukaryotic microorganisms located in various compartments of their host cells. The clones were isolated from various freshwater and brackish habitats in various locations of Europe and Asia. The size of collection is constantly increasing due to continuous sampling and isolation of new clones performed by the resource centre staff.

1