St. Petersburg Culture Collection (CALU): Four decades of storage and research with microscopic algae, cyanobacteria and other microorganisms
The CALU Culture Collection of microscopic algae and other microorganisms has celebrated its 45 th year of continuous operation in 2003. Although it was originally designed to supply live material for aims of biotechnology in the former USSR, it gradually focused itself on isolation, preservation, classification, and polyphasic research with microscopic algae and their microbial partners. Today CALU is among the largest (794 culturable strains) specialized public service collections; it represents all central aspects of biodiversity except for the archaea – viruses, bacteria, algae, protists, and fungi. Some parasites of algae are uniquely deposited in this collection. The basis of CALU is freshwater eukaryotic algae (400 strains from 49 genera) and cyanobacteria (287 strains from 29 genera) – a replica of the Eurasian domain of these microorganisms. The rest is non-photosynthetic bacteria (61 strains from 4 genera), aphelid protists (12 strains from 2 genera), fungi (19 strains from 5 genera), bacteriophages, and viruses of eukaryotes (15 strains from 2 groups). Live material is maintained as axenic, bacteria-free, and unialgal cultures either in liquid media or on agar slants. Except for thermophiles, microbial strains are stored at 12°C, continuously or periodically illuminated with ca. 7 μE m -2 s -1 of cool white light, and reinoculated in 2-3 months. Native research with selected strains of CALU deals with cytology, genetics, molecular biology, biochemistry, physiology, ecology, and taxonomy. All cultures are accessible for free distribution by the official transportation routes.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
Document Type: Research Article
Publication date: August 1, 2004
More about this publication?
- Nova Hedwigia is an international journal publishing original, peer-reviewed papers on current issues of taxonomy, morphology, ultrastructure and ecology of all groups of cryptogamic plants, including cyanophytes/cyanobacteria and fungi. The half-tone plates in Nova Hedwigia are known for their high quality, which makes them especially suitable for the reproduction of photomicrographs and scanning and transmission electron micrographs.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Ingenta Connect is not responsible for the content or availability of external websites