The importance of extremophile cyanobacteria in the production of biologically active compounds
2007
Drobac-Cik, A.V., Faculty of Sciences, Novi Sad (Serbia). Department of Biology and Ecology | Dulic, T.I., Faculty of Sciences, Novi Sad (Serbia). Department of Biology and Ecology | Stojanovic, D.B., Faculty of Sciences, Novi Sad (Serbia). Department of Biology and Ecology | Svircev, Z.B., Faculty of Sciences, Novi Sad (Serbia). Department of Biology and Ecology
The antibacterial and antifungal activities of methanol extracts of 21 cyanobacterial strains belonging to Anabaena and Nostoc genera, previously isolated from different soil types and water resources in Serbia, were evaluated. In general, larger number of cyanobacterial strains showed antifungal activity. In contrast to Nostoc, Anabaena strains showed greater diversity of antibacterial activity. Larger number of targeted fungi was sensitive to cultural liquid extract (CL), while crude cell extract (CE) affected more bacterial strains. According to this investigation, the higher biological activity of terrestrial strains as representatives of extremophiles may present them as significant BAC producers. This kind of investigation creates very general view of cyanobacterial possibility to produce biologically active compounds but it points out the necessity of exploring terrestrial cyanobacterial extremophiles as potentially excellent sources of these substances and reveals the most prospective strains for further investigations.
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