[Antagonistic activity of novel green microalgae strain].

Autor:	Selivanova EA, Ignatenko ME, Nemtseva NV
Jazyk:	ruština
Zdroj:	Zhurnal mikrobiologii, epidemiologii i immunobiologii [Zh Mikrobiol Epidemiol Immunobiol] 2014 Jul-Aug (4), pp. 72-6.
Abstrakt:	Aim: Screening of novel microalgae strains for the presence of pronounced antagonistic (antibacterial) activity against opportunistic bacteria. Materials and Methods: 11 pure cultures of green unicellular algae isolated from fresh and salt basins of Orenburg region were studied for the presence of antagonistic activity against 4 test-strains of opportunistic bacteria by a photometric method. The effect of water extracts of microalgae Astermonas gracilis on the speed of self-purification of brine from Escherichia coli as well as antibacterial activity of peloid were evaluated under co-cultivation conditions. Results: Pure cultures of green unicellular algae Scenedesmus obliquus (Turpin) Kütz, Scenedesmus magnus Meyen var. magnus, Pediastru duplex Meyen var. duplex, Chlorella vulgaris Bory, Monoraphidium arcuatum (Korschikov) Hindak (=Ankistrodesmus arcuatus Korschikov), Dictyosphaerium sp. had the most pronounced antagonistic activit against opportunistic bacteria. Water extract ofA. gracilis microalgae accelerated brine self-purification fro E. coli due to antibacterial effect. Peloid containing extracts of microorganism cells had a pronounced antibacterial effect against opportunistic bacteria. Conclusion: Antagonistic substances localized inside cells of microalgae increased the speed of allochthonic microorganism elimination that is one of the mechanisms of self-purification of a basin and antibacterial effect of peloid. The novel green microalgae strains studied due to the presence of pronounced antagonistic activity may have a wide practical application.
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu