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Luminous bacteria culture collection IBSO: Natural biodiversity and applied aspects Josef I. Gitelson*; GA Vydryakova; EK Rodicheva; AM Kuznetsov; SE Medvedeva Institute of Biophysics SB RAS, Akademgorodok, Krasnoyarsk, 660036, Russia      *(root@gitelson.ibp.krasnoyarsk.su) The luminous bacteria are occurred regularly in waters of all studied regions of the World Ocean from tropical to polar latitudes and from the surface water layers to the depth of several thousand meters. The Culture Collection of the Institute of Biophysics (CC IBSO) contains about 700 strains of marine luminous bacteria (mesophylls and psychrophiles, free-living and associated with various marine inhabitants), 8 typical strains, Escherichia coli strains with lux-gene, dim and dark variants of luminescent forms. The vertical stratification and regularity of distribution of luminous bacteria in seawaters and in association with marine organisms are considered. The species composition of luminous bacteria from photophores is the same as from gastroenteric tracts in studied organisms. The microflora of some marine organisms contains simultaneously several species: P.phosphoreum and V.harveyi, or P.leiognathi and V.harveyi. Bacteria of Vibrio genera accumulate unluminous forms more quickly than Photobacterium during dissociation. The fields of luminous bacteria application in ecology, medicine (bioluminescent biotests) and biotechnology (perspective producers of many enzymes and biologically active substances) are discussed. [Poster: gitelson.josefi.32861]

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