The physiological and emission characteristics of new symbiotic luminous bacteria isolated from the fishes in the White, Bering and Okhotsk seas have been studied. It was found that all isolated strains, regardless of the mode of existence and habitals, belong to the group of psychrophilic photobacteria Photobacterium phosphoreum. All strains are distinguished by highly stable bioluminescence during submerged cultivation in the temperature range of 4-20 ° C. The most important factors determining the emission activity and luminescence stability of intact photobacteria cells have been identified. It has been shown that the most critical factor for luminescence is the temperature value of bacterial cultivation and incubation.
photobacteria, bioluminescence, Photobacterium phosphoreum
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