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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Archives of microbiology 120 (1979), S. 87-91 
    ISSN: 1432-072X
    Keywords: Luminous bacteria ; Marine bacteria ; Induction ; Beneckea ; Photobacterium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract It has been previously demonstrated that luciferase synthesis in the luminous marine bacteria, Beneckea harveyi and Photobacterium fischeri is induced only when sufficient concentrations of metabolic products (autoinducers) of these bacteria accumulate in growth media. Thus, when cells are cultured in liquid medium there is a lag in luciferase synthesis. A quantitative bioassay for B. harveyi autoinducer was developed and it was shown that many marine bacteria produce a substance that mimics its action, but in different amounts, (20–130% of the activity produced by B. harveyi) depending on the species and strain. This is referred to as alloinduction. None of the bacteria tested produced detectable quantities of inducer for P. fischeri luciferase synthesis. These findings may have significance with respect to the ecology of B. harveyi and P. fischeri.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Archives of microbiology 115 (1977), S. 347-351 
    ISSN: 1432-072X
    Keywords: Bacterial bioluminescence ; Photobacterium leiognathi ; Induction ; Luciferase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In previous studies with luminous bacteria of all different species it has been reported that the synthesis of luciferase is autoinducible: during growth at low cell densities synthesis is effectively repressed while after induction, at higher cell densities, the rate of synthesis of enzyme is up to five times the growth rate. In this paper we report on newly isolated strains of Photobacterium leiognathi which show continued luciferase synthesis irrespective of the cell density. The specific synthesis rate may nevertheless differ from the rate of growth and depends on the luciferase content of the inoculated cells. A ratio of 1 was established for cells having a maximum luciferase content varying to a ratio of about 2 for cells that contained only 1% of the maximum.
    Type of Medium: Electronic Resource
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