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J Bacteriol. 1977 August; 131(2): 519-525

Mutants of luminous bacteria with an altered control of luciferase synthesis.

ABSTRACT

Arginine is known to increase the luminescence in vivo and in vitro of the marine bacterium Beneckea harveyi growing in minimal medium. Mutants in which this arginine effect is either diminished, or absent were isolated as bright clones on a minimal medium after N-methyl-N'-nitro-N-nitrosoguanidine mutagenesis. On a minimal medium both with and without added arginine and also on complex medium, these "minimal bright" mutants produce higher levels of luminescence than the wild type both in vivo and in vitro. This is attributed to the production of an increased amount of luciferase, which itself is wild type in terms of its specific activity.