Table 1.

Bacterial strains and plasmids used in this study.

Strains	Characteristics	Source
E. coli XL-1 Blue	Cloning strain	Real Biotech Corporation
E. coli 43R	Mutant of E. coli RR1 strain	Miyamoto.et al. (1987) J. Bacteriol. [16]
Plasmids	Characteristics	Source
pRFN4	Recombinant plasmid containing the riboflavin genes from Bacillus subtilis	Illarionov et al. (2004) J. Org. Chem. [13]
pT7-5 PpEE	Recombinant pT7-5 plasmid containing the luxL and luxC genes, as well as their intergenic DNA from P. phosphoreum NCBM 844	Woo et al. (2005) Kor. J. Microbiol. [14]
pRFN4- Pp N-lumP	pRFN4 plasmid inserting the gene of 5′-terminal half of luxL for N-LumP from P. phosphoreum	This study
pRFN4- Pp luxCP	pRFN4 plasmid inserting the promoter region for luxC from P. phosphoreum	This study
pRFN4- Pp luxCP-N-lumP	pRFN4-Pp N-lumP plasmid inserting the promoter region for luxC from P. phosphoreum	This study
pRFN4- Pp luxLP-N-lumP	pRFN4-Pp N-lumP plasmid inserting the DNA for promoter region for luxL from P. phosphoreum	This study