FIG 5.

Strain specificity of the histamine-producing capacity of T. halophilus. (A) Histamine production of T. halophilus in simulated soy sauce fermentation; control, no microorganism inoculated. (B) The amplification of the genes, parts of histamine-biosynthesis gene cluster, by using histamine-producing or non-histamine-producing T. halophilus strain genomes as the templates. PCR products have been verified by gene sequencing, but the data were not shown. (C) Genome map of histamine-biosynthesis gene cluster in histamine-producing T. halophilus strain.