Myricetin can produce frameshift mutations in the genomes of particular strains of "Salmonella typhimurium". Dichloroacetylene has mutagenic effects on "Salmonella typhimurium". By utilizing the Ames test in "Salmonella typhimurium" strains, DHB was determined to be nonmutagenic. The plasmid is a natural plasmid from "Salmonella typhimurium". Salmonella virus P22 is a bacteriophage in the "Podoviridae" family that infects "Salmonella typhimurium". This enzyme is known from "Escherichia coli" and "Salmonella typhimurium". It is primarily found in Gram-negative bacteria, such as "Escherichia coli" and "Salmonella typhimurium". In 1998 the first NCs were isolated from "Salmonella typhimurium". Species commonly investigated in the temperate zone include "Salmonella typhi" and "Salmonella Typhimurium". "Salmonella typhimurium" is a prokaryote, therefore it is not a perfect model for humans.