what does indole test for
The indole test is a component of the IMViC series of tests, which is used for differentiating the Enterobacteriaceae. The motility test is useful for testing a wide variety of organisms. As a whole, the SIM test is primarily useful for differentiating Salmonella and Shigella.
The indole test is a biochemical test performed on bacterial species to determine the ability of the organism to split indole from the amino acid tryptophan.