English literature - Student Encyclopedia (Ages 11 and up) The writers of the British Isles, including England, Scotland, and Wales, have produced a great wealth of literature. The language in which English literature is written has evolved over hundreds of years and is still changing.
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.
As some bacteria digest tryptophan, one product sometimes produced is indole, a compound responsible for the smell of feces. Tryptone broth is frequently used for the indole test, important for identifying enteric bacteria.acteria are identified based largely on what organic compounds they can break down. The range of compounds used depends on the collection of enzymes a species of bacteria can make. Tryptophan is an amino acid that some bacteria can use for carbon and energy.