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 biochemical test performed on bacterial species to determine the ability of the organism to split indole from the amino acid tryptophan.
Staphylococcus aureus is negative for motility, and positive for the indole production. The SIM test tests for sulfur reduction, indole production and motility. Positive for i â¦ ndole production means tryptophan is broken down into indole and pyruvate and will give a red color.