indole test

The ehrlich reagent is similar to a number of other indole tests:

It's also the main ingredient of Kovac's reagent, used for the bacterial diagnostic indole test.

Like many biochemical tests on bacteria, results of an indole test are indicated by a change in color following a reaction with an added reagent.

Opium, which tests positively with indole tests due to its tryptophan content.

It is used for the diagnostical indole test, to determine the ability of the organism to split indole from the amino acid tryptophan.

The two biotypes are distinguishable from an indole test: biovar 1 is indole positive whereas biovar 2 is indole negative.

These two can be distinguished by Indole test or Pyr test both of which should be clearly negative for Burkholderia cepacia and positive for E. meningoseptica.