Lab 29: IMViC Series - Indole Test

Question 1

what were IMViC series designed to do?

Answer 1

help differentiate genera and species of family Enterobacteriaceae
stands for:
Indole
Methyl Red
Voges-Proskauer
Citrate utilization

Question 2

the indole test determines?

Answer 2

the ability to ferment tryptophan to end products indole. ammonia, and pyruvic acid

Question 3

what is tryptone broth
what is added after incubation?

Answer 3

rich in tryptophan
Kovacs solution

Question 4

results

Answer 4

top layer of broth red = pos indole
top layer of yellow/brown = neg indole