skills 12 Flashcards
1
Q
Indole, Methyl Red, Voges-Proskauer, Citrate (IMViC) test
{purpose}
A
- block of tests done together
- investigates aspects of bacterial metabolism
- important in analysis of water (checks for presence of Escherichia ➡ fecal contamination / likelihood of pathogens)
2
Q
Indole test of IMViC
{purpose}
A
- detect formation of indole
- differentiate members of family of Enterobacteriaceae (especially E. coli from Enterobacter & Klebsiella)
3
Q
Indole test (of IMViC) test results
A
- positive= layer of Kovac’s reagent will almost immediately turn red (rosindole)
- negative= green; green if reagent gets mixed up (failed test)
4
Q
Indole test (of IMViC) test products
A
indole, pyruvic acid & ammonia
