List the Bergeys Manual group number and Bergeys characteris

List the Bergey’s Manual group number and Bergey’s characteristics of Enterobacteiaceae.

What are the IMViC battery of differential tests?

Solution

a. Bergey\'s manual is mainly used in the identification of prokaryotic organisms. Most of the unknown prokaryotes fall in groups which are listed as follows:

1. The gram -ve aerobic/microaerophilic cocci and rods fall in group 4.

2. The faculatative gram -ve rods come under group 5.

3. The gram +ve cocci fall in group 17.

4. Endospore forming gram +ve cocci as well as rods fall under group 18.

5. Nonsporing regular gram +ve rods come under group 19.

6. Nonsporing irregular gram +ve rods come under group 20.

7. The last most common group is group 21 which contains all the aerobic, nonsporing, nonmotile, acid-fast, weakly gram +ve rods.

b. The IMViC of differential tests is an acronym for each of the tests.

I stands for indole test.

M stands for Methyl red test.

V stands for Voges-Proskauer test.

and, C stands for citrate test.