Question

Difference between shigella and salmonella in macconkey agar

Answer 1

Please find the answer below:

(i) Shigella are colourful on a macconkey agar.

(ii) Salmonella are colourless on a macconkey agar.

Shigella and Salmonella are non-lactose fermenting bacteria that cannot utilize lactose and use peptone instead

Answer 2

1. Mobility-Shigella is non-molite whereas SAlmonella is motile.

2. Shape- Shigella is splender and Salmonella is rod shaped.

3. Media- is Hektoen agar. Colonies appear green in Shigella and black in Salmonella.

4.Affect- Salmonella affects small and large intestine whereas Shigella affects colon.

5. Incubation Period- In Shigella its 1-2 days and in Salmonella is 6-72 hours.