Exercise 5-28 Micro Lab: Motility Test
Motility Test Medium
a semisolid medium designed to detect bacterial motility
in the MTM, what changes to the agar have been done?
the agar concentration has been reduced from 1.5% to 0.4%, enough to allow movement of motile bacteria
How is motility detected?
as diffuse growth radiating from the central stab line
a _____ is sometimes added to MTM to make detection easier
tetrazolium salt (TTC)
What is a positive detection for motility?
it is indicated when the red (reduced) TTC is seen radiating outward from the central stab
What is a negative result for motility?
it shows red only along the stab line
Motility is important in ________ bacteria