Can bacillus subtilis grow on mac conkey agar.
MacConkey agar is used as a culture medium.It is designed to separate Gram-negative and enteric from each other.Nonfermenters don't change color when Lactose fermenters turn red or pink.The media prevents the growth of Gram-positive organisms with crystal violet and bile salts.The media has a neutral red indicator.[3]
bile salts, crystal violet dye, and neutral red dye are used to make it.
There are many variations of MacConkey agar.There is no need for the spreading or swarming of Proteus species.Crystal violet at a concentration of 0.0001% can be used to check for Gram-positivebacteria.MacConkey is used to isolated E. coli O157.There is a citation needed.
Alfred Theodore MacConkey worked for the Royal Commission on Sewage Disposal and developed the medium.
The agar distinguishes those Gram-negativebacteria that can ferment the sugar Lac+) from those that cannot by using a neutral red pH indicator.
This medium is also known as an "indicator medium".The Proteus species is affected by the presence of bile salts.