<P> MacConkey agar is an indicator , a selective and differential culture medium for bacteria designed to selectively isolate Gram - negative and enteric ( normally found in the intestinal tract ) bacilli and differentiate them based on lactose fermentation . The crystal violet and bile salts inhibit the growth of gram - positive organisms which allows for the selection and isolation of gram - negative bacteria . Enteric bacteria that have the ability to ferment lactose can be detected using the carbohydrate lactose , and the pH indicator neutral red . </P>
<P> MacConkey agar is an indicator , a selective and differential culture medium for bacteria designed to selectively isolate Gram - negative and enteric ( normally found in the intestinal tract ) bacilli and differentiate them based on lactose fermentation . The crystal violet and bile salts inhibit the growth of gram - positive organisms which allows for the selection and isolation of gram - negative bacteria . Enteric bacteria that have the ability to ferment lactose can be detected using the carbohydrate lactose , and the pH indicator neutral red . </P>
what types of organisms will grow on macconkey agar
what types of organisms will grow on macconkey agar
Gram - negative and enteric ( normally found in the intestinal tract ) bacilli
Gram - negative and enteric ( normally found in the intestinal tract ) bacilli