This type of medium is both selective ... areas of high salt concentration (plate on the left in the picture below). This is in contrast to Streptococcus species, whose growth is selected against by ...

This allows for the creation of a pure culture, a culture of bacteria containing only one type of microorganism ... volume of the final dilution is spread on the surface of an agar plate. 2. Pour ...

But when the students go home, Grosser gets out her agar plates and brightly-colored bacteria collection to make literature-based agar art. Posting on Instagram as @thebookishbacteriologist, Grosser ...