A sample of a microbe collected on Penn State’s University Park campus grows on an agar plate. Microbes are the foundation of our agricultural, environmental and human ecosystems, and they flow ...

Because it takes two days for the color to appear on the agar plates, the participants had to be very aware of where they were painting each color on the dishes. Unfortunately, after two days ...

This is in contrast to Streptococcus species, whose growth is selected against by this high salt agar (plate on the right in the picture below). The differential ingredient in MSA is the sugar ...

This is in contrast to Streptococcus species, whose growth is selected against by this high salt agar (plate on the right in the picture below). The differential ingredient in MSA is the sugar ...

Pour the sterile agar plates and allow to set fully. Reason - this provides the selected bacterium with all the nutrients needed to grow. Reason - this allows the bacteria to spread out and to ...