The software module for the ProtoCOL 3 colony counter means it can identify microbes and count colonies cultured on CHROMagar plates. It was developed with media manufacturer CHROMagar and can ...
Shigella colonies on a chromagar plate culture medium are teal, while E. coli colonies are pink. This photograph from the Harborview Medical Center Microbiology Lab in Seattle was taken Jan. 30, 2023.