Which bacterium shows a characteristic metallic green sheen when grown on eosin-methylene blue (EMB) agar?

Question

Quizplus · Accepted Answer

Escherichia coli shows a metallic green sheen when grown on eosin-methylene blue (EMB) agar. This is due to the presence of a surface protein called Colicin V, which causes the metallic green color. Salmonella enterica may also grow on EMB agar, but it does not produce a metallic sheen. Staphylococcus aureus and Streptococcus pyogenes do not grow on EMB agar.

Which Bacterium Shows a Characteristic Metallic Green Sheen When Grown