Question: is m luteus gram positive?
Answer: Micrococcus luteus is a Gram-positive, to Gram-variable, nonmotile, coccus, tetrad-arranging, pigmented, saprotrophic bacterium that belongs to the family Micrococcaceae. It is urease and catalase positive. ... M. luteus is coagulase negative, bacitracin susceptible, and forms bright yellow colonies on nutrient agar.