Bacterial colonies are often wet, sticky, slippery, transparent, easy to pick, and uniform in texture. The color of the front and rear sides or edges of the colonies is the same as that of the central part.
Morphological characteristics of yeast colonies: large and thick, round, smooth and moist, sticky and monotonous in color. Common white, khaki and red.
Adhesion: The colonies of mold are large, loose, dry and opaque, most of which are fluffy, flocculent or reticulate, and bacteria can spread and grow along the surface of the culture medium. Because different fungal spores contain different pigments, colonies can be red, yellow, green, turquoise, blue-gray, black, white and gray. (belonging to fungi)