Bacterial Colony Morphology Chart

Bacterial Colony Morphologies вђ Pathelective This page titled 8: bacterial colony morphology is shared under a cc by nc sa 4.0 license and was authored, remixed, and or curated by jackie reynolds. bacteria grow on solid media as colonies. a colony is defined as a visible mass of microorganisms all originating from a single mother cell, therefore a colony constitutes a clone of bacteria. Bacteria grow on solid media as colonies. a colony is defined as a visible mass of microorganisms originating from a single mother cell. key features of these bacterial colonies serve as important criteria for their identification. characteristics of bacterial colonies. colony morphology can sometimes be useful in bacterial identification.

Bacterial Colony Morphology Chart Since morphology is influenced by medium type and growth conditions, care should be taken to record these parameters. good determination of colony morphology is predicated on good streak technique because it requires good separation of colonies. smibert and krieg (5) proposed the following protocol: 1. measure the colony diameter in millimeters. 2. The "bump" on an umbonate colony is called an umbo. 4. margin. erose is synonymous with serrated. 5. surface. surface can be smooth, glistening, rough, wrinkled, dry, powdery, moist, mucoid (forming large moist sticky colonies, brittle, viscous (difficult to remove from loop), butyrous (buttery). 6. To study the colony morphology of different bacteria, we can expose the nutrient agar plate to varying environments like air, water and soil, etc. after overnight incubation, the growth of bacterial colonies in or on the nutrient agar plate occurs. first, look for the separate bacterial colonies and label them as 1, 2, 3 and so on. Colonies need to be well isolated from other colonies to observe the characteristic shape, size, color, surface appearance, and texture. another important characteristic of a bacterial colony is hemolysis. hemolysis is the result of the lysis of the blood cells that are a component of blood agar. colony morphology characteristics:.