What are some characteristics of different colonies that can be helpful in identifcation of species
Colony morphology is a way scientists can identify bacteria. There are a few basic characteristics of colony morphology that are typically evaluated.
- What is the basic shape of the colony? For example, circular, filamentous, etc.
- What is the cross-sectional shape of the colony? To see this, turn the Petri dish on end.
- What is the magnified shape of the edge of the colony?
- How does the surface of the colony appear? For example, smooth, glistening, rough, dull (opposite of glistening), rugose (wrinkled), etc.
- 5. Opacity - Is the colony transparent (clear),
- opaque, translucent (almost clear, but distorted vision, like looking through frosted glass), iridescent (changing colors in reflected light),
6. Chromogenesis (pigmentation)
- For example, white, buff, red, purple, etc