Skip to main content
Biology LibreTexts

2.5: Examples of Bacterial Growth Characteristics in Broths, Slants and Plates

  • Page ID
  • Even on general purpose growth media, bacteria can exhibit characteristic patterns of growth. Some examples are shown below. While these growth patterns are an important piece of information when identifying a bacterial species, they are not sufficient for a positive identification. Staining procedures and metabolic tests must be used for a definitive identification.

    Growth Characteristics in Broths

    growth in broths.png

    Figure 2.6.1: Bacterial growth in broths

    Growth Characteristics on Slants

    growth on slants.png

    Figure 2.6.2: Bacterial growth on slants

    Growth Characteristics on Plates

    growth on plates.png

    Figure 2.6.3: Bacterial growth on plates