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Biology LibreTexts

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

  • Page ID
    15962
  • 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

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    Figure 2.6.1: Bacterial growth in broths

    Growth Characteristics on Slants

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    Figure 2.6.2: Bacterial growth on slants

    Growth Characteristics on Plates

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    Figure 2.6.3: Bacterial growth on plates