How to measure fungal growth in a petri dish?

Open 1 Answers Fungi Kingdom

Having trouble deciding how I should measure fungal growth in my petri dishes properly for a class experiment as the growths are not perfect circles?

1 Answer

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  • It's difficult to estimate biomass when a fungus is growing in all dimensions on solid medium.
  • Growth of fungus colony is expressed as a radial diameter.
  • If we plot colony radius/ diameter vrs time, four stages are observed. That is; lag, exponential, stationary and decline.
  • Note: the exponential phase is always at the tip.

Measure at two angles( diameter) and take the mean.

answered by Carolina
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