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Name: Steve G.
Status: Other
Age: 20s
Location: N/A
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Date: N/A 


Question:
When observing and comparing bacterial growth with fungal growth which have been cultured in a petri dish, in general, in what ways do they differ?



Replies:
You cannot always tell just by looking. Many bacteria and fungal cells will form nice small colonies with smooth round edges. Some fungal cells, for example, molds, will form colonies that are "hairy", just like the mold you see on old bread. Of course, there are filamentous bacteria too, but if I were betting the odds, I would bet a fuzzy colony was fungal. Of course, if you have access to a microscope, the bacteria cells will not have a nucleus, and the fungal cell will.

Paul Mahoney, Ph.D.


Most bacteria produce round (though sometimes flat, wet-like) colonies, whereas fungi produce colonies of irregular shape, often star-like or 'hairy'. This is a rough way of distinguishing the two.

Trudy Wassenaar



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