Definition of Growth in Fungi

  • Growth may be defined as an irreversible increase in the volume of an organism, usually accompanied by an increase in biomass.
  • Mycelial fungi exhibit extension growth of hyphae, accompanied by an increase in biomass.
  • Unicellular fungi (e.g. yeasts) may exhibit an increase in individual cell volume, accompanied by an increase in biomass.
  • But collectively, the number of yeast cells within a culture (i.e. cell concentration) may also increase, resulting in an increase in biomass of the culture as a whole.

Fungi may be cultured on SOLID or in LIQUID MEDIA:

  • YEASTS are often cultured in LIQUID media
  • MYCELIAL SPECIES may be cultured in LIQUID or on SOLID growth media.

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