Colony Count, Microbial
(Agar Dilution Count; Bacterial Count; Colony-Forming Units Assay, Microbial; Fungal Count; Pour Plate Count; Spore Count; Spread Plate Count; Streak Plate Count)

Enumeration by direct count of viable, isolated bacterial, archaeal, or fungal cells or spores capable of growth on solid culture media. Each colony (i.e., microbial colony-forming unit) represents the progeny of a single cell in the original inoculum. The method is used routinely by environmental microbiologists for quantifying organisms in air; food; and water; by clinicians for measuring patients' microbial load; and in antimicrobial drug testing.


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<b>Colony Count</b>, <b>Microbial</b>
Colony Count, Microbial

<b>bacterial colony counting</b>
bacterial colony counting

<b>Bacterial counts</b> at 18 h after
Bacterial counts at 18 h after

<b>Colony counting</b> for the
Colony counting for the

<b>Colony counting</b> technique
Colony counting technique

<b>Count</b> all <b>colonies</b> (note that
Count all colonies (note that

both total <b>colony counts</b>
both total colony counts

<b>Colony count</b> diagram
Colony count diagram

Diagnosis and therapies



Fast   Hierarchical


PetrifilmColony pickerAlgebraic enumerationPlate count agarEnumerations of specific permutation classesManso II of AmalfiDemerara-EssequiboSarkar ColonyOld Colony Cove SiteColony 7

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Last update: April 2009