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Colony-forming unit



A measure of viable cells in which a colony represents an aggregate of cells derived from a single progenitor cell.


CFU is used to determine the number of viable bacterial cells in a sample per mL. Hence, it tells the degree of contamination in samples of water, vegetables, soil or fruits, or the magnitude of the infection in humans and animals.

It is different from the direct microscopic counts that include both dead and living cells.

Acronym: CFU.

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Aerobic Colony COunt Units

... colonies (ACC) Is the result in CFU/ml or CFU/g? Are they both the same for this case? If it is not CFU/g, how can I get the answer in this unit?? Thank you in advance!

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by kady123
Thu Feb 05, 2009 8:54 pm
Forum: Microbiology
Topic: Aerobic Colony COunt Units
Replies: 5
Views: 6325

The Fiber Disease

... consisting of many organisms. This is usually meant to be a social unit of eusocial animals, where division of labour is highly specialised ... these bees pack together in clusters of between 5000 and 40000, the colony can thermoregulate.[3] James Lovelock, with his "Gaia Theory" ...

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by London
Wed Dec 27, 2006 5:31 am
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 6243049

The Fiber Disease

... secretly developed at Fort Detrick, the U.S. Army's biological warfare unit. Although the claim was dismissed as "infectious propaganda," ... of five recorded epidemics of "simian AIDS" erupted in a colony of stump-tailed macaques housed in a primate lab at Davis, California. ...

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by Skytroll
Thu Jul 06, 2006 1:57 am
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 6243049

Did death evolve?

... We could also consider the genetic material as the true "unit of life". The first proto-organisms or self-replicating molecules ... happening is that the self-replicating molecule (living in a vast super colony) is "shedding" its "coat". It "lives" ...

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by Pepper
Sat Apr 29, 2006 10:45 pm
Forum: Ecology
Topic: Did death evolve?
Replies: 114
Views: 87758

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