keystone bacteria

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keystone bacteria2016-12-26T00:53:58+00:00

keystone bacteria


A generic term for the chronically first bacterial species to colonise a particular site in a particular type of patient.

Keystone bacteria may be

• Good–e.g., bifidobacteria which colonise healthy bowels of breast-fed infants, or

• Bad–e.g., Porphyromonas gingivalis, which are linked to periodontal disease, 

The microenvironment created by keystone bacteria favour the growth and maintenance of site-specific species of bacteria. 

Reference Composite definition, author 17.09.2013

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