Original Articles
Vol. 31 No. 2 (2016)
https://doi.org/10.4081/mm.2016.5636

Colonial morphology of Escherichia coli: impact of detection in clinical specimens

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Received: 17 November 2015
Published: 30 June 2016
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Escherichia coli, colonial morphology, macroscopic expression, MacConkey agar

Authors

Lucia Barcella
luciabarcella@gmail.com
Department of Microbiology, Bianchi Melacrino Morelli Hospital, Reggio Calabria, Italy.
Angelo Pasquale Barbaro
Department of Microbiology, Bianchi Melacrino Morelli Hospital, Reggio Calabria, Italy.
Santa Beatrice Rogolino
Department of Microbiology, Bianchi Melacrino Morelli Hospital, Reggio Calabria, Italy.
As part of bacteriological identification, the macroscopic observation of the colonies on a culture medium is a critical step as it allows the clinical microbiologist to conduct a primary screening of microorganisms and in some cases even to identify them. This study shows how the macroscopic observation of the colonies, in particular of the colonies of Escherichia coli isolated on MacConkey agar from various clinical specimens, allowed to identify 5 classes of morphological variants of the colonies or colonial morphology, thanks to the knowledge and the experience gained by the clinical microbiologist.

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Colonial morphology of Escherichia coli: impact of detection in clinical specimens. (2016). Microbiologia Medica, 31(2). https://doi.org/10.4081/mm.2016.5636

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