Affiliation:
1. Department of Medical Microbiology and Hygiene, Gärtner & Colleagues Laboratories, Ravensburg, Germany
Abstract
ABSTRACT
In 2001,
Corynebacterium freneyi
was described as a new fermentative, α-glucosidase-positive
Corynebacterium
species related to
C. xerosis
based on data from three strains. During a review of our extensive culture collection we encountered 18 additional
C. freneyi
strains and further characterized them in detail. Thirteen of the 18 strains were isolated from female genital tract specimens without any obvious disease association. Phenotypically,
C. freneyi
can be easily differentiated from
C. xerosis
by its distinct wrinkled colonies whereas nearly all other routinely applied phenotypic tests do not allow a unanimous separation of
C. freneyi
from
C. xerosis
. Restriction length polymorphism analysis using CfoI of the 16S-23S rRNA gene intragenic spacer definitively allows differentiation between the two species. Surprisingly, comparative 16S rRNA gene analysis does not discriminate between
C. freneyi
and
C. xerosis
because the designated type strain of
C. freneyi
is not the most representative strain for this species. The present report also includes detailed data on the antimicrobial susceptibility pattern of
C. freneyi
presented here for the first time. Based on the large number of additional
C. freneyi
strains from our culture collection, we provide an extended and emended species description of
C. freneyi
.
Publisher
American Society for Microbiology
Reference15 articles.
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Bacteremia
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