Open AccessPlasmids and Aeromonas virulence
Author(s) -
Brown Rebecca L,
Sanderson Kevin,
Kirov Sylvia M
Publication year - 1997
Publication title -
fems immunology & medical microbiology
Language(s) - English
Resource type - Journals
eISSN - 1574-695X
pISSN - 0928-8244
DOI - 10.1111/j.1574-695x.1997.tb01015.x
Subject(s) - plasmid , virulence , aeromonas , biology , biovar , microbiology and biotechnology , vibrionaceae , aeromonas veronii , carriage , bacteria , gene , genetics , medicine , pathology
Most putative virulence determinants of Aeromonas species are chromosomally encoded. However, several recent reports have indicated that some may be carried on or regulated by plasmids. Therefore, we examined the plasmid carriage rate of a total of 140 clinical and environmental Aeromonas isolates. Plasmid carriage was compared with the ability of an isolate to produce toxins and adhere to HEp‐2 cells. Overall, plasmid incidence in Aeromonas species was low (23/140, 16%) and independent of the source of the isolate. Plasmids were, however, more common in environmental isolates of A. veronii biovar sobria than in clinical isolates of this species ( P <0.05). We could find no evidence to support the recent literature findings that plasmids may have a role in Aeromonas virulence.