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Applied and Environmental Microbiology, December 1999, p. 5612-5614, Vol. 65, No. 12
0099-2240/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.

Hemolytic Activity and Siderophore Production in Different Aeromonas Species Isolated from Fish

Jesús A. Santos,* César J. González, Andrés Otero, and María-Luisa García-López

Department of Food Hygiene and Food Technology, Veterinary Faculty, University of León, E-24071 León, Spain

Received 3 June 1999/Accepted 23 September 1999

The hemolytic activity and siderophore production of several strains of motile aeromonads were determined. The hemolytic activity of Aeromonas caviae and Aeromonas eucrenophila was enhanced after trypsinization of the samples. The enhancement of hemolysis was observed in strains that carried an aerolysin-like gene, detected by a PCR procedure. Siderophore production was demonstrated in all but one strain of Aeromonas jandaei. No apparent relationship was observed between the presence of plasmid DNA and hemolysis or siderophore production.

* Corresponding author. Mailing address: Departamento de Higiene y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad de León, E-24071 León, Spain. Phone: 34/987/291286. Fax: 34/987/291284. E-mail: dhtjsb{at}unileon.es.

Applied and Environmental Microbiology, December 1999, p. 5612-5614, Vol. 65, No. 12
0099-2240/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.


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