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Applied and Environmental Microbiology, May 1999, p. 1871-1875, Vol. 65, No. 5
0099-2240/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.

Differentiation of Vibrio alginolyticus Strains Isolated from Sardinian Waters by Ribotyping and a New Rapid PCR Fingerprinting Method

Stefania Zanetti,1 Antonella Deriu,1 Ilaria Duprè,1 Maurizio Sanguinetti,2 Giovanni Fadda,2 and Leonardo A. Sechi1,*

Dipartimento di Scienze Biomediche, Sezione di Microbiologia Sperimentale e Clinica, Università degli studi di Sassari, 07100 Sassari,1 and Istituto di Microbiologia, Facoltà di Medicina e Chirurgia "Agostino Gemelli," Università Cattolica del Sacro Cuore, 00168 Rome,2 Italy

Received 8 December 1998/Accepted 1 February 1999

We investigated the usefulness of a novel PCR fingerprinting technique, based on the specific amplification of genomic regions, to differentiate 30 Vibrio alginolyticus strains isolated in Sardinian waters. The different profiles obtained were scanned and analyzed by a computer program in order to determine genetic relationships. The results were then compared with the patterns obtained by ribotyping with HindIII, KpnI, and XbaI restriction enzymes. PCR fingerprinting could differentiate the strains analyzed into 12 different patterns, whereas ribotyping with XbaI, which produced the highest number of patterns, generated only 7 different profiles. This study revealed the superior discriminative power of the proposed technique for the differentiation of related V. alginolyticus strains and the potential use of PCR fingerprinting in epidemiological studies.

* Corresponding author. Mailing address: Dipartimento di Scienze Biomediche, Sezione di Microbiologia Sperimentale e Clinica, Università degli studi di Sassari, Viale S. Pietro 43/B, 07100 Sassari, Italy. Phone: 79-228303. Fax: 79-212345. E-mail: sechila{at}ssmain.uniss.it.

Applied and Environmental Microbiology, May 1999, p. 1871-1875, Vol. 65, No. 5
0099-2240/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.




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