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Journal of Clinical Microbiology, January 2004, p. 220-228, Vol. 42, No. 1
0095-1137/04/$08.00+0     DOI: 10.1128/JCM.42.1.220-228.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.

Typing of Clinical and Environmental Aeromonas sp. Strains by Random Amplified Polymorphic DNA PCR, Repetitive Extragenic Palindromic PCR, and Enterobacterial Repetitive Intergenic Consensus Sequence PCR

Ewa Szczuka and Adam Kaznowski*

Department of Microbiology, Institute of Experimental Biology, Adam Mickiewicz University, 61-701 Poznan, Poland

Received 6 June 2003/ Returned for modification 13 August 2003/ Accepted 1 October 2003

A collection of 120 strains isolated from stool specimens collected from humans suffering from gastroenteritis and from environmental samples were analyzed by random amplified polymorphic DNA PCR (RAPD), repetitive extragenic palindromic PCR (REP-PCR), and enterobacterial repetitive intergenic consensus sequence PCR (ERIC-PCR). Species of Aeromonoas hydrophila, A. bestiarum, A. salmonicida, A. caviae, A. media, and A. veronii revealed clonal structure. There was no dominant clone causing gastroenteritis in humans. Moreover, there was no genetic similarity between clinical and environmental strains of Aeromonas sp. isolated from different geographical areas as well as from the same geographical area. Some clones colonized specific ecosystems, e.g., drinking water distribution systems. RAPD and ERIC-PCR methods had the same discriminatory power and proved to be useful for epidemiological investigation and population genetic analysis of Aeromonas spp., whereas REP-PCR was less effective for differentiating the isolates of Aeromonas spp.

* Corresponding author. Mailing address: Department of Microbiology, Institute of Experimental Biology, Adam Mickiewicz University, ul. Fredry 10, 61-701 Poznan, Poland. Phone: 48618294529. Fax: 48618294503. E-mail: akazn{at}amu.edu.pl.

Journal of Clinical Microbiology, January 2004, p. 220-228, Vol. 42, No. 1
0095-1137/04/$08.00+0     DOI: 10.1128/JCM.42.1.220-228.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.



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