BEACHNET==> New article

[Muruleedhara Byappanahali <byappan@usgs.gov>]

Applied and Environmental Microbiology, December 2007,
p. 7757-7758, Vol. 73, No. 23
0099-2240/07/$08.00+0     doi:10.1128/AEM.01333-07
Copyright
© 2007, American
Society for Microbiology. All Rights Reserved.
Microarray Analysis of Escherichia coli Strains
from Interstitial Beach Waters of Lake Huron (Canada)

T. Kon,1 S. C. Weir,2 J. T. Trevors,1
H. Lee,1 J. Champagne,3 L. Meunier,3 R.
Brousseau,3,4 and L. Masson3,4*

Department of Environmental Biology, University of Guelph, Guelph, Ontario, Canada N1G 2W1,¹ Ontario Ministry of the Environment, 125 Resources Rd., Toronto, Ontario, Canada M9P 3V6,² Biotechnology Research Institute, National Research Council of Canada, 6100 Royalmount Ave., Montreal, Québec, Canada H4P 2R2,³ Département de Microbiologie et Immunologie, Université de Montréal, 2900 Edouard Montpetit Blvd., Montréal, Québec, Canada H3T 1J42⁴

Received 14 June 2007/ Accepted 13 September 2007

DNA microarray analyses revealed that clusters of repetitive extragenic palindromic PCR-related Escherichia coli isolates were isogenic only within interstitial Lake Huron beach water samples and not in surrounding waters. This suggested that adaptation and growth occurred within the interstitial water sites tested. All isolates were nonpathogenic, and three lake isolates possessed tetracycline resistance genes.



Murulee Byappanahalli, Ph. D.
Research Microbiologist
U.S. Geological Survey, Great Lakes Science Center
Lake Michigan Ecological Research Station,
1100 N. Mineral Springs Road
Porter, Indiana 46304
Phone: (219) 926-8336 ext. 421
Fax:      (219) 929-5792
E-mail: byappan@usgs.gov