From December 2002 to February 2003, 15 isolates of pandrug-resistant unidentified Acinetobacter species were recovered from seven patients treated on different wards or intensive care units. Both 16S-23S rRNA intergenic spacer PCR-restriction fragment length polymorphism profiles and sequence analysis of these isolates identified them as Acinetobacter baumannii. This pandrug-resistant A. bauma...

OBJECTIVES: The objectives of this project were to (1) identify the heterotrophic bacteria that colonize chloraminated distribution systems using bench-scale, pilot-scale, and full-scale environments, (2) determine whether benchscale and pilot-scale chloraminated systems are adequate models of full-scale chloraminated distribution systems, in regards to heterotrophic bacteria, and (3) explore t...

Functional and ecological signiŽcance of rDNA intergenic spacer variation in a clonal organism under divergent selection for production rate Elena Gorokhova, Thomas E. Dowling, Lawrence J. Weider, Teresa J. Crease and James J. Elser Department of Biology, Arizona State University, Tempe, AZ 85287-1501, USA The University of Oklahoma Biological Station, HC-71, Box 205, Kingston, OK 73439, USA De...

Two primer sets for automated ribosomal intergenic spacer analysis (ARISA) were used to assess the bacterial community composition (BCC) in Lake Mendota, Wisconsin, over 3 years. Correspondence analysis revealed differences in community profiles generated by different primer sets, but overall ecological patterns were conserved in each case. ARISA is a powerful tool for evaluating BCC change thr...

The 16S-23S rRNA intergenic spacer regions (ISRs) of five strains of "Fusobacterium pseudonecrophorum" which had been proposed as a new species, were compared with those of F. varium ATCC 8501T. All the strains of "F. pseudonecrophorum" exhibited of sequence similarities of 97.7% to 100% to the strain of F. varium in their 16S-23S rRNA ISR sequences. This indicates that the strains of "F. pseud...