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Journal of Clinical Microbiology, April 2002, p. 1210-1213, Vol. 40, No. 4
0095-1137/02/$04.00+0     DOI: 10.1128/JCM.40.4.1210-1213.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.

Ribosomal DNA-Directed PCR for Identification of Achromobacter (Alcaligenes) xylosoxidans Recovered from Sputum Samples from Cystic Fibrosis Patients

Lixia Liu,1 Tom Coenye,1 Jane L. Burns,2 Paul W. Whitby,3 Terrence L. Stull,3,4 and John J. LiPuma1*

Department of Pediatrics and Communicable Diseases, University of Michigan Medical School, Ann Arbor, Michigan 48109,1 Department of Pediatrics, University of Washington, Seattle, Washington 98105,2 Departments of Pediatrics,3 Microbiology/Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 731044

Received 25 September 2001/ Returned for modification 18 December 2001/ Accepted 20 January 2002

The opportunistic human pathogen Achromobacter (Alcaligenes) xylosoxidans has been recovered with increasing frequency from respiratory tract culture of persons with cystic fibrosis (CF). However, confusion of this species with other closely related respiratory pathogens has limited studies to better elucidate its epidemiology, natural history, and pathogenic role in CF. Misidentification of A. xylosoxidans as Burkholderia cepacia complex is especially problematic and presents a challenge to effective infection control in CF. To address the problem of accurate identification of A. xylosoxidans, we developed a PCR assay based on a 16S ribosomal DNA sequence. In an analysis of 149 isolates that included 47 A. xylosoxidans and several related glucose-nonfermenting species recovered from CF sputum, the sensitivity and specificity of this PCR assay were determined to be 100 and 97%, respectively. The availability of this assay will enhance identification of A. xylosoxidans, thereby facilitating study of the pathogenic role of this species and improving infection control efforts in CF.

* Corresponding author. Mailing address: Department of Pediatrics and Communicable Diseases, 8323 MSRB III, Box 0646, 1150 W. Medical Center Dr., Ann Arbor, MI 48109-0646. Phone: (734) 936-9767. Fax: (734) 764-4279. E-mail: jlipuma{at}umich.edu.

Journal of Clinical Microbiology, April 2002, p. 1210-1213, Vol. 40, No. 4
0095-1137/02/$04.00+0     DOI: 10.1128/JCM.40.4.1210-1213.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.



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