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Journal of Clinical Microbiology, April 2001, p. 1231-1234, Vol. 39, No. 4
0095-1137/01/$04.00+0   DOI: 10.1128/JCM.39.4.1231-1234.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.

Biochemical Identification and Characterization of DNA Groups within the Proteus vulgaris Complex

J. Michael Janda,* Sharon L. Abbott, Shideh Khashe, and Will Probert

Microbial Diseases Laboratory, Division of Communicable Disease Control, California Department of Health Services, Berkeley, California 94704-1011

Received 23 October 2000/Returned for modification 29 December 2000/Accepted 12 January 2001

We placed 43 isolates belonging to the Proteus vulgaris complex into proposed DNA groups (genomovars) using five previously recommended tests (tests for esculin hydrolysis, production of acid from salicin, L-rhamnose fermentation, and elaboration of DNase and lipase). On the basis of the results of these five tests, 49% of the isolates fell into DNA groups 5 and 6, 37% fell into DNA group 2, and the remaining 14% fell into DNA groups 3 and 4. Sequencing of the 16S rRNA genes of 11 members of DNA groups 5 and 6 indicated that 10 of these isolates (91%) could be unambiguously assigned to one of these two genomospecies. Overall expression of selected enzymatic and virulence-associated characteristics did not differ significantly among DNA groups.

* Corresponding author. Mailing address: Microbial Diseases Laboratory, 2151 Berkeley Way, Berkeley, CA 94704-1011. Phone: (510) 540-2242. Fax: (510) 540-2374. E-mail: jjanda{at}dhs.ca.gov.

Journal of Clinical Microbiology, April 2001, p. 1231-1234, Vol. 39, No. 4
0095-1137/01/$04.00+0   DOI: 10.1128/JCM.39.4.1231-1234.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.


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