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Journal of Clinical Microbiology, November 2001, p. 4160-4162, Vol. 39, No. 11
0095-1137/01/$04.00+0   DOI: 10.1128/JCM.39.11.4160-4162.2001

Cellular Fatty Acid Composition of Lautropia mirabilis

Maryam I. Daneshvar,* Michael P. Douglas, and Robbin S. Weyant

Division of Bacterial and Mycotic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Public Health Service, U.S. Department of Health and Human Services, Atlanta, Georgia 30333

Received 20 April 2001/Returned for modification 16 July 2001/Accepted 15 August 2001

Ten strains of Lautropia mirabilis (ATCC 51599T and nine phenotypically similar clinical isolates) were examined for cellular fatty acid (CFA) composition to evaluate their chemical relatedness to known bacterial species and groups. The CFAs were liberated from whole cells by base hydrolysis, methylated, and analyzed by gas-liquid chromatography. CFA profiles were generated by using a commerical software package (MIDI, Newark, Del.). All strains tested had an identical CFA profile characterized by major amounts of 16:1omega 7c (41%) and 16:0 (44%); smaller amounts (1 to 4%) of 3-OH-10:0, 12:0, 14:0, 15:0, and 18:1 omega 7c; trace amounts (<1%) of 10:0, 18:2 and 18:0; and no cyclopropane acids. This profile was similar to the CFA profiles of Acidovorax delafieldii, Comamonas terrigena, and strains of an unclassified Centers for Disease Control group designated weak oxidizer group 1. CFA analysis, when supplemented by phenotypic characterization, is useful for the identification of L. mirabilis isolates.

* Corresponding author. Mailing address: Centers for Disease Control and Prevention, 1600 Clifton Rd., N.E., Mailstop D11, Atlanta, GA 30333. Phone: (404) 639-3861. Fax: (404) 639-4421. E-mail: mdaneshvar{at}cdc.gov.

Journal of Clinical Microbiology, November 2001, p. 4160-4162, Vol. 39, No. 11
0095-1137/01/$04.00+0   DOI: 10.1128/JCM.39.11.4160-4162.2001




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