Abstract
Isolates ofStenotrophomonas maltophilia species display the feature “temperature-dependent susceptibility” (TDS) to antibiotics. Both 30TDS strains (at least 4 times lower value of minimum inhibitory concentration (MIC) of an antibiotic at 30 than at 37°C) and 37TDS strains (at least 4 times lower value of MIC at 37 than at 30°C) were described. Changes in the distribution of saturated and unsaturated fatty acids (FA) at 30 and 37°C were considered as one of possible causes of the TDS phenomenon. Gas chromatography was used to determine the distribution of individual FA in five 37TDS strains ofS. maltophilia (Group I); in five strains with MIC values unaffected by the cultivation temperature (Group II) and in six 30TDS (four strains) or 30/37TDS (two strains) isolates (Group III). At identical temperatures, no statistically significant differences in the distribution of major FA (iso-15:0,anteiso-15:0, 16:0 and 16:1) were registered between individual groups. Statistically significant (p<0.05) differences between groups were found in minor FA only (iso-16:0,iso-17:0 andiso-17:1). Distribution changes of cellular FA at 30 and 37°C can be considered to play only a minor role in the formation of the TDS phenomenon.
Similar content being viewed by others
References
Denton M., Kerr K.G.: Microbiological and clinical aspects of infection associated withStenotrophomonas maltophilia.Clin. Microbiol. Rev. 11, 57–80 (1998).
Finkmann W., Altendorf K., Stackebrandt E., Lipski A.: Characterization of N2O-producingXanthomonas-like isolates from biofilters asStenotrophomonas nitritireducens sp. nov.,Luteimonas mephitis gen.nov., sp.nov. andPseudoxanthomonas broegbernensis gen. nov., sp.nov.Internat. J. Syst. Evol. Microbiol. 50, 273–282 (2000).
Glucksman A.M., Skipper H.D., Brigmon R.L., Santo Domingo J.W.: Use of the MIDI-FAME technique to characterize ground-water communities.J. Appl. Microbiol. 88, 711–719 (2000).
Hejnar P., Kolář M., Hájek V., Koukalová D., Hamal P.: Occurrence of variants with temperature-dependent susceptibility (TDS) to antibiotics amongStenotrophomonas maltophilia clinical strains.Folia Microbiol. 46, 151–155 (2001).
Howe R.A., Wilson M.P., Walsh T.R., Millar M.R.: Susceptibility testing ofStenotrophomonas maltophilia to carbapenems.J. Antimicrob. Chemother. 40, 13–17 (1997).
Magee J.T., Hindmarch J.M., Winstanley T.G.: A pyrolysis mass spectrometry study of temperature-dependent compositional shifts inXanthomonas (Pseudomonas) maltophilia.Zbl. Bakteriol. 285, 299–304 (1997).
Moss C.W., Samuels S.B., Liddle J., McKinney R.M.: Occurrence of branched-chain hydroxy fatty acids inPseudomonas maltophilia.J. Bacteriol. 114, 1018–1024 (1973).
Moss C.W., Dees S.B.: Cellular fatty acids and metabolic products ofPseudomonas species obtained from clinical specimens.J. Clin. Microbiol. 4, 492–502 (1976).
National Committee for Clinical Laboratory Standards (NCCLS):Methods for Dilution Antimicrobial Susceptibility Tests for Bacteria that Grow Aerobically: Approved Standard M7-A3, 3rd ed. NCCLS, Villanova (USA) 1993.
Rahmati-Bahram A., Magee J.T., Jackson S.K.: Growth temperature-dependent variation of cell envelope lipids and antibiotic susceptibility inStenotrophomonas (Xanthomonas) maltophilia.J. Antimicrob. Chemother. 36, 317–326 (1995).
Rahmati-Bahram A., Magee J.T., Jackson S.K.: Effect of temperature on aminoglycoside binding sites inStenotrophomonas maltophilia.J. Antimicrob. Chemother. 39, 19–24 (1997).
Richardson P.R.S., Tappin M.J., Thickett K.J., Nelson M.E.: Temperature-dependent resistance to gentamicin in graft keratitis byStenotrophomonas (Xanthomonas) maltophilia.Eye 11, 124–126 (1997).
Veys A., Callewaert W., Waelkens E., Van den Abbeele K.: Application of gas-liquid chromatography to the routine identification of nonfermenting Gram-negative bacteria in clinical specimens.J. Clin. Microbiol. 27, 1538–1542 (1989).
Wheat P.F., Winstanley T.G., Spencer R.C.: Effect of temperature on antimicrobial susceptibilities ofPseudomonas maltophilia.J. Clin. Pathol. 38, 1055–1058 (1985).
Zweig G., Sherm J. (Eds.):Handbook of Chromatography Lipids, Vol. 1. CRC Press, Boca Raton (USA) 1984.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Hejnar, P., Chmela, Z. & Rypka, M. Fatty acid analysis ofStenotrophomonas maltophilia clinical strains showing different susceptibility to antibiotics at 30 and 37°C. Folia Microbiol 47, 742–746 (2002). https://doi.org/10.1007/BF02818682
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02818682