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Cataldi, T.R.I.* ; Bianco, G.* ; Fonseca, J. ; Schmitt-Kopplin, P.

Perceiving the chemical language of gram-negative bacteria: Listening by high-resolution mass spectrometry.

Anal. Bioanal. Chem. 405, 493-507 (2013)
DOI PMC
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Gram-negative bacteria use N-acylhomoserine lactones (AHLs) as their command language to coordinate population behavior during invasion and colonization of higher organisms. Although many different bacterial bioreporters are available for AHLs monitoring, in which a phenotypic response, e.g. bioluminescence, violacin production, and β-galactosidase activity, is exploited, mass spectrometry (MS) is the most versatile detector for rapid analysis of AHLs in complex microbial samples, with or without prior separation steps. In this paper we critically review recent advances in the application of high-resolution MS to analysis of the quorum sensing (QS) signaling molecules used by Gram-negative bacteria, with much emphasis on AHLs. A critical review of the use of bioreporters in the study of AHLs is followed by a short methodological survey of the capabilities of high-resolution mass spectrometry (HRMS), including Fourier-transform ion cyclotron resonance (FTICR) MS and quadrupole time-of-flight (qTOF) MS. Use of infusion electrospray ultrahigh-resolution FTICR MS (12 Tesla) enables accurate mass measurements for determination of the elemental formulas of AHLs in Acidovorax sp. N35 and Burkholderia ubonensis AB030584. Results obtained by coupling liquid chromatography with a hybrid quadrupole linear ion trap-FTICR mass spectrometer (LC-LTQ-FTICRMS, 7-T) for characterization of acylated homoserine lactones in the human pathogen Pseudomonas aeruginosa are presented. UPLC-ESI-qTOF MS has also proved to be suitable for identification of 3O-C(10)HSL in Pseudomonas putida IsoF cell culture supernatant. Aspects of sample preparation and the avoidance of analytical pitfalls are also emphasized.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Review
Schlagwörter N-Acyl-homoserine lactones; Gram-negative bacteria; Quorum sensing; FTICR MS; UPLC-ESI-qTOF MS; Mass spectrometry; N-acylhomoserine Lactones ; Quorum-sensing Signal ; Performance Liquid-chromatography ; Acyl-homoserine-lactones ; Pseudomonas-aeruginosa Pao1 ; To-cell Communication ; Linear Ion-trap ; Ltq-fticr-ms ; Electrospray-ionization ; Structural Identification
Sprache englisch
Veröffentlichungsjahr 2013
HGF-Berichtsjahr 2013
ISSN (print) / ISBN 1618-2642
e-ISSN 1618-2650
Zeitschrift Analytical and Bioanalytical Chemistry
Quellenangaben Band: 405, Heft: 2-3, Seiten: 493-507 Artikelnummer: , Supplement: ,
Verlag Springer
Verlagsort Heidelberg
Begutachtungsstatus Peer reviewed
Institut(e) Research Unit BioGeoChemistry and Analytics (BGC)
POF Topic(s) 30202 - Environmental Health
Forschungsfeld(er) Environmental Sciences
PSP-Element(e) G-504800-001
PubMed ID 22986985
DOI 10.1007/s00216-012-6371-2
WOS ID WOS:000313650800006
Scopus ID 84873711700
Erfassungsdatum 2013-02-11
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