TY - JOUR T1 - Optimized liquid chromatography-mass spectrometry approach for the isolation of minor stress biomarkers in plant extracts and their identification by capillary nuclear magnetic resonance. AU - Glauser,Gaetan, AU - Guillarme,Davy, AU - Grata,Elia, AU - Boccard,Julien, AU - Thiocone,Aly, AU - Carrupt,Pierre-Alain, AU - Veuthey,Jean-Luc, AU - Rudaz,Serge, AU - Wolfender,Jean-Luc, Y1 - 2007/12/15/ PY - 2007/10/24/received PY - 2007/12/04/revised PY - 2007/12/07/accepted PY - 2008/1/8/pubmed PY - 2008/5/6/medline PY - 2008/1/8/entrez SP - 90 EP - 8 JF - Journal of chromatography. A JO - J Chromatogr A VL - 1180 IS - 1-2 N2 - A LC-MS approach is presented for the isolation of minor key plant biomarkers, in view of their characterization by NMR at the microgram scale. Due to the complexity of plant extracts, the purification of metabolites present in low concentrations is critical. The strategy used relies on the optimization of the chromatographic analysis using ultra-performance liquid chromatography-time-of-flight mass spectrometry (UPLC-TOF-MS), thanks to modelling software. The optimized method is then transferred to semi-preparative LC conditions with MS detection. The approach is illustrated by the isolation of wound-induced jasmonate derivatives revealed by a metabolomic study in Arabidopsis thaliana leaves and their subsequent characterization by capillary NMR (CapNMR). SN - 0021-9673 UR - https://www.unboundmedicine.com/medline/citation/18177881/Optimized_liquid_chromatography_mass_spectrometry_approach_for_the_isolation_of_minor_stress_biomarkers_in_plant_extracts_and_their_identification_by_capillary_nuclear_magnetic_resonance_ DB - PRIME DP - Unbound Medicine ER -