Fig. 3From: Similar, but different: structurally related azelaic acid and hexanoic acid trigger differential metabolomic and transcriptomic responses in tobacco cellsUHPLC-QTOF-MS chromatograms (extracted ion traces in ESI negative mode) indicating the chromatographic separation and mass spectrometric detection of azelaic – and hexanoic acid responsive biomarkers in extracts corresponding to the 12 h treatments: [1] caffeoylputrescine glycoside, [2] cis-5-caffeoylquinic acid, [3] feruloylglycoside, [4] azelaic acid glycoside, [5] feruloyl-3-methoxytyramine glycoside, [6] feruloyl-3-methoxytyramine conjugate and [7] feruloyl-3-methoxytyramine. The numbers of the structures correspond to those in Additional file 3: Figure S3 and Table 1. Perturbations in the levels of these metabolites are shown in Figs. 4 and 5 Back to article page