(a) Concentrations of zearalenone (ZON), ZON-4-Glc, ZON-4-Sulf, α-ZOL and β-ZOL found in the growth medium, depending on the time of exposure of Arabidopsis thaliana to 50 μM ZON. (b) Relative signal intensities divided by the response factors of ZON, ZON-4-Glc, ZON-4-Sulf, α-ZOL and β-ZOL found in the cell extracts, depending on the time of exposure of A. thaliana to 50 μM ZON. (c) Relative signal intensities of ZON-DiHex, ZON-MalGlc and β-ZOL-Glc found in the cell extracts, depending on the time of exposure of A. thaliana to 50 μM ZON.