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. 2018 Jun 28;9:892. doi: 10.3389/fpls.2018.00892

FIGURE 4.

FIGURE 4

The linamarin ([M+K]+ m/z 286.06873) signal obtained in 40 μm cross sections of M. esculenta stem excised 5 cm below apex (A,E) or 5 cm above soil surfaced (C,G) mounted either by freeze-dry (A–D) or freeze-thaw methodology (E–H). Scale represents 0–100% normalized signal intensity.