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. 2018 Aug 28;9:1238. doi: 10.3389/fpls.2018.01238

FIGURE 6.

FIGURE 6

Example images for selected m/z ions in salt treated nodules with AUC values above 0.75. The optical image is shown in (A) and (B–D) show three different m/z. CHCA was the matrix for all images shown. The white scale bar indicates 1 mm.