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. 2021 Dec 1;73(7):1992–2004. doi: 10.1093/jxb/erab527

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© The Author(s) 2021. Published by Oxford University Press on behalf of the Society for Experimental Biology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 1. — Mass imaging of planteose in dry seeds of O. minor. (A) MALDI–MS/MS spectra of purified planteose (upper panel) and O. minor dry seed (lower panel). 2,5-Dihydroxybenzoic acid was mixed with purified planteose or sprayed on a dry seed section as matrix, and m/z 527.16 [M+Na]⁺ was selected as a precursor ion. (B) Mass images of fragment ions m/z 365.11 (upper image) and 347.09 (lower image) from a precursor ion m/z 526.17. (C) Bright field image of an O. minor dry seed section. Eb, embryo; Es, endosperm, Ps, perisperm; SC, seed coat. Scale bar=20 µm.