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. 2013 May 21;199(4):936–947. doi: 10.1111/nph.12342

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© 2013 New Phytologist Trust

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Fig 2 — Void spaces in parts of a developing oilseed rape (Brassica napus) seed based on synchrotron radiation CT scans (0.75 μm per pixel resolution). (a, b) Three-dimensional model of void spaces and cotyledonary cells facing the testa (region ‘A’ in Fig. 1(c), cfr. vertical radial section). (c) Light microscope image of the outer cotyledon demonstrating the change in cell shape from outer to inner regions. (d, e) Three-dimensional model of void spaces and cotyledonary cells facing the inner cotyledon (region ‘B’ in Fig. 1(c), cfr. vertical radial section). AS, airspace; ES, endosperm; EP, epidermis; MC, mesophyl cells; PC, palisade cell; SC, seed coat (testa).