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. 2015 Jun 3;10(6):e0128527. doi: 10.1371/journal.pone.0128527

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© 2015 Jang et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Fig 1 — The structures of seed coats on the dorsal side of seeds were observed with SEM. Cracks (arrows) and pits (arrowheads) were observed in Tachinagaha (A) and its impermeable NIL (TA-HS) (B), respectively. C to F, Surface features after removing the cuticle with hot (60°C) 1 M NaOH. The cracks observed in Tachinagaha show a ladder-like structure (C and E) in which palisade cells are partly connected (E). Pits in TA-HS are closed (D and F). Bars in A to D = 50 μm; E and F = 5 μm.