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. 2018 May 4;9:595. doi: 10.3389/fpls.2018.00595

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Copyright © 2018 Liu, Shi, Li, Zhang and Song.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Comparison of scanning electron micrograph observations, I₂–KI staining, and anther morphology in K87B1-706A (A1–A9), Ju87B1-706A (B1–B9), and 706B (C1–C9) during the trinucleate stage. Anthers (A1,A6,B1,B6,C1,C6). Outer epidermal cells (A2,A3,B2,B3,C2,C3). Inner epidermal cells (A4,A5,B4,B5,C4,C5). Uby, Ubisch bodies. Microspores by I₂-KI staining (A7,B7,C7). Microspores (A8,A9,B8,B9,C8,C9). Ap indicates the germination aperture. Scale bars = 1 mm (A1,A6,B1,B6,C1,C6); 100 μm (A2,B2,C2); 50 μm (A7–A9,B7–B9,C7–C9); and 10 μm (A3–A5,B3–B5,C3–C5).