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Representative scanning electron micrograph of mature wild-type fruit (stage 17) of A. thaliana. (A) Apex (top) and base (bottom) of fruit, with regions colored as indicated. (B) Transverse section with cell types colored corresponding to (A). Box: Valve margin region shown in (C). (C) Close up of valve margin region. Scale bars: 200 µm, (A,B); 50 µm; (C) (reproduced with permission from Liljegren et al. [8]).
