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Light microscopy of transverse sections of buckwheat seed. A-D) Sections stained with Azan trichrome; E-F) unstained sections observed at fluorescence microscopy; A) bottom part of the seed; B) intermediate part; C) top of the seed. A, Aleurone; C, cotyledon; CO, cortical; E, endosperm; EP, epiderm outside; M, meristem; PC, procambium; R, radicle; SC, seed coat. Scale bars: A-C) 125 μm; D-F) 31 μm.
