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Scutellum cells of mature (A,C) and 96 h germinated barley grain (B,D) stained with Lugol’s iodine to indicate the presence of starch granules. (C,D) are higher magnification images of areas within the blue boxes in (A,B), respectively. Selected starch granules are indicated in (C,D) with blue arrows. Scale bar is 50 μm. e, endosperm; sc, scutellum; se, scutellar epithelium; s, shoot; r, root.
