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Micrographs of the hard endosperm (A) at 500×, intermediate endosperm (B) at 500x, soft endosperm (C) at 5000×, and (D) protein bodies at 5000× of sorghum samples corresponding to (1) red and (2) yellow sorghum. Abbreviations: SG, starch granule; PM, protein matrix; PB, protein bodies.
