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Starch granules from sbe2a leaves are abnormal and irregular. SEM of starch granules is shown at the end of the light (A–D) and dark (E–H) phases of the diurnal cycle. Starch was extracted from Sbe2a wild-type (A, B, E, and F) and sbe2a mutant (C, D, G, and H) leaves harvested from 1-month-old plants at the end of the light and dark phases. Bars = 2 μm.
