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The observation on amyloplasts at different stages of banana flesh ripening. (a–d) scanning electron microscopy (SEM) image of F1, F2, F3, and F4, respectively; (e–h) transmission electron microscopy (TEM) image of F1, F2, F3, and F4, respectively. SG: starch grain; CW: cell wall; ML: middle lamella; PM: plasma membrane.
