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Transmission electron micrographs of the anthers from control (A–E) and the CHA-SQ-1 treatment (F–J) of wheat plants. (A,F) Tetrad stage. (B,G) Early uninucleate stage. (C,H) Later-uninucleate stage. (D,I) Binucleate stage. (E,J) Trinucleate stage. E, epidermis; En, endothecium; ML, middle layer; T, tapetum; Msp, microspore; P, pollen; dP, degenerated pollen. Bars = 10 μm.
