Fig. 2

SEM observations of the anther epidermis in Y66 and Y73 plants on the flowering day. Anthers and epidermis of Y66 sterile plants (A-C), Y66 fertile plants (D-F), Y73 sterile plants (G-I), and Y73 fertile plants (J-L). Magnification factor: × 60 (A, D, G, J); × 1 000 (B, E, H, K); × 3 000 (C, F, I, L). Scale bars: 500 μm (A, D, G, J); 50 μm (B, E, H, K); 10 μm (C, F, I, L)