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. 2009 Apr 10;60(7):2055–2064. doi: 10.1093/jxb/erp073

Fig. 6.

Fig. 6.

Ultrastructural analysis of the male gametophyte. Normal male gametophytes (A, E, H) and abnormal male gametophytes (B, C, D, F, G, I) in HMG1/hmg1-1 hmg2-1/hmg2-1 plants. Abbreviations: ex, exine; pc, pollen coat; v, vacuole; m, mitochondria; p, plastid. Arrows indicate abnormal membrane structures of apparent endoplasmic reticulum origin. Scale bars indicate 10 μm (A, B, C, D), 1 μm (E, F, G), or 200 nm (H, I).