Some large vacuoles appeared in the tapetal cells of the sterile anthers at the early uninucleate pollen stage.

在单核早期，不育花粉的四分体有的大液泡出现。

Abbreviation: T: Tapetal; N: Nucleus; TE：Tetrad; TW: Wall of tapetal cell; V: V acuole; D: Dictyosome; C: Callose; M: Mitochondria.

绒毡层，N：核，TE:四分体，TW：绒毡层壁，V：液,D：高尔基体，C：胼胝质壁，M：线粒体。