胼胝质

The tetrasporophyte wrapped by callose is of simultaneous type.

体呈面体型，被壁所包围。

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

绒毡层细胞，N：细胞，TE:体，TW：绒毡层细胞壁，V：液胞,D：高尔基体，C：壁，M：线粒体。

These results indicate that callose metabolism is active and very important not only in microsporogenesis but also in microgametogenesis in rice.

养细胞的细胞中继续积累，花粉成熟对在小孢子形成和发育过程中的功能进行了讨论。