摘要
长期以来,大多数研究工作者部认为,花药开裂完全依赖于药室内壁细胞次生纤准状加厚产生的拉力。周喜滋(1978)提出了水稻“药室间组织间隙”的概念脚。小麦的花药也曾报道存在腔状结构。本研究以花药正常开裂的小麦、粟品种和花药不开裂的粟雄性不育系作对比观察,以探讨粟是否存在腔状结构,以及这种结构与花药开裂的关系。
A concept of“open space”in the anther tissue structure of foxtail millet(Setaria italica) and wheat(Triticum aestivum)has been suggested.In the late stage of anther development, “open spaces”are formed beneath the epidermis at the opening place between two anther cham- bers.They get through the bilateral edge of the anther longitudinally making the chambers ea- sy to open.“Open space”is considered to be one of the inner factors of anther opening in fo- xtail millet and wheat.
