And identify the material, the pollen is present in the side wall of the pollen protein in the pistil of the party have been identified in the stigma that covers the surface of the protein film.

• 与识别有关的物质，在花粉的一方是存在于花粉壁的蛋白质；在雌蕊一方已确定的是覆盖在柱头表面的蛋白质薄膜。