In the mature sperm, acid phosphatase was localized in the percutor organ slightly, but it was massive and compact in the acrosomal tubule.

• 当精子成熟后酸性磷酸酶均匀分布在顶体管中；反应产物颗粒比较大；穿孔器部分发现有少量酸性磷酸酶分布.