刺细胞

刺细胞（英语：Cnidocyte，也称为刺丝胞）是刺胞动物门（Cnidaria）的动物（如水母、水螅、珊瑚、海葵等）中的一种特殊细胞，用于捕获猎物和防御捕食者。刺细胞是一种上皮肌肉细胞，核位于基部，细胞顶端具一个刺针，伸出体表，其结构相似于鞭毛；刺的基部也有基粒。^[1][2]

刺细胞的三种状态

参考文献

1. Holstein T.; Tardent P. An ultrahigh-speed analysis of exocytosis: nematocyst discharge. Science. 1984, 223 (4638): 830–833. Bibcode:1984Sci...223..830H. PMID 6695186. doi:10.1126/science.6695186.
2. Kass-Simon G.; Scappaticci A. A. Jr. The behavioral and developmental physiology of nematocysts (PDF). Canadian Journal of Zoology. 2002, 80 (10): 1772–1794 [2012-10-25]. doi:10.1139/Z02-135.

外部链接

• Dangerous marine animals of Northern Australia: the Sea Wasp Australian Institute of Marine Science; dangers of box jellyfish
• Nematocysts Firing Movie
• Wrobel, David. Nematocysts. The JelliesZone. （原始内容存档于2010-03-30）.
• Portuguese Man-of-War: Real Stories, Real People, Real Encounters.