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| Trichocysts (tric) are “carrot-shaped” extrusive organelles known to be secreted when a calcium influx is triggered mechanically, chemically or electrically. The trichocyst has a body and complex tip both containing paracrystalline-packed proteins. A field of glycogen storage granules is present around the tip. EM taken on 6/5/69 by R. Allen with Philips 300 TEM. Neg. 14,800X. Bar = 0.5µm. Part published in Görtz (ed.) Paramecium, Springer-Verlag, Berlin, p.23, 1988. |
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