A fracture of an apparently fully formed trichocyst showing that the body of paracrystalline material fills the organelles lumen and is bound to the membrane by a loose array of threads. The membrane, both its P-fracture face and E-fracture face, has irregularly shaped pits where the threads may be linked to IMPs in the membrane so that chunks of membrane are removed during fracturing. TEM taken on 6/3/88 by C. Schroeder with Zeiss 10A operating at 80kV. Neg. 19,800X. Bar = 0.25µm.
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