Richard Allen (University of Hawaii) (2011) CIL:36640, Paramecium multimicronucleatum, cell by organism, eukaryotic cell, Eukaryotic Protist, Ciliated Protist. CIL. Dataset

Paramecium also contains many crystals in older cultures. This micrograph is of a crystal taken from a cell in stationary phase (day 8 post-inoculation). Crystals are enclosed by a membrane and contain sheets of paracrystalline material similar to that in lysosomes and phagolysosomes that lie just inside the membrane. The crystal membrane has a pronounced glycocalyx like phagolysosomes and lysosomes and may store digestive enzymes in a paracrystalline form during periods of starvation or limited food supply. TEM taken on 3/6/80 by R. Allen with Hitachi HU11A operating at 75kV. Neg. 10,250X. Bar = 0.5µm.

变形虫在较老的培养中亦含有众多晶体。本显微照片展示的是从静止期（接种后第8天）的细胞中取出的晶体。晶体被膜所包裹，内部含有类似溶酶体和吞噬溶酶体中存在的副晶质材料层。晶体的包膜具有显著的糖萼，类似于吞噬溶酶体和溶酶体，并在饥饿期或食物供应有限期间可能以副晶质形式储存消化酶。电子显微镜照片由R. Allen于1980年3月6日拍摄，使用日立HU11A型电子显微镜，工作电压为75kV。负像，放大倍数为10,250倍。标尺长度为0.5微米。