Department of Botany, University College of Swansea, Wales, UK.
Planta. 1971 Mar;102(1):61-71. doi: 10.1007/BF00391450.
The ultrastructure of coleoptile cells of ungerminated rice grains has been examined following fixation in glutaraldehyde and osmium tetroxide. In many respects the cell structure resembles that reported for other dormant seed tissues: the cells contain protein bodies and lipid droplets, mitochondria and plastids show little internal structure but cytoplasm invaginates into many plastids; golgi cisternae cannot be discerned. Rough ER is present as cisternae surrounding protein bodies, as occasional regions of parallel layers, and in concentric whorls where it alternates with smooth paired membranes of an unknown nature. The ribosomes on the ER are at least partly arranged into regular rows. Various crystalline, presumably proteinaceous, inclusions lie in the groundplasm, plastids and nuclei.
对未萌发的稻谷胚细胞进行戊二醛和四氧化锇固定后，观察其超微结构。在许多方面，细胞结构类似于其他休眠种子组织的报道：细胞内含有蛋白体和脂滴，线粒体和质体结构简单，但细胞质内陷到许多质体中；高尔基体无法识别。粗糙内质网以围绕蛋白体的小池、偶尔的平行层区域和与未知性质的光滑配对膜交替出现的同心环的形式存在。内质网上的核糖体至少部分排列成规则的行。各种晶体状、推测为蛋白的内含物存在于细胞质基质、质体和核中。
