Fleury A
Laboratoire de Biologie cellulaire, Université Paris XI, Orsay, France.
Biosystems. 1988;21(3-4):309-16. doi: 10.1016/0303-2647(88)90027-5.
A new morphogenetic criterion, the "unit of turn-over" emerges from the dynamic analysis of hypotrich morphogenesis. The unit corresponds to the set of morphogenetically interdependent somatic structures whose turn-over is correlated to nuclear modifications. Hypotrichs are seen to conform to one of two very general modes of turn-over of their ciliary structures during a variety of morphogenetic processes, one in which all somatic cilia and their infraciliature are replaced, and the other in which only the cirral structures (not the dorsal dikinetids) undergo replacement. A strong correlation is observed between the type of turn-over occurring and ultrastructural features of the corresponding species. From an evolutionary point of view, these data lead to a new subdivision of hypotrichs, into the Euhypotrichina and the Pseudohypotrichina.
从纤毛虫形态发生的动态分析中出现了一个新的形态发生标准，即“更新单位”。该单位对应于形态发生上相互依存的体细胞结构的集合，其更新与核修饰相关。在各种形态发生过程中，纤毛虫的纤毛结构呈现出两种非常普遍的更新模式之一，一种是所有体细胞纤毛及其纤毛下器都被替换，另一种是只有触毛结构（而非背双动基列）被替换。观察到发生的更新类型与相应物种的超微结构特征之间存在强烈的相关性。从进化的角度来看，这些数据导致了纤毛虫的一个新的分类，分为真纤毛虫亚纲和假纤毛虫亚纲。
