STUDY OF THE PHYSIOLOGICAL REORGANIZATION ON KERONOPSIS RUBRA
红色角毛虫生理改组过程的研究

During physiological reorganization of Keronopsis rubra, when old ciliatures disintegrate, the primor-dia of the new AZM, UM, F-V-T cirri, and left- and right marginal cirri appear orderly. Soon, the differentiation of the primordia, the formation and localization ofthe new structures occur. The process of the replacement of the old structures by the new ones is similar to the ciliatural evolution of this ciliate during morphogenesis; When AZM reorganizes, new AZM primordium develops in the left side of the left middle ventral cirri, moves towards the old AZM and replaces it, continuously. The event is different from other hypotrichs, in which, during physiological reorganization, new AZM primordium moves and replaces the old structures in the old AZM, gradually.