PAIR FORMATION IN TETRAHYMENA-PYRIFORMIS, AN INDUCIBLE DEVELOPMENTAL SYSTEM
PAIR FORMATION IN TETRAHYMENA-PYRIFORMIS, AN INDUCIBLE DEVELOPMENTAL SYSTEM
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DOI：
10.1002/jez.1401880309
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发表时间：
1974-01-01
影响因子：
--
通讯作者：
BRUSSARD, TB
中科院分区：
文献类型：
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作者：
BRUNS, PJ;BRUSSARD, TB
梨形四膜虫有性株的成对形成过程是一个可诱导的途径，中断了营养生长的细胞活动。一个特定的一系列事件导致从植物生长的细胞交配对描述。该序列由两个独立的阶段组成：启动和共刺激。启动是对某些饥饿条件的反应，对张力敏感，不依赖于交配类型，在30°C下需要约两小时。共刺激是已经启动的不同交配类型的细胞之间的反应，需要特定的细胞-细胞相互作用，在30°C下需要约1小时，并导致能够形成配对的刺激细胞。了解导致程序化的接合发育活动的序列，使得有效的交配技术成为可能，并有助于寻找整个途径的遗传和生理成分。
The process of pair formation by sexual strains ofTetrahymena pyriformisis an inducible pathway interrupting the cellular activities of vegetative growth. A specific series of events leading from vegetatively growing cells to mating pairs is described. The sequence is composed of two separate stages: initiation and co‐stimulation. Initiation is the response to certain starvation conditions, is sensitive to tonicity, is independent of mating types, and takes about two hours at 30°C. Co‐stimulation is a reaction between already initiated cells of different mating types, requires specific cell‐cell interactions, takes about one hour at 30°C, and results in stimulated cells which are able to form pairs. An understanding of the sequence leading to the programmed developmental activities of conjugation makes possible efficient mating techniques and facilitates a search for genetic and physiological constituents of the entire pathway.