Kennedy J R, Zimmerman A M
J Cell Biol. 1970 Dec;47(3):568-76. doi: 10.1083/jcb.47.3.568.
Exposure of Tetrahymena pyriformis to 7,500 or 10,000 psi of hydrostatic pressure for 2, 5, or 10 min intervals results in a change in cell shape and ciliary activity. Shape changes occur concurrently with a degradation of longitudinal microtubules in a posterior to anterior direction. High pressure also causes a disruption of ciliary activity. Fine structural analysis reveals a breakdown (presumably microtubule depolymerization) of the central ciliary microtubules. The depolymerization begins at the junction of the central ciliary microtubules with the axosome and progresses distally along the ciliary shaft for a distance of about 0.5 micro.
将梨形四膜虫暴露于7500或10000磅/平方英寸的静水压力下2、5或10分钟,会导致细胞形状和纤毛活动发生变化。形状变化与纵向微管从后向前方向的降解同时发生。高压还会导致纤毛活动中断。精细结构分析显示中央纤毛微管出现断裂(推测为微管解聚)。解聚始于中央纤毛微管与轴体的连接处,并沿纤毛轴远端延伸约0.5微米的距离。