Flagellar motion and fine structure of the flagellar apparatus in Chlamydomonas.
Flagellar motion and fine structure of the flagellar apparatus in Chlamydomonas.
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DOI：
10.1083/jcb.33.3.543
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发表时间：
1967-06
期刊：
影响因子：
--
通讯作者：
Ringo DL
中科院分区：
文献类型：
--
作者：
Ringo DL
利用光镜和电镜对莱茵衣藻（Chlamydomonas reinhardi）双鞭毛藻进行了研究，以确定其鞭毛在活细胞中的行为和鞭毛基器的结构。在正常的向前游泳中，鞭毛在同一平面上同步跳动，就像人类游泳者的蛙泳一样。绒毛的形态与纤毛的形态相似。偶尔，细胞向后游动，鞭毛在细胞后摆动。因此，同样的鞭毛器官产生两种运动。两鞭毛的中心一对纤维似乎位于同一平面，与鞭毛的平面一致。两个基底呈V形，顶部由一根条纹纤维连接，底部由两根较小的纤维连接。在基底体之间的区域有四条微管带，每条微管带包含四个小管，呈x形辐射，分叉并穿过细胞膜。描述了基体附近小管复杂排列的细节。似乎可能是连接纤维和微管起结构作用，从而维持鞭毛装置的排列。综述了植物鞭毛和原生动物中条纹纤维和微管与纤毛和鞭毛的关系。描述了在基部和鞭毛轴之间的过渡区域所观察到的结构，并对其发生进行了回顾。描述了鞭毛轴和鞭毛尖端的结构细节，并对后者进行了详细的评述。
The biflagellate alga Chlamydomonas reinhardi was studied with the light and electron microscopes to determine the behavior of flagella in the living cell and the structure of the basal apparatus of the flagella. During normal forward swimming the flagella beat synchronously in the same plane, as in the human swimmer's breast stroke. The form of beat is like that of cilia. Occasionally cells swim backward with the flagella undulating and trailing the cell. Thus the same flagellar apparatus produces two types of motion. The central pair of fibers of both flagella appear to lie in the same plane, which coincides with the plane of beat. The two basal bodies lie in a V configuration and are joined at the top by a striated fiber and at the bottom by two smaller fibers. From the area between the basal bodies four bands of microtubules, each containing four tubules, radiate in an X-shaped pattern, diverge, and pass under the cell membrane. Details of the complex arrangement of tubules near the basal bodies are described. It seems probable that the connecting fibers and the microtubules play structural roles and thereby maintain the alignment of the flagellar apparatus. The relation of striated fibers and microtubules to cilia and flagella is reviewed, particularly in phytoflagellates and protozoa. Structures observed in the transitional region between the basal body and flagellar shaft are described and their occurrence is reviewed. Details of structure of the flagellar shaft and flagellar tip are described, and the latter is reviewed in detail.