BENDING PATTERNS OF CHLAMYDOMONAS FLAGELLA .1. WILD-TYPE BENDING PATTERNS
BENDING PATTERNS OF CHLAMYDOMONAS FLAGELLA .1. WILD-TYPE BENDING PATTERNS
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DOI：
10.1002/cm.970030204
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发表时间：
1983-01-01
影响因子：
--
通讯作者：
LUCK, DJL
中科院分区：
文献类型：
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作者：
BROKAW, CJ;LUCK, DJL
利用单毛衣单胞菌突变体和300 Hz闪光灯显微摄影，获得了鞭毛衣单胞菌正、反向跳动模式的详细信息，以及单毛细胞的旋转与正向模式弯曲周期的关系。鞭毛5-15.5亩。我拍了照片。当鞭毛长度小于正常长度12 ~ 13 μ m时，主弯的波长减小，弯曲度增大。M，但这些变化不足以保持弯曲模式的相似性。在反向模式下，鞭毛传播对称的、平面的、波动的波，其剪切振幅与正向模式相同；拍频增加19%，波长也有类似的减少。鞭毛搏动方向向细胞轴线的反向方向的重新定向，是由于搏动不对称性的减少和在搏动周期中较早激活主弯的滑动（相对于激活反向弯的滑动时间）引起的。还有一些罕见的敲打模式，可能与正向和反向敲打模式之间过渡的中间阶段有关。
Using a uniflagellate mutant of Chlamydomonas and flash photomicrography at 300 Hz, detailed information was obtained on the forward and reverse beating modes of Chlamydomonas flagella and on the relationship between rotation of the uniflagellate cell and the bending cycle of the forward mode. Flagella 5-15.5 .mu.m long were photographed. There is a decrease in wavelength and an increase in curvature in the principal bends when the length of the flagellum is less than the normal length of 12-13 .mu.m, but these changes are not sufficient to maintain similarity of the bending pattern. In the reverse mode, the flagellum propagates symmetrical, planar, undulatory waves with a shear amplitude which is the same as in the forward mode; there is a 19% increase in beat frequency and a similar decrease in wavelength. The reorientation of the flagellar beat direction towards the axis of the cell in the reverse mode is caused both by the decrease in asymmetry of beat and by activation of sliding in the principal bends at an earlier time in the beat cycle, relative to the time of activation of sliding in reverse bends. There are additional rare modes of beating which may be related to intermediate stages in the transition between forward and reverse beating modes.