粘度对溶藻弧菌侧鞭毛和极鞭毛游动的影响。
Effect of viscosity on swimming by the lateral and polar flagella of Vibrio alginolyticus.
作者信息
Atsumi T, Maekawa Y, Yamada T, Kawagishi I, Imae Y, Homma M
机构信息
Department of Molecular Biology, Faculty of Science, Nagoya University, Japan.
出版信息
J Bacteriol. 1996 Aug;178(16):5024-6. doi: 10.1128/jb.178.16.5024-5026.1996.
Abstract
By using mutants of Vibrio alginolyticus with only a polar flagellum (Pof+ Laf-) or only lateral flagella (Pof- Laf+), we examined the relationship between swimming speed and the viscosity of the medium for each flagellar system. Pof+ Laf- cells could not swim in the high-viscosity environment (ca. 200 cP) in which Pof- Laf+ cells swam at 20 microns/s. The Pof- Laf+ cells swam at about 20 microns/s at normal viscosity (1 cP) without the viscous agent, and the speed increased to 40 microns/s at about 5 cP and then decreased gradually as the viscosity was increased further. These results show the functional difference between polar and lateral flagella in viscous environments.
摘要
通过使用仅带有极鞭毛（Pof + Laf -）或仅带有侧鞭毛（Pof - Laf +）的溶藻弧菌突变体，我们研究了每种鞭毛系统的游动速度与培养基粘度之间的关系。Pof + Laf - 细胞在高粘度环境（约200 cP）中无法游动，而Pof - Laf + 细胞在该环境中以20微米/秒的速度游动。在没有粘性剂的正常粘度（1 cP）下，Pof - Laf + 细胞以约20微米/秒的速度游动，在约5 cP时速度增加到40微米/秒，然后随着粘度进一步增加而逐渐降低。这些结果表明了在粘性环境中极鞭毛和侧鞭毛的功能差异。
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