Functional roles of the transverse and longitudinal flagella in the swimming motility of Prorocentrum minimum (Dinophyceae)
Functional roles of the transverse and longitudinal flagella in the swimming motility of Prorocentrum minimum (Dinophyceae)
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DOI：
10.1242/jeb.01141
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发表时间：
2004-08
影响因子：
2.8
通讯作者：
Iku Miyasaka;K. Nanba;K. Furuya;Yoshihachiro Nimura;A. Azuma
中科院分区：
文献类型：
--
作者：
Iku Miyasaka;K. Nanba;K. Furuya;Yoshihachiro Nimura;A. Azuma
摘要描述甲藻原甲藻最小，它有一个纵向和横向鞭毛的运动方程，制定和研究使用基于流体动力学阻力理论的数值计算。计算结果表明，每个鞭毛在细胞运动中都有自己的功能。横鞭毛起推进作用，为细胞沿着螺旋状游动路径的纵轴运动提供主要驱动力或推力;纵鞭毛起舵作用，在垂直于螺旋纵轴的方向上给细胞一个侧向力。结合这些功能的结果类似于观察到的运动的螺旋游泳运动。横鞭毛上的鞭毛毛是必要的，使计算的细胞运动与观察到的细胞运动一致。
SUMMARY Equations describing the motion of the dinoflagellate Prorocentrum minimum, which has both a longitudinal and a transverse flagellum, were formulated and examined using numerical calculations based on hydrodynamic resistive force theory. The calculations revealed that each flagellum has its own function in cell locomotion. The transverse flagellum works as a propelling device that provides the main driving force or thrust to move the cell along the longitudinal axis of its helical swimming path. The longitudinal flagellum works as a rudder, giving a lateral force to the cell in a direction perpendicular to the longitudinal axis of the helix. Combining these functions results a helical swimming motion similar to the observed motion. Flagellar hairs present on the transverse flagellum are necessary to make the calculated cell motion agree with the observed cell motion.