Tumbling for Stealth?
Tumbling for Stealth?
复制标题
为隐身而翻滚？
作者：
R. Stocker;W. M. Durham
一种绿藻改变了它的鞭毛跳动模式，创造了一种奔跑和翻滚的运动，这可能有助于它逃避捕食。在微观世界中，最显著和最普遍的壮举之一是鞭毛的协调，鞭毛是从许多类型的细胞中伸出的细长的鞭状结构。鞭毛的集体运动(在真核生物中大量出现时也称为纤毛)驱动液体运输(1)，并允许个人通过合作节省能源(2)。由于纤毛的内部结构在从藻类到人类的真核生物中高度保守，像衣藻(见第一幅图，图A)这样的自由游动生物长期以来一直是强大的模型系统(3)。在本期第487页上，Polin等人。(4)展示莱茵衣藻鞭毛的同步性如何控制这种绿藻在水中的运动，这是其生态适宜性的关键决定因素。
A green alga changes its flagellar beating patterns to create a run-and-tumble motion that may help it escape predation. One of the most remarkable and pervasive feats in the microscopic world is the coordination of flagella, the slender, whiplike structures that protrude from many types of cells. The collective motion of flagella (also known as cilia when they occur in large numbers in eukaryotes) drives fluid transport (1), and permits individuals to save energy through cooperation (2). Because the internal structure of cilia is highly conserved among eukaryotes from algae to humans, free-swimming organisms like Chlamydomonas (see the first figure, panel A) have long been powerful model systems (3). On page 487 of this issue, Polin et al. (4) show how synchronization of the flagella in Chlamydomonas reinhardtii governs the movement of this green alga through water, a key determinant of its ecological fitness.
DOI：
10.1242/jeb.113.1.401
发表时间：
1984
期刊：
The Journal of experimental biology
影响因子：
--
作者：
Tamm,SL
通讯作者：
Tamm,SL