鞭毛力学与精子导向

English | 457 pages | Bentham Science Publishers Ltd. (2015) | B01CGTAK5C | PDF | 8.34 Mb

Experimental research using spermatozoa, a highly specialized cell with organelles involved in gene transfer, energy supply and cellular motility, has always occupied the forefront of studies in cell and reproductive biology. Several spermatological experiments have focused on the attraction of a spermatozoon toward the egg – sperm chemotaxis or sperm guidance. This process ubiquitously occurs in the reproductive system of many organisms. After its discovery in the late 19th century in plants, sperm chemotaxis is known to play a crucial role in fertilization success in both plants and animals. Spermatology has expanded in focus in recent years, as the structure of molecules relevant to sperm chemotaxis has been recently determined in several species of invertebrates and vertebrates, which promises remarkable progress for understanding events relevant to sexual reproduction. Reflecting upon these trends in the long history of sperm chemotaxis, Flagellar Mechanics and Sperm Guidance gathers leaders in the field of spermatology, who have presented their experimental research on the chemical cues behind flagellate behavior in a variety of organisms including bikonts and spermatozoa of marine invertebrates and vertebrates (fish, amphibians and mammals). Reviews presented in this monograph provide both basic and detailed information on the initiation and activation of sperm motility at spawning, sperm thermotaxis, and other mechanics such as mathematical models of a spermatozoon swimming. A comparison between features of sperm chemotaxis among different organisms is also given.

精子的研究使用了一种高度特化的细胞——参与基因转移、能量供应和细胞运动的精原细胞，始终占据细胞生物学与生殖生物学研究的前沿。许多生物体的生殖系统中普遍存在精子趋化现象，即精子朝向卵子移动的现象，也称为精子趋化或精子引导。这一过程在很多物种的生殖系统中都会发生。19世纪末首次发现植物中的精子趋化现象后，在动物界和植物界均发现了这种现象对受精成功率的重要性。近年来，随着多种无脊椎动物和脊椎动物的分子结构与精子趋化有关的物质被确定，精子学的研究领域正在扩展，并且这一进展有望为我们理解相关的性繁殖事件带来显著的进步。回溯精子趋化的长期历史，《鞭毛力学与精子导向》汇集了这一领域的领军人物，他们展示了多种生物体（包括鞭毛虫和海洋无脊椎动物及脊椎动物的精子）中鞭毛行为背后的化学线索实验研究。本书中的评论提供了关于不同物种精子趋化现象的初步信息及其详细分析，包括精子在产卵时启动与激活、精子热趋化以及其他力学方面如精子游动的数学模型等。书中还对不同生物体之间的精子趋化现象进行了比较。

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