Relationship between Direction of Rolling and Yawing of Golden Hamster and Sea Urchin Spermatozoa

Cell Structure and Function

Sumio Ishijima¹  Yukihisa Hamaguchi¹ 

[1] Biological Laboratory, Faculty of Science, Tokyo Institute of Technology

关键词: flagellar movement;    golden hamster;    rolling swimming;    sea urchin;    spiral movement;    yawing motion;   

DOI  :  10.1247/csf.17.319

学科分类：分子生物学，细胞生物学和基因

来源: Japan Society for Cell Biology

【 摘 要 】

References(16)Cited-By(6)As a first step towards understanding the function and mechanism of spiral movement of spermatozoa swimming through a medium, the direction of rolling (rotational movement of the spermatozoa around their long axis) and that of yawing (circular motion of spermatozoa upon the surface of a glass microscope slide and coverslip) were examined for golden hamster and sea urchin spermatozoa. Most golden hamster spermatozoa yawed clockwise over the upper surface of a glass slide when viewed from above, whereas in most sea urchin spermatozoa yawing was counterclockwise. Under the lower surface of a coverslip, the direction of yaw of golden hamster or of sea urchin spermatozoa was reversed. Most golden hamster spermatozoa rolled counterclockwise as seen from the anterior end, whereas all examined sea urchin spermatozoa rolled clockwise relative to the observer. On the basis of quantitative analysis of the proportion of spermatozoa rolling (or yawing) clockwise to those rolling (or yawing) counterclockwise, a close relationship between the direction of rolling motion and that of yawing motion was shown for both golden hamster and sea urchin spermatozoa.

【 授权许可】

Unknown