Rouse G W, Pickles J O
Department of Physiology and Pharmacology, University of Queensland, Australia.
Proc Biol Sci. 1991 Nov 22;246(1316):123-8. doi: 10.1098/rspb.1991.0133.
Lateral line neuromasts of the bullseye Parapriacanthus ransonetti and the cardinal fish Apogon cyanosoma were examined by scanning electron microscopy. Neuromasts showed large numbers of degenerating hair cells and immature hair cells, suggesting a high degree of hair cell turnover. New hair cells were mainly produced in pairs (fewer than 5% appear singly), the two cells of a pair having opposite but parallel orientations of their mechanosensitive axes. It is suggested that each pair results, directly or indirectly, from a single mitosis. The results further suggest that the axis of mitosis is one of the factors which determine the direction of the hair cell axis of mechanosensitivity.
通过扫描电子显微镜检查了靶标准雀鲷（Parapriacanthus ransonetti）和金眼鲷（Apogon cyanosoma）的侧线神经丘。神经丘显示出大量退化的毛细胞和未成熟的毛细胞，表明毛细胞的更新程度很高。新的毛细胞主要成对产生（单个出现的少于5%），一对中的两个细胞其机械敏感轴方向相反但平行。有人认为，每一对直接或间接地源自一次有丝分裂。结果还表明，有丝分裂轴是决定毛细胞机械敏感轴方向的因素之一。
