PAIRED DEVELOPMENT OF HAIR-CELLS IN NEUROMASTS OF THE TELEOST LATERAL LINE

被引:47
作者
ROUSE, GW [1 ]
PICKLES, JO [1 ]
机构
[1] UNIV QUEENSLAND, DEPT PHYSIOL & PHARMACOL, VIS TOUCH & HEARING RES CTR, BRISBANE, QLD 4072, AUSTRALIA
关键词
D O I
10.1098/rspb.1991.0133
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
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.
引用
收藏
页码:123 / 128
页数:6
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