Development of free and canal neuromasts and their directions of maximum sensitivity in the larvae of ayu,Plecoglossus altivelis
Development of free and canal neuromasts and their directions of maximum sensitivity in the larvae of ayu,Plecoglossus altivelis
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香鱼幼虫游离神经乳突和神经管神经乳突的发育及其最大敏感性方向
DOI：
10.11369/jji1950.38.411
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
H. Yoshikawa
中科院分区：
文献类型：
--
作者：
Y. Mukai;Hiroshi Kobayashi;H. Yoshikawa
本文报道了香鱼Plecoglossus altivelis幼虫游离神经乳突的形态学变化。在新孵化的幼虫中，头部和躯干中的游离神经乳突已经可以识别。在仔鱼生长过程中，游离神经乳突的数量逐渐增多，但其感觉细胞的数量在孵化后2天基本不变。在躯干中，观察到两种类型的游离神经瘤，一种在前后方向上具有最大敏感性，另一种在背腹方向上具有最大敏感性。前者占主导地位。在头部，游离神经瘤位于眼睛和鼻子周围，它们的最大灵敏度方向形成与眼睛和鼻子同心圆相切的线。在管器官形成过程中，游离神经瘤发生了明显的变化。出壳后64 d和100 d，在头区和躯干区首次观察到管器官。随着神经管器官的形成，游离神经乳突的杯形由扁条形变为半球形。感觉细胞在管神经瘤没有不同的形态从那些在自由神经瘤。据认为，神经肥大的敏感性与壶腹的形状有密切的关系，即，自由的神经乳突适应于缓慢的水流，如在湖泊和海洋中，而运河器官中的神经乳突适应于快速的水流。
Morphological changes in free neuromasts are reported from larvae of the Ayu,Plecoglossus altivelis. In newly-hatched larvae, free neuromasts were already recognizable in both the head and trunk. During larval growth, the number of free neuromasts increased, and the number of its sensory cells 2 days after hatching was constant. In the trunk, two types of free neuromasts, one with maximum sensitivity in the antero-posterior direction and the other with maximum sensitivity in the dorso-ventral direction, were observed. The former type predominated. In the head, free neuromasts were located around the eye and nose, their directions of maximum sensitivity forming lines tangential to concentric circles about the eye and nose. Distinct changes in free neuromasts occurred during the formation of the canal organ. The canal organ was first observed in the head region 64 days after hatching and in the trunk region 100 days after hatching. Concomitant with the formation of the canal organ, the profile of the cupulae of the free neuromasts changed from a flat bar to semispherical. Sensory cells in the canal neuromasts did not differ morphologically from those in the free neuromasts. It is considered that there is a close relationship between the sensitivity of the neuromast and the shape of the cupula, i.e., that the free neuromasts are adapted to slow water flow, as in lakes and the sea, while the neuromasts in the canal organ are adapted to rapid water flow.
Eigenmannia（Teleostei，Gymnotiformes）侧线受体的发育。
DOI：
10.1159/000115929
发表时间：
1989
期刊：
Brain, behavior and evolution
影响因子：
--
作者：
Vischer,HA
通讯作者：
Vischer,HA