| 李加儿,曹守花,区又君,刘汝建.2014.鲻鱼嗅囊组织形态结构观察及功能探讨.动物学杂志,49(3):399-406. |
| 鲻鱼嗅囊组织形态结构观察及功能探讨 |
| Morphological Structure and Function Analysis of Olfactory Organ in Mugil cephalus |
| 投稿时间：2013-03-11 修订日期：2014-03-05 |
| DOI：10.13859/j.cjz.201403012 |
| 中文关键词: 鲻鱼 嗅囊 组织特征 超微结构 |
| 英文关键词:Mugil cephalus olfactory sac morphology and structure light microscope transmission electron microscope |
| 基金项目:广东省科技计划项目(2007B020708005,2012A020602016), 广东省海洋渔业科技推广专项项目(A201101D02,A201200E02) |
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| 中文摘要: |
| 实验用鱼为全长（35.5~40.0 ）cm的野生鲻鱼(Mugil cephalus)，采用石蜡切片以及透射电镜技术对鲻鱼的嗅囊以及嗅板细胞进行观察。结果表明：鲻鱼的嗅觉器官由左右两个呈扁平椭球形嗅囊构成，分别由前后两个鼻孔与外界相通。嗅囊长径与眼经之比为0.80，长径与短经之比为2.09。嗅囊的嗅轴左右两边分别有垂直于嗅轴并向上倾斜排列整齐的18~25个披针形初级嗅板。嗅板由中央髓和两侧的嗅上皮两部分构成，中央髓由疏松的结缔组织和毛细血管组成。嗅上皮又分为感觉区和非感觉区，感觉区位于嗅板的内侧，具有发达纤毛，呈连续分布状态，非感觉区位于嗅板边缘，细胞纤毛较少，通过光镜和电镜的综合结果显示嗅上皮细胞大致可分为5类：基细胞，支持细胞，纤毛非感觉细胞，感觉细胞和柱状细胞。结论显示：鲻鱼应为视、嗅觉鱼类。 |
| 英文摘要: |
| Olfactory sac and olfactory lamellae cell of wild grey mullet (Mugil cephalus, 35.5-40 cm in length) are studied by technology of paraffin section and transmission electron microscope. The results show that the olfactory organ of grey mullet has two flat ellipsoidal olfactory sacs in the both side of the head. Each sac has an incurrent and an excurrent nostril interlinked with the outside world. In size, the olfactory sac is smaller than the eye and the average ratio between them is 0.8. The ratio between length and breadth of the olfactory sac is 2.09. There are 18-25 lanceolated primary olfactory lamellas in the olfactory sac which are perpendicular to left and right sides of raphe at a orderly up-inclined arrangement state. Olfactory lamella is really a composite that is composed of two layers of olfactory epithelium and a central core. The central core is located at the central part of the olfactory lamella, which is composed of loose connective tissue and large amount of capillaries. The olfactory epithelium is divided into sensory area and non-sensory area.The inside of the olfactory lamella is the olfactory sensory area, which have developed cilia in a continuous distribution state. The non-sensory area has fewer cilia that located in the edge of olfactory lamella. By means of light microscope and transmission electron microscope, the results show that the cells of olfactory epithelium can be broadly divided into five categories: basal cells , supporting cells, ciliated non-sensory cells, ciliated receptor cell and rod cells. Conclusion is that the grey mullet is a fish that both good at sight and smell. |
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