| 摘要: |
| 用光镜观察了北方山溪鲵(Batrachuperus tibetanus)幼体和成体鼻腔的组织结构。结果显示,北方山溪鲵幼体和成体的嗅上皮中均存在Bowman′s腺,鼻腔外侧存在犁鼻器。山溪鲵属于有尾目中最原始的类群,为终生水栖型。说明在四足动物从水生到陆生的演化过程中,嗅黏膜中Bowman′s腺的出现与陆生环境没有直接关系。山溪鲵具有犁鼻器,说明在水生型的原始有尾两栖动物已经具有犁鼻器,犁鼻器在种系发生上是从水生的四足动物出现的。 |
| 关键词: 北方山溪鲵 嗅器 犁鼻器 |
| DOI： |
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| 基金项目:陕西省自然科学基金项目（2001 SM26） |
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| Histology of olfactory organ in stream salamander Batrachuperus tibetanus |
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| Abstract: |
| The nasal structures of larva and adult Batrachuperus tibetanus，the primitive salamander and stream dweller,were observed by light microscope. The results showed that Bowman′s glands were found under the olfactory epithelium,and the vomeronasal organ was present in larvae and adult of B.tibetanus,besides it was concluded that the appearance of Bowman′s glands had no relationship with the landing of tetrapod.Vomeronasal organ of B.tibetanus suggested that the vomeronasal organ appeared in the primitive tailed amphibian,and further confirmed that the phylogeny of vomeronasal organ began with aquatic tetrapod . |
| Key words: Batrachuperus tibetanus,olfactory organ,vomeronasal organ |
