半滑舌鳎口咽腔味觉器官的形态、分布与功能之间的关系  

The relation between morphology,distribution and function of the oropharyngeal cavity gustatory organ of the tongue sole Cynoglossus semilaevis

作　　者：王新安[1] 马爱军[1] 

机构地区：[1]中国水产科学研究院黄海水产研究所农业部海洋渔业资源可持续利用重点开放实验室,山东青岛266071

出　　处：《水产学报》2008年第1期32-38,共7页Journal of Fisheries of China

基　　金：农业公益性行业科研专项(nyhyzx07-406);基本科研业务费专项资金资助项目;青岛市自然基金项目(05-2-JC-59);"泰山学者"建设工程专项经费资助

摘　　要：为探讨半滑舌鳎口咽腔味蕾在捕食行为中的作用及其功能形态学关系,应用扫描电镜观察和行为学实验方法对半滑舌鳎口咽腔味蕾的形态、分布与功能之间的关系进行了研究。扫描电镜观察发现:半滑舌鳎口咽腔味蕾分布比较集中,主要位于上颌前部吻勾内表面及舌上表面前、中区,吻勾内表面味蕾为Ⅰ型味蕾,舌上表面味蕾主要由Ⅱ型味蕾组成;行为学实验发现:半滑舌鳎吻勾内表面和舌表面的味蕾对食物味道和软硬度均非常敏感,仅吞食具有一定味道和软硬度的适口性食物。扫描电镜和行为学实验的结果表明:半滑舌鳎口腔内的Ⅰ型和Ⅱ型味蕾都具有机械感觉和化学感觉的功能。同时探讨了半滑舌鳎口腔味蕾形态及分布对捕食习性的适应意义。To research the role of the oropharyngeal cavity gustatory organ of Cynoglossus semilaevi in the feeding behavior and the relation between morphology and function of the gustatory organ, the relations between morphology, distribution and function of the oropharyngeal cavity gustatory organ of C. semilaevi were investigated by using scanning electron microscopic and behavioural experiments methods. Scanning electron microscopic studies revealed that the distribution of the gustatory organ is comparatively concentrative, and Type I taste buds were located on the inner surface of the snout tip while those of Type Ⅱ were mainly found on the upper surface of both the front and the central part of the tongue. Behavioral experiments showed that both Type I and Type Ⅱ taaste buds on the inner surface of the snout tip and on the upper surface of the tongue were sensitive to both chemical and mechanical stimuli, and the texture of the food is as important as its chemical nature to the fish. It is suggested that Type I and Type Ⅱ taste buds do have the function of mechanoreception as well as chemoreception. In addition, the present paper also indicated that the morphology and distribution of the oropharyngeal cavity gustatory organ of C. semilaevi are adaptations to its predatory feeding habit.

关 键 词：半滑舌鳎 味觉器官 形态 分布 功能 

分 类 号：S971.4[农业科学—捕捞与储运]