不同盐度下鲻鱼幼鱼鳃和肾组织结构变化  

Structural changes in gill and kidney of juvenile grey mullet under different salinity

作　　者：于娜[1,2] 李加儿[1] 区又君[1] 王永翠[1,2] 苏慧[1,2] 

机构地区：[1]农业部南海渔业资源开发利用重点实验室,中国水产科学研究院南海水产研究所,广州510300 [2]上海海洋大学水产与生命学院,上海201306

出　　处：《生态科学》2012年第4期424-428,共5页Ecological Science

基　　金：广东省科技计划项目(2007B020708005)

摘　　要：采用组织切片技术,研究了不同盐度下鲻鱼幼鱼鳃和肾的显微结构变化,探讨这些变化与渗透压调节的关系。结果显示,随着盐度升高,鳃小片逐渐变窄,间距变小,鳃丝和鳃小片上泌氯细胞数量增多,体积变大。泌氯细胞集中分布在鳃小片基部,且向两侧扩布。高盐度组的S40组,鳃小片上皮出现分离脱落现象。随着盐度梯度的升高,肾小球及各级肾小管的结构上出现了不同程度的萎缩现象。The gill and kidney structure of juvenile grey mullet Mugil cephalus was observed under different salinities by using the technology of histological photomicrography. The relationships between structural changes and osmitic regulation were also discussed. The results showed that as the salinity increased, gill lamellae gradually became narrower, and the spacing became smaller. A marked increase in the number and size of chloride cells was also observed. On the lamellae of these fish, chloride cells were generally centralizing to the base of lamellae, and spreading to both sides. At the high-salt group （S40）, gill lamellae epithelial appeared to be separation and off. Structures of glomerular and tubular at all levels were shriveled at varying degrees as salinity increased.

关 键 词：鲻鱼幼鱼 鳃 肾 盐度 

分 类 号：Q473[生物学—生理学] Q959.483