Sexual dimorphism in the gills of the spawning river lamprey, Lampetra fluviatilis L.
Sexual dimorphism in the gills of the spawning river lamprey, Lampetra fluviatilis L.
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产卵河七鳃鳗 (Lampetra Fluviatilis L.) 鳃中的性别二态性。
DOI：
10.1007/bf00227026
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发表时间：
1977
影响因子：
3.6
通讯作者：
R. Morris
中科院分区：
文献类型：
--
作者：
A. D. Pickering;R. Morris
在性成熟的雄性七鳃鳗鳃的血小板间区发现了两种富含线粒体的细胞。1型细胞（以前称为“雄性腺细胞”）表现出与离子转运细胞相同的一些超微结构特征，但很容易通过具有电子发光中心的大脂质结构来区分。发现2型细胞与动物生活史中其他窄盐淡水阶段发现的离子摄取细胞相同。在性成熟的雌性中，只有2型细胞被阳性鉴定。这种性别二态性在鳃结构中讨论了与七鳃鱼鳃的可能功能有关的问题，特别提到了离子调节。
Two types of mitochondria-rich cells were found in the interplatelet areas of the gills of sexually mature, male river lampreys. Type 1 cells (previously referred to as “male glandular cells”) showed some ultrastructural characteristics in common with ion-transporting cells but were readily distinguished by large lipid structures with electron-lucent centres. Type 2 cells were found to be identical to the presumed ion-uptake cells found during other stenohaline freshwater phases of the animal's life history. In the sexually mature female, only Type 2 cells were positively identified. This sexual dimorphism in gill structure is discussed in relation to the possible functions of the lamprey gill, with particular reference to ionic regulation.