Distributional changes in branchial chloride cells during freshwater adaptation in Japanese sea bass Lateolabrax japonicus
Distributional changes in branchial chloride cells during freshwater adaptation in Japanese sea bass Lateolabrax japonicus
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DOI：
10.2108/zsj.16.43
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发表时间：
1999-02-01
影响因子：
0.9
通讯作者：
Tanaka, M
中科院分区：
文献类型：
--
作者：
Hirai, N;Tagawa, M;Tanaka, M
研究了鲈鱼幼鱼在向低盐度生境迁移过程中鳃氯细胞的分布变化。用Na ~+，K ~+-ATP酶特异性抗血清对氯细胞进行免疫细胞化学鉴定。在鱼饲养在SW作为对照，鳃氯细胞只局限于在细丝和lamadium缺席。当鲈鱼从SW转移到FW，氯细胞出现在鳃板，开始在近端部分的板层，然后蔓延到板层上皮。FW移植后第7天和第15天，板层上氯细胞较多，丝状氯细胞数量减少。这些结果表明，在日本海鲈鱼青少年，在鳃片氯细胞是重要的FW适应，和板层氯细胞起源于细丝和迁移到lamadium FW适应。
Distributional changes in branchial chloride cells were examined in Japanese sea bass (Lateolabrax japonicus) juveniles transferred from seawater (SW) to fresh water (FW) during their migration season toward low salinity habitat in nature. Chloride cells were identified by immunocytochemistry with a specific antiserum for Na+,K+-ATPase. In fish reared in SW as controls, branchial chloride cells were localized exclusively in the filaments and absent in the lamellae. When sea bass were transferred from SW to FW, chloride cells emerged in gill lamellae, starting at the proximal part of the lamellae and thereafter spread over the lamellar epithelium. On 7th and 15th days after FW transfer, chloride cells were mostly found on the lamellae, whereas the number of filament chloride cells was decreased. These results suggest that, in Japanese sea bass juveniles, chloride cells in the gill lamellae are important in FW adaptation, and that lamellar chloride cells originated from the filaments and migrated to the lamellae during FW adaptation.