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[生态特性不同的鲟鱼物种对高渗介质适应性的组织生理学分析]

[Histophysiological analysis of adaptation of ecologically different species of sturgeons to hypertonic medium].

作者信息

Kraiushkina L S, Moiseenko S N, Bukovskaia O S, Golubchikova V I

出版信息

Arkh Anat Gistol Embriol. 1977 Sep;73(9):62-9.

PMID:597063
Abstract

In saplings of Acipensar güldenstädti Brandt while adapting to sea water with salinity of 12.5%, the main functional changes in the chloride cells of the branchiae, the thyroid gland and interrenal tissue occur within the first 12 hours. During this period, concentration of osmotically active substances in blood serum increases (the first stage). Adaptive decrease of this concentration (the second stage) takes place after activation of the endocrine glands and transition of the chloride cells into excretory state that stipulates, in fact, the change of osmoregulatory type in fish for the transition from fresh water into hypertonic medium. After activation, the endocrine glands return to moderately active state. Adaptation of Acipenser baeri stenorrhynchus var. baicalensis to sea water with salinity of 12.1% produces isoosmotic changes in blood serum to the external medium.

摘要

在施氏鲟幼鱼适应盐度为12.5%的海水过程中,鳃、甲状腺和肾上腺组织的氯细胞的主要功能变化发生在最初12小时内。在此期间,血清中渗透活性物质的浓度增加(第一阶段)。在激活内分泌腺并使氯细胞转变为排泄状态后,该浓度适应性降低(第二阶段),这实际上规定了鱼类从淡水过渡到高渗介质时渗透调节类型的变化。激活后,内分泌腺恢复到中等活跃状态。贝氏鲟达氏变种适应盐度为12.1%的海水会使血清与外部介质产生等渗变化。

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