Temperature, oxygen, photoperiod, and the hemoglobin system of the rainbow trout, Salmo gairdneri

Temperature, oxygen, photoperiod, and the hemoglobin system of the rainbow trout, Salmo gairdneri
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虹鳟鱼的温度、氧气、光周期和血红蛋白系统

DOI:
10.1139/z86-281
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发表时间:
1986
影响因子:
1.4
通讯作者:
A. Houston
A. Houston
中科院分区:
生物学4区
文献类型:
--
作者:
N. Tun;A. Houston

文献摘要

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对适应了三个变量的两种处理水平的八种组合的虹鳟鱼进行了血液载氧能力和血红蛋白系统组织的检查:温度(5、20°C)、氧气利用率(≤ 30%、≥ 75%饱和度)和光周期(16L:8D、8L:16D)。血红蛋白、血细胞比容和个体血红蛋白同种型丰度的增加与缺氧、昼长缩短和温度升高有关。在名义“夏季”条件下(20°C,缺氧,16L:8D),光周期影响明显被缺氧和热效应掩盖,而在“冬季”条件下(5°C,常氧,8L:16D)则相反。这个复杂的 12 元血红蛋白系统提供了在适应过程中差异同型体形成的一些证据。细胞参与仍不清楚。
Blood O2-carrying capacity and hemoglobin system organization were examined in rainbow trout acclimatized to eight combinations of two treatment levels of three variables: temperature (5, 20 °C), O2 availability (≤ 30%, ≥ 75% saturation), and photoperiod (16L:8D, 8L:16D). Increases in hemoglobin, hematocrit, and individual hemoglobin isomorph abundances were associated with hypoxia, shortened day length, and increased temperature. Under nominal "summer" conditions (20 °C, hypoxia, 16L:8D) photoperiod influence was apparently masked by hypoxic and thermal effects, with the converse being true under "winter" circumstances (5 °C, normoxia, 8L: 16D). The complex, 12-membered hemoglobin system provided some evidence of differential isomorph formation during the acclimatization process. Cellular involvements remain unclear.