摘要
中缅树鼩(Tupaia belangeri)为东洋界特有小型哺乳动物。本研究测定了中缅树鼩冷驯化实验组(7d、14d、21d、28d)与对照组(0d)中肝线粒体蛋白含量、呼吸状态Ⅲ和状态Ⅳ的变化,探讨中缅树鼩对不同冷环境的适应情况以及肝产热的机理。结果表明,在冷驯化条件下,中缅树鼩产热显著增加,与对照组相比,实验组肝总蛋白含量、肝线粒体蛋白含量、呼吸状态Ⅲ和状态Ⅳ有着显著的提高,在28d后分别增加了39.9%、39.3%、84.9%、181.1%,因此,肝在中缅树鼩冷适应产热过程中具有重要的作用。同时,从生理生态方面为树鼩的岛屿起源学说提供依据。
The Tree Shrew （ Tupaia belangeri ） is a unique study their cold adaptive capacity in cold environment, the species of small mammals in the Oriental realm. In order to Ⅲ state and the Ⅳ state of mitochondrial respiration, the protein content of mitochondria of liver were measured under the condition of being cold exposure （5 ± 1 ℃, 12L： 12D） during different times [0 d（control）, 7 d, 14 d, 21 d, 28 d]. Compared with the controls, the total protein, mitochondrial protein, and the Ⅲ state and the IV state of mitochondrial respiration of liver greatly increased with prolonged cold exposure （ increased 39.9 % , 39.3 % , 84.9 % , 181.1% , respectively, after 28 d）. The result indicates that the liver plays a key role of the adaptive thermogenesis during cold exposure in the T. belangeri. The physiological ecology evidence is also given to the island origin of T. belangeri.
出处
《动物学杂志》
CAS
CSCD
北大核心
2009年第4期47-57,共11页
Chinese Journal of Zoology
基金
国家自然科学基金项目(No.30560026)
云南科技强省重点项目(No.2007C000Z1)
关键词
中缅树鼩
冷适应
肝
产热特征
岛屿起源
Tupaia belangeri
Cold adaptation
Liver
Thermogenesis characteristics
Island origin
