您的位置：首页 > 论文页面
大绒鼠代谢率与器官的关系
发表时间：2010-04-15 浏览量：1560 下载量：516
| 全部作者： | 朱万龙，王睿，肖彩虹，贾婷，练硝，王政昆 |
| 作者单位： | 云南师范大学生命科学学院，生物能源持续开发利用教育部工程研究中心 |
| 摘 要： | 测定野生大绒鼠(Eothenomys miletus)的基础代谢率（basal metabolic rate，BMR）和冷诱导的最大代谢率(maximum metabolic rate，MMR)，分析动物体内11种器官或组织的大小与代谢率的关系。大绒鼠的BMR为77.99 mL O2/h，MMR为252.97 mL O2/h. 残差分析结果表明：基础代谢率并不与任何一种器官或组织相关, 而MMR与肾脏湿重(n=20, R=-0.634, P=0.032)和消化道全长(n=20, R=-0.682, P=0.013)显著相关，表明体内器官重量的差别并不是造成种内BMR差别的原因；体内存在着与MMR相关的“代谢机器”，消化系统是这一代谢机器的重要组成部分，但代谢机器的大小并不能通过BMR反映出来。BMR与MMR不相关，因此不支持“较高的BMR能够产生较高的非基础代谢率（MMR等）”的假设。 |
| 关 键 词： | 生态学；身体组成；开放式呼吸仪；大绒鼠 |
| Title： | Relationships between metabolic rates and body composition in Eothenomys miletus |
| Author： | ZHU Wanlong, WANG Rui, XIAO Caihong, JIA Ting, LIAN Xiao, WANG Zhengkun |
| Organization： | Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, School of Life Sciences, Yunnan Normal University |
| Abstract： | In this paper, basal metabolic rate (BMR) and cold induced maximum metabolic rate (MMR) in 20 wild Eothenomys miletus were measured. Then the E. miletus were dissected and 11 body parts were weighed. The BMR was 77.99 mL O2/h and the MMR was 252.79 mL O2/h (mean body mass was 39.56 g). The relationship between residual variations of BMR, MMR and 11 body parts were analyzed, and it was found that none of the variations in body components could be linked to the variation in BMR, however the kidney wet mass and total digestive tract length were highly correlated with MMR (n=20, R=-0.634, P=0.032 and n=20, R=-0.682, P=0.013, separately). These data indicate that in E. miletus variation in BMR is not caused by the variation in the mass of the body parts that we examined. A metabolic mechanism to generate high MMR exists in which the small intestine plays the major part, but the size of this metabolic machinery is not reflected by BMR. The correlation between variation in BMR and variation in MMR was not significant. Therefore, the results do not support the hypothesis that BMR variation reflects the evolution of metabolic machinery to generate high nonbasal metabolic rates during energetically demanding periods such as cold exposure. |
| Key words： | ecology; body composition; open respirometer; Eothenomys miletus |
| 发表期数： | 2010年4月第7期 |
| 引用格式： | 朱万龙，王睿，肖彩虹，等. 大绒鼠代谢率与器官的关系[J]. 中国科技论文在线精品论文，2010，3（7）：718-722. |
1
评论数 0请您登录
暂无评论
下载全文
多维论文