夜间人工光对两个小鸟的基底发热和肠道微生物群的影响
Ruiping Xu1, Chen Gu1, Xinxing Wang1
1School of Life Sciences, State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, China.
The Journal of experimental biology
|June 9, 2025
概括
夜间的人工光 (ALAN) 对鸟类的新陈代谢有不同的影响. 斑马鱼的基本代谢率降低,肠道微生物群发生变化,与孟加拉鱼不同,表明对光污染的物种特异反应.
科学领域:
- 环境科学 环境科学
- 动物生理学 动物生理学
- 微生物学 微生物学
背景情况:
- 夜间的人工光 (ALAN) 是影响动物生理学的日益严重的污染物.
- 了解对ALAN的特定物种代谢反应至关重要,但尚未得到充分研究.
研究的目的:
- 研究ALAN对斑马和孟加拉基底热生成的影响.
- 检查表型,分子和肠道微生物群的变化,以应对ALAN.
主要方法:
- 两种鸟类暴露在5lxALAN中4周.
- 评估的能源预算,基础代谢率 (BMR),血清激素水平,发热基因表达和肠道微生物群.
主要成果:
- 在斑马中,ALAN降低了BMR和三甲氨酸 (T3),损害了发热.
- 孟加拉飞在BMR或T3水平上没有显著变化.
- 在斑马中,ALAN降低了肠道微生物群的α-多样性,扰乱了发热和昼夜调节.
结论:
- 斑马和孟加拉表现出明显的热能反应ALAN.
- 艾伦改变了肠道微生物群的组成,影响了宿主微生物群相互作用,基底热生成和能量代谢.
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