高原皮卡斯 (Ochotona curzoniae) 肠道微生物群的年龄特定组成和预测功能
Hui Han1,2, Yongbing Yang2, Xiaojia Zhu3
1Key Laboratory of Biodiversity and Environment on the Qinghai-Tibetan Plateau, Ministry of Education, Xizang University, Lhasa 850000, China.
Biology
|January 28, 2026
概括
成人和青少年高原皮卡共享类似的肠道微生物和功能. 年轻人显示某些细菌的水平较低,这表明他们更喜欢低纤维饮食,尽管整体微生物成分保持一致.
科学领域:
- 微生物生态学 微生物生态学
- 阿尔卑斯山的生态系统
- 动物生理学 动物生理学
背景情况:
- 肠道微生物对于宿主代谢和适应至关重要.
- 高原皮卡是关键的高山物种,但影响其肠道微生物群的内在因素尚未得到充分研究.
- 以前的研究集中在影响高原皮卡肠道微生物的外部因素上.
研究的目的:
- 为了比较成人和青少年高原皮卡之间的肠道微生物组成和预测功能.
- 为了研究内在因素 (年龄) 对平原皮卡肠道微生物群的影响.
- 根据微生物特征,识别潜在的饮食差异.
主要方法:
- 活捕获高原皮卡,用于采样.
- 眼含量的元基因组测序.眼含量.
- 微生物组成和预测功能的比较分析 (KEGG,CAZy).
主要成果:
- 在这两个群体中,Bacillota 和 Bacteroidete 是主要的类.
- 核心肠道微生物属是一致的,但 * Oscillospira * 在幼虫中不那么丰富.
- 在整体微生物多样性,KEGG1级通路或CAZy类中没有发现显著差异.
- 青少年在辅因子/维生素和特类的途径中表现出更高的相对丰度;成年人具有更高的能量代谢途径.
结论:
- 肠道微生物的组成和预测的功能的微生物在很大程度上是成人和青少年平原皮卡之间相似的.
- 特定细菌丰度的差异表明可能与年龄相关的饮食变化 (例如,青少年的纤维摄入量较低).
- 对于健康管理框架,需要对更广泛的规模和跨物种比较进行进一步的研究.
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