在碳水化合物新陈代谢中蜂蜜和吉利亚梅拉的协同作用增强了寒冷适应中的宿主热生成
Min Tang1,2, Chenyi Li3,4, Xinwei Ge5
1State Key Laboratory of Agricultural and Forestry Biosecurity, MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, China. min.tang@xjtlu.edu.cn.
NPJ biofilms and microbiomes
|August 24, 2025
概括
蜜蜂在肠道细菌的帮助下适应寒冷. 这种细菌增强宿主能量生产和脂肪储存, 对于寒冷气候的生存至关重要.
科学领域:
- 微生物学
- 进化生物学
- 代谢学
背景情况:
- 肠道共生体在宿主适应中的作用尚不清楚.
- 蜜蜂的肠道细菌及其宿主物种在不同的气候中共同多样化.
研究的目的:
- 研究肠道共生物如何在不同气候下对蜂群的适应.
- 确定特定的肠道细菌及其帮助蜜蜂适应寒冷的代谢功能.
主要方法:
- 蜜蜂物种及其肠道细菌的比较基因组学.
- 在不同适应气候的蜜蜂中识别主要肠道细菌的基因组分析.
- 没有细菌的蜜蜂殖民实验.
- 糖类代谢学分析后肠代谢物水平.
- 在体外细菌生长实验.
主要成果:
- 与热带物种相比,适应寒冷的蜜蜂 (Apis mellifera,A. cerana) 具有更强的生产葡萄糖,酸盐,脂质和葡萄糖酸盐的基因组能力.
- 在适应寒冷的蜜蜂中, 肠道细菌Gilliamella显著增强.
- 经过Gilliamella殖民的没有细菌的蜜蜂在暴露在寒冷环境中时, 活动,体温和脂肪储存都增加了.
- 吉利亚梅拉殖民蜂的后肠葡萄糖水平较高,并且表现出一种涉及葡萄糖,酸盐和酸盐利用的代谢协同作用.
- 吉利亚梅拉将酸盐转化为D-xylulose-5P,促进脂质生成并最大限度地减少与宿主直接的葡萄糖竞争.
结论:
- 蜜蜂和它们的肠道共生体Gilliamella之间存在协调的代谢协同作用,增强宿主适应寒冷的能量.
- 通过特定的代谢途径,吉利亚梅拉在促进宿主适应寒冷环境方面发挥着至关重要的作用.
- 了解这些宿主-共生体相互作用,可以了解昆虫的适应演变.
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