肠道微生物群落在温暖气候下有季节性变化 在冬季冬眠
Xiaming Zhu1,2, Neng Jiang1, Tingye Mai3
1Herpetological Research Center, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China.
Microorganisms
|October 26, 2024
概括
冬眠显示季节性肠道微生物变化,增加了Verrucomicrobia和降低了Firmicutes/Bacteroidetes比率,以帮助冬季生存. 非冬眠的缺乏这些肠道微生物群的转移.
科学领域:
- 类学 类学 类学 类学
- 微生物学 微生物学
- 生态生态学 生态生态学
背景情况:
- 冬眠对于许多面临冬季稀缺的动物来说是一个至关重要的生存策略.
- 温暖气候的物种很少冬眠,这使得它们的适应机制不太了解.
- 肠道微生物群在宿主生理学和适应方面发挥着重要作用.
研究的目的:
- 为了研究冬眠和非冬眠的温暖气候的肠道微生物群的季节性变化.
- 为了比较冬眠和非冬眠物种之间的肠道微生物组成.
- 了解肠道微生物群在冬眠适应冬季禁食的作用.
主要方法:
- 在夏季和冬季从两个物种 (冬眠的*Leiolepis reevesii*和非冬眠的*Eutropis multifasciata*) 收集大肠道微生物样本.
- 分析和比较肠道微生物群使用16S rRNA基因安普利康序列.
- 评估季节性变化和微生物社区结构的差异.
主要成果:
- 在冬眠的蝶 (*L. reevesii*) 中,肠道微生物群因季节性变化而变化,但在非冬眠的太阳 (*E. multifasciata*) 中没有变化.
- 冬眠的Firmicutes/Bacteroidetes比率下降,冬季禁食期间Verrucomicrobia增加.
- 蝶的万食性食与能够降解植物纤维的Firmicutes的增加相关.
结论:
- 肠道微生物群落在冬眠的温暖气候中具有季节性活力.
- 冬眠的特定微生物转移 (例如,增加Verrucomicrobia) 可能通过利用宿主衍生营养来支持冬季禁食期间的生存.
- 肠道微生物群是食适应和季节性生存策略的组成部分.
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