来自不同海域的海水对单独的胃肠道微生物和代谢物的影响
Zhaolong Li1, Ling Ke2, Chenyu Huang1
1Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China.
Microorganisms
|April 26, 2025
概括
海水的pH值和营养水平显著影响鱼的肠道微生物. 高pH值和营养过载会破坏有益的细菌,促进有害的病原体和改变肠道代谢物.
科学领域:
- 海洋微生物学与生态学
- 胃肠道健康 胃肠道健康
- 一个人的水产养殖 Abalone水产养殖
背景情况:
- 海洋环境在海水特性 (温度,盐度,pH值,营养) 中呈现区域差异.
- 这些变异对阿巴龙胃肠道微生物群和代谢物的影响尚不清楚.
研究的目的:
- 研究海水营养素,pH值和肠生态系统之间的相互作用.
- 来自三个不同的海洋地区的鱼肠道微生物群和代谢物概况进行比较.
主要方法:
- 来自平坦 (PT),小浦 (XP) 和连江 (LJ) 地区的 abalone肠道微生物群和代谢物的比较分析.
- 海水的特征测量 (营养素,盐度,pH值).
- 微生物社区概况 (16S rRNA测序) 和代谢分析 (LC-MS).
主要成果:
- 在不同地区观察到不同的海水特征,与平/夏普相比,江的营养成分较低,盐度较高/pH值较低.
- 微生物的多样性和占主导地位的品种有很大的差异,江偏爱Psychrilyobacter/Bradyrhizobium,平坦菌和夏普.
- 代谢分析揭示了127种差异化代谢物,富含硫中继和托代谢途径. 较低的pH与有益的Psychrilyobacter相关,而较高的pH和营养过载 (NH3-N,TP) 促进了致病性Vibrio和Mycoplasma.
结论:
- 海水的pH值和营养成分是 abalone胃肠道微生物结构和功能的关键驱动因素.
- 升高的pH值 (>8.0) 和营养丰富会破坏微生物的共生,使病原细菌比有益细菌更受欢迎.
- 了解这些环境-微生物-代谢物相互作用对于鱼健康管理和水产养殖至关重要.
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