作为理解土壤食物网中的一般营养相互依赖的模型,生产胺的微生物
Qi Zhang1,2, Bingfeng Chen3, Zhenyan Zhang1,2
1Institute for Advanced Study, Shaoxing University, Shaoxing, PR China.
Nature communications
|January 13, 2026
概括
生产胺 (维生素B12) 的微生物对土壤健康和生态系统稳定至关重要. 这项研究确定了这些关键的微生物及其在支持宿主健康和土壤食物网中的营养转移方面的作用.
科学领域:
- 微生物学 微生物学
- 生态生态学 生态生态学
- 土壤科学 土壤科学
背景情况:
- 营养交叉养对微生物群与宿主相互作用和生态系统稳定性至关重要.
- 仅由 prokaryotes 合成的 cobamides 是必需的营养素,但它们在土壤健康中的生态作用尚未得到充分理解.
- 了解胺生产者是破译土壤食物网中营养介导的相互依赖的关键.
研究的目的:
- 在土壤环境中构建一个关于可巴胺产生的原核生物的全面数据库.
- 研究胺生产者在土壤食物网中的分布和生态作用.
- 探索胺生成微生物对宿主健康和生态系统稳定的贡献.
主要方法:
- 整合了来自1,123个采样地点的48,000多个元基因组和基因组数据集,创建了土壤胺生产者数据库 (SCP v.1.0).
- 编目了具有科巴胺生物合成潜力的基因组学上多样化的 Prokaryotes.
- 确定了宿主特定的殖民模式和动物群中可巴胺生成微生物的功能特征,包括对Enchytraeid模型的实验.
主要成果:
- SCP数据库列出了19个属和302个属的科巴胺生产者.
- 生产胺的微生物在动植物中表现出宿主特定的殖民模式,并具有多样化的功能特征.
- 在Enchytraeid模型中,这些微生物支持宿主发育,调节基因表达,并通过跨王国相互作用促进肠道稳定.
结论:
- 生产胺的微生物通过跨王国相互作用在支持宿主健康和生态系统稳定方面发挥着重要作用.
- 这些微生物在相对较高的热量水平上存在,这表明土壤食物网中营养转移的更广泛的原则.
- 这项研究为研究土壤中的营养微生物提供了框架,并推进了One Health研究.
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