Hi-C元基因组测序揭示了土壤菌体与宿主相互作用
Ruonan Wu1, Michelle R Davison1, William C Nelson1
1Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, USA.
Nature communications
|November 23, 2023
概括
这项研究使用染色体构造捕获 (Hi-C) 来识别土壤菌体宿主. 土壤干燥增加了溶解性感染,改变了菌体宿主范围,影响了细菌群落.
科学领域:
- 微生物学 微生物学
- 土壤生态学 土壤生态学
- 病毒学 病毒学
背景情况:
- 菌体在土壤环境中无处不在,但大多数仍然没有特征.
- 了解菌体与宿主之间的相互作用对于破译土壤微生物社区动态至关重要.
研究的目的:
- 使用染色体构造捕获 (Hi-C) 在土壤中直接捕获和表征菌体与宿主关系.
- 调查土壤干燥对菌体与宿主相互作用和病毒活性的影响.
主要方法:
- 应用高通量染色体构造捕获 (Hi-C) 来识别直接的菌体与宿主DNA相互作用.
- 细菌社区共发生网络的分析,以评估菌体的影响.
- 在不同的土壤湿度条件下监测每宿主 (VPH) 病毒副本和病毒转录活性.
主要成果:
- 在土壤中确定了特定的菌体与宿主关系.
- 在土壤干燥后,观察到 lysogenic 感染的增加和宿主范围的改变.
- 发现VPH和宿主丰度之间存在负相关性,这表明菌感染会影响宿主群体大小.
结论:
- 菌体感染显著影响土壤细菌社区结构和相互作用.
- 土壤干燥改变了化和溶性菌体周期之间的平衡.
- 这项研究提供了在土壤生态系统中菌体介导的细菌群动态的直接证据.
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