树叶球殖民细菌在原生体微生物群中持续存在
Stephen J Taerum1, Ravikumar R Patel1, Justin E Alamo1
1Department of Plant Pathology and Ecology, The Connecticut Agricultural Experiment Station, New Haven, Connecticut, USA.
mSphere
|April 30, 2025
概括
掠食性土壤原生虫携带细菌群落,可以殖民植物根. 这些与原生菌相关的细菌可以影响植物生长,突出显示它们在树枝球微生物群和可持续农业中的作用.
科学领域:
- 微生物学 微生物学
- 植物科学 植物科学
- 生态生态学 生态生态学
背景情况:
- 土壤原生虫是多样化的掠食者,影响着根球细菌.
- 原生体拥有自己的细菌微生物组.
- 之前的研究表明,用原生体注射的植物具有与原生体注射体相似的根球细菌.
研究的目的:
- 为了研究原生菌微生物如何影响树根球.
- 分析与八种不同的根球原生菌分离物相关的细菌.
- 为了比较原生体培养微生物与玉米根球社区的注射后微生物群.
主要方法:
- 在两年内培养了八种不同的根球原生体隔离物.
- 在原始文化中对细菌群落进行了测序和分析.
- 在对原生菌接种六周后,将原生菌相关的细菌与玉米根球细菌群体进行了比较.
主要成果:
- 在玉米根球中,原生体注射丰富了13种细菌安普利康序列变体 (ASV),占社区的10%左右.
- 平均47%的原生体微生物组在树根球中非常丰富或丰富.
- 在八种原始文化中,有三种对根生物质产生了积极影响,但一种混合物没有,表明了取决于环境的效应.
- 与原生菌相关的细菌对培养中的原生菌生长表现出各种影响.
结论:
- 即使在经过长期实验室培养后,树叶球原体培养物也会拥有能够殖民玉米树叶球的宿主细菌.
- 不同的细菌在原生体培养中持续存在,这表明原生体可能支持它们在土壤生态系统中的生存.
- 这些发现确定了与原生体相关的关键根球殖民细菌,在可持续农业中具有潜在的应用.
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