大陆采样揭示了Heuchera的核心细菌和环境驱动的真菌叶子内细胞
Dexcem J Pantinople1, Reagan Conner1, Stephanie Sutton-Dauber1
1Department of Biological Sciences, 295 Lee Boulevard, Mississippi, 39762, Mississippi State, USA.
American journal of botany
|October 25, 2024
概括
叶子内植物群落是由不同的因素塑造的:宿主遗传学影响细菌,而地理驱动真菌组成. 降水等环境因素也在植物叶子内的微生物多样性中发挥作用.
科学领域:
- 微生物生态学 微生物生态学
- 植物生物学 植物生物学
- 生态生态学 生态生态学
背景情况:
- 植物内的植物微生物相互作用是多样化的,从相互的到寄生虫的.
- 与根内菌相比,影响叶内菌群落的因素不太清楚.
- 这项研究调查了内叶微生物社区聚集的大规模驱动因素.
研究的目的:
- 测试假设,非生物环境和宿主类基因主要驱动叶子内生菌社区成员的假设.
- 评估叶内多样性的大规模空间和植物遗传模式.
- 为了比较细菌和真菌内细胞群体的驱动因素.
主要方法:
- 在北美各地对Heuchera (Saxifragaceae) 属中的细菌 (16S) 和真菌 (ITS) 社区进行测序.
- 分析了161个种群,代表32个物种和品种.
- 微生物多样性与环境预测因素 (度,海拔,温度,降水,土壤参数) 的相关性.
主要成果:
- 细菌和真菌内细胞的组装模式显著不同.
- 宿主系系是细菌群落的重要预测因素.
- 地理距离是真菌群体组成的主要驱动因素,一些真菌对干旱和降雨做出反应.
结论:
- 宿主基因和环境因素显著影响叶子内生菌群落,但它们的相对重要性在细菌和真菌之间有所不同.
- 与根内菌不同,这种系统中的叶内菌与土壤pH或其他土壤因素没有关系.
- 这项研究增强了对叶子微生物群中的大规模多样性模式和社区组成驱动因素的理解.
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