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酸核酸 (PNA) 可以增强小麦和玉米的根微生物组概况

Hussnain Mukhtar^1,2, Amanda C Easterly¹, Kaitlin B Bachle³

¹Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, USA.

Environmental microbiome

|November 22, 2025

概括

酸核酸 (PNA) 具在植物根微生物组分析中有效降低宿主DNA污染. 这些阻断剂增强了玉米和小麦中的 prokaryotic 社区检测,在 1.0 μM 度下获得最佳结果.

科学领域:

微生物学微生物学
分子生物学分子生物学
植物科学植物科学

背景情况:

宿主DNA污染,特别是细胞器DNA污染,妨碍了准确的植物微生物组概况.
酸核酸 (PNA) 是旨在减轻这种污染的分子工具.
PNA的有效性和最佳度可以因植物物种而异.

研究的目的:

为了评估线粒体和质体PNA阻断剂 (mPNA和ppNA) 在不同度的有效性.
评估PNA具对减少玉米和小麦根组织中宿主DNA放大的影响.
为了确定 PNA 在增强 prokaryotic 微生物群概况上的作用.

主要方法:

测试了mPNA和pPNA阻塞剂的五种度 (0.0-4.0μM).
分析了34个玉米和27个小麦样本的根组织.
通过测序量化宿主DNA污染和 prokaryotic 社区组成.

主要成果:

在度依赖的方式中,PNA具将宿主植物污染量降低了2.4-27.2倍.
玉米样本显示出比小麦样本更明显的污染减少,特别是在较低的PNA剂量 (≤1.0μM) 时.
在超过一半的微生物群中, Prokaryotic 读数的丰度增加了,在没有引入偏差的 1.0 μM PNA 度下,最显著的收益.

结论:

全面PNA紧件在玉米和小麦根组织的PCR试验中显著减少宿主DNA放大.
应用PNA可以提高低丰富度微生物的检测,并加深微生物群的概况.
PNA具的有效性取决于度,并且特定于作物类型.

关键词:

16S rRNA 基因是16S 的基因.谷物作物谷物作物微生物组是一个微生物组.线粒体中的线粒体.在 PNA 具上,有 PNA 具.

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