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通过根的选择性效应形成的与根相关的细菌微生物组有利于植物稳定由Athyrium wardii (Hook.)

Yunhong Zhang¹, Juan Zhan², Chuang Ma²

¹CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; College of Resources, Sichuan Agricultural University, 211 Huimin Road, Chengdu 611130, China.

Ecotoxicology and environmental safety

|November 28, 2023

概括

矿山尾矿中的Athyrium wardii的根微生物组是由植物构成的,而不是污染物水平. 根系球和内层中的特定细菌有助于植物生存和金属积累.

科学领域:

环境微生物学环境微生物学
植物与微生物的相互作用
生物地质化学生物地质化学

背景情况:

与根系相关的微生物组对于植物生长和金属积累至关重要,特别是在受污染的环境中.
(Athyrium wardii) 是一种在矿尾矿中发现的金属积累植物,但其根微生物组的了解很少.
了解这种微生物群对于其在植物稳定中的作用至关重要.

研究的目的:

调查Athyrium wardii根相关细菌微生物组的结构和功能变异.
为了确定污染水平对矿山尾矿中的微生物组合的影响.
阐明微生物群在植物适应和金属积累中的作用.

主要方法:

在不同污染的-矿尾矿中对Athyrium wardii的实地研究.
细菌微生物组结构和功能在根区 (树球,树,内层) 的分析.
微生物群落组成,共发生网络和功能基因配置文件的生物信息分析.

主要成果:

微生物组结构在根区之间差异很大,污染物水平的影响较小.
微生物共同存在的网络在树叶球和树叶中比在内层更复杂.
主导类包括蛋白质细菌,chloroflexi,actinobacteria,蓝藻细菌和acidobacteriota;特定的属 (Crossiella,Bradyrhizobium) 和蓝藻细菌得到了丰富.
代谢和膜载体 (ABC载体) 的功能基因丰富,这表明它们在金属耐受性和生物可用性中的作用.

结论:

根微生物组组合的Athyrium wardii是非随机的,并受到根选择效应的强烈影响.
草圈和内菌微生物在植物适应恶劣的矿山环境以及金属耐受性/积累方面发挥着至关重要的作用.
这项研究强调了根系相关微生物在受污染的矿场植物稳定策略中的潜力.

关键词:

亚修rium wardii 的发音是什么意思这是一座-矿.一个微生物组合.植物稳定植物稳定根部的部分是根部的部分.

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