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基维果葡萄树中的土壤,树根圈和根微生物组正在衰退,这是一个新兴的多因素疾病

Micol Guaschino^1,2, Marco Garello^1,2, Luca Nari³

¹Department of Agricultural, Forestry and Food Sciences (DiSAFA), University of Torino, Grugliasco, Italy.

Frontiers in microbiology

|April 5, 2024

概括

果葡萄藤衰退综合征 (KVDS) 是一种影响果产量的多因素疾病. 这项研究发现,根球微生物群中的失生症,特别是菌体Phytopythium,与KVDS的发展有关.

科学领域:

植物病理学植物病理学
微生物学微生物学
农业学是一种农业学.

背景情况:

基维果葡萄藤衰退综合征 (KVDS) 导致严重的根损伤和快速的植物崩,自2012年以来对欧洲基维果生产产生了重大影响.
该综合征的多因素性质和明确的致病因子仍然难以捉摸,需要对相关的生物和非生物因素进行全面调查.
了解受影响和健康果植物的地下微生物群落对于诊断和管理KVDS至关重要.

研究的目的:

调查与基维果根,根球和土壤相关的真菌,细菌和菌菌群体与KVDS相关.
分析土壤物理化学特性对这些微生物群落的影响及其与KVDS的关联.
确定潜在的微生物驱动因素和导致果葡萄藤衰退综合征的失生性过程.

主要方法:

从意大利西北部的健康和KVDS受影响的果场所收集了土壤,根层和根样.
进行了16S rRNA和ITS amplicon测序,以描述细菌,真菌和虫群体.
进行了土壤物理化学分析,并构建了微生物关联网络,以探索生物和非生物相互作用.

主要成果:

在患病的母体中,oomycete属 *Phytopythium* 是普遍存在的,这表明它在KVDS中的潜在作用.
细菌和真菌群体表现出高种类丰富性和与采样地点和基质的显著相关性,强调了空间变异性.
受KVDS影响的植物的树根球微生物群显示出明显的失生过程,有证据表明,在患病的树根球网络中,跨王国对碳的竞争.

结论:

根球微生物群中的失生症,特别是涉及*Phytopythium*,是与果葡萄藤衰退综合征相关的关键因素.
该研究强调了微生物群落和土壤特性综合分析对于了解KVDS等复杂植物疾病的重要性.
研究结果提供了关于KVDS多因素病因的见解,以及疾病管理策略的潜在目标.

关键词:

植物植物 (Phytopythium) 是一种植物.这种疾病叫做dysbiosis.基维果葡萄藤衰退综合征超级编码元标段编码.微生物组是一个微生物组.多因素疾病多因素疾病.这是下一代测序.

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