Wang Yan, Wang Liwei, Suo Meng, Qiu Zhijie, Wu Hao, Zhao Min, Yang Hongyan
College of Life Sciences, Northeast Forestry University, Harbin, China.
Key Laboratory for Enzyme and Enzyme-like Material Engineering of Heilongjiang, Harbin, China.
Front Microbiol. 2022 May 12;13:850917. doi: 10.3389/fmicb.2022.850917. eCollection 2022.
Plant-associated microbes play important roles in plant health and disease. is often found in the plant rhizosphere, and its possible functions are not well known, especially in medical plants. isolated from ginseng soil was used to investigate its effects on plant disease. The promoting properties and interactions with rhizospheric microorganisms were investigated in a medium. Further, a pot experiment was conducted to explore its effects on ginseng root rot disease. Physicochemical properties, high-throughput sequencing, network co-occurrence, distance-based redundancy analysis (db-RDA), and correlation analysis were used to evaluate their effects on the root rot pathogen. The results showed that YW25 had a high indoleacetic acid production capacity, and the maximum yield was 141.37 mg/L at 4 days. The growth of YW25 was inhibited by some probiotics (, , , , etc.) and potential pathogens (, , etc.), but it did not show sensitivity to the soil-borne pathogen . Pot experiments showed that could significantly alleviate the diseases caused by , and increased the available nitrogen and phosphorus content in rhizosphere soil. In addition, it enhanced the activities of soil sucrase and acid phosphatase. High-throughput results showed that the inoculation of with changed the microbial community structure of ginseng, stimulated the plant to recruit more plant growth-promoting bacteria, and constructed a more stable microbial network of ginseng root. In this study, we found and proved the potential of as a biocontrol agent against , providing a new idea for controlling soil-borne diseases of ginseng by regulating rhizosphere microorganisms.
与植物相关的微生物在植物健康和疾病中发挥着重要作用。它常存在于植物根际，其可能的功能尚不清楚，尤其是在药用植物中。从人参土壤中分离出的[具体微生物名称未给出]用于研究其对植物病害的影响。在培养基中研究了其促进特性以及与根际微生物的相互作用。此外，进行了盆栽试验以探索其对人参根腐病的影响。采用理化性质分析、高通量测序、网络共现分析、基于距离的冗余分析（db-RDA）和相关性分析来评估它们对根腐病原菌的影响。结果表明，YW25具有较高的吲哚乙酸生产能力，在4天时最大产量为141.37mg/L。YW25的生长受到一些益生菌（[具体益生菌名称未给出]等）和潜在病原菌（[具体病原菌名称未给出]等）的抑制，但它对土传病原菌[具体病原菌名称未给出]不敏感。盆栽试验表明，[具体微生物名称未给出]能显著减轻由[具体病原菌名称未给出]引起的病害，并增加根际土壤中有效氮和磷的含量。此外，它还增强了土壤蔗糖酶和酸性磷酸酶的活性。高通量结果表明，接种[具体微生物名称未给出]与[具体微生物名称未给出]改变了人参的微生物群落结构，刺激植物招募更多促进植物生长的细菌，并构建了更稳定的人参根际微生物网络。在本研究中，我们发现并证明了[具体微生物名称未给出]作为防治[具体病原菌名称未给出]的生物防治剂的潜力，为通过调节根际微生物来控制人参土传病害提供了新思路。
