Tao Jiemeng, Jin Jingjing, Lu Peng, Yu Shizhou, Gu Mengli, Wang Jinbang, Zhang Jianfeng, Cao Peijian
Beijing Life Science Academy, Beijing, 102200, China.
China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, 450001, China.
BMC Plant Biol. 2025 Jan 10;25(1):39. doi: 10.1186/s12870-025-06056-1.
Fungal communities around plant roots play crucial roles in maintaining plant health. Nonetheless, the responses of fungal communities to bacterial wilt disease remain poorly understood. Here, the structure and function of fungal communities across four consecutive compartments (bulk soil, rhizosphere, rhizoplane and root endosphere) were investigated under the influence of bacterial wilt disease.
The results showed that bacterial wilt disease caused different assembly patterns of fungal communities in the bulk soil, rhizosphere, rhizoplane and endosphere. Under the influence of bacterial wilt disease, a decreased fungal diversity was observed in the rhizoplane and endosphere, and completely different kinds of fungal genera were enriched in the four compartments. The complexity and stability of fungal networks were less affected, but the number of key fungal members in networks were significantly reduced in diseased samples. Functional predictions based on FUNGuild suggested that with the pathogen infection, saprotrophic fungi were increased in the bulk soil, but pathotrophic fungi (potential plant and animal pathogens) were increased in the rhizosphere, rhizoplane and endosphere.
This work provides a deep insight into the effects of bacterial wilt disease on fungal communities along the soil-root continuum, and is helpful to identify plant-associated beneficial fungi to resist plant disease.
Not applicable.
植物根系周围的真菌群落对维持植物健康起着至关重要的作用。然而，真菌群落对青枯病的反应仍知之甚少。在此，研究了在青枯病影响下，四个连续区室（根际土壤、根际、根表和根内圈）中真菌群落的结构和功能。
结果表明，青枯病导致根际土壤、根际、根表和根内圈中真菌群落的组装模式不同。在青枯病的影响下，根表和根内圈的真菌多样性降低，四个区室中富集了完全不同种类的真菌属。真菌网络的复杂性和稳定性受影响较小，但患病样本中网络关键真菌成员的数量显著减少。基于FUNGuild的功能预测表明，随着病原体感染，根际土壤中腐生真菌增加，但根际、根表和根内圈中致病真菌（潜在的植物和动物病原体）增加。
这项工作深入洞察了青枯病对沿土壤-根系连续体的真菌群落的影响，有助于识别与植物相关的有益真菌以抵抗植物病害。
不适用。
