Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, National Engineering Research Center for Organic-based Fertilizers, College of Resources and Environmental Science, Nanjing Agricultural University, Nanjing 210095, China.
Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, National Engineering Research Center for Organic-based Fertilizers, College of Resources and Environmental Science, Nanjing Agricultural University, Nanjing 210095, China.
Trends Plant Sci. 2024 Jan;29(1):52-63. doi: 10.1016/j.tplants.2023.06.022. Epub 2023 Jul 17.
Nematodes are a crucial component of rhizosphere biodiversity, affecting plant health as the most abundant and functionally diverse soil animals. Plant-parasitic nematodes are generally considered harmful, which may overlook their potential benefits to plants when coexisting with free-living nematodes in soil. We provide new insights into nematodes as vital plant partners. Plant root damage by plant-parasitic nematodes creates opportunities for pathogens and beneficial microbiota to colonize the rhizosphere. Free-living nematodes coordinate microbiota to suppress plant diseases, but they are susceptible to mortality from plant pathogens, potentially favoring pathogen release in the root zone. We conclude that the nematode's role in regulating plant pathogens represents a missing link, constraining our ability to predict and control soil-borne diseases in healthy plants.
线虫是根际生物多样性的重要组成部分，作为最丰富和功能最多样化的土壤动物，影响着植物的健康。植物寄生线虫通常被认为是有害的，但当它们与土壤中的自由生活线虫共存时，可能会忽略它们对植物的潜在益处。我们提供了线虫作为重要植物伙伴的新见解。植物寄生线虫对植物根系的损害为病原体和有益微生物在根际定殖创造了机会。自由生活的线虫协调微生物群落来抑制植物病害，但它们容易受到植物病原体的致死，这可能有利于病原体在根区的释放。我们的结论是，线虫在调节植物病原体方面的作用代表了一个缺失的环节，限制了我们预测和控制健康植物中土传病害的能力。
