Section of Terrestrial Ecology, University of Copenhagen, Copenhagen, DK-2100, Denmark.
Department of Nematology, Wageningen University and Research, Wageningen, 6708PB, the Netherlands.
New Phytol. 2023 Jun;238(6):2305-2312. doi: 10.1111/nph.18925. Epub 2023 Apr 17.
Plant-nematode interactions are mainly considered from the negative aspect with a focus on plant-parasitic nematodes (PPNs), which is justified considering the agronomic losses caused by PPNs. Despite the fact that PPNs are outnumbered by nonparasitic free-living nematodes (FLNs), the functional importance of FLNs, especially with regard to plant performance, remains largely unknown. Here, we provide a comprehensive overview and most recent insights into soil nematodes by showing direct and indirect links of both PPNs and FLNs with plant performance. We especially emphasize the knowledge gaps and potential of FLNs as important indirect players in driving plant performance such as stimulating the resistance to pests via improving the disease suppressive activity of the rhizobiome. Together, we present a holistic view of soil nematodes as positive and negative contributors to plant performance, accentuating the positive but underexplored role of FLNs.
植物-线虫相互作用主要从负面方面考虑，重点是植物寄生线虫（PPNs），考虑到 PPNs 造成的农业损失，这是合理的。尽管非寄生自由生活线虫（FLNs）的数量超过 PPNs，但 FLNs 的功能重要性，特别是在植物性能方面，仍然很大程度上未知。在这里，我们通过展示 PPNs 和 FLNs 与植物性能的直接和间接联系，提供了对土壤线虫的全面概述和最新见解。我们特别强调了知识差距和 FLNs 的潜力，因为它们作为重要的间接参与者，可以通过提高根际微生物组的抑制疾病活性来刺激对害虫的抗性，从而驱动植物性能。总的来说，我们提出了一个土壤线虫作为植物性能的积极和消极贡献者的整体观点，强调了 FLNs 的积极但未被充分探索的作用。
