Purpose

The importance of protists in plant growth and health has already been widely studied. However, protists are rarely associated with soil-borne viral disease and how plant genotype can affect these interactions.

Methods

Here, we investigated rhizosphere protists linked with wheat yellow mosaic disease resistance and susceptibility in cultivars during the wheat seedling to the jointing stages of plant growth.

Results

Our results showed that disease-resistant wheat cultivars exhibited significantly lower infection rates under field conditions, which were associated with higher protistan diversity and stability during early plant development. Furthermore, disease-resistant cultivars exhibited higher relative abundance of predatory protists, such as Colpodida, Litostomatea, and Oligohymenophorea, which may support plant health and disease resistance during the seedling to jointing stages. Moreover, our results demonstrate that the protistan compositional stability at the seedling stage can predict wheat health and pathogen susceptibility.

Conclusion

These findings highlight the potential of manipulating the abundance and composition of seedling-stage protists to enhance plant disease resistance. Our findings provide novel insights into protist dynamics influenced by host traits and their implications for disease resistance and plant health, thereby offering potential strategies for agricultural biocontrol and disease management.

中文翻译：

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宿主基因型特异性根际原生生物将小麦的土壤传播病毒病抗性联系起来

 目的

原生生物在植物生长和健康中的重要性已经被广泛研究。然而，原生生物很少与土壤传播的病毒病以及植物基因型如何影响这些相互作用有关。

 方法

在这里，我们研究了根际原生生物与小麦幼苗期间品种对小麦黄花叶病的抗性和对植物生长拔节阶段的易感性有关。

 结果

我们的结果表明，抗病小麦品种在田间条件下表现出显着较低的感染率，这与植物早期发育过程中较高的原生蛋白多样性和稳定性有关。此外，抗病品种表现出较高的捕食性原生生物的相对丰度，例如 Colpodida、Litostomatea 和 Oligohymenophorea，这可能支持植物在幼苗到拔节阶段的健康和抗病性。此外，我们的结果表明，幼苗期原生蛋白素组成稳定性可以预测小麦健康和病原菌易感性。

 结论

这些发现强调了操纵幼苗期原生生物的丰度和组成以增强植物抗病性的潜力。我们的研究结果为受宿主性状影响的原生生物动力学及其对抗病性和植物健康的影响提供了新的见解，从而为农业生物控制和疾病管理提供了潜在的策略。