NJAU 4742 (Tgui) can serve as a promising strain for the development of novel biofertilizers and biofungicides. Plants primed with Tgui via inoculation were investigated to clarify the underlying mechanisms that promote root growth and development and activate the plant innate immune response. The relative expression of defence-related genes and of genes involved in the auxin signalling pathway in Zea mays and Arabidopsis thaliana was quantified. Scanning electron microscopy (SEM) was performed to visualize the colonization of Tgui in maize roots, and a proteomic approach was used to identify Tgui-derived elicitors. The establishment of Tgui in the rhizosphere of maize leads to the stimulation of the auxin synthesis pathway in maize and subsequently leads to increased plant growth. And the extracellular proteins of Tgui induced systemic resistance (ISR) of maize plants to Fusarium verticillioides (Fv) (Hypocreales, Ascomycota); the ISR of maize plants may be linked to the accumulation of reactive oxygen species (ROS) and increased deposition of callose in maize tissue. Activation of the maize immune response was triggered by the mixture of extracellular proteins secreted by Tgui into the rhizosphere. Our study thereby contributes to a better understanding of the interaction between T. guizhouense and plant roots.

中文翻译：

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贵州木霉胞外蛋白在玉米 (Zea mays) 植物中引发免疫反应

NJAU 4742 (Tgui) 可以作为开发新型生物肥料和生物杀菌剂的有前途的菌株。研究了通过接种用 Tgui 引​​发的植物，以阐明促进根生长和发育和激活植物先天免疫反应的潜在机制。量化了玉米和拟南芥中防御相关基因和涉及生长素信号通路的基因的相对表达。进行扫描电子显微镜 (SEM) 以可视化 Tgui 在玉米根中的定植，并使用蛋白质组学方法来识别 Tgui 衍生的诱导子。Tgui 在玉米根际的建立会刺激玉米中的生长素合成途径，进而促进植物生长。并且Tgui的胞外蛋白诱导玉米植物对轮枝镰孢（Fv）（Hypocreales，Ascomycota）的系统抗性（ISR）；玉米植物的 ISR 可能与活性氧 (ROS) 的积累和玉米组织中胼胝质的沉积增加有关。玉米免疫反应的激活是由 Tgui 分泌到根际的细胞外蛋白质的混合物触发的。因此，我们的研究有助于更好地了解贵州金枪鱼与植物根系之间的相互作用。玉米免疫反应的激活是由 Tgui 分泌到根际的细胞外蛋白质的混合物触发的。因此，我们的研究有助于更好地了解贵州木与植物根系之间的相互作用。玉米免疫反应的激活是由 Tgui 分泌到根际的细胞外蛋白质的混合物触发的。因此，我们的研究有助于更好地了解贵州金枪鱼与植物根系之间的相互作用。