Histamine: A key compound in red light-enhanced Fusarium verticillioides resistance in maize

IF 23.7 Q1 MICROBIOLOGY

iMeta Pub Date : 2025-04-07 DOI:10.1002/imt2.70020

Xuanjun Feng, Dan Zheng, Weixiao Zhang, Huihui Xiao, Huarui Guan, Hao Xiong, Li Jia, Xuemei Zhang, Wenming Wang, Haiyang Wang, Yanli Lu

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Abstract

In this study, we demonstrate that red light is the most critical light component for promoting healthy maize growth during Fusarium verticillioides infection. Red light receptors PHYTOCHROME B (PHYB) and C (PHYC) play essential roles in maize defense against this pathogen. Overexpression of PHYC in maize enhances resistance to F. verticillioides. Additionally, we identified two defense-related gene networks and some metabolites that reliant on PHYCs, involving key contributors such as WRKY transcription factors and metabolites like histamine and thiamine. Notably, the application of 50 μM histamine significantly boosts resistance, particularly under high-density conditions, marking the first report of the role of histamine in disease resistance in plants.

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在这项研究中，我们证明了红光是在轮纹镰刀菌感染期间促进玉米健康生长的最关键光照成分。红光受体 PHYTOCHROME B（PHYB）和 C（PHYC）在玉米抵御该病原体的过程中发挥着重要作用。在玉米中过表达 PHYC 可增强对禾谷轮孢霉的抗性。此外，我们还发现了两个依赖于 PHYCs 的防御相关基因网络和一些代谢产物，其中涉及 WRKY 转录因子等关键贡献因子以及组胺和硫胺素等代谢产物。值得注意的是，施用 50 μM 组胺能显著增强抗性，尤其是在高密度条件下，这是首次报道组胺在植物抗病中的作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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iMeta

CiteScore

10.80

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0.00%

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