A secreted glycerophosphodiester phosphodiesterase (GDPD) domain-containing protein, FpGDPD, is involved in Fusarium pseudograminearum virulence
文献类型： 外文期刊
作者： Liu, Min 1 ; Su, Zengqing 1 ; Zhang, Shiyu 1 ; Fan, Zhuo 1 ; Zhao, Peiyi 1 ; Xing, Xiaoping 1 ; Zhao, Wei 2 ; Li, Honglian 1 ; Chen, Linlin 1 ;
作者机构： 1.Henan Agr Univ, Coll Plant Protect, Zhengzhou 450046, Peoples R China
2.Anhui Acad Agr Sci, Inst Plant Protect & Agroprod Safety, Hefei 230031, Peoples R China
3.State Key Lab High Efficiency Prod Wheat Maize Dou, Zhengzhou 450046, Peoples R China
关键词：
期刊名称：MYCOLOGIA （ 影响因子：2.6； 五年影响因子：2.7 ）
ISSN： 0027-5514
年卷期： 2025 年 117 卷 5 期
页码：
收录情况： SCI
摘要： Microbial pathogens secrete a diverse array of proteins to manipulate plant defense mechanisms and facilitate infection. However, few secreted proteins were thoroughly characterized in Fusarium pseudograminearum. Here, we identify and characterize FpGDPD, a gene encoding a secretory glycerophosphodiester phosphodiesterase (GDPD) domain-containing protein in F. pseudograminearum. We found that FpGDPD expression was significantly upregulated during specific stages of fungal infection. Disruption of FpGDPD in F. pseudograminearum did not affect vegetative growth, stress responses, or conidiation but enhanced phosphate tolerance and reduced fungal virulence in wheat. Furthermore, we demonstrated the secretory nature of the N-terminal signal peptide of FpGDPD and that the signal peptide contributes to F. pseudograminearum pathogenicity. Interestingly, FpGDPD triggers immune responses in Nicotiana benthamiana, inducing reactive oxygen species (ROS) accumulation and upregulating defense-related genes. Collectively, our findings reveal that FpGDPD plays a dual role: it promotes fungal virulence while simultaneously eliciting plant immune responses.
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