A Novel CFEM Effector in Fusarium verticillioides Required for Virulence Involved in Plant Immunity Suppression and Fungal Cell Wall Integrity
文献类型： 外文期刊
作者： Li, Huan 1 ; Ishfaq, Shumila 1 ; Liang, Xiaoyan 1 ; Wang, Rui 1 ; Wei, Hailei 2 ; Guo, Wei 1 ;
作者机构： 1.Chinese Acad Agr Sci, Minist Agr & Rural Affairs, Inst Food Sci & Technol, Key Lab Agroprod Qual & Safety Control Storage & T, Beijing 100193, Peoples R China
2.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China
3.North Minzu Univ, Ningxia Key Lab Dev & Applicat Microbial Resources, Yinchuan 750030, Peoples R China
关键词：
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：4.9； 五年影响因子：5.7 ）
ISSN： 1661-6596
年卷期： 2025 年 26 卷 9 期
页码：
收录情况： SCI
摘要： Common in Fungal Extracellular Membrane (CFEM) effectors, a unique class of fungal-specific proteins, play critical roles in host-pathogen interactions. While CFEM proteins have been extensively characterized in phytopathogens, their presence and functions in Fusarium verticillioides remained unexplored. Here, we systematically identified 19 CFEM-containing proteins in F. verticillioides, among which FvCFEM12 exhibited secretory activity and plant infection-induced expression. Functional characterization revealed that FvCFEM12 suppressed Bax- and INF1-triggered cell death in Nicotiana benthamiana leaves. Furthermore, heterologous expression of FvCFEM12 in maize leaves using P. syringae strain D36E can compromise immune responses against bacterial pathogens. Deletion of FvCFEM12 impaired fungal virulence, altered hyphal morphology, and reduced cell wall stress tolerance. Interestingly, FvCFEM12 physically interacted with the maize wall-associated receptor kinase ZmWAK17ET, and targeted silencing of ZmWAK17 in maize enhanced susceptibility to F. verticillioides. Our findings revealed that FvCFEM12 is a dual-function effector that suppresses plant immunity and maintains fungal cell wall integrity, thereby orchestrating fungal pathogenicity at the host-pathogen interface.
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