Interaction Between Glycoside Hydrolase FsGH28c from Fusarium solani and PnPUB35 Confers Resistance in Piper nigrum
文献类型： 外文期刊
作者： Liu, Shichao 1 ; Xing, Tianci 3 ; Liu, Ruibing 1 ; Gao, Shengfeng 1 ; Yang, Jianfeng 1 ; Tian, Tian 1 ; Zhang, Chong 3 ; Sun, Shiwei 1 ; Zhao, Chenchen 4 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Spice & Beverage Res Inst, Wanning 571533, Peoples R China
2.Key Lab Genet Improvement & Qual Regulat Trop Spic, Wanning 571533, Peoples R China
3.Shenyang Agr Univ, Coll Plant Protect, Shenyang 110866, Peoples R China
4.Henan Agr Univ, Coll Plant Protect, Zhengzhou 450002, Peoples R China
关键词：
glycoside hydrolase;
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： Pathogens deploy various molecular mechanisms to overcome host defenses, among which glycoside hydrolases (GHs) play a critical role as virulence factors. Understanding the functional roles of these enzymes is essential for uncovering pathogen-host interactions and developing strategies for disease management. Fusarium wilt has occurred in the main Piper nigrum cultivation regions, which seriously affects the yield and quality of P. nigrum. Here, we identified and characterized FsGH28c, a GH28 family member in Fusarium solani. Its expression was significantly upregulated during the infection of black pepper (Piper nigrum) roots by F. solani cv. WN-1, indicating its potential role in pathogenicity. FsGH28c elicited cell death in Nicotiana benthamiana and modulated the expression of genes related to pathogenesis. FsGH28c exerts a positive influence on the pathogenicity of F. solani. The knockout of FsGH28c mutant strains markedly attenuated F. solani 's virulence in black pepper plants. The knockout mutant strains decrease the ability of F. solani to utilize carbon sources. The FsGH28c deletion did not affect mycelial growth on PDA but did impact spore development. We identified a U-box protein, PnPUB35, interacting with FsGH28c using yeast two-hybrid and bimolecular fluorescence complementation assays. PnPUB35 conferred enhanced resistance to F. solani in black pepper through positive regulation. These findings suggest that FsGH28c may function as a virulence factor by modulating host immune responses through its interaction with PnPUB35.
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