A TFAIII-Type Transcription Factor OsZFPH Regulating a Signaling Pathway Confers Resistance to Xanthomonas oryzae pv. Oryzae in Rice
文献类型： 外文期刊
作者： Yang, Chunyun 1 ; Xinxiang, A. 1 ; Tang, Cuifeng 1 ; Dong, Chao 1 ; Zhang, Feifei 1 ; He, Chunmei 1 ; Sun, Yiding 1 ; Yang, Yi 1 ; Yan, Sandan 2 ; Liu, Yanhong 3 ; Yang, Yayun 1 ; Dai, Luyuan 4 ;
作者机构： 1.Yunnan Acad Agr Sci, Inst Biotechnol & Germplasm Resources, Yunnan Prov Key Lab Agr Biotechnol, Key Lab Southwestern Crop Gene Resources & Germpla, Kunming 650205, Peoples R China
2.Xishuangbanna Agr Sci Res Inst, Jinghong 666100, Peoples R China
3.Agr Environm Protect & Rural Energy Workstat, Yuanjiang 653300, Peoples R China
4.Yunnan Acad Agr Sci, Kunming 650205, Peoples R China
关键词：
local rice; Haonuoyang; bacterial leaf blight (BLB); TFAIII-type transcription factor;
期刊名称：GENES （ 影响因子：2.8； 五年影响因子：3.2 ）
ISSN：
年卷期： 2025 年 16 卷 3 期
页码：
收录情况： SCI
摘要： Background: Rice bacterial leaf blight, caused by the Gram-negative bacterium Xanthomonas oryzae pv. Oryzae (Xoo), significantly impacts rice production. To address this disease, research efforts have focused on discovering and utilizing novel disease-resistant genes and examining their functional mechanisms. Methods and Results: In this study, a variety of bacterial strains were utilized. CX28-3, AX-11, JC12-2, and X10 were isolated from the high-altitude japonica rice-growing region on the Yunnan Plateau. Additionally, PXO61, PXO86, PXO99, and PXO339, sourced from the International Rice Research Institute (IRRI), were included in the analysis. To evaluate the resistance characteristics of Haonuoyang, artificial leaf cutting and inoculation methods were applied. Results indicated that Haonuoyang exhibited broad-spectrum resistance. Additionally, to explore the genetic mechanisms of resistance, the TFAIII-type transcription factor OsZFPH was cloned from Haonuoyang using PCR amplification. The subcellular localization method identified the precise location of the OsZFPH gene within the cell. The expression of OsZFPH was induced by Xoo stress. The overexpression of OsZFPH resulted in increased activities of enzymes, including SOD, CAT, and POD, while silencing the gene led to reduced enzyme activities. Furthermore, the hormones SA (salicylic acid), JA (jasmonic acid), and GA (gibberellin) were shown to positively regulate the gene expression. Protein interactions with OsZFPH were verified through a yeast two-hybrid system and BiFC technology. Hap5, which aligned with the sequence of Haonuoyang, was found to belong to a haplotype consisting of Jingang 30, 40 resequenced rice varieties, 18 Oryza rufipogon, and 29 Oryza granulata. Conclusions: The findings of this study emphasize the vital role of OsZFPH in rice resistance to bacterial leaf blight. The identification of broad-spectrum resistance in Haonuoyang and the understanding of OsZFPH gene functions provide valuable insights for the future development of rice varieties with improved resistance to this destructive disease.
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