文献类型： 外文期刊
第一作者： He, Yi
作者： He, Yi;Wang, Yuhua;Dong, Yifan;Zhang, Zhengguang;Li, Gang;He, Yi;Wu, Lei;Jiang, Peng;Zhang, Xu;Yang, Xiujuan;Tucker, Matthew R.;Xia, Xiaobo;Jiang, Cong;Ma, Hongxiang;Ma, Wujun;Liu, Cong;Whitford, Ryan
作者机构：
期刊名称：CELL HOST & MICROBE （ 影响因子：20.6； 五年影响因子：22.1 ）
ISSN： 1931-3128
年卷期： 2024 年 32 卷 5 期
页码：
收录情况： SCI
摘要： Fusarium head blight (FHB) is a devastating wheat disease. Fhb1 , the most widely applied genetic locus for FHB resistance, is conferred by TaHRC of an unknown mode of action. Here, we show that TaHRC alleles distinctly drive liquid -liquid phase separation (LLPS) within a proteinaceous complex, determining FHB susceptibility or resistance. TaHRC-S (susceptible) exhibits stronger LLPS ability than TaHRC-R (resistant), and this distinction is further intensified by fungal mycotoxin deoxynivalenol, leading to opposing FHB symptoms. TaHRC recruits a protein class with intrinsic LLPS potentials, referred to as an "HRC-containing hub."TaHRC-S drives condensation of hub components, while TaHRC-R comparatively suppresses hub condensate formation. The function of TaSR45a splicing factor, a hub member, depends on TaHRC-driven condensate state, which in turn differentially directs alternative splicing, switching between susceptibility and resistance to wheat FHB. These findings reveal a mechanism for FHB spread within a spike and shed light on the roles of complex condensates in controlling plant disease.
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