ACL1-ROC4/5 complex reveals a common mechanism in rice response to brown planthopper infestation and drought

文献类型： 外文期刊

第一作者： Tao, Zhihuan

作者： Tao, Zhihuan;Zhu, Lin;Li, Haichao;Sun, Bo;Hu, Wenli;Wang, Shanshan;Miao, Xuexia;Shi, Zhenying;Tao, Zhihuan;Zhu, Lin;Sun, Bo;Liu, Xue;Li, Dayong

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期刊名称：NATURE COMMUNICATIONS （ 影响因子：15.7； 五年影响因子：17.2 ）

ISSN：

年卷期： 2024 年 15 卷 1 期

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收录情况： SCI

摘要： Brown planthopper (BPH) is the most destructive insect pest of rice. Drought is the most detrimental environmental stress. BPH infestation causes adaxial leaf-rolling and bulliform cells (BCs) shrinkage similar to drought. The BC-related abaxially curled leaf1 (ACL1) gene negatively regulates BPH resistance and drought tolerance, with decreased cuticular wax in the gain-of-function mutant ACL1-D. ACL1 shows an epidermis-specific expression. The TurboID system and multiple biochemical assays reveal that ACL1 interacts with the epidermal-characteristic rice outermost cell-specific (ROC) proteins. ROC4 and ROC5 positively regulate BPH resistance and drought tolerance through modulating cuticular wax and BCs, respectively. Overexpression of ROC4 and ROC5 both rescue ACL1-D mutant in various related phenotypes. ACL1 competes with ROC4/ROC5 in homo-dimer and hetero-dimer formation, and interacts with the repressive TOPLESS-related proteins. Altogether, we illustrate that ACL1-ROC4/5 complexes synergistically mediate drought tolerance and BPH resistance through regulating cuticular wax content and BC development in rice, a mechanism that might facilitate BPH-resistant breeding. Brown planthopper is a rice-specific piercing-sucking pest. This study reveals that ACL1-ROC4/5 complexes regulate both brown planthopper resistance and drought tolerance in rice through modulating bulliform cell development and cuticular wax content.

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