数字农科院2.0

Aquaporin OsPIP2;2 Regulates Bakanae Disease Resistance in Rice

文献类型： 外文期刊

作者： Xin Liu;Chanyuan Li;Ling Chen;Younan Ouyang;Zhijuan Ji

作者机构：

关键词： rice; bakanae disease;Aquaporin

期刊名称： Rice Science

ISSN： 1672-6308

年卷期： 2025 年 32 卷 4 期

页码：

收录情况： SCIE（2025版） ; ; CSCD（2025-2026年度） ; ; 科技核心（2024版） ; ; 农林核心（2024版）

摘要： Bakanae disease, induced by the pathogen Fusarium fujikuroi, poses a significant stress on rice cultivation. However, the key resistance genes to this disease remain largely unknown. In this study, we report that the plasma membrane intrinsic protein, OsPIP2;2, positively regulates resistance to bakanae disease in rice. Meanwhile, we observed that the OsPIP2;2 gene was specifically expressed in the rice shoot and stem. RNA-Seq revealed that the differentially expressed genes (DEGs) regulated by OsPIP2;2 were mainly involved in plant-pathogen interactions and hormone signal transduction pathways in response to bakanae disease. OsPIP2;2 enhanced resistance to bakanae disease possibly by decreasing the relative level of gibberellin (GA3) and increasing the relative levels of abscisic acid (ABA) and jasmonic acid (JA) in seedlings upon inoculation with F. fujikuroi. These findings suggest that the OsPIP2;2 gene could be a key target for the genetic enhancement of bakanae disease resistance in rice.

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