An effector of Phthorimaea absoluta oral secretions inhibits host plant defense

文献类型： 外文期刊

第一作者： Wang, Xiaodi

作者： Wang, Xiaodi;Luo, Xuqing;Guo, Jianyang;Yang, Nianwan;Wan, Fanghao;Lu, Zhichuang;Liu, Wanxue;Yang, Nianwan

作者机构：

期刊名称：ISCIENCE （ 影响因子：4.6； 五年影响因子：5.0 ）

ISSN：

年卷期： 2024 年 27 卷 7 期

页码：

收录情况： SCI

摘要： Insects have evolved effectors to regulate host defenses for efficient feeding, yet their impact on chewing insects, like the tomato leaf miner (Phthorimaea absoluta), a significant pest, is poorly understood. We used RNAi to target the REPAT38 gene in larvae, monitoring changes at 0.5, 1, 2, and 4 h in leaf stomata, plant hormone concentrations (jasmonic acid (JA), jasmonoyl-L-isoleucine (JA-Ile), salicylic acid (SA), ethylene (ET), and abscisic acid (ABA)), and 12 hormone-responsive genes to explore the molecular mechanism of REPAT38-mediated plant-insect interactions. The results showed that the effector induced stomatal closure at 0.5 h and inhibited the synthesis of JA, ET, and ABA at 1 h. Additionally, seven plant hormone-responsive genes-AOC, MYC2, ACS1A, PAL, PR1, EIL2, and SRK2E-were inhibited at various time points. Our data suggest that REPAT38, as an effector with conserved functions, can weaken tomato host defenses and conducive to insect adaptation to host plants.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序