次级代谢物在植物与环境互作中发挥重要作用，其合成和分泌的主要场所之一是腺体毛。在番茄中，腺体毛通过合成分泌萜烯类等次级代谢物抵御生物逆境。前人的研究表明，害虫侵袭可以激活植物体内茉莉酸合成，并且外施茉莉酸可以促进番茄腺毛的发生。因此，腺体毛的发育和代谢调控可能作为茉莉酸介导的逆境响应的一个重要环节。然而关于其调控机制仍然没有揭示清楚。申请人前期通过EMS诱变和MeJA处理筛选到一个茉莉酸不敏感的腺毛缺失突变体jidt，并且该突变体对红蜘蛛易感。BSA分析和转基因验证表明JIDT编码HD-ZIP转录因子，是番茄中一个新的调控腺毛发育的转录因子。本研究将继续通过MeJA处理、表皮毛数量统计、次级代谢物检测等实验确定JIDT介导茉莉酸调控番茄腺毛发育和代谢的功能。进而通过验证JIDT与JAZ的相互作用揭示JIDT介导茉莉酸信号的机制，为进一步揭示茉莉酸调控腺体毛发育的机制提供更多证据。

Secondary metabolites play an important role in plant adaptation to its environment. Glandular trichomes are known as the factory of a variety of specialized metabolites and play an important role in resistance to insect herbivores in tomato. The defense hormone jasmonic acid (JA) was reported to induce trichome initiation in tomato. Therefore, glandular trichomes development and metabolism regulation may be an important part of JA-mediated stress response. But the molecular mechanism remains unclear. In this study, we screened the jidt mutant which showed defective trichomes and insensitive to MeJA. BSA analysis and transgenic verification showed that JIDT encoded a HD-ZIP transcription factor, which is a novel HD-ZIP transcription factor regulating the development of glandular trichomes. We will continue to verify the function of JIDT mediating JA to regulate the development and metabolism of glandular trichomes through MeJA treatment, trichomes quantification, secondary metabolites detection and other methods. Furthermore, the mechanism of JIDT mediating JA signal will be revealed by detecting the interaction between JIDT and JAZ protein. This study is of great significance to further reveal the mechanism of JA regulating glandular trichomes development.