近年来，全球气候变暖，高温事件频发,严重影响茶叶产量和品质。高温如何影响茶树生长发育和茶叶品质的分子机理已逐渐成为热点。结合转录组和代谢组数据，我们发现高温影响茶树叶片中重要品质特征成分——类黄酮物质的合成代谢；同时，作为重要的防御性激素，茉莉酸含量降低，信号途径中重要的抑制因子JAZ被显著诱导。据报道，热激转录因子HSF在植物热激应答过程中发挥至关重要的作用，我们已初步筛选到调控JAZ转录的茶树热激转录因子HSF。本项目将通过生物信息学、分子生物学和生化等手段深入研究热激转录因子HSF通过调控JA途径影响茶叶品质的分子机理，重点分析HSF对JAZ启动子的直接结合能力，以及JAZ对类黄酮调控转录复合体成员的结合能力。本研究将植物防御与代谢之间的平衡联系起来，有利于我们深入了解信号途径调控植物次生代谢途径的复杂性，也为改善茶叶品质，探索绿色农业发展提供理论依据。

The increased prevalence and frequent of high temperatures around the world have seriously affected the yield and quality of tea (Camellia sinensis). The mechanism how high temperature affects the growth, development, and qualities of tea has gradually become a hot spot. Combining transcriptome and metabolomics analysis, we found that high temperature exhibited a significant impact on secondary metabolism in tea, especially the biosynthesis of flavonoids. Interestingly, we found that the content of jasmonic acid reduced, whereas the expression level of the key inhibitor JAZ is significantly upregulated. And then we screened a heat shock transcription (HSF), a major role in heat shock responses, which participates in the regulation of JAZ transcription. In the future research, we will aim at discovering the involvement of HSF in JA-modulated heat response to affect tea quality, by analyzing the direct binding ability of HSF to JAZ promoter and the interaction of JAZ with component of MYB/bHLH/WD40 transcriptional complex (MBW). Our investigation will be meaningful to make a link between environmental stress and the secondary metabolites. It will provide theoretical basis for improve tea quality and exploring the development of green agriculture.