The Circadian Clock Gene PHYTOCLOCK1 Mediates the Diurnal Emission of the Anti-Insect Volatile Benzyl Nitrile from Damaged Tea (Camellia sinensis) Plants

文献类型： 外文期刊

第一作者： Qian, Jiajia

作者： Qian, Jiajia;Zhu, Chen;Yang, Yuhua;Gu, Dachuan;Liao, Yinyin;Zeng, Lanting;Yang, Ziyin;Qian, Jiajia;Zhu, Chen;Yang, Yuhua;Gu, Dachuan;Liao, Yinyin;Zeng, Lanting;Yang, Ziyin;Qian, Jiajia;Zhu, Chen;Yang, Yuhua;Gu, Dachuan;Liao, Yinyin;Zeng, Lanting;Yang, Ziyin;Li, Jianlong;Li, Jianlong;Gu, Dachuan;Zeng, Lanting;Yang, Ziyin

作者机构：

关键词： benzyl nitrile; Camellia sinensis; circadianclock; CsPCL1; slow-release beads; volatile compound

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.1； 五年影响因子：6.3 ）

ISSN： 0021-8561

年卷期： 2024 年 72 卷 23 期

页码：

收录情况： SCI

摘要： Benzyl nitrile from tea plants attacked by various pests displays a diurnal pattern, which may be closely regulated by the endogenous circadian clock. However, the molecular mechanism by the circadian clock of tea plants that regulates the biosynthesis and release of volatiles remains unclear. In this study, the circadian clock gene CsPCL1 can activate both the expression of the benzyl nitrile biosynthesis-related gene CsCYP79 and the jasmonic acid signaling-related transcription factor CsMYC2 involved in upregulating CsCYP79 gene, thereby resulting in the accumulation and release of benzyl nitrile. Therefore, the anti-insect function of benzyl nitrile was explored in the laboratory. The application of slow-release beads of benzyl nitrile in tea plantations significantly reduced the number of tea geometrids and had positive effects on the yield of fresh tea leaves. These findings reveal the potential utility of herbivore-induced plant volatiles for the green control of pests in tea plantations.

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