氢气调控UV诱导的萝卜芽苗菜花青苷合成机理

Ultraviolet light is an effective promoting factor in the biosynthesis of phenolic compounds. The application of the safe and efficient technology of environmental control in improving the nutritional quality of sprouts vegetable is important for maintaining a safe food supply. Hydrogen gas (H2) is a newfound gaseous signal molecule. Our recent discoveries have demonstrated for the first time that hydrogen-rich water could significantly increase the UV-induced content of some phenolic compounds in radish sprouts, especially the anthocyanins. In order to further study the related mechanism, we will analysis the changes of H2 in the radish sprouts cultured under UV irradiation, and explore the roles of endogenous hormones, especially ABA, transcription factors and UV light receptors in mediating the biosynthesis of anthocyanins induced by UV irradiation. Combining the transcriptomics and proteomics, we will find out and verify the key factors during this process. The results will not only provide theoretical foundations and technological approaches to improve the nutritional quality of sprouts with the cotreatment of hydrogen-rich water and UV irradiation, but also promote the safe, environmental friendly, convenient and efficient new method to be applied in the protected cultivation of sprouts and other vegetables.

紫外光（UV）是植物酚类物质合成的有效促进因子。应用安全有效的环境调控技术从而提高芽苗菜的营养品质是保障其食品安全的重要措施。氢气（H2）是一种新发现的气体信号分子。我们最近的研究结果发现：富氢水处理萝卜芽苗菜，可以进一步显著提高UV照射引起的酚类物质尤其是花青苷的含量。为了进一步研究其相关机理，本课题将分析UV处理下萝卜芽苗菜中内源H2含量的变化，探究内源激素（主要是ABA）、转录因子、UV 光受体在H2 调节UV照射下萝卜芽苗菜花青苷合成过程中的作用，结合转录组学和蛋白质组学的方法筛选并验证氢气信号转导途径中的关键组分，明确UV 照射下H2 调控花青苷合成的相关机理。本项研究将为利用富氢水结合UV处理改善芽苗菜营养品质提供重要理论依据和技术途径，促进安全环保、方便高效的环境调控新方法应用于芽苗菜及设施栽培生产实际。

紫外光（UV）是植物酚类物质合成的有效促进因子。应用安全有效的环境调控技术从而提高芽苗菜的营养品质是保障其食品安全的重要措施。氢气（H2）是一种新发现的气体信号分子。我们最近的研究结果发现：富氢水处理萝卜芽苗菜，可以进一步显著提高UV照射引起的酚类物质尤其是花青苷的含量。为了进一步研究其相关机理，本课题将分析UV处理下萝卜芽苗菜中内源H2含量的变化，探究内源激素、转录因子、UV光受体在H2调节UV照射下萝卜芽苗菜花青苷合成过程中的作用，结合转录组学和蛋白质组学的方法筛选并验证氢气信号转导途径中的关键组分，明确UV照射下H2调控花青苷合成的相关机理。本项研究将为利用富氢水结合UV处理改善芽苗菜营养品质提供重要理论依据和技术途径，促进安全环保、方便高效的环境调控新方法应用于芽苗菜及设施栽培生产实际。