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| 1 | 茶树生长光调控研究进展显示文摘茶树生长发育受外界环境因素的影响,光是重要的因素之一,可单独或与温度等其他环境因素协同调控茶树生长发育及次生代谢产物的合成。介绍了近年来国内外光调控茶树生长及其代谢方面的研究进展,重点探讨了不同光谱波段、光子通量和光周期对茶树生长、代谢产物组分的影响,明确茶树生长、代谢的光调控过程,解析光调控机制,为开发可用于生产实践的茶树光调控技术奠定理论基础。 | 盖淑杰 王奕雄 李兰 刘硕谦 李银花 程孝 夏茂 刘仲华 周智 | 2022 | 茶叶科学2022，42，6： | 5 |
| 2 | UV-B promotes flavonoid biosynthesis in Ginkgo biloba by inducing the GbHY5-GbMYB1-GbFLS module显示文摘Ginkgo biloba(ginkgo)leaves have medicinal value due to their high levels of secondary metabolites,such as flavonoids.We found that the flavonoid content in ginkgo leaves increases significantly at high altitudes(Qinghai-Tibet Plateau).Considering that high UV-B radiation is among the key environmental characteristics of the Qinghai-Tibet Plateau,we carried out simulated UV-B treatments on ginkgo seedlings and found that the flavonoid content of the leaves increased significantly following the treatments.Combined with results from our previous studies,we determined that the transcription factor GbHY5 may play a key role in responses to UV-B radiation.Overexpression of GbHY5 significantly promoted the accumulation of flavonoids in both ginkgo callus and Arabidopsis thaliana.Furthermore,yeast two-hybrid and real-time quantitative PCR showed that GbHY5 promoted the expression of GbMYB1 by interacting with GbMYB1 protein.Overexpression of GbMYB1 in ginkgo callus and A.thaliana also significantly promoted flavonoid biosynthesis.GbFLS encodes a key enzyme in flavonoid biosynthesis,and its promoter has binding elements of GbHY5 and GbMYB1.A dual-luciferase reporter assay indicated that while GbHY5 and GbMYB1 activated the expression of GbFLS individually,their co-expression achieved greater activation.Our analyses reveal the molecular mechanisms by which the UV-B-induced GbHY5-GbMYB1-GbFLS module promotes flavonoid biosynthesis in ginkgo,and they provide insight into the use of UV-B radiation to enhance the flavonoid content of ginkgo leaves. | Sian Liu Xiaoyin Gu Yanbing Jiang Lu Wang Nan Xiao Yadi Chen Biao Jin Li Wang Weixing Li | 2023 | Horticulture Research2023，10，8： | 0 |
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