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Transcriptional regulation of flavonol biosynthesis in plants

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Flavonols are a class of flavonoids that play a crucial role in regulating plant growth and promoting stress resistance.They are also important dietary components in horticultural crops due to their benefits for human health.In past decades,research on the transcriptional regulation of flavonol biosynthesis in plants has increased rapidly.This review summarizes recent progress in flavonol-specific transcriptional regulation in plants,encompassing characterization of different categories of transcription factors(TFs)and microRNAs as well as elucidation of different transcriptional mechanisms,including direct and cascade transcriptional regulation.Direct transcriptional regulation involves TFs,such as MYB,AP2/ERF,and WRKY,which can directly target the key flavonol synthase gene or other early genes in flavonoid biosynthesis.In addition,different regulation modules in cascade transcriptional regulation involve microRNAs targeting TFs,regulation between activators,interaction between activators and repressors,and degradation of activators or repressors induced by UV-B light or plant hormones.Such sophisticated regulation of the flavonol biosynthetic pathway in response to UV-B radiation or hormones may allow plants to fine-tune flavonol homeostasis,thereby balancing plant growth and stress responses in a timely manner.Based on orchestrated regulation,molecular design strategies will be applied to breed horticultural crops with excellent health-promoting effects and high resistance.

Yunlin Cao、Yuyang Mei、Ruining Zhang、Zelong Zhong、Xiaochun Yang、Changjie Xu、Kunsong Chen、Xian Li

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Zhejiang Provincial Key Laboratory of Horticultural Crop Quality Manipulation,Zhejiang University,Hangzhou,310058,China

Center for Drug Safety Evaluation and Research,College of Pharmaceutical Sciences,Zhejiang University,Hangzhou,310058,China

Shandong(Linyi)Institute of Modern Agriculture,Zhejiang University,Linyi,276000,China

College of Food Science and Nutritional Engineering,China Agricultural University,Beijing 100083,China

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国家自然科学基金山东省自然科学基金浙江省重点研发计划Key Project for New Variety Breeding in Agriculture of Zhejiang Province

32372667ZR2023QC2282021C020012021C02066-3

2024

10.1093/hr/uhae043

园艺研究(英文)

园艺研究(英文)

CSTPCD
ISSN：
年,卷(期)：2024.11(4)
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