Light signal transduction networks regulating phenylpropanoid, terpenoid and alkaloid biosynthesis in horticultural plants

IF 4.8 3区生物学 Q1 PLANT SCIENCES

Journal of plant physiology Pub Date : 2026-02-01 Epub Date: 2025-12-18 DOI:10.1016/j.jplph.2025.154681

Yadi Chen, Lanxi Shi, Qingtao Xu, Chi Zhang, Li Wang, Weixing Li

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Abstract

Plant secondary metabolites (PSMs), crucial for horticultural crop quality and value, are synthesized in an organ-specific manner and are highly regulated by light. Acting beyond a mere energy source for photosynthesis, light signals are detected by specialized photoreceptors (e.g., phytochromes, cryptochromes, UV RESISTANCE LOCUS 8), triggering signaling cascades that converge on central regulators including the COP1-SPA complex and the transcription factor HY5. These regulators interact with a broad network of transcription factors, such as MYBs, bHLHs, BBXs, and PIFs, as well as epigenetic modifications, to precisely direct the transcriptional programs governing phenylpropanoid, terpenoid, and alkaloid metabolism. This review synthesizes these molecular mechanisms and discusses their implications for designing precise lighting strategies to enhance the quality and value of horticultural products in controlled-environment agriculture, thereby providing a theoretical foundation for light-quality regulation.

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园艺植物中调节苯丙类、萜类和生物碱生物合成的光信号转导网络

植物次生代谢物（psm）是一种对园艺作物品质和价值至关重要的物质，其合成具有器官特异性，并受光照高度调控。光信号不仅仅是光合作用的能量来源，还被专门的光感受器（如光敏色素、隐色素、抗紫外线位点8）检测到，触发信号级联，汇聚到包括COP1-SPA复合物和转录因子HY5在内的中心调节因子上。这些调节因子与广泛的转录因子网络相互作用，如myb、bHLHs、bbx和pif，以及表观遗传修饰，以精确指导控制苯丙素、萜类和生物碱代谢的转录程序。本文综述了这些分子机制，并讨论了它们对设计精确照明策略以提高受控环境农业园艺产品的质量和价值的意义，从而为光质量调控提供理论基础。

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来源期刊

Journal of plant physiology 生物-植物科学

CiteScore

7.20

自引率

4.70%

发文量

196

审稿时长

32 days

期刊介绍： The Journal of Plant Physiology is a broad-spectrum journal that welcomes high-quality submissions in all major areas of plant physiology, including plant biochemistry, functional biotechnology, computational and synthetic plant biology, growth and development, photosynthesis and respiration, transport and translocation, plant-microbe interactions, biotic and abiotic stress. Studies are welcome at all levels of integration ranging from molecules and cells to organisms and their environments and are expected to use state-of-the-art methodologies. Pure gene expression studies are not within the focus of our journal. To be considered for publication, papers must significantly contribute to the mechanistic understanding of physiological processes, and not be merely descriptive, or confirmatory of previous results. We encourage the submission of papers that explore the physiology of non-model as well as accepted model species and those that bridge basic and applied research. For instance, studies on agricultural plants that show new physiological mechanisms to improve agricultural efficiency are welcome. Studies performed under uncontrolled situations (e.g. field conditions) not providing mechanistic insight will not be considered for publication. The Journal of Plant Physiology publishes several types of articles: Original Research Articles, Reviews, Perspectives Articles, and Short Communications. Reviews and Perspectives will be solicited by the Editors; unsolicited reviews are also welcome but only from authors with a strong track record in the field of the review. Original research papers comprise the majority of published contributions.