https://www.ahs.ac.cn/images/0513-353X/images/top-banner1.jpg|#|苹果
https://www.ahs.ac.cn/images/0513-353X/images/top-banner2.jpg|#|甘蓝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner3.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner4.jpg|#|灵芝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner5.jpg|#|桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner6.jpg|#|黄瓜
https://www.ahs.ac.cn/images/0513-353X/images/top-banner7.jpg|#|蝴蝶兰
https://www.ahs.ac.cn/images/0513-353X/images/top-banner8.jpg|#|樱桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner9.jpg|#|观赏荷花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner10.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner11.jpg|#|月季
https://www.ahs.ac.cn/images/0513-353X/images/top-banner12.jpg|#|菊花

园艺学报 ›› 2026, Vol. 53 ›› Issue (2): 359-385.doi: 10.16420/j.issn.0513-353x.2025-0815

• 综述 • 上一篇    下一篇

观赏植物花香性状形成及调控机制研究进展

王芳, 范燕萍*()   

  1. 华南农业大学园艺学院/花卉研究中心,广州 510642
  • 收稿日期:2025-09-03 修回日期:2025-11-09 出版日期:2026-02-25 发布日期:2026-02-12
  • 基金资助:
    广东省乡村振兴战略专项(2024-NPY-00-38); 广东省重点研发项目(2020B020220007)

Molecular Insights into the Formation and Regulation of Floral Scent Traits in Ornamental Plants

WANG Fang, FAN Yanping()   

  1. College of Horticulture/Flower Research Center,South China Agricultural University,Guangzhou 510642,China
  • Received:2025-09-03 Revised:2025-11-09 Published:2026-02-25 Online:2026-02-12

摘要:

花香是植物、环境及生物体进行信息交流的重要信号,其主要由花部组织释放的多种挥发性有机化合物(VOC)构成,包括萜类、苯丙素/苯类化合物及脂肪酸衍生物等。花香物质的合成涉及多条代谢途径,且在不同发育阶段和组织部位呈现显著的时空动态特征,其生物合成受关键酶基因、转录因子、激素信号及环境因子的协同调控。以萜类化合物为主要香气成分的观赏植物中,萜类合成酶(TPS)家族和多个数量性状位点(QTL)决定了花香成分的多样性与特异性。随着多组学和分子育种技术的发展,转基因与基因编辑技术(如CRISPR/Cas9)在花香性状改良中展现出巨大潜力,同时,利用微生物“细胞工厂”合成天然产物为实现花香物质的规模化与可持续生产提供了新思路。本文中系统综述了植物花香的主要化学成分与代谢途径、释放的时空调节机制及其关键基因和调控网络,并展望了花香分子育种与产业化应用的发展方向。本综述旨在为花香形成的分子机制研究提供理论参考,并为其在观赏植物改良与相关产业中的应用提供新的视角。

关键词: 花香, 挥发性有机化合物, 代谢通路, 转录因子, 分子育种

Abstract:

Floral scent serves as a crucial signal mediating interactions between plants,their environment,and other organisms. It is predominantly composed of diverse volatile organic compounds(VOC)emitted from floral tissues,including terpenoids,phenylpropanoids/benzenoids,and fatty acid derivatives. The biosynthesis of floral volatiles involves multiple metabolic pathways and exhibits pronounced spatiotemporal dynamics across different developmental stages and floral tissues. This process is coordinately regulated by key enzyme-encoding genes,transcription factors,hormonal signaling,and environmental cues. In ornamental plants where terpenoids dominate the floral bouquet,members of the terpene synthase(TPS)gene family,together with several quantitative trait loci(QTL),largely determine the diversity and specificity of floral scent composition. With the rapid advancement of multi-omics and molecular breeding technologies,transgenic approaches and genome editing tools,such as CRISPR/Cas9,have shown great potential for modifying floral scent traits. Concurrently,microbial“cell factory” systems offer promising strategies for the scalable and sustainable production of natural floral volatiles. This review provides a comprehensive overview of the major chemical constituents and metabolic pathways underlying floral scent in plants,as well as the spatiotemporal regulation of volatile emission and the associated key genes and regulatory networks. Finally,it further discusses recent advances and future prospects in the molecular breeding and industrial applications of floral scent. The review aims to offer a theoretical framework for understanding the molecular mechanisms of scent formation and to provide new perspectives for its application in ornamental plant improvement and related industries.

Key words: floral scent, volatile organic compound, metabolic pathway, transcription factor, molecular breeding