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Acta Horticulturae Sinica ›› 2025, Vol. 52 ›› Issue (8): 2270-2290.doi: 10.16420/j.issn.0513-353x.2024-0845

• Reviews • Previous Articles    

Research Progress on the Regulation Mechanism of Linalool Synthesis and Its Ecological Functions

FENG Lingjia, LIU Yujie, HE Lintong, WANG Xinchao, and YE Meng*()   

  1. Tea Research InstituteChinese Academy of Agricultural Sciences,National Center for Tea Plant Improvement,State Key Laboratory of Tea Plant Germplasm Innovation and Resource Utilization,Key Laboratory of Biology,Genetics and Breeding of Special Economic Animals and Plants,Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China
  • Received:2024-11-02 Revised:2025-06-18 Online:2025-08-25 Published:2025-08-19
  • Contact: and YE Meng

Abstract:

Linalool is an important monoterpene secondary metabolite in plants,widely present in flowers,fruits,leaves,stems and roots. Its biosynthesis mainly occurs in plastids via the MEP pathway and is regulated by multiple molecular mechanisms,including transcriptional,epigenetic,and post-transcriptional controls. As a key component of plant aroma,linalool plays a significant role in the ecological interactions between plants,pollinators,herbivorous insects,and their natural enemies. In addition,linalool is involved in plant defense responses against pathogens and abiotic stresses. This review summarizes the pathways and regulatory mechanisms of linalool synthesis,providing a comprehensive overview of its ecological functions in attracting pollinators,resisting pests and diseases,and responding to abiotic stress. The review also explores the significance of linalool in plant adaptation to complex environments. Furthermore,it discusses the regulatory effects of linalool in field ecosystems,the functional specificity of individual enantiomers and their derivatives,and the synergistic mechanisms in response to multiple stresses,with the aim of providing theoretical support and technical guidance for the green agricultural applications of horticultural crops.

Key words: linalool, terpenoid secondary metabolites, biosynthesis, regulation, ecological function