Linalool:A ubiquitous floral volatile mediating the communication between plants and insects  

作　　者：Ling Zhang Qia-Fan Su Liang-Sheng Wang Meng-Wen Lv Yi-Xuan Hou Shan-Shan Li 

机构地区：[1]Key Laboratory of Plant Resources,Institute of Botany,Chinese Academy of Sciences,100093 Beijing,China [2]China National Botanical Garden,Beijing 100093,China [3]University of Chinese Academy of Sciences,Beijing 100049,China [4]Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding,National Engineering Research Center for Floriculture,College of Landscape Architecture,Beijing Forestry University,Beijing 100083,China [5]College of Forestry,Inner Mongolia Agricultural University,Huhhot 010020,China

出　　处：《Journal of Systematics and Evolution》2023年第3期538-549,共12页植物分类学报（英文版）

基　　金：This study was financially supported by National Key R&D Program of China(2018YFD1000400).

摘　　要：Terpenoids,one of the most important plant volatiles,mediate the communication between plants and pollinators,herbivores as well as pathogens.Recently,researchers have shown intensive interest in the complicated interactions.Linalool,an acyclic monoterpene,is one of the common flavor-related volatiles across the plant kingdom.In this review,we summarized the biosynthesis and transcriptional regulation of terpenoids,and then focused on the biological function of linalool in plant-insect interactions.We found that flowers emitting linalool as the dominant volatile appeal to broad assemblages of pollinators,while some pollinators typically have strong preferences for these flowers as well.Hereinto,moths and bees are the main pollinators of linalool-dominant flowers.Additionally,linalool produced by plants could defend against insect pests and pathogens.It is noteworthy that the two enantiomers of linalool have distinct functions.(S)-(+)-linalool mainly attracts pollinators,while(R)-(-)-linalool seems to act as insect repellents.Further research on the biofunctional diversity and genetic mechanisms of linalool enantiomers will reveal the complexity of plant survival strategies,and the increasing understanding of the molecular mechanisms underlying their biosynthesis and transcriptional regulation will provide theoretical foundation and practical basis for directional transformation of plants.

关 键 词：ANTAGONIST floral volatiles LINALOOL plant-insect interactions POLLINATION 

分 类 号：O62[理学—有机化学]