Yifan Jiang, Wanbo Zhang, Xinlu Chen, Weijiao Wang, Tobias G. Köllner, Sumei Chen, Fadi Chen, F. Chen
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引用次数: 6
Abstract
Abstract Chrysanthemum is a significant genus belonging to one of the largest plant families, the Asteraceae. Among the over 40 recognized species, C. morifolium is best-known for its long history of cultivation and countless varieties. Like some other genera of this family, many Chrysanthemum species are producers of high levels of secondary metabolites. This review focuses on the largest class of plant secondary metabolites, namely terpenoids produced by Chrysanthemum species. An extensive literature search revealed a total of 390 terpenoids from these species, which include 183 monoterpenoids and 207 sesquiterpenoids. While some terpenes are produced by almost all of the investigated varieties/species of Chrysanthemum, many terpenoids show specificity to certain varieties or species, indicating species-specific functions. The enzymes and genes participating in the pathways for terpene biosynthesis are also described. In addition to a general overview, in this review we focus on isoprenyl diphosphate synthases and terpene synthases, two enzyme classes pivotal for generating the chemical diversity of terpenes, as established by our analysis of two sequenced genomes of Chrysanthemum. While our knowledge about the biological functions of terpenoids in Chrysanthemum is limited, we discuss their functions in chemical defenses against insects and microbial pathogens. Finally, we present the prospects of understanding the molecular basis of terpene biosynthesis in Chrysanthemum and elucidating its biological significance, as well as the prospects of translational research on terpene-based applications.
期刊介绍:
Critical Reviews in Plant Sciences focuses on presenting in-depth and up-to-date reviews of timely and/or cutting-edge subjects in the broad discipline of plant science, ranging from molecular biology/biochemistry through the areas of cell biology, plant pathology and physiology, genetics, classical botany, and ecology, to practical agricultural applications. Articles in the journal provide an up-to-date literature base for researchers and students, pointing the way towards future research needs. The journal is also a significant source of credible, objective information to aid decision makers at all levels.