Xiang L, Milc J A, Pecchioni N, Chen L-Q
Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, 430070, PR China.
Biochemistry (Mosc). 2007 Apr;72(4):351-8. doi: 10.1134/s0006297907040013.
It is generally assumed that compounds are emitted from flowers in order to attract and guide pollinators. Due to the invisibility and the highly variable nature of floral scent, no efficient and reliable methods to screen for genetic variation have been developed. Moreover, no convenient plant model systems are available for flower scent studies. In the past decade, several floral fragrance-related genes have been cloned; the biosynthesis and metabolic engineering of floral volatiles have been studied with the development of biotechnology. This review summarizes the reported floral fragrance-related genes and the biosynthesis of floral scent compounds, introduces the origin of new modification enzymes for flower scent, compares different methods for floral fragrance-related gene cloning, and discusses the metabolic engineering of floral scent. Finally, the perspectives and prospects of research on floral fragrance are presented.
一般认为，化合物从花朵中释放出来是为了吸引和引导传粉者。由于花香的不可见性和高度可变的性质，尚未开发出有效且可靠的筛选遗传变异的方法。此外，目前尚无用于花香研究的便捷植物模型系统。在过去十年中，已经克隆了几个与花香相关的基因；随着生物技术的发展，对花香挥发物的生物合成和代谢工程进行了研究。本文综述了已报道的与花香相关的基因以及花香化合物的生物合成，介绍了花香新修饰酶的来源，比较了与花香相关基因克隆的不同方法，并讨论了花香的代谢工程。最后，展望了花香研究的前景。
