北京林业大学学报2012，Vol.34Issue(2)：146-154,9.
花香代谢与调控研究进展
Advances in metabolism and regulation of floral scent.
摘要
Abstract
Floral scent is a complex mixture of low molecular weight volatile its unique fragrance. Plant scent is mainly composed of terpenoids, acid derivatives, and compounds containing nitrogen or sulfur. compounds, which gives the flower benzenoids/phenylpropanoids, fatty These volatile compounds act as attractants to pollinators that provide the plant with reproductive benefit. While in plant cells, these compounds could be toxic to those organisms that ingest the plant. Scent substances from the air in the vicinity of the flower are sampled, providing a more realistic image of the volatile profile. Most of the floral scent compounds are emitted from petal epidermal cells or highly specialized secretory structures such as scent glands. The composition of floral scents is changing during the flower lifespan in relation to flower stage and pollination status, endogenous rhythms, environmental conditions. Most floral scent compounds are produced by only a few major biochemical pathways, such as isoprenoid, phenylpropanoid/benzenoid and fatty acid pathways. Traditional biochemical method, homology cloning technology, and genomics approach have been used to clone genes involved in floral scent production. Recent progress in the molecular biology of floral scents offers tools for modification of fragrance in flowering plants, including introducing new genes, regulating the expression of endogenous genes or transcription factors. But many difficulties remain to be overcome.关键词
花香/生物合成途径/节律/基因工程Key words
floral scent/biosynthesis pathway/rhythms/genetic engineering分类
农业科技引用本文复制引用
孔滢,孙明,潘会堂,张启翔..花香代谢与调控研究进展[J].北京林业大学学报,2012,34(2):146-154,9.基金项目
“十一五”国家科技支撑计划课题（2006BAD01A18）、中央高校基本科研业务费专项资金（BLJD200910）. （）
