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Floral Scent Biosynthesis and Its Regulation in Petunia(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年01
Page:
181-185
Research Field:
Publishing date:

Info

Title:
Floral Scent Biosynthesis and Its Regulation in Petunia
Author(s):
LIU LuXIAO ZhinaLIU FeiLIU JuanxuYU Yixun
(College of Forestry and Landscape Architecture,South China Agricultural University,Guangzhou,Guangdong 510642)
Keywords:
Petunia hybridafloral scent biosynthesistranscription factorMYB gene familyshikimate pathway
PACS:
-
DOI:
10.11937/bfyy.201601047
Abstract:
Plant fragrances consist of terpenoids,benzenoids,and fatty acid derivatives.Floral scent is the important character for ornamental plant and has become one of hot points of research field.Petunia is the model plant in many research fields,including flower scent.Petunia ‘Mitchell’ predominantly emits volatile phenylpropanoid/benzenoids.The shikimate pathway links carbohydrate metabolism to the synthesis of aromatic amino acids,which could in turn act as precursors for various primary and secondary metabolites,such as benzenoids.In Petunia,some enzymes of the volatile phenylpropanoid/benzenoid pathway have been shown to mainly be present in the epidermal cells of petals.Synthesis of floral scent in petunia is typical circadian rhythm and is regulated by ethylene.In addition,recent reports show that some R2R3 MYB transcription factor play important roles in regulation synthesis of floral scent in petunia.In this paper,the characters and the key enzymes of flower scent biosynthesis,and the trans-factors of its regulation were reviewed in order to contribute to improving the traits of the floral scent in ornamental plants.

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Last Update: 2016-03-02