广西植物Issue(6)：878-882,800,6.DOI:10.3969/j.issn.1000-3142.2013.06.029
肿柄菊挥发油的化学成分分析及其化感作用
Chemical constituents and allelopathy of Tithonia diversifolia volatile oil
摘要
Abstract
Volatile oil was obtained from above ground part of Tithonia diversifolia by steam distillation method,and the main chemical components in the volatile oil were identified by gas chromatography-mass.Allelopathy of volatile oil from T.diversifolia on seed germination and seedling growth of 5 co-occuring plant species,Eupatorium catari-um,Mimosa diplotrich,Mimosa pudica,Clitoria ternatea,Bidens pilosa was studied in a semi-closed container.50 compounds were identified,accounting to 94.79% of the total detected constituents.The main components wereα-Pi-nene(63.81%),Limonene(7.07%),β-Caryophyllene(4.85%),Bicyclogermacrene(2.95%),Sabinene(2.78%),and Spathulenol(2.702%),which accounted for 94.15%of the total amount of the essential oil samples.Terpenes accoun-ted for 86.01% of the total.The bioassay test results demonstrated that volatile oil of T.diversifolia could inhibit the seed germination and growth of all tested plant.The inhibitory effects on Mimosa diplotricha was the largest, while Mimosa pudica and Clitoria ternatea were relatively small.These results indicated that volatile oil of T.diver-sifolia played a certain alllopathy invasive in invasion of diffusion.关键词
肿柄菊/挥发油/化感物质/化感作用Key words
Tithonia diversifolia/volatile oil/allelopathy/allelochemicals分类
农业科技引用本文复制引用
李晓霞,沈奕德,范志伟,黄乔乔,程汉亭,刘丽珍..肿柄菊挥发油的化学成分分析及其化感作用[J].广西植物,2013,(6):878-882,800,6.基金项目
国家自然科学基金(31071699) （31071699）
国家科技部国际合作项目(2011DFB30040) （2011DFB30040）
公益性行业(农业)科研专项(201103027) （农业）
