植物提取物对大豆疫霉菌抗菌活性的初步研究  

Antibacterial Activities of the Plant Extracts against Phytophthora sojae

作　　者：潘俊[1] 石瑶[1] 徐明[1] 李智敏[1] 王瀚墨[1] 田浩[1] 李晚谊[1] 

机构地区：[1]云南省农业科学院药用植物研究所,昆明650223

出　　处：《天然产物研究与开发》2011年第2期212-218,共7页Natural Product Research and Development

基　　金：云南药用植物提取物资源库的构建(中韩合作课题);云南省自然科学基金(2007C119M)

摘　　要：采用Paper Disk法测定了云南省200种植物的提取物对大豆疫霉(Phytophthora sojae)的抑菌活性。结果表明,光叶合欢(Albizia lucidior)、白钩藤(Uncaria sessilifructus)及黄豆树(Albizia procera)的提取物在浓度为10μg/μL时有较好的抗菌活性,而在2.5μg/μL时只有黄豆树提取物显示出抗菌活性。并从黄豆树中分离出其抗菌的主要活性成分3-O-[α-L-arabinopyranosyl-(1→2)-β-D-fucopyranosyl-(1→6)-2-acetamidO-2-deoxy-β-D-glu-copyranosyl]echinocystic acid。Antibacterial activities of 200 kinds of plant extracts against Phytophthora sojae were tested by means of Paper Disk method.As a result,the extracts of Albizia lucidior,Uncaria sessilifructus,and Albizia procera exhibited moderate inhibitory actions at the concentration of 10 μg/μL,while only the latter showed antibacterial activity at 2.5 μg/μL.Moreover,3-O-[α-L-arabinopyranosyl-（1→2）-β-D-fucopyranosyl-（1→6）-2-acetamidO-2-deoxy-β-D-glucopyranosyl] echinocystic acid,the main active ingredient was isolated from Albizia procera.

关 键 词：植物提取物 疫霉菌 大豆疫霉 抗菌活性 天然产物 

分 类 号：S482.292[农业科学—农药学]