26种植物乙醇提取物对植物病原菌的抑菌活性  

Antibacterial Activity of Extracts from 26 Kinds of Plants on Plant Pathogens

作　　者：张格杰[1] 何建清[1] 索朗央吉 

机构地区：[1]西藏农牧学院,西藏林芝860000

出　　处：《贵州农业科学》2017年第8期38-41,共4页Guizhou Agricultural Sciences

基　　金：西藏教育厅高校青年教师创新支持计划项目"西藏植物源杀菌剂的筛选与研制"(QC2015-36)

摘　　要：为开发植物源杀菌剂提供依据,采用菌丝生长速率法测定26种植物乙醇提取物对4种植物病原菌的抑制活性。结果表明:在供试质量浓度为100mg/mL时,有12种植物乙醇提取物对番茄灰霉病菌、小麦赤霉病菌、梨黑星病菌和玉米大斑病菌中至少1种病原菌的抑制率达80%以上,其中播娘蒿、黄花草木樨、甘西鼠尾草、香薷、艾草、铁杆蒿和黄花蒿7种植物提取物菌丝生长抑制率均在90%以上。经过抑菌活性复筛,黄花草木樨、艾草、铁杆蒿和黄花蒿4种植物中含有农用抗菌成分且抑菌效果较好,可应用于无公害植物源杀菌剂的开发。The objective of this paper was to study the effects of the ethanol extracts of 26 kinds of plants on four plant pathogens,and to provide a basis for botanical fungicide exploitation.The antifungal activities were tested by mycelium growth rate method.Results：Inhibition rate of 12 plant extracts were more than 80% to one or more tested fungi（Botrytis cinerea,Fusahum graminearum,Venturia piritna,Exserohilum turcicum）as the concentration was 100mg/mL.Among which the inhibition rates of seven plant extracts were above 90%,including Descurainia sophia,Melilotus albus,Salvia przewalskii,Elsholtzia ciliata,Artemisia argyi,Heteropappus ciliosus,Artemisia annua.M.officinalis,A.annua,A.sacrorum and A.argyi had farm-oriented antibiotic constituents,and showed strong antibacterial activity by the secondary screening,which could be exploited as non-pollution botanical fungicides.

关 键 词：植物提取物 抑菌活性 植物源杀菌剂 活性筛选 

分 类 号：S482.2[农业科学—农药学]