臭牡丹根提取物的抑菌效果研究  

Study on the Antimicrobial Effect of the Extracts of Clerodendron bungei Roots

作　　者：林娜[1] 尹礼国[1] 陈超众[1] 魏琴[1] 李华兰[1] 

机构地区：[1]宜宾学院生命科学与食品工程学院,四川宜宾644000

出　　处：《安徽农业科学》2009年第32期15884-15886,15898,共4页Journal of Anhui Agricultural Sciences

基　　金：宜宾学院青年基金(QJ05-22);宜宾学院博士启动基金(2005B02)资助

摘　　要：[目的]研究臭牡丹根不同极性溶剂提取物对常见植物病原微生物的抑菌效果。[方法]采用菌饼法研究臭牡丹根的抑菌能力。[结果]臭牡丹根的4种提取物对小麦纹枯病菌、小麦赤霉病菌、水稻纹枯病菌、玉米大斑病菌均具有不同程度的抑菌作用,其中,蒸馏水提取物对小麦纹枯病菌和小麦赤霉病菌的抑菌效果最好,乙醚提取液对小麦赤霉病菌的抑菌效果最好,其最小抑菌浓度都MIC都为10mg/ml。臭牡丹根提取物在pH值5～8的范围内具有不同程度的抑菌作用。[结论]臭牡丹根对4种病原微生物具有较好的抑制效果,其抑菌活性受pH值影响较大。[ Objective] The aim was to research the antimierobia[ effect of the extracts of Clerodendron bungei roots with different solvents on the common plant microbes. [ Method] The bacteria cake method was used to study the antimicrobial capability of Clerodendron bungei roots. [ Result] The extracts have anti-bacterial action on Rhixoctonia cerealis V. Hoeven, Fu^arium graminearum, Rhizoctonia solani and Setospbaeria turcica, especially the extract from distilled water has the strongest anti-bacterial action on Rhixoctonia cerealis V. Hoeven and Fusarium graminearum, the extract from ether has the strongest anti-bacterial action on Fusarium graminearum, the MIC were all 10 mg/ml. The extracts had different antimicrobial effect when pH value was in 5 -8. [ Conclusionj The extracts of Clerodendron bungei roots could inhibit the 4 pathogenic microorganism, and the antibacterial activity was affected by pH value greatly.

关 键 词：臭牡丹根 提取物 抑菌效果 

分 类 号：S567.19[农业科学—中草药栽培]