大蒜粗提物对烟草黑胫病菌的室内抑制作用  

Inhibitory Effects of Garlic Extract on Phytophthora parasitica var. nicotianae in Laboratory

作　　者：赖荣泉[1,2,3] 姜林灿 陈志敏[4] 周东新[2,3] 周道金[2,3] 

机构地区：[1]福建农林大学应用生态研究所,福州市金山350002 [2]福建省烟草公司龙岩市公司,龙岩市龙岩大道288号364000 [3]福建省烟草农业科学研究所龙岩分所,龙岩市龙岩大道288号364000 [4]福建农林大学生物农药与化学生物学教育部重点实验室,福州市金山350002

出　　处：《烟草科技》2009年第9期62-64,共3页Tobacco Science & Technology

基　　金：中国烟草总公司福建省公司项目"间套种大蒜对烟草病虫害的控制作用及其化感作用研究"(2009009)

摘　　要：采用平板抑菌法测定了大蒜乙醇和水提取物对烟草黑胫病菌的抑菌效果。结果表明:大蒜提取物对烟草黑胫病菌有显著抑制作用,且随大蒜提取物浓度的增大而增强;大蒜乙醇提取物对烟草黑胫病菌的抑制作用优于水提取物。0.2g/mL和0.3g/mL浓度大蒜乙醇提取物对烟草黑胫病菌的抑制率均为100.00%;而0.3g/mL浓度的大蒜水提取物的抑制率亦为100.00%;大蒜水提取物与乙醇提取物的有效抑制中浓度分别为0.04g/mL和0.03g/mL。因此,可尝试以大蒜为原料研制植物保护剂来防治烟草黑胫病。The inhibitory effects of ethanol or water extract from garlic on Phytophthora parasitica were deter- mined by a bacteriostatic method on agar plates. The results indicated that： garlic extracts, particularly the ethanol extract could obviously inhibit Phytophthora parasitica, the inhibitory effects improved with the ncrease of extract＇ s concentrations. The inhibition rates of ethanol extracts at the concentrations of 0. 20 and 0.30 g/mL were 100.00% ; that of water extract at the concentration of 0.30 g/mL was 100.00%. The EC50 of water and ethanol extracts were 0.04 and 0.03 g/mL, respectively. It suggested that garlic might be a potential raw material in developing Phytophthora parasitica inhibitor.

关 键 词：烟草 黑胫病菌 大蒜 提取物 抑制作用 

分 类 号：TS414[农业科学—烟草工业]