摘要
采用离体的试验方法测定了菊苣根的石油醚、乙酸乙酯和乙醇提取物对7种植物病原真菌和3种细菌的抑制活性。采用盆栽试验方法测定了菊苣根提取物对小麦白粉病的防治效果。结果表明,乙醇和乙酸乙酯提取物均有一定的抑制植物病原真菌和细菌活性。且乙酸乙酯提取物效果更佳。在10 g.L-1浓度下,乙酸乙酯提取物能显著抑制小麦赤霉病菌、玉米大斑病菌和烟草赤星病菌3种病原真菌菌丝的生长,抑制率均在85%以上;对小麦根腐病菌、玉米大斑病菌和烟草赤星病菌的孢子萌发抑制率也均在80%以上;对枯草芽孢杆菌和金黄色葡萄球菌的抑菌圈直径达21.01 mm和17.23 mm;对盆栽小麦白粉病的预防和治疗作用分别为50.93%和65.82%。
The anti-microbial activities of petroleum ether,ethyl acetate and ethanol extracts from Cichoriurn intybus L. roots to seven pathogenic fungi and three pathogenic bacteria were in vitro measured and the performances of the extracts from Cichoriurn intybus L. roots in preventing and controlling wheat powdery mildew were investigated through pot experiment. The results showed that ethyl acetate and ethanol extracts presented certain inhibitory effects on the pathogenic fungi and bacteria and ethyl acetate extract performed better. Ethyl acetate extract at 10 g · L^-1 could significantly inhibit wheat scab,corn northern leaf blight and tobacco brown spot in hypha growth by more than 85%,and wheat root rot,corn northern leaf blight and tobacco brown spot in spore germination by more than 80% ;it could form the inhibition zones of 21.01 mm and 17.23 mm to Bacillus subtilis and Staphylococcus aureus, respectively,and prevented and controlled powdery mildew of pot planted wheat by 50.93% and 65.82% ,respectively.
出处
《西北植物学报》
CAS
CSCD
北大核心
2006年第3期615-619,共5页
Acta Botanica Boreali-Occidentalia Sinica
基金
陕西省攻关项目"优质高效草食畜牧业综合技术研究及产业化"(2002K01-G5-1)
关键词
菊苣
提取物
抑菌活性
Cichorium intybus L.
extract
anti-microbial activity
