SHEN Xiao-hui.Inhibitory Effect of 5-Bromomethyl-2(5H)-Furanone against Several Pathogene[J].HEILONGJIANG AGRICULTURAL SCIENCES,2010,(10):63-65.
溴代白头翁素对几种植物病原真菌的抑制作用
- Title:
- Inhibitory Effect of 5-Bromomethyl-2(5H)-Furanone against Several Pathogene
- 文章编号:
- 1002-2767（2010）10-0063-03
- Keywords:
- 5-Bromomethyl-2(5H)-Furanone; antibacterial activity; growth rate method; spore germination method
- 分类号:
- S482.2+92
- 文献标志码:
- A
- 摘要:
- 利用白头翁植物体中的原白头翁素(性质不稳定)人工合成的前体溴代白头翁素对6种植物病原真菌进行了菌丝生长速率和孢子萌发试验。结果表明：溴代白头翁素对病原真菌具有很高的抑制效果，在浓度为1 000.000和500.000 m·L-1时，该药剂对所供试的病原真菌的菌丝生长抑制率均为100%，其中对黄瓜菌核病菌的抑制效果最好，EC50为26.810 mg·L-1，当浓度为125.000 mg·L-1时，除对烟草赤星病菌菌丝生长抑制率为41.07%外，对其它供试病原菌菌丝生长抑制率均在60%以上，当浓度降到15.625 mg·L-1时，对所有供试病菌菌丝生长抑制率均低于10%；该药剂对供试病原菌孢子萌发具有很高抑制效果，当浓度为125.000 mg·L-1时溴代白头翁素对所供试的病原真菌孢子萌发抑制率均为100%，对病菌孢子萌发抑制效果都好于常用的商品药剂，当浓度降到31.250 mg·L-1时对供试的病原菌的孢子萌发抑制率仍高于50%。
- Abstract:
- 5-Bromomethyl-2(5H)-Furanone is forebody of Protoanemonin that is tested to the 6 kinds of the hypha of plant pathogene fungus.The results showed:5-Bromomethyl-2(5H)-Furanone had higher inhibition rate.The inhibition rate was 100% at concentration of 1 000.000 and500.000 mg·L-1 in all the provided pathogene.It had highest inhibition rate to Sclerotinia sclerotiorum(Lib.)de Bary,the EC50 was 26.810 mg·L-1.When the concentration was 125.000 mg·L-1,the inhibition were more that 60% except Alternaria alternata(Fries) Keissler which was 41.07%;When the concentration was 15.625 mg·L-1,all the inhibition rate were under 10%;The agentia had high inhibition rate to spore germination,when the concentration was 125.000 mg·L-1,the spore germination inhibition rate were 100%,and higher than commercial agentia,when the concentration was31.250 mg·L-1 ,the spore germination inhibition rate were still higher than 50%.
参考文献/References:
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备注/Memo
基金项目：黑龙江省农业科学院青年基金