某些唇形科植物精油对植物病原真菌的体外抑制活性

In vitro inhibition activity of essential oils from some Lamiaceae species against phytopathogenic fungi.

作者信息

Kumar Vinod, Mathela C S, Tewari A K, Bisht K S

机构信息

Department of Chemistry, Kumaun University, Nainital 263 002, Uttarakhand, India.

出版信息

Pestic Biochem Physiol. 2014 Sep;114:67-71. doi: 10.1016/j.pestbp.2014.07.001. Epub 2014 Jul 11.

DOI:10.1016/j.pestbp.2014.07.001

PMID:25175652

Abstract

Natural products have been in focus as alternative, effective and safe materials against the phytopathogens. Investigations show Nepeta oils as effective in controlling the food crops decay. The inhibitory effects of essential oils derived from Nepeta leucophylla, Nepeta ciliaris, Nepeta clarkei and Calamintha umbrosa against five phytopthogenic fungi have been determined. In vitro antifungal activity varied with their constituents and target species. More active being the oils containing oxygenated terpenoids. Helminthosporium maydis was sensitive to the all oils, IC50 values have 43.6-109.3 μg mL(-1). The N. leucophylla oil possessing oxygenated iridoids was more effective against H. maydis (IC50 value of 43.6 μg mL(-1)) while N. ciliaris was more active against Fusarium oxysporum (IC50 value of 219.2 μg mL(-1)). The oils were effective against the spore germination of all the tested plant pathogens.

摘要

天然产物作为对抗植物病原体的替代、有效且安全的材料一直备受关注。调查表明荆芥油在控制粮食作物腐烂方面有效。已测定了来自白毛荆芥、睫毛荆芥、克拉克荆芥和伞花新风轮菜的精油对五种植物病原真菌的抑制作用。体外抗真菌活性因其成分和目标物种而异。含氧化萜类化合物的油活性更强。玉米长蠕孢对所有油都敏感，IC50值为43.6 - 109.3 μg mL(-1)。含有氧化环烯醚萜的白毛荆芥油对玉米长蠕孢更有效（IC50值为43.6 μg mL(-1)），而睫毛荆芥对尖孢镰刀菌更具活性（IC50值为219.2 μg mL(-1)）。这些油对所有测试植物病原体的孢子萌发都有效。