摘要
为了明确植物源活性成分芪类化合物在农业病害防治中的前景,在离体条件下分别测定了白藜芦醇(Ⅰ)及其衍生物(Ⅱ～Ⅴ)对植物病原真菌菌丝生长的抑制作用以及对菌丝形态和孢子萌发的影响,采用叶片法和温室盆栽法研究了白藜芦醇的防病作用原理。结果表明:5个供试化合物对6种供试病原菌的菌丝生长均有不同程度的抑制作用,但均对番茄早疫病菌Alternaria solani的抑制活性最高,其中又以3,5-二羟基-4'-甲氧基二苯乙烯(Ⅲ)的抑制活性最高;白藜芦醇可造成番茄早疫病菌菌丝体畸形,并可抑制该病菌孢子的萌发,但未引起孢子形态改变。叶片法和温室盆栽法试验的结论一致,即白藜芦醇能够抑制病原菌的侵染,对植株起到一定的保护作用。
In order to clear the prospects of stilbene compounds in agricultural disease prevention and treatment,effects of resveratrol（Ⅰ）and its derivatives（Ⅱ-Ⅴ）on mycelial growth,mycelial morphology,and spore germination were tested in vitro and disease prevention principles were studied in vivo by using leaf method and pot-culture method.Results showed that 5 tested compounds had different degrees of inhibition effects on mycelial growth of 6 tested pathogens,especially to A.solani,in which 3,5-dihydroxy-4′-methoxy-stilbene（Ⅲ） showed higher inhibitory activity than other compounds.Resveratrol caused mycelial malfornation and inhibited the spore germination with no changes in morphology of A.solani.There was a conclusion that resveratrol can inhibit the infection of A.solani and play a protective action in vivo.
出处
《农药学学报》
CAS
CSCD
北大核心
2012年第3期283-290,共8页
Chinese Journal of Pesticide Science
关键词
白藜芦醇
衍生物
植物病原真菌
抑制活性
resveratrol
analogues
phytopathogenic fungi
inhibition activity
