胡桃醌及其衍生物5,8-二羟基-1,4-萘醌抑菌活性研究  

Antifungal activity of juglone and its derivative 5,8-dihydroxy-1,4-naphthoquinone

作　　者：全炳武[1] 李翔国[1] 玄伟[1] 刘海峰[1] 田官荣[1] Park HoYong 

机构地区：[1]长白山生物功能因子省部共建教育部重点实验室延边大学,延吉133002 [2]韩国生命工学研究院昆虫资源研究室

出　　处：《植物保护》2007年第2期81-84,共4页Plant Protection

基　　金：延边大学长白山生物功能因子省部共建教育部重点实验室和韩国生命工学研究院2005年度合作研究课题

摘　　要：以红景天立枯病菌(Rhizoctonia solani Kühn)等12种病原真菌为供试靶标,测试了胡桃醌(5-羟基-1,4-萘醌)及其衍生物5,8-二羟基-1,4-萘醌的抑菌活性。结果表明:两者对丝核菌属病原真菌菌丝生长的抑制作用大于镰刀属,对3种丝核菌属病原真菌的EC50分别为10.63～15.88mg/L、9.79～14.69mg/L;两者对玉米小斑病菌孢子萌发的抑制作用最高,在12.5mg/L时,抑制率均达到60%以上;在50mg/L时,对镰刀属4种病原真菌孢子萌发抑制率均达到60%。The antifungal activity of j uglone and its derivative, 5,8-dihydroxy-1,4-naphtho-quinine, was tested against 12 pathogenic fungi. Both of the compounds showed higher inhibition effects on the growth of the mycelia of Rhizoctonia than on that of Fusarium oxysporum f, sp. The EC50 values of juglone and 5,8-dihydroxy-1,4-naphthoquinine against the 3 fungi of Rhizoctonia were 10. 63-15.88 mg / L and 9. 79-14.69 mg / L, respectively. Both of them exhibited the highest inhibitory effects on conidial germination of Bipolaris rnaydis, and their inhibitory rates were more than 60% at the concentration of 12. 5 mg / L. The inhibitory rates of the 4 pathogenic fungi of Fusarium were about 60% at the dosage of 50 mg / L.

关 键 词：抑菌活性 胡桃醌 5 8-二羟基-1 4-萘醌 

分 类 号：S482.292[农业科学—农药学]