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Antifungal activity of five solanaceous glycoalkaloids and their mixtures against phytopathogenic fungi Cercosporella brassicae and Alternaria porri
ZHAO Xue-song 1 #,GAO Ling 2,WANG Juan 2,XU Wenjing 3,BI Hongtao 2,ZHOU Yi-fa 2 *
1.1School of Life Sciences, Northeast Normal University, Changchun 130024, China;
2.School of Life Sciences, Northeast Normal University, Changchun 130024
3.Jilin Academy of Agricultural Sciences, Changchun 130124, China
*Correspondence author
#Submitted by
Subject:
Funding: 教育部博士点基金,吉林省自然科学基金(No.20070200004,20040546)
Opened online:22 July 2008
Accepted by: none
Citation: ZHAO Xue-song,GAO Ling,WANG Juan.Antifungal activity of five solanaceous glycoalkaloids and their mixtures against phytopathogenic fungi Cercosporella brassicae and Alternaria porri[OL]. [22 July 2008] http://en.paper.edu.cn/en_releasepaper/content/22992
 
 
The antifungal activity of five solanaceae glycoalkaloids solanine, chaconine, solasonine, solamargine and tomatine against phytopathogenic fungi Cercosporella brassicae and Alternaria porri has been evaluated. Tomatine showed the highest antifungal activity against C. brassicae and A. porri among five compounds, followed with chaconie, solamargine and solasonine, while solanine showed the lowest antifungal activity. Mixture of potato glycoalkaloids solanine and chaconine produced marked synergistic antifungal activity. The magnitude of synergisms is higher at lower concentrations than that at higher concentrations. The antifungal activity of individual glycoalkaloid against A.porri was relative low, even no activity, but the mixture of chaconine and solanine show significant synergism. There was no synergism between glycoalkaloids solasonine and solamargine from Solanum nigrum in inhibiting fungul growth. The mixtures of solamargine and chaconine, and solasonine and solanine both caused additive inhibition on the growth of fungi.
Keywords:ifungal activity; glycoalkaloids; Cercosporella brassicae; Alternaria porri; synergism.
 
 
 

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