Phytoalexin Accumulation in Colombian Bean Varieties and Aminosugars as Elicitors

Molecules

Diego Durango¹  Winston Quiñones¹  Fernando Torres¹  Yoni Rosero¹  Jesús Gil¹ 

[1] id="af1-molecules-07-00817">Institute of Chemistry, Universidad de Antioquia,  P.O. Box. 1226, Medellin, Colombia, Tel. [phone]; Fax: [phone]

关键词: Phaseolus vulgaris;    cultivars;    phytoalexins;    resistance/susceptibility;    elicitors;   

DOI  :  10.3390/71100817

来源: mdpi

【 摘 要 】

The accumulation of isoflavonoid phytoalexins was studied in several Colombian bean cultivars resistant and susceptible to Colletotrichum lindemuthianum fungus, the causal agent of anthrachnose disease. A time-course accumulation analysis on seedlings treated with CuCl₂ showed that phaseollin production was higher in resistant cultivars than in susceptible ones. Also, a defensive role of phytoalexins was demostrated when extracts containing this pterocarpan exhibited antifungal activity against C. lindemuthianum.  In addition, the elicitor activity of some aminosugars was also established.

【 授权许可】

Unknown   
© 2002 by MDPI (http://www.mdpi.org).