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Molecules 2002, 7(11), 817-832; doi:10.3390/71100817
Article

Phytoalexin Accumulation in Colombian Bean Varieties and Aminosugars as Elicitors

, , , ,  and *
Institute of Chemistry, Universidad de Antioquia, P.O. Box. 1226, Medellin, Colombia
* Author to whom correspondence should be addressed.
Received: 1 September 2002 / Revised: 15 November 2002 / Accepted: 22 November 2002 / Published: 30 November 2002
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Abstract

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.
Keywords: Phaseolus vulgaris; cultivars; phytoalexins; resistance/susceptibility; elicitors Phaseolus vulgaris; cultivars; phytoalexins; resistance/susceptibility; elicitors
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Durango, D.; Quiñones, W.; Torres, F.; Rosero, Y.; Gil, J.; Echeverri, F. Phytoalexin Accumulation in Colombian Bean Varieties and Aminosugars as Elicitors. Molecules 2002, 7, 817-832.

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