Phytoalexin Accumulation in Colombian Bean Varieties and Aminosugars as Elicitors
Open Access
- 29 November 2002
- Vol. 7 (11), 817-832
- https://doi.org/10.3390/71100817
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
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