The natural alkamide affinin actives the priming of common bean (Phaseolus vulgaris L.) plants, and induces the JA and SA pathways
M. RICO (1), R. ALVAREZ (1) (1) CINVESTAV, Mexico

Priming is a defense condition of plants that allows them respond faster and more efficiently against pathogens or abiotic factors1. Salicylic acid analogs activate the priming mechanism. There may be more compounds with similar activity or with other properties improving defense mechanisms. In this study, we analyzed the natural alkamide affinin obtained from Heliopsis longipes L, which has fungistatic and bacteriostatic properties2. N-isobutyl-decanamide, an analog of affinin3, induces the jasmonic acid pathway and protects the plant against necrotrophic pathogens. We found that the infection with the phytopathogen bacteria Pseudomonas syringae pv phaseolicola of common bean (Phaseolus vulgaris L.) plants, previously sprayed with 600mM affinin, inhibits the bacteria proliferation (0 UFC, p<0.05) compared the control infected plants (2x106 UFC, p<0.05). The GC/EIMS analytical results showed that salicylic and jasmonic acid pathways were induced when the pathogen infected plants previously treated with affinin.

Abstract Number: P17-598
Session Type: Poster