Nematode ascaroside enhances resistance in a broad spectrum of plant–pathogen systems

• DOI: 10.1111/jph.12795
• Publication Date: 2019-03-18T23:31:17Z
• Authors: Daniel F. Klessig; Murli Manohar; Shine Baby; Aline Koch; Wiseborn B. Danquah; Emily Luna; Hee‐Jin Park; Judith M. Kolkman; B. Gillian Turgeon; Rebecca Nelson; Jan E. Leach; Valerie M. Willia...; Karl‐Heinz Kogel; Aardra Kachroo; Frank C. Schroeder
• Keywords: Jasmonic acid; Systemic Acquired Resistance; Broad spectrum

Abstract Recognition of specific molecule signatures microbes, including pathogens, induces innate immune responses in plants, as well animals. Analogously, a nematode pheromone, the ascaroside ascr#18, hallmark plant defences activation (a) mitogen‐activated protein kinases, (b) salicylic acid‐ and jasmonic acid‐mediated defence signalling pathways (c) gene expression provides protection to broad spectrum pathogens. Ascr#18 is member an evolutionarily conserved family molecules major secreted by plant–parasitic nematodes. Here, we report effects ascr#18 on resistance four economically important crops: maize, rice, wheat soybean some their associated Treatment with low nanomolar micromolar concentrations provided from partial strong seven eight plant–pathogen systems tested viruses, bacteria, fungi, oomycetes This research may have potential improve agricultural sustainability reducing use potentially harmful agrochemicals enhance food security worldwide.