Journal article
Authors list: Manosalva, Patricia; Manohar, Murli; von Reuss, Stephan H; Chen, Shiyan; Koch, Aline; Kaplan, Fatma; Choe, Andrea; Micikas, Robert J; Wang, Xiaohong; Kogel, Karl-Heinz; Sternberg, Paul W; Williamson, Valerie M; Schroeder, Frank C; Klessig, Daniel F
Publication year: 2015
Journal: Nature Communications
Volume number: 6
ISSN: 2041-1723
Open access status: Gold
DOI Link: https://doi.org/10.1038/ncomms8795
Publisher: Nature Research
Abstract:
Plant-defense responses are triggered by perception of conserved microbe-associated molecular patterns (MAMPs), for example, flagellin or peptidoglycan. However, it remained unknown whether plants can detect conserved molecular patterns derived from plant-parasitic animals, including nematodes. Here we show that several genera of plant-parasitic nematodes produce small molecules called ascarosides, an evolutionarily conserved family of nematode pheromones. Picomolar to micromolar concentrations of ascr#18, the major ascaroside in plant-parasitic nematodes, induce hallmark defense responses including the expression of genes associated with MAMP-triggered immunity, activation of mitogen-activated protein kinases, as well as salicylic acid-and jasmonic acid-mediated defense signalling pathways. Ascr#18 perception increases resistance in Arabidopsis, tomato, potato and barley to viral, bacterial, oomycete, fungal and nematode infections. These results indicate that plants recognize ascarosides as a conserved molecular signature of nematodes. Using small-molecule signals such as ascarosides to activate plant immune responses has potential utility to improve economic and environmental sustainability of agriculture.
Citation Styles
Harvard Citation style: Manosalva, P., Manohar, M., von Reuss, S., Chen, S., Koch, A., Kaplan, F., et al. (2015) Conserved nematode signalling molecules elicit plant defenses and pathogen resistance, Nature Communications, 6, Article 7795. https://doi.org/10.1038/ncomms8795
APA Citation style: Manosalva, P., Manohar, M., von Reuss, S., Chen, S., Koch, A., Kaplan, F., Choe, A., Micikas, R., Wang, X., Kogel, K., Sternberg, P., Williamson, V., Schroeder, F., & Klessig, D. (2015). Conserved nematode signalling molecules elicit plant defenses and pathogen resistance. Nature Communications. 6, Article 7795. https://doi.org/10.1038/ncomms8795
