We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
The Arabidopsis NUCLEUS- AND PHRAGMOPLAST-LOCALIZED KINASE1-Related Protein Kinases Are Required for Elicitor-Induced Oxidative Burst and Immunity.
- Authors
Savatin, Daniel Valentin; Bisceglia, Nora Gigli; Marti, Lucia; Fabbri, Claudia; Cervone, Felice; De Lorenzo, Giulia
- Abstract
Plant immunity is activated through complex and cross-talking transduction pathways that include a mitogen-activated protein kinase phosphorylation cascade. Here, we have investigated the role in immunity of the Arabidopsis (Arabidopsis thaliana) gene subfamily that encodes the mitogen-activated protein triple kinases indicated as ARABIDOPSIS NUCLEUS- AND PHRAGMOPLAST-LOCALIZED KINASE1-RELATED PROTEIN KINASE1 (ANP1), ANP2, and ANP3. For this study, we us representative danger signals (ehcitors) belonging to the classes of the damage- and pathogen-associated molecular patterns, i.e. oligogalacturonides, linear fragments derived from the plant cell wall homogalacturonan, and the peptide elf18 derived from the bacterial elongation factor thermo-unstable. Analyses of single and double as well as conditional triple mutants show that ANPs are required for elicitor-triggered defense responses and protection against the necrotrophic fungus Botrytis cinerea. Notably, ANPs are also required for both the elidtor-induced oxidative burst and the transduction of the hydrogen peroxide signal but not for the inhibition of auxin-induced gene expression, indicating that this response can be uncoupled from the activation of defense responses. Our findings point to ANPs as key transduction elements that coordinate damage- and pathogen-associated molecular pattern-triggered immunity and orchestrate reactive oxygen species accumulation and signaling.
- Subjects
ARABIDOPSIS thaliana; PROTEIN kinases; ELICITORS (Botany); PLANT defenses; PLANT physiology research; PLANT immunology
- Publication
Plant Physiology, 2014, Vol 165, Issue 3, p1188
- ISSN
0032-0889
- Publication type
Article
- DOI
10.1104/pp.114.236901