A regulatory network promotes apoplastic alkalinization to prime plant immunity in tissues distal to site of infection - PubMed
6 hours ago
- #apoplastic alkalinization
- #phytocytokines
- #plant immunity
- Pseudomonas syringae bacteria induce apoplastic alkalinization in both infected and neighboring distal tissues in Arabidopsis.
- Calcium-dependent protein kinases phosphorylate Ser899 of H+-ATPases to inhibit their activity, leading to alkalinization.
- Distal alkalinization activates phytocytokines (e.g., plant elicitor peptides) and their receptors, promoting disease resistance.
- Apoplastic alkalinization and phytocytokine expression mutually reinforce each other, enhancing local-distal communication and immune priming.