Subproject D06: Specificity of systemin processing, perception, and signaling
Principle Investigator:
Prof. Dr. Andreas Schaller
University of Hohenheim
Institut für Physiologie und Biotechnologie der Pflanzen (IPPB)
Emil-Wolff-Str. 23
70593 Stuttgart
+49 711 459 22197
andreas.schaller@uni-hohenheim.de
Summary:
Phosphoproteomics was used to compare the signaling networks that are activated by the wound signaling peptide systemin and MAMPs. We aim to confirm the systemin-specific signaling network using phosphoproteomics in a systemin receptor (SYR1) mutant, and to assess the specific contri-bution of PLL5 and GLR3.3. The Systemin-like peptide SysC exhibited unique signaling activity. We aim to understand the basis of SysC-specific signaling that depends in part on SYR1. We propose that SYR1 may engage in different receptor complexes in a ligand-dependent manner. Our objective is the identification of the proteins that interact with SYR1 after systemin and SysC stimulation.