Origin, Diversity, Expansion History and Functional Evolution of the Plant Receptor-Like Kinase/Pelle Family.- Receptor Kinases in Plant Meristem Development.- The Social Network: Receptor Kinases and Cell Fate Determination in Plants.- Experimental Evidence of a Role for RLKs in Innate Immunity.- Cell-Death Control by Receptor Kinases in Arabidopsis thaliana.- Receptor Kinases Mediating Early Symbiotic Signaling.- The Cell Wall Associated Kinases, WAKs, Regulate Cell Expansion and the Stress Response.- The Regulation of Pollen-Pistil Interactions by Receptor-Like Kinases.- Receptor Kinase Interactions: Complexity of Signaling.- Ligands of RLKs and RLPs Involved in Defense and Symbiosis.- Receptor Ligands in Development.- Phosphorylation and RLK signaling.- Receptor Trafficking in Plants.- The Protein Quality Control of Plant Receptor-Like Kinases in the Endoplasmic Reticulum.