Dynamics of signaling and signal perception in microbe – host interactions

Abstract: To better understand beneficial interactions of rhizobacteria with plants, it is necessary to include widely distributed small molecules, which modulate the primary microbial-associated molecular pattern (MAMP)-triggered innate immune response of plants. Besides signaling molecules affecting phytohormone regulons or other secondary metabolites with e.g. antibiotic activities, N-acyl homoserine lactones, which are widely found in Gram-negative bacteria as quorum sensing compounds, have profound effects on plant development and systemic resistance.