Non-specific Lipid Transfer Proteins in Legumes and Their Participation During Root-Nodule Symbiosis

Non-specific lipid transfer proteins (LTPs) constitute a large protein family in plants characterized by having tunnel-like hydrophobic cavity, which allows them to different molecules. LTPs have been studied various model including those of agronomic interest. Recent studies demonstrated that play key functions both biotic and abiotic stress. In plants-pathogen interaction, they act as either positive or negative regulators defense responses. However, little is known about the roles symbiotic interactions, especially root nodule symbiosis. Here, we performed broad genome analysis LTP members legumes other important plants, focusing on their possible legume-rhizobium silico showed contain families, with at least 70 clustered into four clades. Although structures genes are conserved among species, differences were observed between clades from species. widely expressed plant tissues. general, LTP1 LTP2 classes highly shoot reproductive tissues all analyzed Furthermore, also roots inoculated rhizobia nodules legumes. RT-qPCR expression profile seven PvLTP common bean ( Phaseolus vulgaris ) revealed these differentially during early late stages nodulation genetically regulated PvRbohA . These findings provide insight putative symbiosis interactions RBOH-dependent ROS production.