New insights into the molecular basis of induced resistance triggered by potassium phosphite in potato

Publication date: Available online 12 November 2019Source: Physiological and Molecular Plant PathologyAuthor(s): Mariana Laura Feldman, María Carla Guzzo, Milagros Florencia Machinandiarena, María Florencia Rey-Burusco, María Verónica Beligni, Julio Di Rienzo, Martín Alfredo Castellote, Gustavo Raúl Daleo, Adriana Balbina AndreuAbstractThis work aimed to provide data about the molecules involved in induced resistance mediated by potassium phosphite (KPhi) in potato. To achieve these, we performed microarray analysis to determine the changes in gene expression after KPhi treatment, and their abundance after Phytophthora infestans (P.i.) infection. Our results showed the differential expression of 172 genes after KPhi treatment, and 22 KPhi primed genes after P.i. challenge, mainly involved in signal transduction and defense reactions, among others. Additionally, to identify common cis-elements involved in their regulation, we analyzed in-silico KPhi responsive genes promoters. Interestingly relevant phytohormone and stress-responsive cis-elements were present.
Source: Physiological and Molecular Plant Pathology - Category: Molecular Biology Source Type: research