Overexpression of NDR1 leads to pathogen resistance at elevated temperatures
Journal
New Phytologist
Journal Volume
235
Journal Issue
3
Pages
1146-1162
Date Issued
2022
Author(s)
Abstract
Abiotic and biotic environments influence a myriad of plant-related processes, including growth, development, and the establishment and maintenance of interaction(s) with microbes. In the case of the latter, elevated temperature has been shown to be a key factor that underpins host resistance and pathogen virulence. In this study, we elucidate a role for Arabidopsis NON-RACE-SPECIFIC DISEASE RESISTANCE1 (NDR1) by exploiting effector-triggered immunity to define the regulation of plant host immunity in response to both pathogen infection and elevated temperature. We generated time-series RNA sequencing data of WT Col-0, an NDR1 overexpression line, and ndr1 and ics1-2 mutant plants under elevated temperature. Not surprisingly, the NDR1-overexpression line showed genotype-specific gene expression changes related to defense response and immune system function. The results described herein support a role for NDR1 in maintaining cell signaling during simultaneous exposure to elevated temperature and avirulent pathogen stressors. © 2022 The Authors. New Phytologist © 2022 New Phytologist Foundation.
Subjects
Arabidopsis; effector-triggered immunity (ETI); heat stress; NON-RACE-SPECIFIC DISEASE RESISTANCE-1 (NDR1); Pst-AvrRpt2; salicylic acid
Other Subjects
gene expression; immune system; pathogen; stress; temperature; Arabidopsis protein; transcription factor; Arabidopsis; gene expression regulation; genetics; metabolism; plant; plant disease; Pseudomonas syringae; temperature; Arabidopsis; Arabidopsis Proteins; Gene Expression Regulation, Plant; Plant Diseases; Plants; Pseudomonas syringae; Temperature; Transcription Factors
Type
journal article