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Overexpression of NDR1 leads to pathogen resistance at elevated temperatures
Author(s) -
Samaradivakara Saroopa P.,
Chen Huan,
Lu YiJu,
Li Pai,
Kim Yongsig,
Tsuda Kenichi,
Mine Akira,
Day Brad
Publication year - 2022
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/nph.18190
Subject(s) - biology , effector , pathogen , arabidopsis , virulence , plant disease resistance , abiotic component , gene , immunity , mutant , immune system , microbiology and biotechnology , genetics , ecology
Summary 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.