FLS2‐RBOHD module regulates changes in the metabolome of Arabidopsis in response to abiotic stress

Autor: Xiaole Yu, Zhixin Liu, Aizhi Qin, Yaping Zhou, Zihao Zhao, Jincheng Yang, Mengke Hu, Hao Liu, Yumeng Liu, Susu Sun, Yixin Zhang, Masood Jan, George Bawa, Xuwu Sun
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Plant-Environment Interactions, Vol 4, Iss 1, Pp 36-54 (2023)
Druh dokumentu: article
ISSN: 2575-6265
DOI: 10.1002/pei3.10101
Popis: Abstract Through crosstalk, FLAGELLIN SENSITIVE 2 (FLS2) and RESPIRATORY BURST OXIDASE HOMOLOG D (RBOHD) are involved in regulating the homeostasis of cellular reactive oxygen species (ROS) and are linked to the metabolic response of plants toward both biotic and abiotic stress. In the present study, we examined the metabolome of Arabidopsis seedlings under drought and salt conditions to better understand the potential role of FLS2 and RBOHD‐dependent signaling in the regulation of abiotic stress response. We identified common metabolites and genes that are regulated by FLS2 and RBOHD, and are involved in the response to drought and salt stress. Under drought conditions, D‐aspartic acid and the expression of associated genes, such as ASPARAGINE SYNTHASE 2 (ASN2), increased in both fls2 and robed/f double mutants. The accumulation of amino acids, carbohydrates, and hormones, such as L‐proline, D‐ribose, and indoleacetaldehyde increased in both fls2 and rbohd/f double mutants under salt conditions, as did the expression of related genes, such as PROLINE IMINOPEPTIDASE, PHOSPHORIBOSYL PYROPHOSPHATE SYNTHASE 5, and NITRILASE 3. Collectively, these results indicate that the FLS2‐RBOHD module regulates plant response to drought and salt stress through ROS signaling by adjusting the accumulation of metabolites and expression of genes related to metabolite synthesis.
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