Open AccessMYB30 links ROS signaling, root cell elongation, and plant immune responses
Author(s) -
Kaho Mabuchi,
Hiromasa Maki,
Tomotaka Itaya,
Takamasa Suzuki,
Mika Nomoto,
Satomi Sakaoka,
Atsushi Morikami,
Tetsuya Higashiyama,
Yasuomi Tada,
Wolfgang Busch,
Hironaka Tsukagoshi
Publication year - 2018
Publication title -
proceedings of the national academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.011
H-Index - 771
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.1804233115
Subject(s) - arabidopsis , reactive oxygen species , microbiology and biotechnology , transcriptome , transcription factor , biology , biotic stress , immune system , plant immunity , cell signaling , root hair , plant growth , gene , signal transduction , botany , gene expression , biochemistry , immunology , abiotic stress , mutant
Significance Plant roots tune their growth to the environment. An important class of molecules involved in environmental responses as well as in root growth regulation is composed of reactive oxygen species (ROS). By making use of a comprehensive transcriptome atlas capturing ROS responses in different developmental zones of the root, we uncovered a regulatory network that is involved in root-growth regulation and responses to biotic stress. This network is composed of the ROS-responsive transcription factor MYB30, which regulates multiple genes involved in the transport of very-long-chain fatty acids (VLCFAs). Overall, our findings show thatArabidopsis uses the sameMYB30 -dependent regulatory network for root-growth and immunity responses, processes that were considered largely independent of each other.
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