The basic leucine zipper transcription factor OsbZIP83 and the glutaredoxins OsGRX6 and OsGRX9 facilitate rice iron utilization under the control of OsHRZ ubiquitin ligases

• Published in: The Plant journal : for cell and molecular biology Vol. 110; no. 6; pp. 1731 - 1750
• Main Authors: Kobayashi, Takanori, Shinkawa, Haruka, Nagano, Atsushi J., Nishizawa, Naoko K.
• Format: Journal Article
• Language: English
• Published: England Blackwell Publishing Ltd 01.06.2022
• Subjects: basic leucine zipper transcription factor; Biosynthesis; Degradation; Downstream effects; Gene expression; Gene regulation; Genes; glutaredoxin; Iron; Iron deficiency; iron deficiency response; iron sensing; Leucine; leucine zipper; Leucine zipper proteins; Nutrient deficiency; Oryza sativa; phytoalexins; Plant cells; Proteasome 26S; protein content; Proteins; protein‐level regulation; proteome; Proteomes; Rice; rice (Oryza sativa); Salicylic acid; Transcription factors; transcriptional regulation; Translocation; Ubiquitin; ubiquitin ligase; ubiquitin-protein ligase; Utilization; Yeast; yeasts; iron sensing; ubiquitin ligase; rice (Oryza sativa); protein-level regulation; transcriptional regulation; basic leucine zipper transcription factor; glutaredoxin; iron deficiency response; gene expression

SUMMARY Under low iron availability, plants induce the expression of various genes for iron uptake and translocation. The rice (Oryza sativa) ubiquitin ligases OsHRZ1 and OsHRZ2 cause overall repression of these iron‐related genes at the transcript level, but their protein‐level regulation is unclea...