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Updated: Jan 11, 2026

Author Spotlight: Polysome Profiling Protocol for Studying Translational Regulation in Arabidopsis Under Heat Stress
Published on: October 11, 2024
Comprehensive transcriptomic analysis revealing that 2-azahypoxanthine treatment induces the stress response in
Yuki Tanaka1, Tomohiro Suzuki2,3, Keisuke Mitsukuni2
1Faculty of Food and Agricultural Sciences, Fukushima University, 1 Kanayagawa, Fukushima, Fukushima, Japan.
Abstract:
Some fungi form fairy rings by secreting fairy chemicals that regulate plant growth. Among them, 2-azahypoxanthine (AHX) has been proposed as a new phytohormone, but its mechanisms remain unclear. We treated Arabidopsis thaliana with 400 μm AHX and observed growth inhibition, contrasting with earlier reports in bentgrass. To elucidate this effect, we performed transcriptome sequencing and identified differentially expressed genes. Gene ontology enrichment revealed activation of hormone- and stress-related terms and suppression of photosynthesis-related terms. Liquid chromatography-mass spectrometry further showed an increase in 1-aminocyclopropanecarboxylic acid, an ethylene precursor, after AHX treatment. These results suggest that AHX alters the stress response in A. thaliana by regulating genes associated with multiple plant hormones, including abscisic acid, ethylene, jasmonic acid, salicylic acid, and cytokinins.
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Transcription
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
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