Transcriptome Changes Reveal the Molecular Mechanisms of Humic Acid-Induced Salt Stress Tolerance in Arabidopsis

Humic acid (HA) is a principal component of humic substances, which make up the complex organic matter that broadly exists in soil environments. HA promotes plant development as well as stress tolerance, however the precise molecular mechanism for these is little known. Here we conducted transcripto...

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Main Authors: Joon-Yung Cha, Sang-Ho Kang, Myung Geun Ji, Gyeong-Im Shin, Song Yi Jeong, Gyeongik Ahn, Min Gab Kim, Jong-Rok Jeon, Woe-Yeon Kim
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/26/4/782
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author Joon-Yung Cha
Sang-Ho Kang
Myung Geun Ji
Gyeong-Im Shin
Song Yi Jeong
Gyeongik Ahn
Min Gab Kim
Jong-Rok Jeon
Woe-Yeon Kim
author_facet Joon-Yung Cha
Sang-Ho Kang
Myung Geun Ji
Gyeong-Im Shin
Song Yi Jeong
Gyeongik Ahn
Min Gab Kim
Jong-Rok Jeon
Woe-Yeon Kim
author_sort Joon-Yung Cha
collection DOAJ
description Humic acid (HA) is a principal component of humic substances, which make up the complex organic matter that broadly exists in soil environments. HA promotes plant development as well as stress tolerance, however the precise molecular mechanism for these is little known. Here we conducted transcriptome analysis to elucidate the molecular mechanisms by which HA enhances salt stress tolerance. Gene Ontology Enrichment Analysis pointed to the involvement of diverse abiotic stress-related genes encoding HEAT-SHOCK PROTEINs and redox proteins, which were up-regulated by HA regardless of salt stress. Genes related to biotic stress and secondary metabolic process were mainly down-regulated by HA. In addition, HA up-regulated genes encoding transcription factors (TFs) involved in plant development as well as abiotic stress tolerance, and down-regulated TF genes involved in secondary metabolic processes. Our transcriptome information provided here provides molecular evidences and improves our understanding of how HA confers tolerance to salinity stress in plants.
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spelling doaj.art-1c2f487e7d6542d18363eea5a9bf42362023-12-03T12:15:00ZengMDPI AGMolecules1420-30492021-02-0126478210.3390/molecules26040782Transcriptome Changes Reveal the Molecular Mechanisms of Humic Acid-Induced Salt Stress Tolerance in ArabidopsisJoon-Yung Cha0Sang-Ho Kang1Myung Geun Ji2Gyeong-Im Shin3Song Yi Jeong4Gyeongik Ahn5Min Gab Kim6Jong-Rok Jeon7Woe-Yeon Kim8Division of Applied Life Science (BK21four), Plant Molecular Biology and Biotechnology Research Center, Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, KoreaGenomics Division, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, KoreaDivision of Applied Life Science (BK21four), Plant Molecular Biology and Biotechnology Research Center, Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, KoreaDivision of Applied Life Science (BK21four), Plant Molecular Biology and Biotechnology Research Center, Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, KoreaDivision of Applied Life Science (BK21four), Plant Molecular Biology and Biotechnology Research Center, Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, KoreaDepartment of Agricultural Chemistry and Food Science & Technology, Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, KoreaCollege of Pharmacy and Research Institute of Pharmaceutical Science, Gyeongsang National University, Jinju 52828, KoreaDepartment of Agricultural Chemistry and Food Science & Technology, Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, KoreaDivision of Applied Life Science (BK21four), Plant Molecular Biology and Biotechnology Research Center, Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, KoreaHumic acid (HA) is a principal component of humic substances, which make up the complex organic matter that broadly exists in soil environments. HA promotes plant development as well as stress tolerance, however the precise molecular mechanism for these is little known. Here we conducted transcriptome analysis to elucidate the molecular mechanisms by which HA enhances salt stress tolerance. Gene Ontology Enrichment Analysis pointed to the involvement of diverse abiotic stress-related genes encoding HEAT-SHOCK PROTEINs and redox proteins, which were up-regulated by HA regardless of salt stress. Genes related to biotic stress and secondary metabolic process were mainly down-regulated by HA. In addition, HA up-regulated genes encoding transcription factors (TFs) involved in plant development as well as abiotic stress tolerance, and down-regulated TF genes involved in secondary metabolic processes. Our transcriptome information provided here provides molecular evidences and improves our understanding of how HA confers tolerance to salinity stress in plants.https://www.mdpi.com/1420-3049/26/4/782arabidopsishumic acidsalt stresstranscriptome analysis
spellingShingle Joon-Yung Cha
Sang-Ho Kang
Myung Geun Ji
Gyeong-Im Shin
Song Yi Jeong
Gyeongik Ahn
Min Gab Kim
Jong-Rok Jeon
Woe-Yeon Kim
Transcriptome Changes Reveal the Molecular Mechanisms of Humic Acid-Induced Salt Stress Tolerance in Arabidopsis
Molecules
arabidopsis
humic acid
salt stress
transcriptome analysis
title Transcriptome Changes Reveal the Molecular Mechanisms of Humic Acid-Induced Salt Stress Tolerance in Arabidopsis
title_full Transcriptome Changes Reveal the Molecular Mechanisms of Humic Acid-Induced Salt Stress Tolerance in Arabidopsis
title_fullStr Transcriptome Changes Reveal the Molecular Mechanisms of Humic Acid-Induced Salt Stress Tolerance in Arabidopsis
title_full_unstemmed Transcriptome Changes Reveal the Molecular Mechanisms of Humic Acid-Induced Salt Stress Tolerance in Arabidopsis
title_short Transcriptome Changes Reveal the Molecular Mechanisms of Humic Acid-Induced Salt Stress Tolerance in Arabidopsis
title_sort transcriptome changes reveal the molecular mechanisms of humic acid induced salt stress tolerance in arabidopsis
topic arabidopsis
humic acid
salt stress
transcriptome analysis
url https://www.mdpi.com/1420-3049/26/4/782
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