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Regulatory Mechanisms of Development and Abiotic Stress Response by Transcriptional Regulators in Plants: 2nd Edition

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Plant Sciences".

Deadline for manuscript submissions: 30 May 2025 | Viewed by 1118

Special Issue Editor

Special Issue Information

Dear Colleagues,

Plants rely on transcriptional regulators to carry out essential biological processes, such as growth, development, environmental stress response, and reproduction. Endogenous and/or exogenous signals stimulate a developmental process that involves the regulation of cell multiplication, differentiation, and expansion through diverse transcriptional regulation. Environmental stresses limit the growth and productivity of plants. Cellular adaptation to abiotic stresses requires coordinated changes in gene expression regulated by complex mechanisms. The changes to the transcriptome are mediated by transcriptional regulators to modulate development and responses to abiotic stresses in plants. Transcriptional regulators are the trans-acting elements that play major roles in regulating gene expression by binding to cis-acting elements. They function as either transcriptional activators or repressors in gene regulation. Regulation of the balance between activators and repressors is important for proper gene expression. Several major transcription factor families have been identified in plants, such as AP2/ERF, bZIP, zinc finger, WRKY, MYB, bHLH, and NAC families. This Special Issue will focus on the most recent advances in the regulatory mechanisms of development and abiotic stress response by transcriptional regulators in plants. The submission of original research articles and reviews reporting the molecular functions and/or signal transduction of transcriptional regulators in developmental regulation or abiotic stress response are especially encouraged. Notwithstanding this, contributions on other topics related to understanding the regulation of gene expression in plants, such as epigenetic regulation and genome-wide analysis, are also welcome.

Prof. Dr. Yong-Hwan Moon
Guest Editor

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Keywords

  • transcriptional regulator
  • transcription activation
  • transcription factor
  • transcription repression
  • plant development
  • abiotic stress response
  • epigenetic regulation
  • genome-wide analysis

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Published Papers (1 paper)

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Research

15 pages, 4172 KiB  
Article
The Transcription Factor CcMYB330 Regulates Capsaicinoid Biosynthesis in Pepper Fruits
by Hong Cheng, Mingxian Zhang, Guining Fang, Mengjuan Li, Ruihao Zhang, Qiaoli Xie, Shu Han, Junheng Lv and Minghua Deng
Int. J. Mol. Sci. 2025, 26(4), 1438; https://doi.org/10.3390/ijms26041438 - 8 Feb 2025
Cited by 1 | Viewed by 892
Abstract
Pepper is an important vegetable and economic crop, and the MYB family is one of the most numerous transcription factor families in plants, extensively participating in various biological processes such as plant growth, development, and stress resistance. In this study, CcMYB330 is identified [...] Read more.
Pepper is an important vegetable and economic crop, and the MYB family is one of the most numerous transcription factor families in plants, extensively participating in various biological processes such as plant growth, development, and stress resistance. In this study, CcMYB330 is identified as a differentially expressed gene in the pepper fruit, and CcMYB330 is expressed with higher expression levels in the placenta and pericarp at different development stages of pepper fruit. Analysis of the promoter cis-elements revealed that this gene contains not only core elements but also environmental factor response elements and plant hormone response elements. The silencing of CcMYB330 could reduce the capsaicinoid accumulation in pepper fruit, while the overexpression of CcMYB330 could increase capsaicinoid accumulation. Additionally, silencing or overexpressing CcMYB330 could regulate the expression of structural genes involved in capsaicinoid biosynthesis. In addition, through yeast one-hybrid experiments, we identified an interaction between CcMYB330 and the capsaicinoid biosynthesis structural gene CcPAL. Further evidence from EMSA experiments and dual luciferase assays confirmed that CcMYB330 can bind to the cis-element ACCAACAACCAAA in the CcPAL promoter. These results indicate that CcMYB330 may regulate the synthesis of capsaicinoids by modulating structural genes in the capsaicinoid biosynthesis pathway, providing new insights into the regulatory mechanisms of capsaicinoid synthesis. Full article
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