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Plants
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Drought Responses and Adaptation Mechanisms in Plants, 2nd Edition
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Drought Responses and Adaptation Mechanisms in Plants, 2nd Edition

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Response to Abiotic Stress and Climate Change".

Deadline for manuscript submissions: 20 October 2025 | Viewed by 113

Special Issue Editors

Prof. Dr. William Bauerle

E-Mail Website
Guest Editor
Horticulture and Landscape Architecture, Colorado State University, Fort Collins, CO 80523, USA
Interests: plant ecophysiology; stress physiology
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Tim Setter

E-Mail Website
Guest Editor
Section of Soil and Crop Sciences, School of Integrative Plant Science, Cornell University, Ithaca, NY, USA
Interests: field of crop sciences; physiology; drought and abiotic stress; cassava and maize; environmental stresses; transcriptome responses
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Drought is a significant environmental stressor that affects plant growth and crop productivity, posing significant challenges to global agriculture, impacting crop yield and food security. Therefore, understanding plant responses to drought and identifying adaptive strategies is crucial.

This Special Issue focuses on papers discussing plant responses to drought stress at different levels, including the physiological, biochemical and molecular levels, as well as related molecular mechanisms. We invite researchers to submit their latest findings on the identification of drought-resistant traits, such as root architecture, stomatal regulation and water uptake mechanisms, and the genetic background of these traits. We welcome review and research articles that provide insights into new discoveries, theories and experimental results that contribute to a better understanding of drought responses and adaptation mechanisms in plants.

We look forward to receiving your contributions and working together to address the pressing challenges of drought resilience in plants and the future of plant ecology and agriculture.

Prof. Dr. William Bauerle
Prof. Dr. Tim Setter
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Plants is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • plants
  • drought stress
  • drought resilience
  • ecophysiology
  • ecology

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Published Papers (1 paper)

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Research

17 pages, 6326 KiB  
Article
Functional Characterization of Grapevine VviMYC4 in Regulating Drought Tolerance by Mediating Flavonol Biosynthesis
by Yiting Tan, Wenjuan Wang, Wenbo Tian, Beibei Wang, Qifeng Zhao, Jinjun Liang, Wei Zhao and Pengfei Wen
Plants 2025, 14(10), 1409; https://doi.org/10.3390/plants14101409 - 8 May 2025
Abstract
Drought ranks among the key abiotic stresses that limit the growth and yield of grapevines (Vitis vinifera L.). Flavonols, a class of antioxidants commonly found in grapevines, play a crucial role in combating drought stress. In this study, we characterized the function [...] Read more.
Drought ranks among the key abiotic stresses that limit the growth and yield of grapevines (Vitis vinifera L.). Flavonols, a class of antioxidants commonly found in grapevines, play a crucial role in combating drought stress. In this study, we characterized the function and regulatory mechanism of the grapevine VviMYC4 in mediating flavonol biosynthesis in response to drought stress. VviMYC4 encodes a protein of 468 amino acids with conserved bHLH-MYC_N and bHLH domains. Phylogenetic analysis confirmed its homology with the grapevine VviMYC2 and similarity in function. The expression of VviMYC4 in ‘Cabernet Sauvignon’ grapevine seedling leaves increased initially and then decreased during prolonged drought stress. The homologous and heterologous transformation of VviMYC4 in grape suspension cells, Arabidopsis plants, tobacco leaves, and grapevine leaves demonstrated its ability to positively regulate flavonol biosynthesis and accumulation by promoting the expression of flavonol-related genes, thereby enhancing the drought tolerance of transgenic plants. Furthermore, VviMYC4 could bind to specific E-box sites on the promoters of VviF3H and VviFLS to improve their activities. This study highlights VviMYC4 as a pivotal positive regulator of drought tolerance in grapevines and proposes that VviMYC4 enhances the antioxidant and reactive oxygen species (ROS) scavenging abilities of grapevines in challenging environments and improves their stress resilience by mediating flavonol biosynthesis. Our findings offer crucial candidate genes and valuable insights for the molecular breeding of grapevine drought resistance. Full article
(This article belongs to the Special Issue Drought Responses and Adaptation Mechanisms in Plants, 2nd Edition)
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