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Molecular Regulation of Plant Stress Responses
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Molecular Regulation of Plant Stress Responses

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Molecular Biology".

Deadline for manuscript submissions: closed (31 March 2025) | Viewed by 3309

Special Issue Editors

Dr. Flávia Thiebaut

E-Mail Website
Guest Editor
Laboratório de Biologia Molecular de Plantas, Instituto de Bioquímica Médica Leopoldo De Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
Interests: epigenetics; plant small RNA; non-coding RNA; plant genomics; gene expression regulation; genome editing; plant molecular biology; plant stress response
Dr. Clicia Grativol

E-Mail Website
Guest Editor
Laboratório de Química e Função de Proteínas e Peptídeos, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, Rio de Janeiro 21941-902, Brazil
Interests: plant genomics; epigenetics; plant small RNA
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Plants are sessile organisms which are subjected to constantly changing environments that can generate unfavorable or stressful situations for plant growth, development, and productivity. In recent years, enormous progress has been made in understanding molecular regulation in response to diverse environmental stimuli, including in response to biotic and abiotic stresses. The analysis of genomics, transcriptomics, proteomics, metabolomics, and epigenomics can assist us in gaining insights on the molecular mechanisms behind plant interactions with environmental stress. Understanding the molecular basis of how plants perceive, transduce, and respond to these stresses is crucial for developing strategies to enhance crop resilience and productivity.

We invite original research articles and reviews on topics including, but not limited to, the following:

  • Signal Transduction Pathways: Molecular pathways involved in stress signal perception and transduction.
  • Gene Regulation: Transcriptional and post-transcriptional regulation of stress-responsive genes.
  • Epigenetics: Epigenetic modifications influencing stress responses.
  • Hormonal Crosstalk: Roles of plant hormones in mediating stress responses.
  • Proteomics and Metabolomics: Stress-induced changes in the proteome and metabolome.
  • Stress Adaptation Mechanisms: Genetic and molecular bases of stress tolerance and adaptation.
  • Plant-Microbe Interactions: Molecular dynamics of plant interactions with beneficial and pathogenic microbes under stress conditions.
  • Technological Advances: Novel techniques and approaches for studying plant stress responses at the molecular level.

Dr. Flávia Thiebaut
Dr. Clicia Grativol
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

  • plant stress response
  • non-coding RNA
  • biotic stress
  • abiotic stress
  • crop resilience
  • adaptation and acclimation
  • gene regulation
  • plant epigenetics
  • environmental stress

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Published Papers (4 papers)

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Research

26 pages, 4094 KiB  
Article
Analysis of the Genes from Gibberellin, Jasmonate, and Auxin Signaling Under Drought Stress: A Genome-Wide Approach in Castor Bean (Ricinus communis L.)
by Ygor de Souza-Vieira, Esther Felix-Mendes, Gabriela Valente-Almeida, Thais Felix-Cordeiro, Régis L. Corrêa, Douglas Jardim-Messeder and Gilberto Sachetto-Martins
Plants 2025, 14(8), 1256; https://doi.org/10.3390/plants14081256 - 20 Apr 2025
Viewed by 260
Abstract
Castor bean (Ricinus communis L.) can tolerate long periods of dehydration, allowing the investigation of gene circuits involved in drought tolerance. Genes from gibberellins, jasmonates, and auxin signaling are important for crosstalk in the developmental and environmental adaptation process to drought conditions. [...] Read more.
Castor bean (Ricinus communis L.) can tolerate long periods of dehydration, allowing the investigation of gene circuits involved in drought tolerance. Genes from gibberellins, jasmonates, and auxin signaling are important for crosstalk in the developmental and environmental adaptation process to drought conditions. However, the genes related to these signals, as well as their transcription profiles under drought, remain poorly characterized in the castor bean. In the present work, genes from gibberellins, jasmonates, and auxin signaling were identified and molecularly characterized. These analyses allowed us to identify genes encoding receptors, inhibitory proteins, and transcription factors from each signaling pathway in the castor bean genome. Chromosomal distribution, gene structure, evolutionary relationships, and conserved motif analyses were performed. Expression analysis through RNA-seq and RT-qPCR revealed that gibberellins, jasmonates, and auxin signaling were modulated at multiple levels under drought, with notable changes in specific genes. The gibberellin receptor RcGID1c was downregulated in response to drought, and RcDELLA3 was strongly repressed, whereas its homologues were not, reinforcing the suggestion of a nuanced regulation of gibberellin signaling during drought. Considering jasmonate signaling, the downregulation of the transcription factor RcMYC2 aligned with the drought tolerance observed in mutants lacking this gene. Altogether, these analyses have provided insights into hormone signaling in the castor bean, unveiling transcriptional responses that enhance our understanding of high drought tolerance in this plant. This knowledge opens avenues for identifying potential candidate genes suitable for genetic manipulation in biotechnological approaches. Full article
(This article belongs to the Special Issue Molecular Regulation of Plant Stress Responses)
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17 pages, 6507 KiB  
Article
Agave macroacantha Transcriptome Reveals Candidate CNGC Genes Responsive to Cold Stress in Agave
by Yubo Li, Xiaoli Hu, Dietram Samson Mkapa, Li Xie, Pingan Guo, Shibei Tan, Weiyi Zhang, Helong Chen, Xing Huang and Kexian Yi
Plants 2025, 14(4), 513; https://doi.org/10.3390/plants14040513 - 7 Feb 2025
Viewed by 583
Abstract
Agave, with its unique appearance and ability to produce hard fibers, holds high economic value. However, low temperatures during winter can restrict its growth and even damage the leaves, causing a loss of ornamental appeal or affecting the fiber quality. Conversely, the plant [...] Read more.
Agave, with its unique appearance and ability to produce hard fibers, holds high economic value. However, low temperatures during winter can restrict its growth and even damage the leaves, causing a loss of ornamental appeal or affecting the fiber quality. Conversely, the plant cyclic nucleotide-gated channel (CNGC) family plays an important role in the growth and development of plants and the response to stress. Studying the CNGC family genes is of great importance for analyzing the mechanism by which agave responds to cold stress. This research conducted a transcriptomic analysis of the ornamental plant Agave macroacantha. Through assembly via Illumina sequencing, 119,911 transcripts were obtained, including 78,083 unigenes. In total, 6, 10, 11, and 13 CNGC genes were successfully identified from A. macroacantha, Agave. H11648, Agave. deserti, and Agave. tequilana, respectively. These CNGC genes could be divided into four groups (I, II, III, and IV), and group IV could be divided into two subgroups (IV-A and IV-B). The relative expression levels were quantified by qRT-PCR assays, which revealed that AhCNGC4.1 was significantly upregulated after cold treatment and Ca(NO3)2 treatment, suggesting its importance in cold stress and calcium signaling. Additionally, the Y2H assay has preliminarily identified interacting proteins of AhCNGC4.1, including AhCML19 and AhCBSX3. This study has established a completely new transcriptome dataset of A. macroacantha for the first time, enriching the bioinformatics of agave’s transcriptome. The identified CNGC genes are of great significance for understanding the evolution of agave species. The cloned CNGC genes, expression pattern analysis, and protein interaction results laid a foundation for future research related to the molecular functions of agave CNGC genes in cold tolerance. Full article
(This article belongs to the Special Issue Molecular Regulation of Plant Stress Responses)
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25 pages, 17721 KiB  
Article
The Ameliorative Effect of Coumarin on Copper Toxicity in Citrus sinensis: Insights from Growth, Nutrient Uptake, Oxidative Damage, and Photosynthetic Performance
by Wei-Lin Huang, Hui Yang, Xu-Feng Chen, Fei Lu, Rong-Rong Xie, Lin-Tong Yang, Xin Ye, Zeng-Rong Huang and Li-Song Chen
Plants 2024, 13(24), 3584; https://doi.org/10.3390/plants13243584 - 22 Dec 2024
Viewed by 894
Abstract
Excessive copper (Cu) has become a common physiological disorder restricting the sustainable production of citrus. Coumarin (COU) is a hydroxycinnamic acid that can protect plants from heavy metal toxicity. No data to date are available on the ameliorative effect of COU on plant [...] Read more.
Excessive copper (Cu) has become a common physiological disorder restricting the sustainable production of citrus. Coumarin (COU) is a hydroxycinnamic acid that can protect plants from heavy metal toxicity. No data to date are available on the ameliorative effect of COU on plant Cu toxicity. ‘Xuegan’ (Citrus sinensis (L.) Osbeck) seedlings were treated for 24 weeks with nutrient solution containing two Cu levels (0.5 (Cu0.5) and 400 (Cu400) μM CuCl2) × four COU levels (0 (COU0), 10 (COU10), 50 (COU50), and 100 (COU100) μM COU). There were eight treatments in total. COU supply alleviated Cu400-induced increase in Cu absorption and oxidative injury in roots and leaves, decrease in growth, nutrient uptake, and leaf pigment concentrations and CO2 assimilation (ACO2), and photo-inhibitory impairment to the whole photosynthetic electron transport chain (PETC) in leaves, as revealed by chlorophyll a fluorescence (OJIP) transient. Further analysis suggested that the COU-mediated improvement of nutrient status (decreased competition of Cu2+ with Mg2+ and Fe2+, increased uptake of nutrients, and elevated ability to maintain nutrient balance) and mitigation of oxidative damage (decreased formation of reactive oxygen species and efficient detoxification system in leaves and roots) might lower the damage of Cu400 to roots and leaves (chloroplast ultrastructure and PETC), thereby improving the leaf pigment levels, ACO2, and growth of Cu400-treated seedlings. Full article
(This article belongs to the Special Issue Molecular Regulation of Plant Stress Responses)
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14 pages, 6235 KiB  
Article
Heterologous Expression of Chrysanthemum TCP Transcription Factor CmTCP13 Enhances Salinity Tolerance in Arabidopsis
by Xinran Chong, Yanan Liu, Peiling Li, Yue Wang, Ting Zhou, Hong Chen and Haibin Wang
Plants 2024, 13(15), 2118; https://doi.org/10.3390/plants13152118 - 31 Jul 2024
Cited by 1 | Viewed by 1111
Abstract
Plant-specific TEOSINTE BRANCHED1/CYCLOIDEA/PROLIFERATING CELL FACTOR (TCP) proteins play critical roles in plant development and stress responses; however, their functions in chrysanthemum (Chrysanthemum morifolium) have not been well-studied. In this study, we isolated and characterized the chrysanthemum TCP transcription factor family gene [...] Read more.
Plant-specific TEOSINTE BRANCHED1/CYCLOIDEA/PROLIFERATING CELL FACTOR (TCP) proteins play critical roles in plant development and stress responses; however, their functions in chrysanthemum (Chrysanthemum morifolium) have not been well-studied. In this study, we isolated and characterized the chrysanthemum TCP transcription factor family gene CmTCP13, a homolog of AtTCP13. This gene encoded a protein harboring a conserved basic helix–loop–helix motif, and its expression was induced by salinity stress in chrysanthemum plants. Subcellular localization experiments showed that CmTCP13 localized in the nucleus. Sequence analysis revealed the presence of multiple stress- and hormone-responsive cis-elements in the promoter region of CmTCP13. The heterologous expression of CmTCP13 in Arabidopsis plants enhanced their tolerance to salinity stress. Under salinity stress, CmTCP13 transgenic plants exhibited enhanced germination, root length, seedling growth, and chlorophyll content and reduced relative electrical conductivity compared with those exhibited by wild-type (WT) plants. Moreover, the expression levels of stress-related genes, including AtSOS3, AtP5CS2, AtRD22, AtRD29A, and AtDREB2A, were upregulated in CmTCP13 transgenic plants than in WT plants under salt stress. Taken together, our results demonstrate that CmTCP13 is a critical regulator of salt stress tolerance in plants. Full article
(This article belongs to the Special Issue Molecular Regulation of Plant Stress Responses)
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