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Regulatory Mechanism and Network of Abiotic Stress-Response in Plants 2.0
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Regulatory Mechanism and Network of Abiotic Stress-Response in Plants 2.0

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: 31 August 2024 | Viewed by 4723

Special Issue Editor

Prof. Dr. Yong-Hwan Moon

E-Mail Website
Guest Editor
Department of Molecular Biology, Pusan National University, Busan 46241, Republic of Korea
Interests: plant abiotic stress response; plant development regulation; Arabidopsis; non-tandem CCCH zinc finger genes; AP2/ERF transcription factors; osmotic stress; hypoxia stress
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Various abiotic stresses, such as high salinity, drought, extreme temperature and excessive light, limit growth, development and productivity in plants. Plants show dynamic responses to adapt to those abiotic stresses at the biochemical, physiological and molecular levels, thus enabling them to survive under variable abiotic stress conditions.

Adaptation to abiotic stresses requires coordinated modulations in plant metabolism, cell growth, division and differentiation, all which are dependent on gene regulation systems that are controlled by complex mechanisms. Many stress-responsive genes have been shown to participate in the regulation of abiotic stress responses in plants. However, precise regulatory mechanisms and networks of abiotic stress responses still remain to be understood.

This Special Issue will focus on the most recent advances in the regulatory mechanism and network of abiotic stress responses in plants. The submission of work reporting the molecular mechanisms in abiotic stress signal transduction is especially encouraged. Notwithstanding, contributions on other related topics aimed at understanding the regulatory mechanisms of abiotic stress responses in plants are also welcomed, including reviews and original research articles.

Kind regards,

Prof. Dr. Yong-Hwan Moon
Guest Editor

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. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. 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

  • abiotic stress response
  • osmotic stress
  • temperature stress
  • transcriptional regulation
  • post-transcriptional regulation
  • regulatory mechanism
  • gene regulatory network

Related Special Issue

Published Papers (5 papers)

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Research

19 pages, 18203 KiB  
Article
The RopGEF Gene Family and Their Potential Roles in Responses to Abiotic Stress in Brassica rapa
by Meiqi Zhang, Xiaoyu Wu, Luhan Chen, Lin Yang, Xiaoshuang Cui and Yunyun Cao
Int. J. Mol. Sci. 2024, 25(6), 3541; https://doi.org/10.3390/ijms25063541 - 21 Mar 2024
Viewed by 529
Abstract
Guanine nucleotide-exchange factors (GEFs) genes play key roles in plant root and pollen tube growth, phytohormone responses, and abiotic stress responses. RopGEF genes in Brassica rapa have not yet been explored. Here, GEF genes were found to be distributed across eight [...] Read more.
Guanine nucleotide-exchange factors (GEFs) genes play key roles in plant root and pollen tube growth, phytohormone responses, and abiotic stress responses. RopGEF genes in Brassica rapa have not yet been explored. Here, GEF genes were found to be distributed across eight chromosomes in B. rapa and were classified into three subfamilies. Promoter sequence analysis of BrRopGEFs revealed the presence of cis-elements characteristic of BrRopGEF promoters, and these cis-elements play a role in regulating abiotic stress tolerance and stress-related hormone responses. Organ-specific expression profiling demonstrated that BrRopGEFs were ubiquitously expressed in all organs, especially the roots, suggesting that they play a role in diverse biological processes. Gene expression analysis revealed that the expression of BrRopGEF13 was significantly up-regulated under osmotic stress and salt stress. RT-qPCR analysis revealed that the expression of BrRopGEF13 was significantly down-regulated under various types of abiotic stress. Protein–protein interaction (PPI) network analysis revealed interactions between RopGEF11, the homolog of BrRopGEF9, and the VPS34 protein in Arabidopsis thaliana, as well as interactions between AtRopGEF1, the homolog of BrRopGEF13 in Arabidopsis, and the ABI1, HAB1, PP2CA, and CPK4 proteins. VPS34, ABI1, HAB1, PP2CA, and CPK4 have previously been shown to confer resistance to unfavorable environments. Overall, our findings suggest that BrRopGEF9 and BrRopGEF13 play significant roles in regulating abiotic stress tolerance. These findings will aid future studies aimed at clarifying the functional characteristics of BrRopGEFs. Full article
(This article belongs to the Special Issue Regulatory Mechanism and Network of Abiotic Stress-Response in Plants 2.0)
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21 pages, 5821 KiB  
Article
Identification of bZIP Transcription Factors That Regulate the Development of Leaf Epidermal Cells in Arabidopsis thaliana by Single-Cell RNA Sequencing
by Rui Wu, Zhixin Liu, Susu Sun, Aizhi Qin, Hao Liu, Yaping Zhou, Weiqiang Li, Yumeng Liu, Mengke Hu, Jincheng Yang, Jean-David Rochaix, Guoyong An, Luis Herrera-Estrella, Lam-Son Phan Tran and Xuwu Sun
Int. J. Mol. Sci. 2024, 25(5), 2553; https://doi.org/10.3390/ijms25052553 - 22 Feb 2024
Viewed by 1043
Abstract
Epidermal cells are the main avenue for signal and material exchange between plants and the environment. Leaf epidermal cells primarily include pavement cells, guard cells, and trichome cells. The development and distribution of different epidermal cells are tightly regulated by a complex transcriptional [...] Read more.
Epidermal cells are the main avenue for signal and material exchange between plants and the environment. Leaf epidermal cells primarily include pavement cells, guard cells, and trichome cells. The development and distribution of different epidermal cells are tightly regulated by a complex transcriptional regulatory network mediated by phytohormones, including jasmonic acid, and transcription factors. How the fate of leaf epidermal cells is determined, however, is still largely unknown due to the diversity of cell types and the complexity of their regulation. Here, we characterized the transcriptional profiles of epidermal cells in 3-day-old true leaves of Arabidopsis thaliana using single-cell RNA sequencing. We identified two genes encoding BASIC LEUCINE-ZIPPER (bZIP) transcription factors, namely bZIP25 and bZIP53, which are highly expressed in pavement cells and early-stage meristemoid cells. Densities of pavement cells and trichome cells were found to increase and decrease, respectively, in bzip25 and bzip53 mutants, compared with wild-type plants. This trend was more pronounced in the presence of jasmonic acid, suggesting that these transcription factors regulate the development of trichome cells and pavement cells in response to jasmonic acid. Full article
(This article belongs to the Special Issue Regulatory Mechanism and Network of Abiotic Stress-Response in Plants 2.0)
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22 pages, 2970 KiB  
Article
Response to Cadmium in Silene vulgaris Ecotypes Is Distinctly Affected by Priming-Induced Changes in Oxidation Status of Macromolecules
by Alina Wiszniewska, Mateusz Labudda and Ewa Muszyńska
Int. J. Mol. Sci. 2023, 24(22), 16075; https://doi.org/10.3390/ijms242216075 - 08 Nov 2023
Viewed by 680
Abstract
This study investigated the impact of several priming agents on metal-tolerant and sensitive Silene vulgaris ecotypes exposed to environmentally relevant cadmium dose. We analyzed how priming-induced changes in the level of lipid, protein, and DNA oxidation contribute to calamine (Cal) and non-calamine (N-Cal) [...] Read more.
This study investigated the impact of several priming agents on metal-tolerant and sensitive Silene vulgaris ecotypes exposed to environmentally relevant cadmium dose. We analyzed how priming-induced changes in the level of lipid, protein, and DNA oxidation contribute to calamine (Cal) and non-calamine (N-Cal) ecotype response to Cd toxicity, and whether the oxidative modifications interrelate with Cd tolerance. In non-primed ecotypes, the levels of DNA and protein oxidation were similar whereas Cal Cd tolerance was manifested in reduced lipid peroxidation. In both ecotypes protective action of salicylic acid (SA) and nitric oxide (NO) priming was observed. SA stimulated growth and reduced lipid and DNA oxidation at most, while NO protected DNA from fragmentation. Priming with hydrogen peroxide reduced biomass and induced DNA oxidation. In N-Cal, priming diminished Cd accumulation and oxidative activity, whereas in Cal, it merely affected Cd uptake and induced protein carbonylation. The study showed that priming did not stimulate extra stress resistance in the tolerant ecotype but induced metabolic remodeling. In turn, the lack of adaptive tolerance made the sensitive ecotype more responsive to the benefits of the primed state. These findings could facilitate priming exploitation with a view of enhancing metallophyte and non-metallophyte suitability for phytoremediation and land revegetation. Full article
(This article belongs to the Special Issue Regulatory Mechanism and Network of Abiotic Stress-Response in Plants 2.0)
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22 pages, 1302 KiB  
Article
Involvement of Dynamic Adjustment of ABA, Proline and Sugar Levels in Rhizomes in Effective Acclimation of Solidago gigantea to Contrasting Weather and Soil Conditions in the Country of Invasion
by Renata Bączek-Kwinta, Franciszek Janowiak, Magdalena Simlat and Jacek Antonkiewicz
Int. J. Mol. Sci. 2023, 24(20), 15368; https://doi.org/10.3390/ijms242015368 - 19 Oct 2023
Viewed by 798
Abstract
Giant goldenrod (Solidago gigantea Aiton) is one of the most invasive plant species occurring in Europe. Since little is known about the molecular mechanisms contributing to its invasiveness, we examined the natural dynamics of the content of rhizome compounds, which can be [...] Read more.
Giant goldenrod (Solidago gigantea Aiton) is one of the most invasive plant species occurring in Europe. Since little is known about the molecular mechanisms contributing to its invasiveness, we examined the natural dynamics of the content of rhizome compounds, which can be crucial for plant resistance and adaptation to environmental stress. We focused on rhizomes because they are the main vector of giant goldenrod dispersion in invaded lands. Water-soluble sugars, proline, and abscisic acid (ABA) were quantified in rhizomes, as well as ABA in the rhizosphere from three different but geographically close natural locations in Poland (50°04′11.3″ N, 19°50′40.2″ E) under extreme light, thermal, and soil conditions, in early spring, late summer, and late autumn. The genetic diversity of plants between locations was checked using the random amplified polymorphic DNA (RAPD) markers. Sugar and proline content was assayed spectrophotometrically, and abscisic acid (ABA) with the ELISA immunomethod. It can be assumed that the accumulation of sugars in giant goldenrod rhizomes facilitated the process of plant adaptation to adverse environmental conditions (high temperature and/or water scarcity) caused by extreme weather in summer and autumn. The same was true for high levels of proline and ABA in summer. On the other hand, the lowering of proline and ABA in autumn did not confirm the previous assumptions about their synthesis in rhizomes during the acquisition of frost resistance by giant goldenrod. However, in the location with intensive sunlight and most extreme soil conditions, a constant amount of ABA in rhizomes was noticed as well as its exudation into the rhizosphere. This research indicates that soluble sugars, proline, and ABA alterations in rhizomes can participate in the mechanism of acclimation of S. gigantea to specific soil and meteorological conditions in the country of invasion irrespective of plant genetic variation. Full article
(This article belongs to the Special Issue Regulatory Mechanism and Network of Abiotic Stress-Response in Plants 2.0)
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15 pages, 4208 KiB  
Article
Genome-Wide Identification and Expression Analysis of BrGeBP Genes Reveal Their Potential Roles in Cold and Drought Stress Tolerance in Brassica rapa
by Ruolan Wang, Xiaoyu Wu, Ziwen Wang, Xiaoyu Zhang, Luhan Chen, Qiaohong Duan and Jiabao Huang
Int. J. Mol. Sci. 2023, 24(17), 13597; https://doi.org/10.3390/ijms241713597 - 02 Sep 2023
Cited by 1 | Viewed by 892
Abstract
The GLABROUS1 Enhancer Binding Protein (GeBP) gene family is pivotal in regulating plant growth, development, and stress responses. However, the role of GeBP in Brassica rapa remains unclear. This study identifies 20 BrGeBP genes distributed across 6 chromosomes, categorized into 4 subfamilies. Analysis [...] Read more.
The GLABROUS1 Enhancer Binding Protein (GeBP) gene family is pivotal in regulating plant growth, development, and stress responses. However, the role of GeBP in Brassica rapa remains unclear. This study identifies 20 BrGeBP genes distributed across 6 chromosomes, categorized into 4 subfamilies. Analysis of their promoter sequences reveals multiple stress-related elements, including those responding to drought, low temperature, methyl jasmonate (MeJA), and gibberellin (GA). Gene expression profiling demonstrates wide expression of BrGeBPs in callus, stem, silique, and flower tissues. Notably, BrGeBP5 expression significantly decreases under low-temperature treatment, while BrGeBP3 and BrGeBP14 show increased expression during drought stress, followed by a decrease. Protein interaction predictions suggest that BrGeBP14 homolog, At5g28040, can interact with DES1, a known stress-regulating protein. Additionally, microRNA172 targeting BrGeBP5 is upregulated under cold tolerance. These findings underscore the vital role of BrGeBPs in abiotic stress tolerance. Specifically, BrGeBP3, BrGeBP5, and BrGeBP14 show great potential for regulating abiotic stress. This study contributes to understanding the function of BrGeBPs and provides valuable insights for studying abiotic stress in B. rapa. Full article
(This article belongs to the Special Issue Regulatory Mechanism and Network of Abiotic Stress-Response in Plants 2.0)
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