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Plants
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Molecular Mechanisms Associated with Plant Plasticity upon Environmental Stresses
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Molecular Mechanisms Associated with Plant Plasticity upon Environmental Stresses

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Physiology and Metabolism".

Deadline for manuscript submissions: closed (20 February 2023) | Viewed by 6274

Special Issue Editors

Dr. Hélia Cardoso

E-Mail Website
Guest Editor
MED—Mediterranean Institute for Agriculture, Environment and Development & CHANGE—Global Change and Sustainability Institute, Escola de Ciências e Tecnologia, Departamento de Biologia, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
Interests: plant morphogenesis (adventitious rooting and somatic embryogenesis); in vitro plant propagation; abiotic stress response (transcriptomic/proteomic approach); plant breeding (marker-assisted selection)
Special Issues, Collections and Topics in MDPI journals
Dr. Catarina Campos

E-Mail Website
Guest Editor
MED—Mediterranean Institute for Agriculture, Environment and Development & CHANGE—Global Change and Sustainability Institute, Institute for Advanced Studies and Research, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
Interests: plant tolerance to stress; plant symbiosis; plant epigenetics
Special Issues, Collections and Topics in MDPI journals
Dr. Lénia Rodrigues

E-Mail Website
Guest Editor
MED (Mediterranean Institute for Agriculture, Environment and Development) & CHANGE — Global Change and Sustainability Institute, Instituto de Investigação e Formação Avançada, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
Interests: phenotyping (calorespirometry) applied to plant breeding programs; proteomics and metabolomics involved in plant plasticity upon biotic/abiotic stresses

Special Issue Information

Dear Colleagues,

Plants are sessile organisms that have developed highly sophisticated and intricate defense mechanisms which allow them to overcome a diversity of environmental constraints, mainly related to extreme environmental conditions. Temperature (high and low temperature), water availability (drought and flowing), salinity (hypersalinity), light intensity (particularly related with integral ultraviolet part) and heavy metals have been highlighted as limiting growth factors with negative consequences on crop yield and productivity.

Complex networks of signal perception, signal canalization through a complex signaling cascade and the further induction of resistance genes are responsible for plant growth/development adjustments and adaption upon those stresses. Understanding the molecular mechanisms underlying stress signaling pathways and plant tolerance mechanisms upon those environmental constraints is extremely important for plant breeders, allowing for the development of resilient varieties/cultivars with increased plasticity.

The availability of high-throughput platforms focused on the different omics, from genomics to metabolomics, made important tools for use in identifying key genes and regulatory mechanisms responsible for plant response upon specific stress conditions available. Researchers worldwide are focused on a diversity of agronomical important plant species and are trying to understand the molecular mechanisms that underpin plant response upon environmental stresses. This Special Issue intends to report recent progress in the identification of gene(s)/gene families regulating the physiological process of plant response to abiotic stresses and their regulatory mechanisms (e.g., functional polymorphisms, DNA methylation, miRNAs, alternative polyadenylation and splicing events), which can lead to increased tolerance/adaptation towards environmental stresses.

Dr. Hélia Cardoso
Dr. Catarina Campos
Dr. Lénia Rodrigues
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

  • Cell reprogramming
  • Plant plasticity
  • Abiotic stresses
  • Stress signaling
  • Heavy metals
  • Light intensity/UV
  • Drought/flowading
  • Heat/cold/freezing
  • Stress responsive genes
  • Signaling pathway
  • miRNAs

Published Papers (3 papers)

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Research

22 pages, 4687 KiB  
Article
Dynamic Regulation of Grapevine’s microRNAs in Response to Mycorrhizal Symbiosis and High Temperature
by Catarina Campos, João Lucas Coito, Hélia Cardoso, Jorge Marques da Silva, Helena Sofia Pereira, Wanda Viegas and Amaia Nogales
Plants 2023, 12(5), 982; https://doi.org/10.3390/plants12050982 - 21 Feb 2023
Cited by 4 | Viewed by 1481
Abstract
MicroRNAs (miRNAs) are non-coding small RNAs that play crucial roles in plant development and stress responses and can regulate plant interactions with beneficial soil microorganisms such as arbuscular mycorrhizal fungi (AMF). To determine if root inoculation with distinct AMF species affected miRNA expression [...] Read more.
MicroRNAs (miRNAs) are non-coding small RNAs that play crucial roles in plant development and stress responses and can regulate plant interactions with beneficial soil microorganisms such as arbuscular mycorrhizal fungi (AMF). To determine if root inoculation with distinct AMF species affected miRNA expression in grapevines subjected to high temperatures, RNA-seq was conducted in leaves of grapevines inoculated with either Rhizoglomus irregulare or Funneliformis mosseae and exposed to a high-temperature treatment (HTT) of 40 °C for 4 h per day for one week. Our results showed that mycorrhizal inoculation resulted in a better plant physiological response to HTT. Amongst the 195 identified miRNAs, 83 were considered isomiRs, suggesting that isomiRs can be biologically functional in plants. The number of differentially expressed miRNAs between temperatures was higher in mycorrhizal (28) than in non-inoculated plants (17). Several miR396 family members, which target homeobox-leucine zipper proteins, were only upregulated by HTT in mycorrhizal plants. Predicted targets of HTT-induced miRNAs in mycorrhizal plants queried to STRING DB formed networks for Cox complex, and growth and stress-related transcription factors such as SQUAMOSA promoter-binding-like-proteins, homeobox-leucine zipper proteins and auxin receptors. A further cluster related to DNA polymerase was found in R. irregulare inoculated plants. The results presented herein provide new insights into miRNA regulation in mycorrhizal grapevines under heat stress and can be the basis for functional studies of plant-AMF-stress interactions. Full article
(This article belongs to the Special Issue Molecular Mechanisms Associated with Plant Plasticity upon Environmental Stresses)
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16 pages, 16721 KiB  
Article
Evolutionary and Gene Expression Analyses Reveal New Insights into the Role of LSU Gene-Family in Plant Responses to Sulfate-Deficiency
by Felipe Uribe, Carlos Henríquez-Valencia, Anita Arenas-M, Joaquín Medina, Elena A. Vidal and Javier Canales
Plants 2022, 11(12), 1526; https://doi.org/10.3390/plants11121526 - 7 Jun 2022
Cited by 4 | Viewed by 2248
Abstract
LSU proteins belong to a plant-specific gene family initially characterized by their strong induction in response to sulfate (S) deficiency. In the last few years, LSUs have arisen as relevant hubs in protein–protein interaction networks, in which they play relevant roles in the [...] Read more.
LSU proteins belong to a plant-specific gene family initially characterized by their strong induction in response to sulfate (S) deficiency. In the last few years, LSUs have arisen as relevant hubs in protein–protein interaction networks, in which they play relevant roles in the response to abiotic and biotic stresses. Most of our knowledge on LSU genomic organization, expression and function comes from studies in Arabidopsis and tobacco, while little is known about the LSU gene repertoire and evolution of this family in land plants. In this work, a total of 270 LSU family members were identified using 134 land plant species with whole-genome sequences available. Phylogenetic analysis revealed that LSU genes belong to a Spermatophyta-specific gene family, and their homologs are distributed in three major groups, two for dicotyledons and one group for monocotyledons. Protein sequence analyses showed four new motifs that further support the subgroup classification by phylogenetic analyses. Moreover, we analyzed the expression of LSU genes in one representative species of each phylogenetic group (wheat, tomato and Arabidopsis) and found a conserved response to S deficiency, suggesting that these genes might play a key role in S stress responses. In summary, our results indicate that LSU genes belong to the Spermatophyta-specific gene family and their response to S deficiency is conserved in angiosperms. Full article
(This article belongs to the Special Issue Molecular Mechanisms Associated with Plant Plasticity upon Environmental Stresses)
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15 pages, 3347 KiB  
Article
Role of LOC_Os01g68450, Containing DUF2358, in Salt Tolerance Is Mediated via Adaptation of Absorbed Light Energy Dissipation
by Chutarat Punchkhon, Panita Chutimanukul, Ratchata Chokwiwatkul, Triono Bagus Saputro, Aleel K. Grennan, Nuria De Diego, Lukáš Spíchal and Supachitra Chadchawan
Plants 2022, 11(9), 1233; https://doi.org/10.3390/plants11091233 - 2 May 2022
Cited by 2 | Viewed by 1724
Abstract
Salt stress affects plant growth and productivity. In this study we determined the roles of eight genes involved in photosynthesis, using gene co-expression network analysis, under salt-stress conditions using Arabidopsis knockout mutants. The green area of the leaves was minimum in the at1g65230 [...] Read more.
Salt stress affects plant growth and productivity. In this study we determined the roles of eight genes involved in photosynthesis, using gene co-expression network analysis, under salt-stress conditions using Arabidopsis knockout mutants. The green area of the leaves was minimum in the at1g65230 mutant line. Rice LOC_Os01g68450, a homolog of at1g65230, was ectopically expressed in the at1g65230 mutant line to generate revertant lines. Under salt stress, the revertant lines exhibited significantly higher net photosynthesis rates than the at1g65230 mutant line. Moreover, the operating efficiency of photosystem II (PSII) and electron transport rate of the revertant lines were higher than those of the wild type and at1g65230 mutant line after 10 days of exposure to salt stress. After this period, the protein PsbD–the component of PSII–decreased in all lines tested without significant difference among them. However, the chlorophyll a and b, carotenoid, and anthocyanin contents of revertant lines were higher than those of the mutant line. Furthermore, lower maximum chlorophyll fluorescence was detected in the revertant lines. This suggests that LOC_Os01g68450 expression contributed to the salt tolerance phenotype by modifying the energy dissipation process and led to the ability to maintain photosynthesis under salt stress conditions. Full article
(This article belongs to the Special Issue Molecular Mechanisms Associated with Plant Plasticity upon Environmental Stresses)
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