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Plants
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Nitric Oxide Signaling of Plants
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Nitric Oxide Signaling of Plants

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

Deadline for manuscript submissions: closed (30 April 2021) | Viewed by 17573

Special Issue Editor

Dr. Gábor Feigl

E-Mail Website
Guest Editor
Department of Plant Biology, University of Szeged, H6726 Szeged, Hungary
Interests: plant physiology; abiotic stress; heavy metals; microelement homeostasis; reactive oxygen species; reactive nitrogen species; nitric oxide; nitro-oxidative stress; protein tyrosine nitration; remediation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Ever since its discovery in plants 22 years ago, nitric oxide (NO) has demonstrated its fundamental importance in a number of physiological and stress-related processes. NO can be formed in several pathways within plant cells, and due to its reactivity, it is able to react with its molecular environment, having a far-reaching effect on cellular and systemic events. As a signaling molecule, NO is reportedly able to interact with cGMP and Ca2+-dependent signal transduction pathways and also with reactive oxygen species. Multiple post-translational modifications of proteins are responsible for the molecular effect of NO: in addition to the reversible S-nitrosylation of proteins with cysteinyl residues, the heme group of metalloproteins can also be reversibly nitrosylated, while the nitration of tyrosine residues to 3-nitrotyrosine is a primarily irreversible process. Recently, the nitration of fatty acids and the signaling role of the formed nitro-fatty acids has also been confirmed.

While an increasing amount of information has been published discussing the properties and reactions of NO in plants, there are still many open questions and exciting challenges in this field. This Special Issue of Plants will gather and showcase articles focusing on NO signaling in plants, including its production, roles, and interactions with other signaling molecules.

Dr. Gábor Feigl
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. 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

  • nitric oxide
  • nitric oxide production
  • reactive nitrogen species
  • nitrosative stress
  • protein nitration
  • S-nitrosation
  • S-nitrosylation
  • fatty acid nitration
  • nitro-oxidative signaling
  • plant growth and development
  • stress responses
  • stress alleviation

Published Papers (4 papers)

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Research

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9 pages, 1372 KiB  
Communication
Exogenous Nitric Oxide Delays Plant Regeneration from Protoplast and Protonema Development in Physcomitrella patens
by Daniela Cervantes-Pérez, Angélica Ortega-García, Rigoberto Medina-Andrés, Ramón Alberto Batista-García and Verónica Lira-Ruan
Plants 2020, 9(10), 1380; https://doi.org/10.3390/plants9101380 - 16 Oct 2020
Cited by 2 | Viewed by 2393
Abstract
Nitric oxide (NO) has been recognized as a major player in the regulation of plant physiology and development. NO regulates cell cycle progression and cell elongation in flowering plants and green algae, although the information about NO function in non-vascular plants is scarce. [...] Read more.
Nitric oxide (NO) has been recognized as a major player in the regulation of plant physiology and development. NO regulates cell cycle progression and cell elongation in flowering plants and green algae, although the information about NO function in non-vascular plants is scarce. Here, we analyze the effect of exogenous NO on Physcomitrella patens protonema growth. We find that increasing concentrations of the NO donor sodium nitroprusside (SNP) inhibit protonema relative growth rate and cell length. To further comprehend the effect of NO on moss development, we analyze the effect of SNP 5 and 10 µM on protoplast regeneration and, furthermore, protonema formation compared with untreated plants (control). Isolated protoplasts were left to regenerate for 24 h before starting the SNP treatments that lasted five days. The results show that SNP restrains the protoplast regeneration process and the formation of new protonema cells. When SNP treatments started five days after protoplast isolation, a decrease in cell number per protonema filament was observed, indicating an inhibition of cell cycle progression. Our results show that in non-vascular plants, NO negatively regulates plant regeneration, cell cycle and cell elongation. Full article
(This article belongs to the Special Issue Nitric Oxide Signaling of Plants)
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14 pages, 3378 KiB  
Article
Reorganization of Protein Tyrosine Nitration Pattern Indicates the Relative Tolerance of Brassica napus (L.) over Helianthus annuus (L.) to Combined Heavy Metal Treatment
by Gábor Feigl, Ádám Czifra, Árpád Molnár, Attila Bodor, Etelka Kovács, Katalin Perei, Vivian Jebet and Zsuzsanna Kolbert
Plants 2020, 9(7), 902; https://doi.org/10.3390/plants9070902 - 16 Jul 2020
Cited by 8 | Viewed by 2439
Abstract
Metal-polluted areas, especially where municipal sewage is used as fertilizer, often have high concentrations of more than one metal. The development of the root system is regulated by a complex signaling network, which includes reactive oxygen and nitrogen species. The delicate balance of [...] Read more.
Metal-polluted areas, especially where municipal sewage is used as fertilizer, often have high concentrations of more than one metal. The development of the root system is regulated by a complex signaling network, which includes reactive oxygen and nitrogen species. The delicate balance of the endogenous signal system can be affected by various environmental stimuli including heavy metals (HMs) in excess. Our goal was to analyze the microelement homeostasis, root architecture, and to determine the underlying changes in the nitro-oxidative status in the root system of rapeseed (Brassica napus L.) and sunflower (Helianthus annuus L.) subjected to combined HM treatments. The effect of model-sewage in two different layouts was simulated in rhizotron system by only supplementing the highest HM concentrations (Cd, Cr, Cu, Hg, Ni, Pb, and Zn) legally allowed. The two species reacted differently to combined HM treatment; compared to the relatively sensitive sunflower, rapeseed showed better metal translocation capability and root growth even at the more severe treatment, where the pattern of protein tyrosine nitration was reorganized. The obtained results, especially the increased nitric oxide content and changed pattern of tyrosine nitration in rapeseed, can indicate acclimation and species-specific nitro-oxidative responses to combined HM stress. Full article
(This article belongs to the Special Issue Nitric Oxide Signaling of Plants)
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Review

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30 pages, 3247 KiB  
Review
Plant Nitric Oxide Signaling under Drought Stress
by Su-Ee Lau, Mohd Fadhli Hamdan, Teen-Lee Pua, Noor Baity Saidi and Boon Chin Tan
Plants 2021, 10(2), 360; https://doi.org/10.3390/plants10020360 - 13 Feb 2021
Cited by 67 | Viewed by 7343
Abstract
Water deficit caused by drought is a significant threat to crop growth and production. Nitric oxide (NO), a water- and lipid-soluble free radical, plays an important role in cytoprotection. Apart from a few studies supporting the role of NO in drought responses, little [...] Read more.
Water deficit caused by drought is a significant threat to crop growth and production. Nitric oxide (NO), a water- and lipid-soluble free radical, plays an important role in cytoprotection. Apart from a few studies supporting the role of NO in drought responses, little is known about this pivotal molecular amendment in the regulation of abiotic stress signaling. In this review, we highlight the knowledge gaps in NO roles under drought stress and the technical challenges underlying NO detection and measurements, and we provide recommendations regarding potential avenues for future investigation. The modulation of NO production to alleviate abiotic stress disturbances in higher plants highlights the potential of genetic manipulation to influence NO metabolism as a tool with which plant fitness can be improved under adverse growth conditions. Full article
(This article belongs to the Special Issue Nitric Oxide Signaling of Plants)
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16 pages, 1047 KiB  
Review
Thioredoxins: Emerging Players in the Regulation of Protein S-Nitrosation in Plants
by Tereza Jedelská, Lenka Luhová and Marek Petřivalský
Plants 2020, 9(11), 1426; https://doi.org/10.3390/plants9111426 - 24 Oct 2020
Cited by 16 | Viewed by 4744
Abstract
S-nitrosation has been recognized as an important mechanism of ubiquitous posttranslational modification of proteins on the basis of the attachment of the nitroso group to cysteine thiols. Reversible S-nitrosation, similarly to other redox-based modifications of protein thiols, has a profound effect on protein [...] Read more.
S-nitrosation has been recognized as an important mechanism of ubiquitous posttranslational modification of proteins on the basis of the attachment of the nitroso group to cysteine thiols. Reversible S-nitrosation, similarly to other redox-based modifications of protein thiols, has a profound effect on protein structure and activity and is considered as a convergence of signaling pathways of reactive nitrogen and oxygen species. This review summarizes the current knowledge on the emerging role of the thioredoxin-thioredoxin reductase (TRXR-TRX) system in protein denitrosation. Important advances have been recently achieved on plant thioredoxins (TRXs) and their properties, regulation, and functions in the control of protein S-nitrosation in plant root development, translation of photosynthetic light harvesting proteins, and immune responses. Future studies of plants with down- and upregulated TRXs together with the application of genomics and proteomics approaches will contribute to obtain new insights into plant S-nitrosothiol metabolism and its regulation. Full article
(This article belongs to the Special Issue Nitric Oxide Signaling of Plants)
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