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  1. Book ; Online: Interplay between NO Signalling, ROS, and the Antioxidant System in Plants

    Gaupels, Frank / Velikova, Violeta / Loake, Gary / Astier, Jeremy

    2017  

    Abstract: Over the last decades, nitric oxide (NO) has emerged as an essential player in redox signalling. Reactive oxygen species (ROS) also act as signals throughout all stages of plant life. Because they are potentially harmful for cellular integrity, ROS and ... ...

    Abstract Over the last decades, nitric oxide (NO) has emerged as an essential player in redox signalling. Reactive oxygen species (ROS) also act as signals throughout all stages of plant life. Because they are potentially harmful for cellular integrity, ROS and NO levels must be tightly controlled, especially by the classical antioxidant system and additional redox-active metabolites and proteins. Recent work provided evidence that NO and ROS influence each other's biosynthesis and removal. Moreover, novel signalling molecules resulting from the chemical reaction between NO, ROS and plant metabolites have been highlighted, including N2O3, ONOO-, NO2, S-nitrosoglutathione and 8-NO2 cGMP. They are involved in diverse plant physiological processes, the best characterized being stomata regulation and stress defense. Taken together, these new data demonstrate the complex interactions between NO, ROS signalling and the antioxidant system. This Frontiers in Plant Science Research Topic aims to provide an updated and complete overview of this important and rapidly expanding area through original article and detailed reviews
    Keywords Microbiology ; Botany ; Science (General)
    Size 1 electronic resource (206 p.)
    Publisher Frontiers Media SA
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT020094992
    ISBN 9782889450695 ; 2889450694
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Book ; Online ; Thesis: Local and systemic defence signalling in plants

    Gaupels, Frank [Verfasser]

    2016  

    Author's details Frank Gaupels
    Keywords Biowissenschaften, Biologie ; Life Science, Biology
    Subject code sg570
    Language English
    Publisher Universitätsbibliothek
    Publishing place Gießen
    Document type Book ; Online ; Thesis
    Database Digital theses on the web

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  3. Article: Ozone and nitrogen dioxide regulate similar gene expression responses in Arabidopsis but natural variation in the extent of cell death is likely controlled by different genetic loci.

    Leppälä, Johanna / Gaupels, Frank / Xu, Enjun / Morales, Luis O / Durner, Jörg / Brosché, Mikael

    Frontiers in plant science

    2022  Volume 13, Page(s) 994779

    Abstract: High doses of ozone ( ... ...

    Abstract High doses of ozone (O
    Language English
    Publishing date 2022-10-19
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2613694-6
    ISSN 1664-462X
    ISSN 1664-462X
    DOI 10.3389/fpls.2022.994779
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Book ; Online ; Thesis: Synthese und Transport von Signalen im Phloem nach Verwundung, Induktion einer Pathogenresistenz und abiotischem Stress

    Gaupels, Frank

    2006  

    Author's details vorgelegt von Frank Gaupels
    Language German
    Size Online-Ressource
    Document type Book ; Online ; Thesis
    Thesis / German Habilitation thesis Univ., Diss--Gießen, 2006
    Database Former special subject collection: coastal and deep sea fishing

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  5. Article: Production, amplification and systemic propagation of redox messengers in plants? The phloem can do it all!

    Gaupels, Frank / Jörg Durner / Karl‐Heinz Kogel

    new phytologist. 2017 Apr., v. 214, no. 2

    2017  

    Abstract: Rapid long‐distance signalling is an emerging topic in plant research, and is particularly associated with responses to biotic and abiotic stress. Systemic acquired resistance (SAR) to pathogen attack is dependent on nitric oxide (NO) and reactive ... ...

    Abstract Rapid long‐distance signalling is an emerging topic in plant research, and is particularly associated with responses to biotic and abiotic stress. Systemic acquired resistance (SAR) to pathogen attack is dependent on nitric oxide (NO) and reactive oxygen species (ROS) such as hydrogen peroxide (H₂O₂). By comparison, systemic wound responses (SWRs) and systemic acquired acclimation (SAA) to abiotic stress encounters are triggered by rapid waves of H₂O₂, calcium and electrical signalling. Efforts have been made to decipher the relationship between redox messengers, calcium and other known systemic defence signals. Less is known about possible routes of signal transduction throughout the entire plant. Previously, the phloem has been suggested to be a transport conduit for mobile signals inducing SAR, SWR and SAA. This review highlights the role of the phloem in systemic redox signalling by NO and ROS. A not yet identified calcium‐dependent NO source and S‐nitrosoglutathione reductase are candidate regulators of NO homeostasis in the phloem, whereas ROS concentrations are controlled by NADPH oxidases and the H₂O₂‐scavenging enzyme ascorbate peroxidase. Possible amplification mechanisms in phloem‐mediated systemic redox signalling are discussed.
    Keywords abiotic stress ; acclimation ; ascorbate peroxidase ; calcium ; homeostasis ; hydrogen peroxide ; NADP (coenzyme) ; nitric oxide ; pathogens ; phloem ; signal transduction ; systemic acquired resistance
    Language English
    Dates of publication 2017-04
    Size p. 554-560.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 208885-x
    ISSN 1469-8137 ; 0028-646X
    ISSN (online) 1469-8137
    ISSN 0028-646X
    DOI 10.1111/nph.14399
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 868: Show issues

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  6. Article ; Online: Blue-green fluorescence during hypersensitive cell death arises from phenylpropanoid deydrodimers.

    Kanawati, Basem / Bertic, Marko / Moritz, Franco / Habermann, Felix / Zimmer, Ina / Mackey, David / Schmitt-Kopplin, Philippe / Schnitzler, Jörg-Peter / Durner, Jörg / Gaupels, Frank

    Plant direct

    2023  Volume 7, Issue 9, Page(s) e531

    Abstract: Infection of Arabidopsis with ... ...

    Abstract Infection of Arabidopsis with avirulent
    Language English
    Publishing date 2023-09-12
    Publishing country England
    Document type Journal Article
    ISSN 2475-4455
    ISSN (online) 2475-4455
    DOI 10.1002/pld3.531
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Gas Alert: The NO

    Kasten, Dörte / Durner, Jörg / Gaupels, Frank

    Frontiers in plant science

    2017  Volume 8, Page(s) 85

    Language English
    Publishing date 2017-01-31
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2613694-6
    ISSN 1664-462X
    ISSN 1664-462X
    DOI 10.3389/fpls.2017.00085
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Production, amplification and systemic propagation of redox messengers in plants? The phloem can do it all!

    Gaupels, Frank / Durner, Jörg / Kogel, Karl-Heinz

    The New phytologist

    2017  Volume 214, Issue 2, Page(s) 554–560

    Abstract: Rapid long-distance signalling is an emerging topic in plant research, and is particularly associated with responses to biotic and abiotic stress. Systemic acquired resistance (SAR) to pathogen attack is dependent on nitric oxide (NO) and reactive oxygen ...

    Abstract Rapid long-distance signalling is an emerging topic in plant research, and is particularly associated with responses to biotic and abiotic stress. Systemic acquired resistance (SAR) to pathogen attack is dependent on nitric oxide (NO) and reactive oxygen species (ROS) such as hydrogen peroxide (H
    MeSH term(s) Nitric Oxide/metabolism ; Oxidation-Reduction ; Phloem/metabolism ; Plants/metabolism ; Reactive Oxygen Species/metabolism ; Signal Transduction
    Chemical Substances Reactive Oxygen Species ; Nitric Oxide (31C4KY9ESH)
    Language English
    Publishing date 2017-01-03
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 208885-x
    ISSN 1469-8137 ; 0028-646X
    ISSN (online) 1469-8137
    ISSN 0028-646X
    DOI 10.1111/nph.14399
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

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    In stock of ZB MED Bonn / Germany

    Z 868: Show issues

    Order via subito

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  9. Article: A T-DNA mutant screen that combines high-throughput phenotyping with the efficient identification of mutated genes by targeted genome sequencing

    Frank, Ulrike / Kublik, Susanne / Mayer, Dörte / Engel, Marion / Schloter, Michael / Durner, Jörg / Gaupels, Frank

    BMC plant biology. 2019 Dec., v. 19, no. 1

    2019  

    Abstract: BACKGROUND: Nitrogen dioxide (NO2) triggers hypersensitive response (HR)-like cell death in Arabidopsis thaliana. A high-throughput mutant screen was established to identify genes involved in this type of programmed cell death. RESULTS: Altogether 14,282 ...

    Abstract BACKGROUND: Nitrogen dioxide (NO2) triggers hypersensitive response (HR)-like cell death in Arabidopsis thaliana. A high-throughput mutant screen was established to identify genes involved in this type of programmed cell death. RESULTS: Altogether 14,282 lines of SALK T-DNA insertion mutants were screened. Growing 1000 pooled mutant lines per tray and simultaneous NO2 fumigation of 4 trays in parallel facilitated high-throughput screening. Candidate mutants were selected based on visible symptoms. Sensitive mutants showed lesions already after fumigation for 1 h with 10 ppm (ppm) NO2 whereas tolerant mutants were hardly damaged even after treatment with 30 ppm NO2. Identification of T-DNA insertion sites by adapter ligation-mediated PCR turned out to be successful but rather time consuming. Therefore, next generation sequencing after T-DNA-specific target enrichment was tested as an alternative screening method. The targeted genome sequencing was highly efficient due to (1.) combination of the pooled DNA from 124 candidate mutants in only two libraries, (2.) successful target enrichment using T-DNA border-specific 70mer probes, and (3.) stringent filtering of the sequencing reads. Seventy mutated genes were identified by at least 3 sequencing reads. Ten corresponding mutants were re-screened of which 8 mutants exhibited NO2-sensitivity or -tolerance confirming that the screen yielded reliable results. Identified candidate genes had published functions in HR, pathogen resistance, and stomata regulation. CONCLUSIONS: The presented NO2 dead-or-alive screen combined with next-generation sequencing after T-DNA-specific target enrichment was highly efficient. Two researchers finished the screen within 3 months. Moreover, the target enrichment approach was cost-saving because of the limited number of DNA libraries and sequencing runs required. The experimental design can be easily adapted to other screening approaches e.g. involving high-throughput treatments with abiotic stressors or phytohormones.
    Keywords Arabidopsis thaliana ; DNA libraries ; abiotic stress ; cost effectiveness ; experimental design ; fumigation ; genes ; genetic lines ; high-throughput nucleotide sequencing ; high-throughput screening methods ; hypersensitive response ; mutants ; nitrogen dioxide ; pathogens ; phenotype ; plant hormones ; polymerase chain reaction ; programmed cell death ; screening ; stomata ; transfer DNA ; trays
    Language English
    Dates of publication 2019-12
    Size p. 539.
    Publishing place BioMed Central
    Document type Article
    ISSN 1471-2229
    DOI 10.1186/s12870-019-2162-7
    Database NAL-Catalogue (AGRICOLA)

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  10. Article: The extrafascicular phloem is made for fighting.

    Gaupels, Frank / Ghirardo, Andrea

    Frontiers in plant science

    2013  Volume 4, Page(s) 187

    Language English
    Publishing date 2013-06-11
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2613694-6
    ISSN 1664-462X
    ISSN 1664-462X
    DOI 10.3389/fpls.2013.00187
    Database MEDical Literature Analysis and Retrieval System OnLINE

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