The search result changed since you submitted your search request. Documents might be displayed in a different sort order.
  • search hit 1 of 17
Back to Result List

A Biostimulant Obtained from the Seaweed Ascophyllum nodosum Protects Arabidopsis thaliana from Severe Oxidative Stress

  • Abiotic stresses cause oxidative damage in plants. Here, we demonstrate that foliar application of an extract from the seaweed Ascophyllum nodosum, SuperFifty (SF), largely prevents paraquat (PQ)-induced oxidative stress in Arabidopsis thaliana. While PQ-stressed plants develop necrotic lesions, plants pre-treated with SF (i.e., primed plants) were unaffected by PQ. Transcriptome analysis revealed induction of reactive oxygen species (ROS) marker genes, genes involved in ROS-induced programmed cell death, and autophagy-related genes after PQ treatment. These changes did not occur in PQ-stressed plants primed with SF. In contrast, upregulation of several carbohydrate metabolism genes, growth, and hormone signaling as well as antioxidant-related genes were specific to SF-primed plants. Metabolomic analyses revealed accumulation of the stress-protective metabolite maltose and the tricarboxylic acid cycle intermediates fumarate and malate in SF-primed plants. Lipidome analysis indicated that those lipids associated with oxidativeAbiotic stresses cause oxidative damage in plants. Here, we demonstrate that foliar application of an extract from the seaweed Ascophyllum nodosum, SuperFifty (SF), largely prevents paraquat (PQ)-induced oxidative stress in Arabidopsis thaliana. While PQ-stressed plants develop necrotic lesions, plants pre-treated with SF (i.e., primed plants) were unaffected by PQ. Transcriptome analysis revealed induction of reactive oxygen species (ROS) marker genes, genes involved in ROS-induced programmed cell death, and autophagy-related genes after PQ treatment. These changes did not occur in PQ-stressed plants primed with SF. In contrast, upregulation of several carbohydrate metabolism genes, growth, and hormone signaling as well as antioxidant-related genes were specific to SF-primed plants. Metabolomic analyses revealed accumulation of the stress-protective metabolite maltose and the tricarboxylic acid cycle intermediates fumarate and malate in SF-primed plants. Lipidome analysis indicated that those lipids associated with oxidative stress-induced cell death and chloroplast degradation, such as triacylglycerols (TAGs), declined upon SF priming. Our study demonstrated that SF confers tolerance to PQ-induced oxidative stress in A. thaliana, an effect achieved by modulating a range of processes at the transcriptomic, metabolic, and lipid levels.show moreshow less

Download full text files

  • pmnr823.pdfeng
    (4381KB)

    SHA-1: d50150f9d32b2d68c8dd25609646d35e92e068eb

Export metadata

Additional Services

Search Google Scholar Statistics
Metadaten
Author details:Mohammad Amin OmidbakhshfardORCiDGND, Sujeeth NeerakkalORCiD, Saurabh GuptaORCiDGND, Nooshin OmranianORCiDGND, Kieran J. Guinan, Yariv Brotman, Zoran NikoloskiORCiDGND, Alisdair R. FernieORCiDGND, Bernd Mueller-RoeberORCiDGND, Tsanko S. GechevORCiDGND
URN:urn:nbn:de:kobv:517-opus4-445093
DOI:https://doi.org/10.25932/publishup-44509
ISSN:1866-8372
Title of parent work (English):Postprints der Universität Potsdam : Mathematisch Naturwissenschaftliche Reihe
Publication series (Volume number):Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe (823)
Publication type:Postprint
Language:English
Date of first publication:2020/02/26
Publication year:2020
Publishing institution:Universität Potsdam
Release date:2020/02/26
Tag:Arabidopsis thaliana; Ascophyllum nodosum; biostimulant; oxidative stress tolerance; paraquat; priming; reactive oxygen species
Issue:823
Number of pages:26
Source:International Journal of Molecular Sciences 21 (2020) 2 Art. 474 DOI: 10.3390/ijms21020474
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät
DDC classification:5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften
5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie
Peer review:Referiert
Publishing method:Open Access
License (German):License LogoCC-BY - Namensnennung 4.0 International
External remark:Bibliographieeintrag der Originalveröffentlichung/Quelle
Accept ✔
This website uses technically necessary session cookies. By continuing to use the website, you agree to this. You can find our privacy policy here.