ArticleBMC genomics2012
Transcriptional and metabolomic analysis of Ascophyllum nodosum mediated freezing tolerance in Arabidopsis thaliana.
Article in BMC genomics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.
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Who cites it
37 citing papers in PubMed.
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- Marine and terrestrial biostimulant elicitors of tolerance to cold stress.Frontiers in plant science · 2025Review
- Biostimulators with marine algae extracts and their role in increasing tolerance to drought stress in highbush blueberry cultivation.PloS one · 2024Article
- Application of seaweed extracts to mitigate biotic and abiotic stresses in plants.Physiology and molecular biology of plants : an international journal of functional plant biology · 2023Review
- Brown Seaweed Extract (BSE) Application Influences Auxin- and ABA-Related Gene Expression, Root Development, and Sugar Yield inPlants (Basel, Switzerland) · 2023Article
- Transcriptomic and physiological approaches to decipher cold stress mitigation exerted by brown-seaweed extract application in tomato.Frontiers in plant science · 2023Article
- Coping with the cold: unveiling cryoprotectants, molecular signaling pathways, and strategies for cold stress resilience.Frontiers in plant science · 2023Review
- Understanding the mode of action of AgroGainFrontiers in plant science · 2023Article
- Current Insights into the Molecular Mode of Action of Seaweed-Based Biostimulants and the Sustainability of Seaweeds as Raw Material Resources.International journal of molecular sciences · 2022Review
- Identification of Gene Biomarkers for Tigilanol Tiglate Content inMolecules (Basel, Switzerland) · 2022Article
- Transcriptomic changes induced by applications of a commercial extract of Ascophyllum nodosum on tomato plants.Scientific reports · 2022Article
- Strategies and prospects for biostimulants to alleviate abiotic stress in plants.Frontiers in plant science · 2022Review
- Phosphite treatment can improve root biomass and nutrition use efficiency in wheat.Frontiers in plant science · 2022Article
- Biostimulants for the Regulation of Reactive Oxygen Species Metabolism in Plants under Abiotic Stress.Cells · 2021Review
- Biostimulant Properties of Seaweed Extracts in Plants: Implications towards Sustainable Crop Production.Plants (Basel, Switzerland) · 2021Review
Corrections and comments
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundWe have previously shown that lipophilic components (LPC) of the brown seaweed Ascophyllum nodosum (ANE) improved freezing tolerance in Arabidopsis thaliana. However, the mechanism(s) of this induced freezing stress tolerance is largely unknown. Here, we investigated LPC induced changes in the transcriptome and metabolome of A. thaliana undergoing freezing stress.
resultsGene expression studies revealed that the accumulation of proline was mediated by an increase in the expression of the proline synthesis genes P5CS1 and P5CS2 and a marginal reduction in the expression of the proline dehydrogenase (ProDH) gene. Moreover, LPC application significantly increased the concentration of total soluble sugars in the cytosol in response to freezing stress. Arabidopsis sfr4 mutant plants, defective in the accumulation of free sugars, treated with LPC, exhibited freezing sensitivity similar to that of untreated controls. The 1H NMR metabolite profile of LPC-treated Arabidopsis plants exposed to freezing stress revealed a spectrum dominated by chemical shifts (δ) representing soluble sugars, sugar alcohols, organic acids and lipophilic components like fatty acids, as compared to control plants. Additionally, 2D NMR spectra suggested an increase in the degree of unsaturation of fatty acids in LPC treated plants under freezing stress. These results were supported by global transcriptome analysis. Transcriptome analysis revealed that LPC treatment altered the expression of 1113 genes (5%) in comparison with untreated plants. A total of 463 genes (2%) were up regulated while 650 genes (3%) were down regulated.
conclusionTaken together, the results of the experiments presented in this paper provide evidence to support LPC mediated freezing tolerance enhancement through a combination of the priming of plants for the increased accumulation of osmoprotectants and alteration of cellular fatty acid composition.
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