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Sunflower bark extract as a biostimulant suppresses reactive oxygen species in salt-stressed Arabidopsis

Jing Li (UGent) , Philippe Evon, Stephane Ballas, Hoang Khai Trinh (UGent) , Lin Xu (UGent) , Christof Van Poucke, Bart Van Droogenbroeck, Pierfrancesco Motti (UGent) , Sven Mangelinckx (UGent) , Aldana Ramirez (UGent) , et al.
(2022) FRONTIERS IN PLANT SCIENCE. 13.
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Abstract
A survey of plant-based wastes identified sunflower (Helianthus annuus) bark extract (SBE), produced via twin-screw extrusion, as a potential biostimulant. The addition of SBE to Arabidopsis (Arabidopsis thaliana) seedlings cultured in vitro showed a dose-dependent response, with high concentrations causing severe growth inhibition. However, when priming seeds with SBE, a small but significant increase in leaf area was observed at a dose of 0.5 g of lyophilized powder per liter. This optimal concentration of SBE in the culturing medium alleviated the growth inhibition caused by 100 mM NaCl. The recovery in shoot growth was accompanied by a pronounced increase in photosynthetic pigment levels and a stabilization of osmotic homeostasis. SBE-primed leaf discs also showed a similar protective effect. SBE mitigated salt stress by reducing the production of reactive oxygen species (ROS) (e.g., hydrogen peroxide) by about 30% and developing more expanded true leaves. This reduction in ROS levels was due to the presence of antioxidative agents in SBE and by activating ROS-eliminating enzymes. Polyphenols, carbohydrates, proteins, and other bioactive compounds detected in SBE may have contributed to the cellular redox homeostasis in salt-stressed plants, thus promoting early leaf development by relieving shoot apical meristem arrest. Sunflower stalks from which SBE is prepared can therefore potentially be valorized as a source to produce biostimulants for improving salt stress tolerance in crops.
Keywords
Helianthus annuus, plant extract, biostimulant, in vitro assay, salt, stress, antioxidant, ANTIOXIDANT ACTIVITY, RESPONSE PATHWAYS, OXIDATIVE STRESS, PHENOLIC, CONTENT, DNA-DAMAGE, PLANT, METABOLITES, ASSAY, QUANTIFICATION, VALIDATION

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Citation

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MLA
Li, Jing, et al. “Sunflower Bark Extract as a Biostimulant Suppresses Reactive Oxygen Species in Salt-Stressed Arabidopsis.” FRONTIERS IN PLANT SCIENCE, vol. 13, 2022, doi:10.3389/fpls.2022.837441.
APA
Li, J., Evon, P., Ballas, S., Trinh, H. K., Xu, L., Van Poucke, C., … Geelen, D. (2022). Sunflower bark extract as a biostimulant suppresses reactive oxygen species in salt-stressed Arabidopsis. FRONTIERS IN PLANT SCIENCE, 13. https://doi.org/10.3389/fpls.2022.837441
Chicago author-date
Li, Jing, Philippe Evon, Stephane Ballas, Hoang Khai Trinh, Lin Xu, Christof Van Poucke, Bart Van Droogenbroeck, et al. 2022. “Sunflower Bark Extract as a Biostimulant Suppresses Reactive Oxygen Species in Salt-Stressed Arabidopsis.” FRONTIERS IN PLANT SCIENCE 13. https://doi.org/10.3389/fpls.2022.837441.
Chicago author-date (all authors)
Li, Jing, Philippe Evon, Stephane Ballas, Hoang Khai Trinh, Lin Xu, Christof Van Poucke, Bart Van Droogenbroeck, Pierfrancesco Motti, Sven Mangelinckx, Aldana Ramirez, Thijs Van Gerrewey, and Danny Geelen. 2022. “Sunflower Bark Extract as a Biostimulant Suppresses Reactive Oxygen Species in Salt-Stressed Arabidopsis.” FRONTIERS IN PLANT SCIENCE 13. doi:10.3389/fpls.2022.837441.
Vancouver
1.
Li J, Evon P, Ballas S, Trinh HK, Xu L, Van Poucke C, et al. Sunflower bark extract as a biostimulant suppresses reactive oxygen species in salt-stressed Arabidopsis. FRONTIERS IN PLANT SCIENCE. 2022;13.
IEEE
[1]
J. Li et al., “Sunflower bark extract as a biostimulant suppresses reactive oxygen species in salt-stressed Arabidopsis,” FRONTIERS IN PLANT SCIENCE, vol. 13, 2022.
@article{01GQ777866A76G8HVR6GR51WK0,
  abstract     = {{A survey of plant-based wastes identified sunflower (Helianthus annuus) bark extract (SBE), produced via twin-screw extrusion, as a potential biostimulant. The addition of SBE to Arabidopsis (Arabidopsis thaliana) seedlings cultured in vitro showed a dose-dependent response, with high concentrations causing severe growth inhibition. However, when priming seeds with SBE, a small but significant increase in leaf area was observed at a dose of 0.5 g of lyophilized powder per liter. This optimal concentration of SBE in the culturing medium alleviated the growth inhibition caused by 100 mM NaCl. The recovery in shoot growth was accompanied by a pronounced increase in photosynthetic pigment levels and a stabilization of osmotic homeostasis. SBE-primed leaf discs also showed a similar protective effect. SBE mitigated salt stress by reducing the production of reactive oxygen species (ROS) (e.g., hydrogen peroxide) by about 30% and developing more expanded true leaves. This reduction in ROS levels was due to the presence of antioxidative agents in SBE and by activating ROS-eliminating enzymes. Polyphenols, carbohydrates, proteins, and other bioactive compounds detected in SBE may have contributed to the cellular redox homeostasis in salt-stressed plants, thus promoting early leaf development by relieving shoot apical meristem arrest. Sunflower stalks from which SBE is prepared can therefore potentially be valorized as a source to produce biostimulants for improving salt stress tolerance in crops.}},
  articleno    = {{837441}},
  author       = {{Li, Jing and  Evon, Philippe and  Ballas, Stephane and Trinh, Hoang Khai and Xu, Lin and  Van Poucke, Christof and  Van Droogenbroeck, Bart and Motti, Pierfrancesco and Mangelinckx, Sven and Ramirez, Aldana and Van Gerrewey, Thijs and Geelen, Danny}},
  issn         = {{1664-462X}},
  journal      = {{FRONTIERS IN PLANT SCIENCE}},
  keywords     = {{Helianthus annuus,plant extract,biostimulant,in vitro assay,salt,stress,antioxidant,ANTIOXIDANT ACTIVITY,RESPONSE PATHWAYS,OXIDATIVE STRESS,PHENOLIC,CONTENT,DNA-DAMAGE,PLANT,METABOLITES,ASSAY,QUANTIFICATION,VALIDATION}},
  language     = {{eng}},
  pages        = {{16}},
  title        = {{Sunflower bark extract as a biostimulant suppresses reactive oxygen species in salt-stressed Arabidopsis}},
  url          = {{http://doi.org/10.3389/fpls.2022.837441}},
  volume       = {{13}},
  year         = {{2022}},
}
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