Ulvan crude extract’s chemical and biophysical profile and its effect as a biostimulant on Arabidopsis thaliana

Shefer, Shai; Lebendiker, Mario; Finkelshtein, Alin; Chamovitz, Daniel; Golberg, Alexander

doi:10.1016/j.algal.2021.102609

Cited by 6 publications

(2 citation statements)

References 63 publications

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“…(Kidgell et al 2019 ; Ning et al 2022 ; Olasehinde et al 2019 ; Olsson et al 2020 ). Ulvan, as the main active component of Ulva sp., has a variety of biological activities, such as anti-inflammatory (Kidgell et al 2020 ), anticoagulant (Faggio et al 2016 ), anti-tumor (Pradhan et al 2020 ), antioxidant (Pradhan et al 2022 ), anti-hyperlipidemia (Yuan et al 2018 ), immune regulation (Fernández-Díaz et al 2017 ), and plant growth-promoting activities (Shefer et al 2022 ). Therefore, ulvan has application prospects in biomedicine, cosmetics, food, health products, and other industries (Berri et al 2017 ; Cindana Mo’o et al 2020 ; Morelli et al 2019 ; Ning et al 2022 ; Samah and Hadear 2019 ; Yaich et al 2017 ).…”

Section: Introductionmentioning

confidence: 99%

Ulvan and Ulva oligosaccharides: a systematic review of structure, preparation, biological activities and applications

Li,

Tang,

et al. 2023

Bioresour. Bioprocess.

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Ulva is one of the main green algae causing green tide disasters. Ulvan is the primarily component polysaccharide of the cell wall of Ulva and its complex structure and monosaccharide composition resulted in various biological activities. However, the high-value and effective utilization of extracted ulvan have been obstructed by limitations ranging from large molecular weight and low solubility to poor bioavailability. Ulva oligosaccharide obtained by degrading ulvan can not only ideally retain the various biological activities of ulvan very well but also effectively solve the problems of low solubility and poor bioavailability. The preparation and biological activity studies of ulvan and Ulva oligosaccharides have become a hot spot in the field of marine biological resources development research. At present, the comprehensive reviews of ulvan and Ulva oligosaccharides are still scarce. What are overviewed in this paper are the chemical composition, structure, extraction, and purification of ulvan and Ulva oligosaccharides, where research progress on the biological activities of ulvan and Ulva oligosaccharides is summarized and prospected. A theoretical and practical basis has been provided for further research on ulvan and Ulva oligosaccharides, as well as the high-value development and effective utilization of marine algae resources. Graphical Abstract

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Section: Introductionmentioning

confidence: 99%

Ulvan and Ulva oligosaccharides: a systematic review of structure, preparation, biological activities and applications

Li,

Tang,

et al. 2023

Bioresour. Bioprocess.

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show abstract

“…were shown to contain macro- and micronutrients, phytohormones, osmoprotectants, and other compounds with possible biological activities ( Chbani et al, 2015 ; Shoubaky and Salem, 2016 ; Nabti et al, 2017 ). The presence of these compounds may accounts for well documented, Ulva extract-dependent, plant-growth promoting properties ( Gireesh et al, 2011 ; Divya et al, 2015 ; Castellanos-Barriga et al, 2017 ; Paulert et al, 2021 ; Shefer et al, 2022 ). In addition to ulvans, Ulva spp.…”

Section: Introductionmentioning

confidence: 99%

Arabinogalactan Protein-Like Proteins From Ulva lactuca Activate Immune Responses and Plant Resistance in an Oilseed Crop

et al. 2022

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Natural compounds isolated from macroalgae are promising, ecofriendly, and multifunctional bioinoculants, which have been tested and used in agriculture. Ulvans, for instance, one of the major polysaccharides present in Ulva spp. cell walls, have been tested for their plant growth-promoting properties as well as their ability to activate plant immune defense, on a large variety of crops. Recently, we have characterized for the first time an arabinogalactan protein-like (AGP-like) from Ulva lactuca, which exhibits several features associated to land plant AGPs. In land plant, AGPs were shown to play a role in several plant biological functions, including cell morphogenesis, reproduction, and plant-microbe interactions. Thus, isolated AGP-like proteins may be good candidates for either the plant growth-promoting properties or the activation of plant immune defense. Here, we have isolated an AGP-like enriched fraction from Ulva lactuca and we have evaluated its ability to (i) protect oilseed rape (Brassica napus) cotyledons against Leptosphaeria maculans, and (ii) its ability to activate immune responses. Preventive application of the Ulva AGP-like enriched fraction on oilseed rape, followed by cotyledon inoculation with the fungal hemibiotroph L. maculans, resulted in a major reduction of infection propagation. The noticed reduction correlated with an accumulation of H2O2 in treated cotyledons and with the activation of SA and ET signaling pathways in oilseed rape cotyledons. In parallel, an ulvan was also isolated from Ulva lactuca. Preventive application of ulvan also enhanced plant resistance against L. maculans. Surprisingly, reduction of infection severity was only observed at high concentration of ulvan. Here, no such significant changes in gene expression and H2O2 production were observed. Together, this study indicates that U. lactuca AGP-like glycoproteins exhibit promising elicitor activity and that plant eliciting properties of Ulva extract, might result not only from an ulvan-originated eliciting activities, but also AGP-like originated.

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Purification and Characterization of Ulvans from Chilean Ulva lactuca and Assessment of the Stimulation of Growth Induced by Ulvans and Oligo-Ulvans in Arabidopsis thaliana

Osorio,

Laporte,

Romero

et al. 2024

J Plant Growth Regul

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Ulvan crude extract’s chemical and biophysical profile and its effect as a biostimulant on Arabidopsis thaliana

Cited by 6 publications

References 63 publications

Ulvan and Ulva oligosaccharides: a systematic review of structure, preparation, biological activities and applications

Ulvan and Ulva oligosaccharides: a systematic review of structure, preparation, biological activities and applications

Arabinogalactan Protein-Like Proteins From Ulva lactuca Activate Immune Responses and Plant Resistance in an Oilseed Crop

Purification and Characterization of Ulvans from Chilean Ulva lactuca and Assessment of the Stimulation of Growth Induced by Ulvans and Oligo-Ulvans in Arabidopsis thaliana

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