Effect of crude extract and polysaccharides derived from Fucus spiralis on radish plants Raphanus sativus L. agrophysiological traits under drought stress

Abstract Drought is a significant environmental stressor that induces changes in the physiological, morphological, biochemical, and molecular traits of plants, ultimately resulting in reduced plant growth and crop productivity. Seaweed extracts are thought to be effective in mitigating the effects o...

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Main Authors: Safaa Er-rqaibi, Karim Lyamlouli, Houda El Yacoubi, Mohammed El Mehdi El Boukhari
Format: Article
Language:English
Published: BMC 2025-01-01
Series:BMC Plant Biology
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Online Access:https://doi.org/10.1186/s12870-024-06023-2
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author Safaa Er-rqaibi
Karim Lyamlouli
Houda El Yacoubi
Mohammed El Mehdi El Boukhari
author_facet Safaa Er-rqaibi
Karim Lyamlouli
Houda El Yacoubi
Mohammed El Mehdi El Boukhari
author_sort Safaa Er-rqaibi
collection DOAJ
description Abstract Drought is a significant environmental stressor that induces changes in the physiological, morphological, biochemical, and molecular traits of plants, ultimately resulting in reduced plant growth and crop productivity. Seaweed extracts are thought to be effective in mitigating the effects of drought stress on plants. In this study, we investigated the impact of crude extract (CE), and polysaccharides (PS) derived from the brown macroalgae Fucus spiralis (Heterokontophyta, Phaeophyceae) applied at 5% (v/v) and 0.1% (w/v) respectively on radish plants Raphanus sativus L. subjected to varying levels of drought stress, specifically 80% of field capacity (FC) for no stress, 60% FC for moderate stress, and 40% FC for severe stress. Our examination of growth parameters, along with physiological and biochemical characteristics, revealed that both CE and PS increased the fresh weight over the control by 47.43% and 64% at 40% FC and 12.5% and 38% at 60% FC respectively. Under stress (40% FC), the application of CE and PS decreased proline content of radish leaves by 23.45% and 6.46% respectively in comparison with the control. Furthermore, PS treatment caused an increase of the alkaline phosphatase and urease activity in the soil by 182.5% and 34.6% respectively. CE and PS treatments led to decreased sugar content and total phenolics levels. Notably, lipid peroxidation was reduced in stressed plants treated with both CE and PS, with PS treatment yielding lower concentrations (3.75 nmol MDA.g− 1 FW at 40% FC). Overall, F. spiralis extracts interacted through several mechanisms using various compounds to mitigate the negative effects of drought stress on radish plants. These results demonstrate that seaweed extracts could be adopted in integrated production systems to boost food productivity under harsh climatic conditions.
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publishDate 2025-01-01
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spelling doaj-art-36b9d370e4bc488d8fe6429e9d3c8b972025-01-19T12:16:47ZengBMCBMC Plant Biology1471-22292025-01-0125111210.1186/s12870-024-06023-2Effect of crude extract and polysaccharides derived from Fucus spiralis on radish plants Raphanus sativus L. agrophysiological traits under drought stressSafaa Er-rqaibi0Karim Lyamlouli1Houda El Yacoubi2Mohammed El Mehdi El Boukhari3Agrobiosciences Laboratory, College of Agriculture and Environmental Sciences, Mohammed VI Polytechnic UniversityAgrobiosciences Laboratory, College of Agriculture and Environmental Sciences, Mohammed VI Polytechnic UniversityNatural Resources & Sustainable Development Laboratory, Faculty of Sciences, Ibn Tofail UniversityAgrobiosciences Laboratory, College of Agriculture and Environmental Sciences, Mohammed VI Polytechnic UniversityAbstract Drought is a significant environmental stressor that induces changes in the physiological, morphological, biochemical, and molecular traits of plants, ultimately resulting in reduced plant growth and crop productivity. Seaweed extracts are thought to be effective in mitigating the effects of drought stress on plants. In this study, we investigated the impact of crude extract (CE), and polysaccharides (PS) derived from the brown macroalgae Fucus spiralis (Heterokontophyta, Phaeophyceae) applied at 5% (v/v) and 0.1% (w/v) respectively on radish plants Raphanus sativus L. subjected to varying levels of drought stress, specifically 80% of field capacity (FC) for no stress, 60% FC for moderate stress, and 40% FC for severe stress. Our examination of growth parameters, along with physiological and biochemical characteristics, revealed that both CE and PS increased the fresh weight over the control by 47.43% and 64% at 40% FC and 12.5% and 38% at 60% FC respectively. Under stress (40% FC), the application of CE and PS decreased proline content of radish leaves by 23.45% and 6.46% respectively in comparison with the control. Furthermore, PS treatment caused an increase of the alkaline phosphatase and urease activity in the soil by 182.5% and 34.6% respectively. CE and PS treatments led to decreased sugar content and total phenolics levels. Notably, lipid peroxidation was reduced in stressed plants treated with both CE and PS, with PS treatment yielding lower concentrations (3.75 nmol MDA.g− 1 FW at 40% FC). Overall, F. spiralis extracts interacted through several mechanisms using various compounds to mitigate the negative effects of drought stress on radish plants. These results demonstrate that seaweed extracts could be adopted in integrated production systems to boost food productivity under harsh climatic conditions.https://doi.org/10.1186/s12870-024-06023-2DroughtPlant biostimulantMitigationPolysaccharidesAlgae
spellingShingle Safaa Er-rqaibi
Karim Lyamlouli
Houda El Yacoubi
Mohammed El Mehdi El Boukhari
Effect of crude extract and polysaccharides derived from Fucus spiralis on radish plants Raphanus sativus L. agrophysiological traits under drought stress
BMC Plant Biology
Drought
Plant biostimulant
Mitigation
Polysaccharides
Algae
title Effect of crude extract and polysaccharides derived from Fucus spiralis on radish plants Raphanus sativus L. agrophysiological traits under drought stress
title_full Effect of crude extract and polysaccharides derived from Fucus spiralis on radish plants Raphanus sativus L. agrophysiological traits under drought stress
title_fullStr Effect of crude extract and polysaccharides derived from Fucus spiralis on radish plants Raphanus sativus L. agrophysiological traits under drought stress
title_full_unstemmed Effect of crude extract and polysaccharides derived from Fucus spiralis on radish plants Raphanus sativus L. agrophysiological traits under drought stress
title_short Effect of crude extract and polysaccharides derived from Fucus spiralis on radish plants Raphanus sativus L. agrophysiological traits under drought stress
title_sort effect of crude extract and polysaccharides derived from fucus spiralis on radish plants raphanus sativus l agrophysiological traits under drought stress
topic Drought
Plant biostimulant
Mitigation
Polysaccharides
Algae
url https://doi.org/10.1186/s12870-024-06023-2
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