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Delineating drought-induced antioxidative traits as potential mechanisms for climate resilience in Argania spinosa

dc.contributor.authorAbdelghani CHAKHCHAR
dc.contributor.authorMerieme SOUFIANI
dc.contributor.authorMouna LAMAOUI
dc.contributor.authorAbderrahim FERRADOUS
dc.contributor.authorSaid WAHBI
dc.contributor.authorAbdelhamid EL MOUSADIK
dc.contributor.authorSaad IBNSOUDA-KORAICHI
dc.contributor.authorAbdelkarim FILALI-MALTOUF
dc.contributor.authorCherkaoui EL MODAFAR
dc.contributor.otherUniversité Cadi Ayyad, Ecole Normale Supérieure de Marrakech, Laboratoire Interdisciplinaire de Recherche en Bioressources, Environnement et Matériaux, Marrakech 40000; Université Cadi Ayyad, Faculté des Sciences et Techniques, Centre Agrobiotechnologie et Bioingénierie, Unité de Recherche Labellisée CNRST (AgroBiotech-URL-CNRST 05), Marrakech 40000
dc.contributor.otherUniversité Cadi Ayyad, Faculté des Sciences et Techniques, Centre Agrobiotechnologie et Bioingénierie, Unité de Recherche Labellisée CNRST (AgroBiotech-URL-CNRST 05), Marrakech 40000
dc.contributor.otherUniversité Sultan Moulay Slimane, Faculté Polydisciplinaire, Laboratoire Polyvalent en Recherche et Développement, Beni Mellal
dc.contributor.otherCentre Régional de la Recherche Forestière, Marrakech
dc.contributor.otherUniversité Cadi Ayyad, Faculté des Sciences, Laboratoire Agro-Alimentaire, Biotechnologies et Valorisation des Bioressources Végétales, Marrakech 40000
dc.contributor.otherUniversité Ibn Zohr, Faculté des Sciences, Laboratoire de Biotechnologie et Valorisation des Ressources Naturelles
dc.contributor.otherUniversité Sidi Mohamed Ben Abdellah, Faculté des Sciences et Techniques, Laboratoire de Biotechnologie Microbienne et de Molécules Bioactives
dc.contributor.otherUniversité Mohammed V, Faculté des Sciences, Laboratoire de Microbiologie et Biologie Moléculaire, Centre de Biotechnologie Végétale et Microbienne Biodiversité et Environnement, Rabat 10000
dc.contributor.otherUniversité Cadi Ayyad, Faculté des Sciences et Techniques, Centre Agrobiotechnologie et Bioingénierie, Unité de Recherche Labellisée CNRST (AgroBiotech-URL-CNRST 05), Marrakech 40000
dc.date.accessioned2025-10-09T05:14:57Z
dc.date.available2025-10-09T05:14:57Z
dc.date.issued01-September-2024
dc.identifier.urihttps://www.notulaebiologicae.ro/index.php/nsb/article/view/12000
dc.identifier.urihttp://digilib.fisipol.ugm.ac.id/repo/handle/15717717/40875
dc.description.abstractDrought stress ranks among the most critical environmental challenges facing agriculture today, causing significant impairments to plant growth and development. In Morocco, these negative impacts are projected to intensify further under the combined pressures of climate change and the worsening water shortage crisis. The imperative need for sustainable arganiculture (cultivation of Argane trees) in dry lands necessitates the expeditious identification of drought-tolerant elite Argania spinosa trees. In this context, we investigated the drought tolerance of 2-year-old A. spinosa seedlings from two contrasting provenances Lakhssas (LKS) and Aoulouz (ALZ) under severe stress by evaluating their antioxidative defense mechanisms. A total of 24 parameters related to reactive oxygen species (ROS), oxidative damage, and enzymatic and non-enzymatic antioxidant defense were measured and compared between both provenances. The results showed that the drought-stressed conditions significantly increased the activity of enzymatic antioxidants, including superoxide dismutase, catalase, peroxidase, polyphenoloxidase, glutathione peroxidase, glutathione S-transferase, and ascorbate-glutathione cycle enzymes, as well as the content of non-enzymatic antioxidants, including reduced glutathione (GSH), ascorbic acid (AsA), α-Tocopherols (α-toc), polyphenols, anthocyanins, and group thiols. The ability of A. spinosa trees to greatly enhance their antioxidant system to limit cellular damage caused by ROS production might be an important attribute linked to drought tolerance. Regarding the inter-provenance variation under drought stress conditions, LKS provenance exhibited superior antioxidative capacity through enhanced AsA-GSH cycle activity and elevated levels of AsA-GSH, α-toc, and polyphenols. However, ALZ demonstrated elevated anthocyanin levels and reduced peroxidative stress markers (hydrogen peroxide and malonyldialdehyde). Significant and positive correlations were recorded between studied ROS and antioxidants. Investigating the multifaceted antioxidative defense system underpinning drought tolerance in A. spinosa can facilitate the identification of drought-tolerant argane trees for the development of a future breeding program allowing sustainable arganiculture in dry lands.
dc.language.isoEN
dc.publisherSociety of Land Measurements and Cadastre from Transylvania (SMTCT)
dc.subject.lccAgriculture (General)
dc.titleDelineating drought-induced antioxidative traits as potential mechanisms for climate resilience in Argania spinosa
dc.typeArticle
dc.description.keywordsantioxidants
dc.description.keywordsArgania spinosa
dc.description.keywordsascorbate-glutathione cycle
dc.description.keywordsdrought tolerance
dc.description.keywordsoxidative stress
dc.description.keywordsreactive oxygen species
dc.description.doi10.55779/nsb16312000
dc.title.journalNotulae Scientia Biologicae
dc.identifier.e-issn2067-3264
dc.identifier.oaioai:doaj.org/journal:40ff227f6d3d4950a3e0d50ea7c1fcfb
dc.journal.infoVolume 16, Issue 3


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