Exogenous proline enhances growth, mineral uptake, antioxidant defense, and reduces cadmium-induced oxidative damage in young date palm (Phoenix dactylifera L.)
| Autor: | Chedlia Ben Ahmed, Ferjani Ben Abdallah, Mohamed Zouari, David Delmail, Béchir Ben Rouina, Nada Elloumi, Pascal Labrousse |
|---|---|
| Přispěvatelé: | Laboratory of Plant Biodiversity and Dynamic of Ecosystems in Arid Area, Faculté des Sciences de Sfax, Université de Sfax - University of Sfax-Université de Sfax - University of Sfax, Laboratory of Improvement of Olive Productivity and Fruit Trees, Olive Tree Institute of Sfax, Institut des Sciences Chimiques de Rennes (ISCR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Groupement de Recherche Eau, Sol, Environnement (GRESE), Université de Limoges (UNILIM), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
inorganic chemicals Environmental Engineering Antioxidant medicine.medical_treatment Mineral nutrition chemistry.chemical_element Growth 010501 environmental sciences Management Monitoring Policy and Law medicine.disease_cause 01 natural sciences Botany medicine [CHIM]Chemical Sciences Proline Food science Sugar 0105 earth and related environmental sciences Nature and Landscape Conservation Cadmium biology food and beverages APX Oxidative Stress chemistry Antioxidant defense system biology.protein Phoenix dactylifera Date palm plant Oxidative stress 010606 plant biology & botany Peroxidase |
| Zdroj: | Ecological Engineering Ecological Engineering, Elsevier, 2016, 86, pp.202--209. ⟨10.1016/j.ecoleng.2015.11.016⟩ Ecological Engineering, 2016, 86, pp.202--209. ⟨10.1016/j.ecoleng.2015.11.016⟩ |
| ISSN: | 0925-8574 1872-6992 |
| Popis: | International audience; The aim of this study was to investigate the effects of cadmium stress on growth and physiological traits in young date palms and to evaluate the role of exogenous proline in cadmium stress alleviation. Two-year-old date palm plants were subjected for five months to different cadmium stress levels (10 and 30 mg CdCl2 kg−1 soil) supplied or not with exogenous proline (20 mM) through irrigation water. Cadmium stress caused a decline in growth, macronutrient contents (Ca2+, Mg2+, and K+), membrane stability index (MSI), starch content and guaiacol peroxidase (POD) activity. In contrast, an increase of H2O2, soluble sugar, ascorbate peroxidase (APX) activity as well as total polyphenols was observed. Interestingly, exogenous proline effectively mitigated the adverse effects of cadmium on young date palms. Indeed, Cd accumulation was decreased and antioxidant defense systems were significantly (p ≤ 0.05) activated in date palm leaves and roots. Consequently, growth and mineral nutrition were enhanced when proline was added to Cd stressed plants |
| Databáze: | OpenAIRE |
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