Effects of salt treatment on growth, lipid membrane peroxidation, polyphenol content, and antioxidant activities in leaves of Sesuvium portulacastrum L
| Autor: | Inès Slama, Ahmed Debez, Ons Talbi, Rawya M’Rabet, Chedly Abdelly, Riadh Ksouri |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine chemistry.chemical_classification Antioxidant biology medicine.medical_treatment food and beverages Soil Science Photosynthesis biology.organism_classification 01 natural sciences 03 medical and health sciences 030104 developmental biology chemistry Polyphenol Halophyte Botany medicine Proline Food science Carotenoid Saline Sesuvium portulacastrum 010606 plant biology & botany |
| Zdroj: | Arid Land Research and Management. 31:404-417 |
| ISSN: | 1532-4990 1532-4982 |
| DOI: | 10.1080/15324982.2017.1329759 |
| Popis: | Changes in growth, leaf contents of proline, oxidative stress-related parameters, and phenolic compounds, and antioxidant activities were investigated in the halophyte species Sesuvium portulacastrum L. under saline conditions. Rooted cuttings were individually cultivated in sandy soil. After five weeks of pre-treatment, seedlings were submitted during one month to different salt concentrations ranging from 0 to 800 mM NaCl. The plant growth was significantly improved by salt at 200–600 mM concentration. This trend was associated with (i) the stimulation of photosynthetic activity, (ii) the protection of membrane integrity (leaf MDA content 50% lower than the control), and (iii) higher total antioxidant activity, especially at 400 mM NaCl. At this salt concentration plants accumulated high contents of proline, polyphenols, antocyanins, and carotenoids. These compounds could be implied in the protection of the photosynthetic system and in the improvement of growth. Exposure to 800 mM NaCl impaired ... |
| Databáze: | OpenAIRE |
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