Lanthanum improves salt tolerance of maize seedlings
| Autor: | R. Q. Liu, X. J. Xu, C. J. Shan, S. Wang |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Antioxidant Physiology medicine.medical_treatment Inorganic chemistry chemistry.chemical_element macromolecular substances Plant Science Photosynthesis 01 natural sciences 03 medical and health sciences chemistry.chemical_compound Lanthanum medicine Food science Hydrogen peroxide chemistry.chemical_classification biology Glutathione peroxidase food and beverages 030104 developmental biology chemistry Catalase Chlorophyll biology.protein 010606 plant biology & botany Peroxidase |
| Zdroj: | Photosynthetica. 54:148-151 |
| ISSN: | 1573-9058 0300-3604 |
| DOI: | 10.1007/s11099-015-0157-7 |
| Popis: | In this study, the effects of lanthanum were investigated on contents of pigments, chlorophyll (Chl) fluorescence, antioxidative enzymes, and biomass of maize seedlings under salt stress. The results showed that salt stress significantly decreased the contents of Chl and carotenoids, maximum photochemical efficiency of PSII (Fv/Fm), photochemical quenching (qP), and quantum efficiency of PSII photochemistry (ΦPSII), net photosynthetic rate (P N), and biomass. Salt stress increased nonphotochemical quenching (qN), the activities of ascorbate peroxidase, catalase, superoxide dismutase, glutathione peroxidase, and the contents of malondialdehyde and hydrogen peroxide compared with control. Pretreatment with lanthanum prior to salt stress significantly enhanced the contents of Chl and carotenoids, Fv/Fm, qP, qN, ΦPSII, P N, biomass, and activities of the above antioxidant enzymes compared with the salt-stressed plants. Pretreatment with lanthanum also significantly reduced the contents of malondialdehyde and hydrogen peroxide induced by salt stress. Our results suggested that lanthanum can improve salt tolerance of maize seedlings by enhancing the function of photosynthetic apparatus and antioxidant capacity. |
| Databáze: | OpenAIRE |
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