Role of selenium in mitigation of cadmium toxicity in pepper grown in hydroponic condition
| Autor: | Leila Shekari, Mirza Hasanuzzaman, Mohammad Mojtaba Kamelmanesh, Farshad Sadeghi, Maryam Mozafariyan |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
chemistry.chemical_classification Chlorophyll b Cadmium Physiology food and beverages chemistry.chemical_element 010501 environmental sciences Cadmium chloride Biology 01 natural sciences chemistry.chemical_compound Horticulture chemistry Chlorophyll Botany Pepper Agronomy and Crop Science Plant nutrition Carotenoid Selenium 010606 plant biology & botany 0105 earth and related environmental sciences |
| Zdroj: | Journal of Plant Nutrition. 40:761-772 |
| ISSN: | 1532-4087 0190-4167 |
| Popis: | Selenium (Se) is an essential element for humans but is not considered as essential for plants. However, its beneficial role in improving plant growth and stress tolerances is well established. In order to study the role of Se in cadmium (Cd) toxicity in pepper (Capsicum frutescens cv. Suryankhi Cluster), this experiment was carried out in greenhouse conditions. Treatments comprised Cd [0, 0.25, and 0.5 mM cadmium chloride (CdCl2)] and Se [0, 3, and 7 µM sodium selenite (Na2SeO3)] with three replications. The result showed that Cd decreased chlorophyll a, chlorophyll b, and carotenoids, whereas Se supplementation diminished Cd toxicity on photosynthetic pigment. Selenium at 7 µM significantly increased the leaf area in the plants grown at 0.25 mM Cd. The application of Se at 3 µM with 0.25 mM Cd and Se at 3 µM and Se at 7 µM with 0.5 mM Cd increased the activity of catalase (CAT). Selenium at 7 µM decreased the proline content of pepper leaves exposed to Cd at 0.5 mM (30%). Selenium significantly ... |
| Databáze: | OpenAIRE |
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