Exogenously applied hexaconazole ameliorates salinity stress by inducing an antioxidant defense system in Brassica napus L. plants
| Autor: | Seyed Ali Mohammad Modarres-Sanavy, Mostafa Hojati, Gholam Ali Akbari, Faezeh Ghanati |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
food.ingredient
biology Chemistry Health Toxicology and Mutagenesis Brassica food and beverages General Medicine biology.organism_classification Salinity Superoxide dismutase chemistry.chemical_compound food Catalase Botany Shoot biology.protein Hexaconazole Proline Food science Canola Agronomy and Crop Science |
| Zdroj: | Pesticide Biochemistry and Physiology. 100:244-250 |
| ISSN: | 0048-3575 |
| Popis: | The ability of hexaconazole (HEX) to ameliorate salinity stress was studied in canola plants (Brassica napus L.). Canola seedlings were subjected to sodium chloride (NaCl) treatment. A treatment with 200 mM NaCl reduced growth parameters, chlorophyll content and protein content as well as increased the proline (Pro) content in canola plants. In addition, NaCl stress increased the endogenous, nonenzymatic antioxidants and the activity of antioxidant enzymes, such as peroxidase (POX; EC 1.11.1.7), superoxide dismutase (SOD; EC 1.15.1.1) and catalase (CAT; EC 1.11.1.6). When these plants were treated with a combination of NaCl and 50 mg L−1 HEX, the inhibitory effects of NaCl stress were decreased by increasing the root growth, shoot growth, dry weight (DW), chlorophyll content, protein content and antioxidant enzyme activity by ameliorating the salinity injury. These results suggested that HEX has an important role in the enhancement of plant antioxidant systems and resistance to salinity in canola plants. |
| Databáze: | OpenAIRE |
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