Studies on germination, seedling vigour, lipid peroxidation and proline metabolism in Catharanthus roseus seedlings under salt stress
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چکیده
منابع مشابه
Responses of proline, lipid peroxidation and antioxidative enzymes in two varieties of Pisum sativum L. under salt stress
The possible involvement of activated oxygen species in the mechanism of damage by NaClstress was studied in leaves of two varieties of pea (Pisum sativum L.) cv. EC 33866 and Puget. Thelevel of lipid peroxidation, enzyme activity of superoxide dismutase (SOD, EC 1.15.1.1), ascorbateperoxidase (APX, EC 1.11.1.11), glutathione reductase (GR, EC 1.6.4.2), dihydroascorbate reductase(DHAR, 1.8.5.1)...
متن کاملProline accumulation and metabolism-related genes expression profiles in Kosteletzkya virginica seedlings under salt stress
Proline accumulation is a common response to salt stress in many plants. Salt stress also increased proline concentration in roots, stems, and leaves of Kosteletzkya virginica seedling treated with 300 mM NaCl for 24 h and reached 3.75-, 4.76-, and 6.83-fold higher than controls. Further study on proline content in leaves under salt stress showed that proline content increased with increasing N...
متن کاملA study of proline metabolism in canola (Brassica napus L.) seedlings under salt stress.
Expression analysis of crop plants has improved our knowledge about the veiled underlying mechanisms for salt tolerance. In order to observe the time course effects of salinity stress on gene expression for enzymes regulating proline metabolism, we comparatively analyzed the expression of specific genes for proline metabolism in root and shoot tissues of salt-tolerant (cv. Dunkled) and salt-sen...
متن کاملSalicylic acid alters antioxidant and phenolics metabolism in Catharanthus roseus grown under salinity stress.
BACKGROUND Salicylic acid (SA) acts as a potential non-enzymatic antioxidant and a plant growth regulator, which plays a major role in regulating various plant physiological mechanisms. The effects of salicylic acid (SA; 0.05 mM) on physiological parameters, antioxidative capacity and phenolic metabolism, lignin, alkaloid accumulation in salt stressed Catharanthus roseus were investigated. MA...
متن کاملEFFECT OF SALINITY STRESS ON SEED GERMINATION AND ANTIOXIDATIVE DEFENSE SYSTEM OF Catharanthus roseus
In this study the effect of responses of Catharanthus roseus to NaCl stress has been explored. Periwinkle plants were exposed to different concentrations of salt and the effect of treatment on germination, growth parameter and antioxidative defense system investigated. Seeds were presoaked in solutions with different salinity after sterilization. Experimental samples irrigated once every two da...
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ژورنال
عنوان ژورنال: South African Journal of Botany
سال: 2007
ISSN: 0254-6299
DOI: 10.1016/j.sajb.2006.11.001