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Analysis of Antioxidant Enzyme Activity During Germination of Alfalfa Under Salt and Drought Stresses by Wen-Bin Wang; Yun-Hee Kim; Haeng-Soon Lee; Ki-Yong Kim; Xi-Ping Deng; Sang-Soo Kwak is a Agricultural and Biological Sciences article available to read on EtoBox.
What is Analysis of Antioxidant Enzyme Activity During Germination of Alfalfa Under Salt and Drought Stresses about?
To understand the adaptability of alfalfa (Medicago sativa L.) to environmental stresses, we analyzed the activity of several antioxidant enzymes, including superoxide dismutase (SOD), peroxidase (POD), ascorbate peroxidase (APX), and catalase (CAT), in alfalfa shoots and roots subjected to salt and drought stresses during germination. The germination rate of six alfalfa cultivars was comparatively studied under 200 mM NaCl or 35% PEG treatment. Alfalfa Xinmu No. 1 and Northstar varieties were selected as stress-tolerant and -sensitive cultivars, respectively, and were used for further characterization. After NaCl or PEG treatment, Xinmu No. 1 showed enhanced seedling growth, compared with Northstar. Xinmu No. 1 also exhibited low levels of hydrogen peroxide (H 2 O 2 ) production and lipid peroxidation, compared with Northstar. In addition, Xinmu No. 1 showed higher enzymatic activity of SOD, APX, CAT, and POD in its shoots and roots than Northstar. These results seem to indicate that Xinmu No. 1 cultivar's tolerance to salt or drought stresses during germination is associated with enhanced activity of antioxidant enzymes. This study highlights the importance of antioxidant enzymes
Who reads Analysis of Antioxidant Enzyme Activity During Germination of Alfalfa Under Salt and Drought Stresses?
It is typically read by researchers, students, and practitioners in Agricultural and Biological Sciences.
- Author
- Wen-Bin Wang; Yun-Hee Kim; Haeng-Soon Lee; Ki-Yong Kim; Xi-Ping Deng; Sang-Soo Kwak
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0981-9428)
- Published
- 2009
- Language
- EN
- Field
- Agricultural and Biological Sciences (Life Sciences)