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Changes in the Seed Viability and DPPH-radical Scavenging of Helianthus annuus. Seeds According to Low Dose ${\gamma}$-ray irradiation  

Kim, Sun-Il (Department of Chemical and Biochemical Engineering, Chosun University)
Lee, Hyun-Hwa (Department of Biology, Chosun University)
Kim, Chun-Sung (Department of Oral Physiology, Chosun University)
Seo, Myung-Deok (Department of Internal Medicine, Cheju National University Hospital)
Lee, Sook-Young (Research Center for Proteineous Materials, Chosun University)
Publication Information
Applied Biological Chemistry / v.51, no.2, 2008 , pp. 148-152 More about this Journal
Abstract
This study was to elucidate the effect of low dose gamma (${\gamma}$)-ray irradiation on the germination, seedling growth and antioxidant activity in sunflower seeds. The seed germination was stimulated in the range of 2.7${\sim}$8.0% by low dose ${\gamma}$-ray irradiation compared with that of the control; however, the germination of seeds stored for 4 months after irradiated was decreased at all low dose ${\gamma}$-ray irradiation groups. Especially, the germination rate of 32 Gy-irradiated seed group was much lower than that of the other groups and 8 Gy was the optimal radiation dose for germination at room temperature. Though there was variation with storage time and temperature, seedling growth stored at 10$^{\circ}C$ for 4 months after irradiated was promoted at the 1 Gy ${\gamma}$-ray irradiation group compared to seed stored at 25$^{\circ}C$. For the antioxidant activity of ${\gamma}$-ray irradiated seeds extract, 4 Gy and 32 Gy groups were significantly increased by 68.83% and 95.44%, respectively, compared to control at the concentration of 100 ${\mu}g$/ml.
Keywords
Helianthus annus${\gamma}$-ray irradiation; seed viability; antioxidant; DPPH radical;
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Times Cited By Web Of Science : 0  (Related Records In Web of Science)
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