Activity of antioxidant system is associated with different damages on rice seeds and seedlings after low dose heavy ion exposure

	Activity of antioxidant system is associated with different damages on rice seeds and seedlings after low dose heavy ion exposure
	Shi, Jin-Ming 3; Zhang, Meng 3; Sun, Ye-Qing 2; Li, Wen-Jian1 ; IEEE ; Sun, Ye-Qing 3
	2010
关键词	rice heavy ion radiation low dose oxidative damages antioxidant enzyme MDA
英文摘要	Dry seeds, water-soaked seeds and seedlings of rice were exposed to carbon ion radiation at doses of 0.02-20 Gy. Biological effects on survival, chromosomal aberrations and activity of protective enzymes against activated oxygen including superoxide dismutase (SOD) and catalase (CAT) as well as content of malondialdehyde (MDA) were detected. Oxidative damages were observed in both seeds and seedlings at dose as low as 0.02 Gy. Higher level of chromosomal damages and MDA were observed in seeds than in seedlings at doses lower than 2 Gy. The activity of SOD and CAT were significantly increased in seedlings at lower dose and decreased at higher dose. These results indicate that lower ability of antioxidant make non growing seeds more sensitive to heavy ion induced damages than growing seedlings at low dose.
会议录	2010 4TH INTERNATIONAL CONFERENCE ON BIOINFORMATICS AND BIOMEDICAL ENGINEERING (ICBBE 2010)
会议录出版者	IEEE
会议录出版地	345 E 47TH ST, NEW YORK, NY 10017 USA
语种	英语
资助项目	Hi-Tech Research and Development Program of China[2006AA703503C]
WOS研究方向	Engineering
WOS记录号	WOS:000397260202124
内容类型	会议论文
源URL	[http://119.78.100.186/handle/113462/57302]
专题	近代物理研究所_生物物理研究室
通讯作者	Sun, Ye-Qing
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou, Peoples R China 2.Dalian Maritime Univ, DLMU, Inst Environm Syst Biol, Dalian, Peoples R China 3.Harbin Inst Technol, Dept Life Sci & Engn, Harbin, Peoples R China
推荐引用方式 GB/T 7714	Shi, Jin-Ming,Zhang, Meng,Sun, Ye-Qing,et al. Activity of antioxidant system is associated with different damages on rice seeds and seedlings after low dose heavy ion exposure[C]. 见:.