Effects of Perchlorate Stress on Growth and Physiological Characteristics of Rice (Oryza sativa L.) Seedlings

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	Effects of Perchlorate Stress on Growth and Physiological Characteristics of Rice (Oryza sativa L.) Seedlings
	Xie, Yinfeng 1; Tao, Gongsheng 2; Chen, Qian 3; Tian, Xueyao 1
刊名	WATER AIR AND SOIL POLLUTION
	2014-08-01
卷号	225 期号:8 页码:2077
关键词	Perchlorate stress Growth Physiology Olyza saliva L
ISSN号	0049-6979
通讯作者	Xie, YF (reprint author), Nanjing Forestry Univ, Coll Forest Resources & Environm, Nanjing 210037, Jiangsu, Peoples R China. ; xxyyff@njfu.edu.cn
产权排序	第三
英文摘要	Effects of perchlorate stress on the growth and physiological characteristics of rice (Oryza swim L.) were studied in controlled water culture experiments. Perchlorate stress resulted in varied patterns of biomass allocation to O. saliva organs (roots, stems, and leaves). When stressed with higher perchlorate concentrations, the proportion of root biomass was higher, stem biomass was invariant, while leaf biomass was lower. Coefficients of variation in biomass of different organs followed the order leaf>stem>root, indicating that leaf growth has a higher sensitivity to perchlorate. Compared to the control, the chlorophyll and protein content of leaves and root vigor were lower, whereas malondialdehyde (MDA) content and catalase (CAT) activity were higher and related to perchlorate concentration and duration of stress. Superoxide dismutase (SOD) activity was initially high and then decreased markedly during the experiment, while peroxidase (PDX) activity in perchlorate-treated rice was always higher than the PDX activity of the control. PDX was the most sensitive antioxidant enzyme to perchlorate stress. Correlation analysis showed a positive correlation between SOD activity and the fresh weight of the whole plant, and negative conelation with MDA content. The results suggest that perchlorate could induce oxidative stress and oxidative damage may be the main cause of physiological damage and growth inhibition in rice plants under perchlorate stress.
学科主题	Environmental Sciences ; Meteorology & Atmospheric Sciences ; Water Resources
类目[WOS]	Environmental Sciences ; Meteorology & Atmospheric Sciences ; Water Resources
研究领域[WOS]	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences ; Water Resources
关键词[WOS]	TERRESTRIAL PLANTS ; DRINKING-WATER ; ACCUMULATION ; LETTUCE ; VEGETATION ; REDUCTION ; SOIL
收录类别	SCI
资助信息	Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD); National Basic Research Program of China [2006CB403301]; Scientific Innovation Fund of Nanjing Forestry University [CX2011-23]
语种	英语
WOS记录号	WOS:000340527400040
公开日期	2014-10-11
内容类型	期刊论文
源URL	[http://ir.kib.ac.cn/handle/151853/18322]
专题	昆明植物研究所_中国西南野生生物种质资源库
作者单位	1.Nanjing Forestry Univ, Coll Forest Resources & Environm, Nanjing 210037, Jiangsu, Peoples R China 2.Tongcheng Teachers Coll, Dept Sci & Technol, Tongcheng 231400, Peoples R China 3.Chinese Acad Sci, Kunming Inst Bot, Kunming 650201, Peoples R China
推荐引用方式 GB/T 7714	Xie, Yinfeng,Tao, Gongsheng,Chen, Qian,et al. Effects of Perchlorate Stress on Growth and Physiological Characteristics of Rice (Oryza sativa L.) Seedlings[J]. WATER AIR AND SOIL POLLUTION,2014,225(8):2077.
APA	Xie, Yinfeng,Tao, Gongsheng,Chen, Qian,&Tian, Xueyao.(2014).Effects of Perchlorate Stress on Growth and Physiological Characteristics of Rice (Oryza sativa L.) Seedlings.WATER AIR AND SOIL POLLUTION,225(8),2077.
MLA	Xie, Yinfeng,et al."Effects of Perchlorate Stress on Growth and Physiological Characteristics of Rice (Oryza sativa L.) Seedlings".WATER AIR AND SOIL POLLUTION 225.8(2014):2077.