Temperature affects cadmium-induced phytotoxicity involved in subcellular cadmium distribution and oxidative stress in wheat roots

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 污染过程与控制实验室

	Temperature affects cadmium-induced phytotoxicity involved in subcellular cadmium distribution and oxidative stress in wheat roots
	Li, Dandan 1,2; Zhou, Dongmei 1; Wang, Peng 1,2; Li, Lianzhen3
刊名	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
	2011-10-01
卷号	74 期号:7 页码:2029-2035
关键词	Temperature Cadmium Subcellular Distribution Antioxidant Enzymatic Activities Wheat
ISSN号	0147-6513
通讯作者	Zhou, DM (reprint author), Chinese Acad Sci, Key Lab Soil Environm & Pollut Remediat, Inst Soil Sci, Nanjing 210008, Peoples R China
产权排序	[Li, Dandan; Zhou, Dongmei; Wang, Peng] Chinese Acad Sci, Key Lab Soil Environm & Pollut Remediat, Inst Soil Sci, Nanjing 210008, Peoples R China; [Li, Dandan; Wang, Peng] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China; [Li, Lianzhen] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
文献子类	Article
英文摘要	In this study, the effect of temperature on Cd toxicity to wheat roots was evaluated in terms of the relative root length and subcellular distribution of Cd as well as the antioxidant enzymatic activities after exposed to Cd for 72 h under different temperatures. The result showed that the EC(50)-values for the relative root length were 9.24, 4.91 and 3.62 mu M Cd at 18, 25 and 30 degrees C, respectively. The Cd concentrations in the cellular metal-sensitive fraction or the potentially toxic fraction (cell debris fraction-Cd) were well correlated with the toxicity of Cd. Interestingly, the superoxide dismutase (SOD) and catalase (CAT) in wheat roots without Cd exposure were increased at 18 degrees C compared to those at 25 degrees C, while decreased at 30 degrees C. The CAT activities decreased with increasing Cd level at 25 and 18 degrees C but did not show the same change at 30 degrees C, which could be explained by the subcellular distribution of Cd. (C) 2011 Elsevier Inc. All rights reserved.; In this study, the effect of temperature on Cd toxicity to wheat roots was evaluated in terms of the relative root length and subcellular distribution of Cd as well as the antioxidant enzymatic activities after exposed to Cd for 72 h under different temperatures. The result showed that the EC(50)-values for the relative root length were 9.24, 4.91 and 3.62 mu M Cd at 18, 25 and 30 degrees C, respectively. The Cd concentrations in the cellular metal-sensitive fraction or the potentially toxic fraction (cell debris fraction-Cd) were well correlated with the toxicity of Cd. Interestingly, the superoxide dismutase (SOD) and catalase (CAT) in wheat roots without Cd exposure were increased at 18 degrees C compared to those at 25 degrees C, while decreased at 30 degrees C. The CAT activities decreased with increasing Cd level at 25 and 18 degrees C but did not show the same change at 30 degrees C, which could be explained by the subcellular distribution of Cd. (C) 2011 Elsevier Inc. All rights reserved.
学科主题	Environmental Sciences & Ecology ; Toxicology
URL标识	查看原文
WOS关键词	MOLECULAR MECHANISMS ; AQUATIC ORGANISMS ; MARINE DIATOM ; HEAVY-METALS ; TOXICITY ; PLANTS ; SENSITIVITY ; SEEDLINGS ; SALINITY ; ZINC
WOS研究方向	Environmental Sciences & Ecology ; Toxicology
语种	英语
WOS记录号	WOS:000295438000028
资助机构	Ministry of Environmental Protection of Peoples' Republic of China[201006032-03]; National Natural Science Foundation[21077111]; Natural Science Foundation of Jiangsu Province[BK2009339]
公开日期	2012-03-06
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/5393]
专题	烟台海岸带研究所_污染过程与控制实验室烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.Chinese Acad Sci, Key Lab Soil Environm & Pollut Remediat, Inst Soil Sci, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Li, Dandan,Zhou, Dongmei,Wang, Peng,et al. Temperature affects cadmium-induced phytotoxicity involved in subcellular cadmium distribution and oxidative stress in wheat roots[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2011,74(7):2029-2035.
APA	Li, Dandan,Zhou, Dongmei,Wang, Peng,&Li, Lianzhen.(2011).Temperature affects cadmium-induced phytotoxicity involved in subcellular cadmium distribution and oxidative stress in wheat roots.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,74(7),2029-2035.
MLA	Li, Dandan,et al."Temperature affects cadmium-induced phytotoxicity involved in subcellular cadmium distribution and oxidative stress in wheat roots".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 74.7(2011):2029-2035.