PATHWAYS OF ROOT UPTAKE AND MEMBRANE TRANSPORT OF CD2+ IN THE ZINC/CADMIUM HYPERACCUMULATING PLANT SEDUM PLUMBIZINCICOLA

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

	PATHWAYS OF ROOT UPTAKE AND MEMBRANE TRANSPORT OF CD2+ IN THE ZINC/CADMIUM HYPERACCUMULATING PLANT SEDUM PLUMBIZINCICOLA
	Li, Lian-Zhen1 ; Tu, Chen1 ; Wu, Long-Hua 2; Peijnenburg, Willie J. G. M.3,4; Ebbs, Stephen 5; Luo, Yong-Ming1
刊名	ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
	2017-04-01
卷号	36 期号:4 页码:1038-1046
关键词	Cadmium Hyperaccumulator Sedum plumbizincicola Ion-selective electrode technique
ISSN号	0730-7268
通讯作者	Luo, YM (reprint author), Chinese Acad Sci, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai, Peoples R China. ymluo@yic.ac.cn
产权排序	[Li, Lian-Zhen; Tu, Chen; Luo, Yong-Ming] Chinese Acad Sci, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai, Peoples R China; [Wu, Long-Hua] Chinese Acad Sci, Key Lab Soil Environm & Pollut Remediat, Inst Soil Sci, Nanjing, Jiangsu, Peoples R China; [Peijnenburg, Willie J. G. M.] Natl Inst Publ Hlth & Environm, Ctr Safety Prod & Subst, Bilthoven, Netherlands; [Peijnenburg, Willie J. G. M.] Leiden Univ, Inst Environm Sci CML, Leiden, Netherlands; [Ebbs, Stephen] Southern Illinois Univ Carbondale, Dept Plant Biol, Carbondale, IL USA
英文摘要	Uptake and membrane transport of cadmium (Cd) in roots of the hyperaccumulator Sedum plumbizincicola X.H. Guo et S.B. Zhou ex L.H. Wu was characterized by assessing the impact of various inhibitors and ion channel blockers on Cd accumulation as well as the real-time net Cd2+ flux at the roots with application of the scanning ion-selective electrode technique. The uncouplers 2,4-dinitrophenol and P-type adenosine triphosphatase inhibitor Na3VO4 significantly limited Cd2+ uptake and transport kinetics in the root of S. plumbizincicola. These findings indicate that Cd is actively taken up into the roots. The Cd content in plant was significantly decreased with pretreatments of the Ca2+ channel blocker La3+ or Gd3+ and the K+ channel blocker tetraethylammonium, as well as in the presence of higher concentration of Ca2+ and K+. These findings indicated that uptake of Cd2+ into the root of S. plumbizincicola proceeds through ion channels that are permeable to both Ca2+ and K+ as confirmed by the direct evidence of real-time net Cd2+ fluxes at the root surface in the treatments with ion channel inhibitors, as well as in the presence of elevated concentrations of Ca2+ and K+. In addition, the results suggested a role for phytochelatin and protein synthesis in mediating Cd2+ uptake by S. plumbizincicola. These findings increase the understanding of Cd2+ uptake and membrane transport pathways in roots of the Zn/Cd hyperaccumulator S. plumbizincicola. (C) 2016 SETAC
学科主题	Environmental Sciences & Ecology ; Toxicology
研究领域[WOS]	Environmental Sciences & Ecology ; Toxicology
关键词[WOS]	ION-SELECTIVE MICROELECTRODES ; THLASPI-CAERULESCENS ; CALCIUM-CHANNELS ; CADMIUM UPTAKE ; ARABIDOPSIS-HALLERI ; MEASUREMENTS REVEAL ; ELONGATION REGION ; WHEAT ROOTS ; CA2+ INFLUX ; CORN ROOTS
收录类别	SCI
原文出处	10.1002/etc.3625
语种	英语
WOS记录号	WOS:000398190000027
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/22061]
专题	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 Coastal Zone Environm Proc & Ecol Remedia, Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai, Peoples R China 2.Chinese Acad Sci, Key Lab Soil Environm & Pollut Remediat, Inst Soil Sci, Nanjing, Jiangsu, Peoples R China 3.Natl Inst Publ Hlth & Environm, Ctr Safety Prod & Subst, Bilthoven, Netherlands 4.Leiden Univ, Inst Environm Sci CML, Leiden, Netherlands 5.Southern Illinois Univ Carbondale, Dept Plant Biol, Carbondale, IL USA
推荐引用方式 GB/T 7714	Li, Lian-Zhen,Tu, Chen,Wu, Long-Hua,et al. PATHWAYS OF ROOT UPTAKE AND MEMBRANE TRANSPORT OF CD2+ IN THE ZINC/CADMIUM HYPERACCUMULATING PLANT SEDUM PLUMBIZINCICOLA[J]. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY,2017,36(4):1038-1046.
APA	Li, Lian-Zhen,Tu, Chen,Wu, Long-Hua,Peijnenburg, Willie J. G. M.,Ebbs, Stephen,&Luo, Yong-Ming.(2017).PATHWAYS OF ROOT UPTAKE AND MEMBRANE TRANSPORT OF CD2+ IN THE ZINC/CADMIUM HYPERACCUMULATING PLANT SEDUM PLUMBIZINCICOLA.ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY,36(4),1038-1046.
MLA	Li, Lian-Zhen,et al."PATHWAYS OF ROOT UPTAKE AND MEMBRANE TRANSPORT OF CD2+ IN THE ZINC/CADMIUM HYPERACCUMULATING PLANT SEDUM PLUMBIZINCICOLA".ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 36.4(2017):1038-1046.