Tissue Fractions of Cadmium in Two Hyperaccumulating Jerusalem Artichoke Genotypes

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	Tissue Fractions of Cadmium in Two Hyperaccumulating Jerusalem Artichoke Genotypes
	Long, Xiaohua 1; Ni, Ni 1,2; Liu, Zhaopu 1; Rengel, Zed 3; Jiang, Xin 2; Shao, Hongbo 1,4
刊名	SCIENTIFIC WORLD JOURNAL
	2014
页码	421249
关键词	HEAVY-METAL ACCUMULATION SUBCELLULAR-DISTRIBUTION CONTAMINATED SOILS CHEMICAL FORM PHYTOREMEDIATION PLANTS TRANSLOCATION LOCALIZATION TOLERANCE GROWTH
ISSN号	1537-744X
通讯作者	Liu, ZP (reprint author), Nanjing Agr Univ, Coll Resources & Environm Sci, Jiangsu Prov Key Lab Marine Biol, Nanjing 210095, Jiangsu, Peoples R China. zhaopuliu@163.com ; shaohongbochu@126.com
产权排序	[Long, Xiaohua; Ni, Ni; Liu, Zhaopu; Shao, Hongbo] Nanjing Agr Univ, Coll Resources & Environm Sci, Jiangsu Prov Key Lab Marine Biol, Nanjing 210095, Jiangsu, Peoples R China; [Ni, Ni; Jiang, Xin] Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Jiangsu, Peoples R China; [Rengel, Zed] Univ Western Australia, Sch Earth & Environm, Crawley, WA 6009, Australia; [Shao, Hongbo] Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Biol & Bioresources Utilizat, Yantai 264003, Peoples R China
中文摘要	In order to investigate the mechanisms in two Jerusalem artichoke (Helianthus tuberosus L.) genotypes that hyperaccumulate Cd, a sand-culture experiment was carried out to characterize fractionation of Cd in tissue of Cd-hyperaccumulating genotypes NY2 and NY5. The sequential extractants were: 80% v/v ethanol (FE), deionized water (F-W), 1M NaCl (F-NaCl), 2% v/v acetic acid (F-Acet), and 0.6M HCl (F-HCl). After 20 days of treatments, NY5 had greater plant biomass and greater Cd accumulation in tissues than NY2. In both genotypes the FNaCl fraction was the highest in roots and stems, whereas the FAcet and FHCl fractions were the highest in leaves. With an increase in Cd concentration in the culture solution, the content of every Cd fraction also increased. The FW and FNaCl ratios in roots were lower in NY5 than in NY2, while the amount of other Cd forms was higher. It implied that, in high accumulator, namely, NY5, the complex of insoluble phosphate tends to be shaped more easily which was much better for Cd accumulation. Besides, translocation from plasma to vacuole after combination with protein may be one of the main mechanisms in Cd-accumulator Jerusalem artichoke genotypes.
英文摘要	In order to investigate the mechanisms in two Jerusalem artichoke (Helianthus tuberosus L.) genotypes that hyperaccumulate Cd, a sand-culture experiment was carried out to characterize fractionation of Cd in tissue of Cd-hyperaccumulating genotypes NY2 and NY5. The sequential extractants were: 80% v/v ethanol (FE), deionized water (F-W), 1M NaCl (F-NaCl), 2% v/v acetic acid (F-Acet), and 0.6M HCl (F-HCl). After 20 days of treatments, NY5 had greater plant biomass and greater Cd accumulation in tissues than NY2. In both genotypes the FNaCl fraction was the highest in roots and stems, whereas the FAcet and FHCl fractions were the highest in leaves. With an increase in Cd concentration in the culture solution, the content of every Cd fraction also increased. The FW and FNaCl ratios in roots were lower in NY5 than in NY2, while the amount of other Cd forms was higher. It implied that, in high accumulator, namely, NY5, the complex of insoluble phosphate tends to be shaped more easily which was much better for Cd accumulation. Besides, translocation from plasma to vacuole after combination with protein may be one of the main mechanisms in Cd-accumulator Jerusalem artichoke genotypes.
学科主题	Multidisciplinary Sciences
研究领域[WOS]	Science & Technology - Other Topics
关键词[WOS]	HEAVY-METAL ACCUMULATION ; SUBCELLULAR-DISTRIBUTION ; CONTAMINATED SOILS ; CHEMICAL FORM ; PHYTOREMEDIATION ; PLANTS ; TRANSLOCATION ; LOCALIZATION ; TOLERANCE ; GROWTH
收录类别	SCI
语种	英语
WOS记录号	WOS:000335052400001
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/8581]
专题	烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室
作者单位	1.Nanjing Agr Univ, Coll Resources & Environm Sci, Jiangsu Prov Key Lab Marine Biol, Nanjing 210095, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Jiangsu, Peoples R China 3.Univ Western Australia, Sch Earth & Environm, Crawley, WA 6009, Australia 4.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Biol & Bioresources Utilizat, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Long, Xiaohua,Ni, Ni,Liu, Zhaopu,et al. Tissue Fractions of Cadmium in Two Hyperaccumulating Jerusalem Artichoke Genotypes[J]. SCIENTIFIC WORLD JOURNAL,2014:421249.
APA	Long, Xiaohua,Ni, Ni,Liu, Zhaopu,Rengel, Zed,Jiang, Xin,&Shao, Hongbo.(2014).Tissue Fractions of Cadmium in Two Hyperaccumulating Jerusalem Artichoke Genotypes.SCIENTIFIC WORLD JOURNAL,421249.
MLA	Long, Xiaohua,et al."Tissue Fractions of Cadmium in Two Hyperaccumulating Jerusalem Artichoke Genotypes".SCIENTIFIC WORLD JOURNAL (2014):421249.