Stem and leaf sequestration of zinc at the cellular level in the hyperaccumulator Sedum alfredii
文献类型：期刊论文
| ; | |
| 作者 | Tian, SK; Lu, LL; Yang, XE; Labavitch, JM; Huang, YY; Brown, P; Huang YY(黄宇营) |
| 刊名 | NEW PHYTOLOGIST
 ; NEW PHYTOLOGIST
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| 出版日期 | 2009 ; 2009 |
| 卷号 | 182期号:1页码:#REF! |
| 关键词 | cellular distribution hyperaccumulation Sedum alfredii synchrotron radiation X-ray fluorescence (SRXRF) zinc Zinpyr-1 cellular distribution hyperaccumulation Sedum alfredii synchrotron radiation X-ray fluorescence (SRXRF) zinc Zinpyr-1 |
| DOI | 10.1111/j.1469-8137.2008.02740.x |
| 通讯作者 | Yang, XE (reprint author), Zhejiang Univ, MOE Key Lab Polluted Environm Remediat & Ecol Hlt, Huajiachi Campus, Hangzhou 310029, Zhejiang, Peoples R China. ; Yang, XE (reprint author), Zhejiang Univ, MOE Key Lab Polluted Environm Remediat & Ecol Hlt, Huajiachi Campus, Hangzhou 310029, Zhejiang, Peoples R China. |
| 文献子类 | Article |
| 英文摘要 | Sedum alfredii is a fast-growing, high-biomass zinc (Zn) hyperaccumulator native to China. Here, the characteristics of in vivo Zn distribution in stems and leaves of the hyperaccumulating (HE) and nonhyperaccumulating ecotypes (NHE) of S. alfredii were investigated by synchrotron radiation X-ray fluorescence (SRXRF) analysis, together with a Zn probe. Preferential Zn accumulation in leaf and stem epidermis was observed in both ecotypes, but to a much greater extent for HE. Epidermal Zn increased largely in leaves and stems of HE as exposure time was prolonged, while Zn saturation occurred relatively early in HE leaf mesophyll cells and stem vascular bundles. A second peak of Zn enrichment in stem and leaf vascular systems was shown in both ecotypes. However, the proportion of Zn accumulated in stem vascular bundles relative to other tissues was much greater for HE than for NHE. Leaf and stem distribution patterns of phosphorus (P) and sulphur (S) in the HE were very like that for Zn, while the calcium (Ca) distribution pattern was the reverse of that for Zn. No such relationship was observed in NHE. Our study mainly suggested that epidermal layers serve as important storage sites for accumulated Zn in the S. alfredii HE. New Phytologist (2009) 182: 116-126doi: 10.1111/j.1469-8137.2008.02740.x.; Sedum alfredii is a fast-growing, high-biomass zinc (Zn) hyperaccumulator native to China. Here, the characteristics of in vivo Zn distribution in stems and leaves of the hyperaccumulating (HE) and nonhyperaccumulating ecotypes (NHE) of S. alfredii were investigated by synchrotron radiation X-ray fluorescence (SRXRF) analysis, together with a Zn probe. Preferential Zn accumulation in leaf and stem epidermis was observed in both ecotypes, but to a much greater extent for HE. Epidermal Zn increased largely in leaves and stems of HE as exposure time was prolonged, while Zn saturation occurred relatively early in HE leaf mesophyll cells and stem vascular bundles. A second peak of Zn enrichment in stem and leaf vascular systems was shown in both ecotypes. However, the proportion of Zn accumulated in stem vascular bundles relative to other tissues was much greater for HE than for NHE. Leaf and stem distribution patterns of phosphorus (P) and sulphur (S) in the HE were very like that for Zn, while the calcium (Ca) distribution pattern was the reverse of that for Zn. No such relationship was observed in NHE. Our study mainly suggested that epidermal layers serve as important storage sites for accumulated Zn in the S. alfredii HE. New Phytologist (2009) 182: 116-126doi: 10.1111/j.1469-8137.2008.02740.x. |
| 学科主题 | Plant Sciences ; Plant Sciences |
| 类目[WOS] | Plant Sciences |
| 收录类别 | SCI |
| WOS记录号 | WOS:000263910700013 ; WOS:000263910700013 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/226260]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 推荐引用方式 GB/T 7714 | Tian, SK,Lu, LL,Yang, XE,et al. Stem and leaf sequestration of zinc at the cellular level in the hyperaccumulator Sedum alfredii, Stem and leaf sequestration of zinc at the cellular level in the hyperaccumulator Sedum alfredii[J]. NEW PHYTOLOGIST, NEW PHYTOLOGIST,2009, 2009,182, 182(1):#REF!, #REF!. |
| APA | Tian, SK.,Lu, LL.,Yang, XE.,Labavitch, JM.,Huang, YY.,...&黄宇营.(2009).Stem and leaf sequestration of zinc at the cellular level in the hyperaccumulator Sedum alfredii.NEW PHYTOLOGIST,182(1),#REF!. |
| MLA | Tian, SK,et al."Stem and leaf sequestration of zinc at the cellular level in the hyperaccumulator Sedum alfredii".NEW PHYTOLOGIST 182.1(2009):#REF!. |
入库方式： OAI收割
来源：高能物理研究所
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