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题名:
Distribution and Speciation of Cu in the Root Border Cells of Rice by STXM Combined with NEXAFS
作者: Peng, C; Wang, Y; Sun, LJ; Xu, C; Zhang, LJ; Shi, JY
刊名: BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
出版日期: 2016
卷号: 96, 期号:3, 页码:408—414
关键词: X-RAY MICROSCOPY ; ALUMINUM TOXICITY ; RESISTANCE ; COPPER ; PLANTS ; RHIZOSPHERE ; NANOPARTICLES ; LOCALIZATION ; MECHANISMS ; INFECTION
DOI: 10.1007/s00128-015-1716-0
通讯作者: Shi, JY (reprint author), Zhejiang Univ, Coll Environm & Resource Sci, Dept Environm Engn, Hangzhou 310058, Zhejiang, Peoples R China.
文章类型: 期刊文献
英文摘要: Root border cells (RBCs) serve plants in their initial line of defense against stress from the presence of heavy metals in the soil. In this research, light microscopy and synchrotron-based scanning transmission X-ray microscopy (STXM) combined with near edge X-ray absorption fine structure spectroscopy (NEXAFS) with a nanoscale spatial resolution were used to investigate the effects of copper (Cu) upon the RBCs, as well as its distribution and speciation within the RBCs of rice (Oryza sativa L.) under aeroponic culture. The results indicated that with increasing exposure time and concentration, the attached RBCs were surrounded by a thick mucilage layer which changed in form from an ellipse into a strip in response to Cu ion stress. Copper was present as Cu(II), which accumulated not only in the cell wall but also in the cytoplasm. To our knowledge, this is the first time that STXM has been used in combination with NEXAFS to provide new insight into the distribution and speciation of metal elements in isolated plant cells.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000371244600022
ISSN号: 0007-4861
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/25688
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Peng, C,Wang, Y,Sun, LJ,et al. Distribution and Speciation of Cu in the Root Border Cells of Rice by STXM Combined with NEXAFS[J]. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY,2016-01-01,96(3):408—414.
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文件名: Distribution and Speciation of Cu in the Root Border Cells of Rice by STXM Combined with NEXAFS.pdf
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