DC Field | Value | Language |
---|---|---|
dc.contributor.author | Bae Geun Hwang | - |
dc.contributor.author | Sang Joon Lee | - |
dc.contributor.author | Kyehwan Gil | - |
dc.date.accessioned | 2017-07-31T15:42:51Z | - |
dc.date.available | 2017-07-31T15:42:51Z | - |
dc.date.created | 2017-02-17 | - |
dc.date.issued | 2016-12 | - |
dc.identifier.issn | 0374-4884 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/38232 | - |
dc.description.abstract | The uptake of heavy metals by plants has been receiving much attention for crop contamination and phytoremediation. We employed synchrotron X-ray fluorescence (XRF) spectroscopy for an in-vivo analysis of heavy-metal uptake through a strand of maize root. A focused X-ray beam of 2.5 x 2.5 mu m(2) in physical dimensions was scanned along horizontal lines of the maize root at intervals of 3 mu m at the 4B X-ray micro-diffraction beamline of the Pohang Accelerator Laboratory (PAL). Time-resolved mapping of the fluorescence intensities from multiple metallic elements in the root tissues provided information about the radial distributions of heavy-metal elements and their temporal variations. The concentrated core stream of heavy-metal elements spread radially up to roughly 500 mu m, corresponding to 40 % of the root diameter. The absorption characteristics of three heavy metals, Cr, Mn and Ni, and their physiological features were analyzed. The absolute concentrations and the contents of the heavy-metal elements in the tested maize roots were quantitatively evaluated by using the calibration curve obtained from reference samples with preset concentrations. The uptake quantities of the tested heavy-metal elements are noticeably different, although their molecular weights are similar. This study should be helpful for understanding plant physiology related with heavy-metal uptake. | - |
dc.language | English | - |
dc.publisher | KOREAN PHYSICAL SOC | - |
dc.relation.isPartOf | JOURNAL OF THE KOREAN PHYSICAL SOCIETY | - |
dc.subject | XRF spectroscopy | - |
dc.subject | Heavy metal | - |
dc.subject | Phytoremediation | - |
dc.title | In-vivo analysis of uptake process of heavy metals through maize roots using synchrotron X-ray fluorescence spectroscopy | - |
dc.type | Article | - |
dc.identifier.doi | 10.3938/jkps.69.1824 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.69, no.12, pp.1824 - 1829 | - |
dc.identifier.wosid | 000392143900016 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.endPage | 1829 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 1824 | - |
dc.citation.title | JOURNAL OF THE KOREAN PHYSICAL SOCIETY | - |
dc.citation.volume | 69 | - |
dc.contributor.affiliatedAuthor | Sang Joon Lee | - |
dc.identifier.scopusid | 2-s2.0-85007524031 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 1 | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | ARSENIC DISTRIBUTION | - |
dc.subject.keywordPlus | SPECTROMETRY | - |
dc.subject.keywordPlus | SPECIATION | - |
dc.subject.keywordPlus | PLANTS | - |
dc.subject.keywordAuthor | XRF spectroscopy | - |
dc.subject.keywordAuthor | Heavy metal | - |
dc.subject.keywordAuthor | Phytoremediation | - |
dc.relation.journalWebOfScienceCategory | Physics, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.relation.journalResearchArea | Physics | - |
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