Synchrotron X-ray microfluorescence measurement of metal distributions in Phragmites australis root system in the Yangtze River intertidal zone

Huan Feng, Weiguo Zhang, Yu Qian, Wenliang Liu, Lizhong Yu, Shinjae Yoo, Jun Wang, Jia Jun Wang, Christopher Eng, Chang Jun Liu, Ryan Tappero

Research output: Contribution to journalArticleResearchpeer-review

1 Citation (Scopus)

Abstract

This study investigates the distributions of Br, Ca, Cl, Cr, Cu, K, Fe, Mn, Pb, Ti, V and Zn in Phragmites australis root system and the function of Fe nanoparticles in scavenging metals in the root epidermis using synchrotron X-ray microfluorescence, synchrotron transmission X-ray microscope measurement and synchrotron X-ray absorption near-edge structure techniques. The purpose of this study is to understand the mobility of metals in wetland plant root systems after their uptake from rhizosphere soils. Phragmites australis samples were collected in the Yangtze River intertidal zone in July 2013. The results indicate that Fe nanoparticles are present in the root epidermis and that other metals correlate significantly with Fe, suggesting that Fe nanoparticles play an important role in metal scavenging in the epidermis.Concentrations and distributions of Br, Ca, Cl, Cr, Cu, K, Fe, Mn, Pb, Ti, V and Zn in Phragmites australis root system are investigated with micrometer-scale resolution in order to understand the chemical mechanisms of metal uptake by plants and the transport pathways in the plants.

Original languageEnglish
Pages (from-to)937-946
Number of pages10
JournalJournal of Synchrotron Radiation
Volume23
Issue number4
DOIs
StatePublished - 1 Jul 2016

Fingerprint

Synchrotrons
rivers
synchrotrons
epidermis
Rivers
X rays
Metals
metals
Scavenging
scavenging
Nanoparticles
x rays
nanoparticles
plant roots
X ray microscopes
wetlands
X ray absorption
Wetlands
micrometers
soils

Keywords

  • Fe nanoparticles
  • Phragmites australis
  • Yangtze River intertidal zone
  • metal uptake

Cite this

Feng, Huan ; Zhang, Weiguo ; Qian, Yu ; Liu, Wenliang ; Yu, Lizhong ; Yoo, Shinjae ; Wang, Jun ; Wang, Jia Jun ; Eng, Christopher ; Liu, Chang Jun ; Tappero, Ryan. / Synchrotron X-ray microfluorescence measurement of metal distributions in Phragmites australis root system in the Yangtze River intertidal zone. In: Journal of Synchrotron Radiation. 2016 ; Vol. 23, No. 4. pp. 937-946.
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Synchrotron X-ray microfluorescence measurement of metal distributions in Phragmites australis root system in the Yangtze River intertidal zone. / Feng, Huan; Zhang, Weiguo; Qian, Yu; Liu, Wenliang; Yu, Lizhong; Yoo, Shinjae; Wang, Jun; Wang, Jia Jun; Eng, Christopher; Liu, Chang Jun; Tappero, Ryan.

In: Journal of Synchrotron Radiation, Vol. 23, No. 4, 01.07.2016, p. 937-946.

Research output: Contribution to journalArticleResearchpeer-review

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