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

This paper 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.
 [1] ;  [2] ;  [3] ;  [2] ;  [2] ;  [4] ;  [4] ;  [4] ;  [4] ;  [4] ;  [4]
  1. Montclair State Univ., Montclair, NJ (United States)
  2. East China Normal Univ. (ECNU), Shanghai (China)
  3. Montclair State Univ., Montclair, NJ (United States); Yunnan Univ., Yunnan (People's Republic of China)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Report Number(s):
Journal ID: ISSN 1600-5775; JSYRES
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Journal of Synchrotron Radiation (Online)
Additional Journal Information:
Journal Name: Journal of Synchrotron Radiation (Online); Journal Volume: 23; Journal Issue: 4; Journal ID: ISSN 1600-5775
International Union of Crystallography
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Advanced Scientific Computing Research (SC-21)
Country of Publication:
United States
97 MATHEMATICS AND COMPUTING; heavy-metal; Typha-Latifolia; iron plaque; solution culture; Fe-plaque; in-situ; contaminated soils; Aster-Tripolium; aquatic plants; Yangtze River intertidal zone; metal uptake; Phragmites australis; Fe nanoparticles
OSTI Identifier: