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Title: Synchrotron micro-scale study of trace metal transport and distribution in Spartina alterniflora root system in Yangtze River intertidal zone

Journal Article · · Environmental Science and Pollution Research International
 [1];  [2];  [3];  [3];  [3];  [1];  [2];  [2];  [2];  [2];  [2]
  1. Montclair State Univ., Montclair, NJ (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. East China Normal Univ. (ECNU), Shanghai (China)
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This study is focused on micro-scale measurement of metal (Ca, Cl, Fe, K, Mn, Cu, Pb, and Zn) distributions in Spartina alterniflora root system. The root samples were collected in the Yangtze River intertidal zone in July 2013. Synchrotron X-ray fluorescence (XRF), computed microtomography (CMT), and X-ray absorption near-edge structure (XANES) techniques, which provide micro-meter scale analytical resolution, were applied to this study. Although it was found that the metals of interest were distributed in both epidermis and vascular tissue with the varying concentrations, the results showed that Fe plaque was mainly distributed in the root epidermis. Other metals (e.g., Cu, Mn, Pb, and Zn) were correlated with Fe in the epidermis possibly due to scavenge by Fe plaque. Relatively high metal concentrations were observed in the root hair tip. As a result, this micro-scale investigation provides insights of understanding the metal uptake and spatial distribution as well as the function of Fe plaque governing metal transport in the root system.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC00112704
OSTI ID:
1228831
Alternate ID(s):
OSTI ID: 1247976
Report Number(s):
BNL-108455-2015-JA; BNL-112049-2016-JA; R&D Project: LS001
Journal Information:
Environmental Science and Pollution Research International, Vol. 22, Issue 23; ISSN 0944-1344
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

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Cited By (2)

Phytoremediation potential and control of Phragmites australis as a green phytomass: an overview journal January 2019
Nanoscale measurement of trace element distributions in Spartina alterniflora root tissue during dormancy journal January 2017

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Related Subjects

36 MATERIALS SCIENCE
Spartina alterniflora
trace metals
synchrotron radiation technique
Rhizosphere root system
transport
Yangtze River estuary
54 ENVIRONMENTAL SCIENCES