Seasonal differences in trace element concentrations and distribution in Spartina alterniflora root tissue

Huan Feng, Yu Qian, J. Kirk Cochran, Qingzhi Zhu, Christina Heilbrun, Li Li, Wen Hu, Hanfei Yan, Xiaojing Huang, Mingyuan Ge, Evgeny Nazareski, Yong S. Chu, Shinjae Yoo, Xuebin Zhang, Chang Jun Liu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The present study uses nanometer-scale synchrotron X-ray nanofluorescence to investigate season differences in concentrations and distributions of major (Ca, K, S and P) and trace elements (As, Cr, Cu, Fe and Zn) in the root system of Spartina alterniflora collected from Jamaica Bay, New York, in April and September 2015. The root samples were cross-sectioned at a thickness of 10 μm. Selected areas in the root epidermis and endodermis were mapped with a sampling resolution of 100 and 200 nm, varying with the mapping areas. The results indicate that trace element concentrations in the epidermis and endodermis vary among the elements measured, possibly because of their different chemical properties or their ability to act as micronutrients for the plants. Elemental concentrations (As, Ca, Cr, Cu, Fe, K, P, S and Zn) within each individual root sample and between the root samples collected during two different seasons are both significantly different (p < 0.01). Furthermore, this study indicates that the nonessential elements (As and Cr) are significantly correlated (p < 0.01) with Fe, with high concentrations in the root epidermis, while others are not, implying that Fe may be a barrier to nonessential element transport in the root system. Hierarchy cluster analysis shows two distinct groups, one including As, Cr and Fe and the other the rest of the elements measured. Factor analysis also indicates that the processes and mechanisms controlling element transport in the root system can be different between the nutrient and nonessential elements.

Original languageEnglish
Pages (from-to)359-370
Number of pages12
JournalChemosphere
Volume204
DOIs
StatePublished - 1 Aug 2018

Fingerprint

Trace Elements
Trace elements
Epidermis
trace element
Tissue
root system
Micronutrients
Cluster analysis
Factor analysis
Synchrotrons
Chemical properties
Nutrients
Jamaica
Sampling
X rays
Statistical Factor Analysis
Cluster Analysis
X-Rays
Food
factor analysis

Keywords

  • Metal uptake
  • Nanoanalysis
  • Porewater
  • Spartina alterniflora
  • Synchrotron XRF
  • Trace elements

Cite this

Feng, Huan ; Qian, Yu ; Cochran, J. Kirk ; Zhu, Qingzhi ; Heilbrun, Christina ; Li, Li ; Hu, Wen ; Yan, Hanfei ; Huang, Xiaojing ; Ge, Mingyuan ; Nazareski, Evgeny ; Chu, Yong S. ; Yoo, Shinjae ; Zhang, Xuebin ; Liu, Chang Jun. / Seasonal differences in trace element concentrations and distribution in Spartina alterniflora root tissue. In: Chemosphere. 2018 ; Vol. 204. pp. 359-370.
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title = "Seasonal differences in trace element concentrations and distribution in Spartina alterniflora root tissue",
abstract = "The present study uses nanometer-scale synchrotron X-ray nanofluorescence to investigate season differences in concentrations and distributions of major (Ca, K, S and P) and trace elements (As, Cr, Cu, Fe and Zn) in the root system of Spartina alterniflora collected from Jamaica Bay, New York, in April and September 2015. The root samples were cross-sectioned at a thickness of 10 μm. Selected areas in the root epidermis and endodermis were mapped with a sampling resolution of 100 and 200 nm, varying with the mapping areas. The results indicate that trace element concentrations in the epidermis and endodermis vary among the elements measured, possibly because of their different chemical properties or their ability to act as micronutrients for the plants. Elemental concentrations (As, Ca, Cr, Cu, Fe, K, P, S and Zn) within each individual root sample and between the root samples collected during two different seasons are both significantly different (p < 0.01). Furthermore, this study indicates that the nonessential elements (As and Cr) are significantly correlated (p < 0.01) with Fe, with high concentrations in the root epidermis, while others are not, implying that Fe may be a barrier to nonessential element transport in the root system. Hierarchy cluster analysis shows two distinct groups, one including As, Cr and Fe and the other the rest of the elements measured. Factor analysis also indicates that the processes and mechanisms controlling element transport in the root system can be different between the nutrient and nonessential elements.",
keywords = "Metal uptake, Nanoanalysis, Porewater, Spartina alterniflora, Synchrotron XRF, Trace elements",
author = "Huan Feng and Yu Qian and Cochran, {J. Kirk} and Qingzhi Zhu and Christina Heilbrun and Li Li and Wen Hu and Hanfei Yan and Xiaojing Huang and Mingyuan Ge and Evgeny Nazareski and Chu, {Yong S.} and Shinjae Yoo and Xuebin Zhang and Liu, {Chang Jun}",
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Feng, H, Qian, Y, Cochran, JK, Zhu, Q, Heilbrun, C, Li, L, Hu, W, Yan, H, Huang, X, Ge, M, Nazareski, E, Chu, YS, Yoo, S, Zhang, X & Liu, CJ 2018, 'Seasonal differences in trace element concentrations and distribution in Spartina alterniflora root tissue', Chemosphere, vol. 204, pp. 359-370. https://doi.org/10.1016/j.chemosphere.2018.04.058

Seasonal differences in trace element concentrations and distribution in Spartina alterniflora root tissue. / Feng, Huan; Qian, Yu; Cochran, J. Kirk; Zhu, Qingzhi; Heilbrun, Christina; Li, Li; Hu, Wen; Yan, Hanfei; Huang, Xiaojing; Ge, Mingyuan; Nazareski, Evgeny; Chu, Yong S.; Yoo, Shinjae; Zhang, Xuebin; Liu, Chang Jun.

In: Chemosphere, Vol. 204, 01.08.2018, p. 359-370.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Seasonal differences in trace element concentrations and distribution in Spartina alterniflora root tissue

AU - Feng, Huan

AU - Qian, Yu

AU - Cochran, J. Kirk

AU - Zhu, Qingzhi

AU - Heilbrun, Christina

AU - Li, Li

AU - Hu, Wen

AU - Yan, Hanfei

AU - Huang, Xiaojing

AU - Ge, Mingyuan

AU - Nazareski, Evgeny

AU - Chu, Yong S.

AU - Yoo, Shinjae

AU - Zhang, Xuebin

AU - Liu, Chang Jun

PY - 2018/8/1

Y1 - 2018/8/1

N2 - The present study uses nanometer-scale synchrotron X-ray nanofluorescence to investigate season differences in concentrations and distributions of major (Ca, K, S and P) and trace elements (As, Cr, Cu, Fe and Zn) in the root system of Spartina alterniflora collected from Jamaica Bay, New York, in April and September 2015. The root samples were cross-sectioned at a thickness of 10 μm. Selected areas in the root epidermis and endodermis were mapped with a sampling resolution of 100 and 200 nm, varying with the mapping areas. The results indicate that trace element concentrations in the epidermis and endodermis vary among the elements measured, possibly because of their different chemical properties or their ability to act as micronutrients for the plants. Elemental concentrations (As, Ca, Cr, Cu, Fe, K, P, S and Zn) within each individual root sample and between the root samples collected during two different seasons are both significantly different (p < 0.01). Furthermore, this study indicates that the nonessential elements (As and Cr) are significantly correlated (p < 0.01) with Fe, with high concentrations in the root epidermis, while others are not, implying that Fe may be a barrier to nonessential element transport in the root system. Hierarchy cluster analysis shows two distinct groups, one including As, Cr and Fe and the other the rest of the elements measured. Factor analysis also indicates that the processes and mechanisms controlling element transport in the root system can be different between the nutrient and nonessential elements.

AB - The present study uses nanometer-scale synchrotron X-ray nanofluorescence to investigate season differences in concentrations and distributions of major (Ca, K, S and P) and trace elements (As, Cr, Cu, Fe and Zn) in the root system of Spartina alterniflora collected from Jamaica Bay, New York, in April and September 2015. The root samples were cross-sectioned at a thickness of 10 μm. Selected areas in the root epidermis and endodermis were mapped with a sampling resolution of 100 and 200 nm, varying with the mapping areas. The results indicate that trace element concentrations in the epidermis and endodermis vary among the elements measured, possibly because of their different chemical properties or their ability to act as micronutrients for the plants. Elemental concentrations (As, Ca, Cr, Cu, Fe, K, P, S and Zn) within each individual root sample and between the root samples collected during two different seasons are both significantly different (p < 0.01). Furthermore, this study indicates that the nonessential elements (As and Cr) are significantly correlated (p < 0.01) with Fe, with high concentrations in the root epidermis, while others are not, implying that Fe may be a barrier to nonessential element transport in the root system. Hierarchy cluster analysis shows two distinct groups, one including As, Cr and Fe and the other the rest of the elements measured. Factor analysis also indicates that the processes and mechanisms controlling element transport in the root system can be different between the nutrient and nonessential elements.

KW - Metal uptake

KW - Nanoanalysis

KW - Porewater

KW - Spartina alterniflora

KW - Synchrotron XRF

KW - Trace elements

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