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Synchrotron X-ray absorption-edge computed microtomography imaging of thallium compartmentalization in Iberis intermedia

Thallium is an extremely toxic metal which, due to its similarities to K, is readily taken up by plants grown in Tl-contaminated soils. Thallium is also a precious metal nearly as economically valuable as gold. Thallium is efficiently hyperaccumulated in Iberis intermedia as aqueous Tl(I) with highe... Full description

Journal Title: Plant and soil 2007-01-01, Vol.290 (1/2), p.51-60
Main Author: SCHECKEL, Kirk G
Other Authors: HAMON, Rebecca , JASSOGNE, Laurence , RIVERS, Mark , LOMBI, Enzo
Format: Electronic Article Electronic Article
Language: English
Subjects:
Publisher: Dordrecht: Springer
ID: ISSN: 0032-079X
Link: http://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=18492343
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recordid: cdi_rmit_indexesarchive_Synchrotron_X_ray_abE09643
title: Synchrotron X-ray absorption-edge computed microtomography imaging of thallium compartmentalization in Iberis intermedia
format: Article
creator:
  • SCHECKEL, Kirk G
  • HAMON, Rebecca
  • JASSOGNE, Laurence
  • RIVERS, Mark
  • LOMBI, Enzo
subjects:
  • Agronomy. Soil science and plant productions
  • Analytical methods
  • Animal, plant and microbial ecology
  • Assessment
  • Biological and medical sciences
  • Cardiovascular system
  • Computed tomography
  • Concentration
  • Cotyledons
  • Evaluation
  • Fundamental and applied biological sciences. Psychology
  • Heavy metals
  • Hyperaccumulation
  • Hyperaccumulators
  • Iberis intermedia
  • Image reconstruction
  • Leaves
  • Plants
  • Soil pollution
  • Spatial distribution
  • Spatial variation
  • Speciation
  • Synchrotron spectroscopy
  • Synchrotrons
  • Thallium
  • Toxic substances
  • Uptake
  • X-ray absorptiometry
ispartof: Plant and soil, 2007-01-01, Vol.290 (1/2), p.51-60
description: Thallium is an extremely toxic metal which, due to its similarities to K, is readily taken up by plants grown in Tl-contaminated soils. Thallium is also a precious metal nearly as economically valuable as gold. Thallium is efficiently hyperaccumulated in Iberis intermedia as aqueous Tl(I) with highest concentrations within the vascular network of leaves. In this study we examine the utility of synchrotron X-ray differential absorption-edge computed microtomography (CMT) in determining the distribution and compartmentalization of thallium (Tl) in Iberis intermedia. We found Tl to be distributed in solution throughout the vascular system of I. intermedia. Current laboratory experiments are examining the characteristics and potential recovery of Tl by I. intermedia with the objectives to remediate its toxic risks and to facilitate its reclamation for reuse. However, the recovery and reuse of Tl from I. intermedia by way of phytomining requires knowledge on the speciation, distribution and compartmentalization of thallium. CMT shows great promise for application in a wide variety of metal-related structural issues due to its high 3D resolution and being a non-destructive analysis tool.
language: eng
source:
identifier: ISSN: 0032-079X
fulltext: no_fulltext
issn:
  • 0032-079X
  • 1573-5036
url: Link


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titleSynchrotron X-ray absorption-edge computed microtomography imaging of thallium compartmentalization in Iberis intermedia
creatorSCHECKEL, Kirk G ; HAMON, Rebecca ; JASSOGNE, Laurence ; RIVERS, Mark ; LOMBI, Enzo
creatorcontribSCHECKEL, Kirk G ; HAMON, Rebecca ; JASSOGNE, Laurence ; RIVERS, Mark ; LOMBI, Enzo
descriptionThallium is an extremely toxic metal which, due to its similarities to K, is readily taken up by plants grown in Tl-contaminated soils. Thallium is also a precious metal nearly as economically valuable as gold. Thallium is efficiently hyperaccumulated in Iberis intermedia as aqueous Tl(I) with highest concentrations within the vascular network of leaves. In this study we examine the utility of synchrotron X-ray differential absorption-edge computed microtomography (CMT) in determining the distribution and compartmentalization of thallium (Tl) in Iberis intermedia. We found Tl to be distributed in solution throughout the vascular system of I. intermedia. Current laboratory experiments are examining the characteristics and potential recovery of Tl by I. intermedia with the objectives to remediate its toxic risks and to facilitate its reclamation for reuse. However, the recovery and reuse of Tl from I. intermedia by way of phytomining requires knowledge on the speciation, distribution and compartmentalization of thallium. CMT shows great promise for application in a wide variety of metal-related structural issues due to its high 3D resolution and being a non-destructive analysis tool.
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subjectAgronomy. Soil science and plant productions ; Analytical methods ; Animal, plant and microbial ecology ; Assessment ; Biological and medical sciences ; Cardiovascular system ; Computed tomography ; Concentration ; Cotyledons ; Evaluation ; Fundamental and applied biological sciences. Psychology ; Heavy metals ; Hyperaccumulation ; Hyperaccumulators ; Iberis intermedia ; Image reconstruction ; Leaves ; Plants ; Soil pollution ; Spatial distribution ; Spatial variation ; Speciation ; Synchrotron spectroscopy ; Synchrotrons ; Thallium ; Toxic substances ; Uptake ; X-ray absorptiometry
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abstractThallium is an extremely toxic metal which, due to its similarities to K, is readily taken up by plants grown in Tl-contaminated soils. Thallium is also a precious metal nearly as economically valuable as gold. Thallium is efficiently hyperaccumulated in Iberis intermedia as aqueous Tl(I) with highest concentrations within the vascular network of leaves. In this study we examine the utility of synchrotron X-ray differential absorption-edge computed microtomography (CMT) in determining the distribution and compartmentalization of thallium (Tl) in Iberis intermedia. We found Tl to be distributed in solution throughout the vascular system of I. intermedia. Current laboratory experiments are examining the characteristics and potential recovery of Tl by I. intermedia with the objectives to remediate its toxic risks and to facilitate its reclamation for reuse. However, the recovery and reuse of Tl from I. intermedia by way of phytomining requires knowledge on the speciation, distribution and compartmentalization of thallium. CMT shows great promise for application in a wide variety of metal-related structural issues due to its high 3D resolution and being a non-destructive analysis tool.
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