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Examination of arsenic(III) and (V) uptake by the desert plant species mesquite (Prosopis spp.) using X-ray absorption spectroscopy.
Sci Total Environ. 2007 Jul 01; 379(2-3):249-55.ST

Abstract

This study describes the effects of Arsenic(III) and (V) on the growth and their uptake by the desert plant mesquite (Prosopis spp.). Seedlings were sown in agar-based medium containing a modified Hoagland's nutrient solution. After 1 week, the seedlings were transplanted to arsenic (As) treated agar media that contained 5 mgL(-1) of As either As(III) (As(2)O(3)) or As(V) (As(2)O(5)). The plants were harvested after 14 days of growth and sectioned into roots, stems, and leaves. After digestion, As concentrations in the roots, stems, and leaves were determined using inductively coupled plasma-optical emission spectroscopy (ICP-OES). Our results showed that the As concentrations from As(V) were significantly higher than the As concentrations from As(III) in all portions of the plant. Plants exposed to As(V) concentrated (mg As kg(-1) d wt) about 770+/-191, 326+/-94, and 119+/-18 in roots, stems, and leaves, respectively. X-ray absorption spectroscopy (XAS) showed that As(V) was reduced to As(III) inside the mesquite plant. In addition, greater than 90% of the As(III) found in the mesquite plants was bound to sulfur ligands in the roots, stems and leaves.

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Authors+Show Affiliations

Aldrich MV
Environmental Science and Engineering Program, Department of Chemistry, University of Texas at El Paso, 500 W University Ave., El Paso, TX 79968-0513, USA.
Peralta-Videa JR
No affiliation info available
Parsons JG
No affiliation info available
Gardea-Torresdey JL
No affiliation info available

MeSH

ArsenicBiodegradation, EnvironmentalPlant LeavesPlant RootsPlant StemsProsopisSoil PollutantsSpectrum AnalysisX-Rays

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17055035

Citation

Aldrich, M V., et al. "Examination of arsenic(III) and (V) Uptake By the Desert Plant Species Mesquite (Prosopis Spp.) Using X-ray Absorption Spectroscopy." The Science of the Total Environment, vol. 379, no. 2-3, 2007, pp. 249-55.
Aldrich MV, Peralta-Videa JR, Parsons JG, et al. Examination of arsenic(III) and (V) uptake by the desert plant species mesquite (Prosopis spp.) using X-ray absorption spectroscopy. Sci Total Environ. 2007;379(2-3):249-55.
Aldrich, M. V., Peralta-Videa, J. R., Parsons, J. G., & Gardea-Torresdey, J. L. (2007). Examination of arsenic(III) and (V) uptake by the desert plant species mesquite (Prosopis spp.) using X-ray absorption spectroscopy. The Science of the Total Environment, 379(2-3), 249-55.
Aldrich MV, et al. Examination of arsenic(III) and (V) Uptake By the Desert Plant Species Mesquite (Prosopis Spp.) Using X-ray Absorption Spectroscopy. Sci Total Environ. 2007 Jul 1;379(2-3):249-55. PubMed PMID: 17055035.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Examination of arsenic(III) and (V) uptake by the desert plant species mesquite (Prosopis spp.) using X-ray absorption spectroscopy. AU - Aldrich,M V, AU - Peralta-Videa,J R, AU - Parsons,J G, AU - Gardea-Torresdey,J L, Y1 - 2006/10/19/ PY - 2005/07/21/received PY - 2006/04/27/revised PY - 2006/08/27/accepted PY - 2006/10/24/pubmed PY - 2007/8/31/medline PY - 2006/10/24/entrez SP - 249 EP - 55 JF - The Science of the total environment JO - Sci Total Environ VL - 379 IS - 2-3 N2 - This study describes the effects of Arsenic(III) and (V) on the growth and their uptake by the desert plant mesquite (Prosopis spp.). Seedlings were sown in agar-based medium containing a modified Hoagland's nutrient solution. After 1 week, the seedlings were transplanted to arsenic (As) treated agar media that contained 5 mgL(-1) of As either As(III) (As(2)O(3)) or As(V) (As(2)O(5)). The plants were harvested after 14 days of growth and sectioned into roots, stems, and leaves. After digestion, As concentrations in the roots, stems, and leaves were determined using inductively coupled plasma-optical emission spectroscopy (ICP-OES). Our results showed that the As concentrations from As(V) were significantly higher than the As concentrations from As(III) in all portions of the plant. Plants exposed to As(V) concentrated (mg As kg(-1) d wt) about 770+/-191, 326+/-94, and 119+/-18 in roots, stems, and leaves, respectively. X-ray absorption spectroscopy (XAS) showed that As(V) was reduced to As(III) inside the mesquite plant. In addition, greater than 90% of the As(III) found in the mesquite plants was bound to sulfur ligands in the roots, stems and leaves. SN - 0048-9697 UR - https://www.unboundmedicine.com/medline/citation/17055035/Examination_of_arsenic_III__and__V__uptake_by_the_desert_plant_species_mesquite__Prosopis_spp___using_X_ray_absorption_spectroscopy_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0048-9697(06)00731-5 DB - PRIME DP - Unbound Medicine ER -