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Spectroscopic study of the impact of arsenic speciation on arsenic/phosphorus uptake and plant growth in tumbleweed (Salsola kali).
Environ Sci Technol. 2006 Mar 15; 40(6):1991-6.ES

Abstract

This manuscript reports the toxic effects of As2O3 (arsenic trioxide) and As2O5 (arsenic pentoxide) on S. kali as well as the arsenic and phosphate uptake and arsenic coordination within plant tissues. Plants were germinated and grown for 15 days on a Hoagland-modified medium containing either As(III) (arsenic trioxide) or As(V) (arsenic pentoxide). Subsequently, the seedlings were measured and analyzed using inductively coupled plasma optical emission spectroscopy and X-ray absorption spectroscopy techniques. Plants stressed with 2 mg L(-1) of whichever As(III) or As(V) concentrated 245 +/- 19, 30 +/- 1, and 60 +/- 3 mg As kg(-1) dry weight or 70 +/- 6, 10 +/- 0.3, and 27 +/- 3 mg As kg(-1) dry weight in roots, stems, and leaves, respectively. Arsenate was less toxic, and more As translocation occurred from the roots to the leaves. All treatments reduced P concentration at root level; however, only As(V) at 2 and 4 mg L(-1) reduced P concentration at leaf level. Regardless the arsenic species supplied to the plants, arsenic was found in plant tissues as As(III) coordinated to three sulfur ligands with an interatomic distance of approximately 2.25 angstroms.

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Authors+Show Affiliations

De la Rosa G
University of Texas at El Paso, Environmental Science and Engineering Ph.D. Program, 500 West University Avenue, El Paso, Texas, 79968, USA.
Parsons JG
No affiliation info available
Martinez-Martinez A
No affiliation info available
Peralta-Videa JR
No affiliation info available
Gardea-Torresdey JL
No affiliation info available

MeSH

ArsenicArsenic TrioxideArsenicalsLigandsOxidesPhosphorusPlant LeavesPlant RootsSalsolaSpectrum AnalysisSulfur

Pub Type(s)

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

Language

eng

PubMed ID

16570626

Citation

De la Rosa, Guadalupe, et al. "Spectroscopic Study of the Impact of Arsenic Speciation On Arsenic/phosphorus Uptake and Plant Growth in Tumbleweed (Salsola Kali)." Environmental Science & Technology, vol. 40, no. 6, 2006, pp. 1991-6.
De la Rosa G, Parsons JG, Martinez-Martinez A, et al. Spectroscopic study of the impact of arsenic speciation on arsenic/phosphorus uptake and plant growth in tumbleweed (Salsola kali). Environ Sci Technol. 2006;40(6):1991-6.
De la Rosa, G., Parsons, J. G., Martinez-Martinez, A., Peralta-Videa, J. R., & Gardea-Torresdey, J. L. (2006). Spectroscopic study of the impact of arsenic speciation on arsenic/phosphorus uptake and plant growth in tumbleweed (Salsola kali). Environmental Science & Technology, 40(6), 1991-6.
De la Rosa G, et al. Spectroscopic Study of the Impact of Arsenic Speciation On Arsenic/phosphorus Uptake and Plant Growth in Tumbleweed (Salsola Kali). Environ Sci Technol. 2006 Mar 15;40(6):1991-6. PubMed PMID: 16570626.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Spectroscopic study of the impact of arsenic speciation on arsenic/phosphorus uptake and plant growth in tumbleweed (Salsola kali). AU - De la Rosa,Guadalupe, AU - Parsons,Jason G, AU - Martinez-Martinez,Alejandro, AU - Peralta-Videa,Jose R, AU - Gardea-Torresdey,Jorge L, PY - 2006/3/31/pubmed PY - 2006/11/10/medline PY - 2006/3/31/entrez SP - 1991 EP - 6 JF - Environmental science & technology JO - Environ Sci Technol VL - 40 IS - 6 N2 - This manuscript reports the toxic effects of As2O3 (arsenic trioxide) and As2O5 (arsenic pentoxide) on S. kali as well as the arsenic and phosphate uptake and arsenic coordination within plant tissues. Plants were germinated and grown for 15 days on a Hoagland-modified medium containing either As(III) (arsenic trioxide) or As(V) (arsenic pentoxide). Subsequently, the seedlings were measured and analyzed using inductively coupled plasma optical emission spectroscopy and X-ray absorption spectroscopy techniques. Plants stressed with 2 mg L(-1) of whichever As(III) or As(V) concentrated 245 +/- 19, 30 +/- 1, and 60 +/- 3 mg As kg(-1) dry weight or 70 +/- 6, 10 +/- 0.3, and 27 +/- 3 mg As kg(-1) dry weight in roots, stems, and leaves, respectively. Arsenate was less toxic, and more As translocation occurred from the roots to the leaves. All treatments reduced P concentration at root level; however, only As(V) at 2 and 4 mg L(-1) reduced P concentration at leaf level. Regardless the arsenic species supplied to the plants, arsenic was found in plant tissues as As(III) coordinated to three sulfur ligands with an interatomic distance of approximately 2.25 angstroms. SN - 0013-936X UR - https://www.unboundmedicine.com/medline/citation/16570626/Spectroscopic_study_of_the_impact_of_arsenic_speciation_on_arsenic/phosphorus_uptake_and_plant_growth_in_tumbleweed__Salsola_kali__ DB - PRIME DP - Unbound Medicine ER -