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Effects of oxalate and phosphate on the release of arsenic from contaminated soils and arsenic accumulation in wheat.
Chemosphere. 2006 Nov; 65(8):1281-7.C

Abstract

Oxalate is exuded by plants in the rhizosphere and plays an important role in the soil/root interactions. Phosphate fertilizer is widely used all over the world and may influence the behavior of arsenic (As) in soils. In this study oxalate and phosphate were used as extractants to investigate their effects on the release of As from three As-contaminated soils and the chemical speciation of As. Concentrations of arsenite (As(III)) and arsenate (As(V)) released progressively increased by increasing the concentrations of oxalate or phosphate. The released As(V) content was higher than that of As(III) and the differences between As(V) and As(III) released by oxalate was more obvious than by phosphate. Greenhouse experiment was conducted to evaluate the effects of oxalate and phosphate on As uptake by wheat (Triticum vulgare L.). Addition of oxalate or phosphate resulted in the increase of As accumulation in both wheat root and shoot and the effect of phosphate was more obvious than that of oxalate.

Authors+Show Affiliations

Tao Y
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, China.
Zhang S
No affiliation info available
Jian W
No affiliation info available
Yuan C
No affiliation info available
Shan XQ
No affiliation info available

MeSH

ArsenicOxalatesPhosphatesPlant RootsPlant ShootsSoil PollutantsTime FactorsTriticum

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16750554

Citation

Tao, Yuqiang, et al. "Effects of Oxalate and Phosphate On the Release of Arsenic From Contaminated Soils and Arsenic Accumulation in Wheat." Chemosphere, vol. 65, no. 8, 2006, pp. 1281-7.
Tao Y, Zhang S, Jian W, et al. Effects of oxalate and phosphate on the release of arsenic from contaminated soils and arsenic accumulation in wheat. Chemosphere. 2006;65(8):1281-7.
Tao, Y., Zhang, S., Jian, W., Yuan, C., & Shan, X. Q. (2006). Effects of oxalate and phosphate on the release of arsenic from contaminated soils and arsenic accumulation in wheat. Chemosphere, 65(8), 1281-7.
Tao Y, et al. Effects of Oxalate and Phosphate On the Release of Arsenic From Contaminated Soils and Arsenic Accumulation in Wheat. Chemosphere. 2006;65(8):1281-7. PubMed PMID: 16750554.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of oxalate and phosphate on the release of arsenic from contaminated soils and arsenic accumulation in wheat. AU - Tao,Yuqiang, AU - Zhang,Shuzhen, AU - Jian,Wei, AU - Yuan,Chungang, AU - Shan,Xiao-quan, Y1 - 2006/06/05/ PY - 2005/11/11/received PY - 2006/04/10/revised PY - 2006/04/11/accepted PY - 2006/6/6/pubmed PY - 2007/2/10/medline PY - 2006/6/6/entrez SP - 1281 EP - 7 JF - Chemosphere JO - Chemosphere VL - 65 IS - 8 N2 - Oxalate is exuded by plants in the rhizosphere and plays an important role in the soil/root interactions. Phosphate fertilizer is widely used all over the world and may influence the behavior of arsenic (As) in soils. In this study oxalate and phosphate were used as extractants to investigate their effects on the release of As from three As-contaminated soils and the chemical speciation of As. Concentrations of arsenite (As(III)) and arsenate (As(V)) released progressively increased by increasing the concentrations of oxalate or phosphate. The released As(V) content was higher than that of As(III) and the differences between As(V) and As(III) released by oxalate was more obvious than by phosphate. Greenhouse experiment was conducted to evaluate the effects of oxalate and phosphate on As uptake by wheat (Triticum vulgare L.). Addition of oxalate or phosphate resulted in the increase of As accumulation in both wheat root and shoot and the effect of phosphate was more obvious than that of oxalate. SN - 0045-6535 UR - https://www.unboundmedicine.com/medline/citation/16750554/Effects_of_oxalate_and_phosphate_on_the_release_of_arsenic_from_contaminated_soils_and_arsenic_accumulation_in_wheat_ DB - PRIME DP - Unbound Medicine ER -