Competitive Mobilization of Phosphate and Arsenate Associated with Goethite by Root Activity

Arsenate (AsV) is the predominant form of arsenic in soils under aerobic conditions and competes with the major plant nutrient phosphorus (P) in the form of phosphate (PV) not only for sorption sites on mineral surfaces in soil but also for root membrane transporters. Plants have evolved several mec...

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Veröffentlicht in:	Journal of environmental quality 2007-11, Vol.36 (6), p.1811-1820
Hauptverfasser:	Vetterlein, D, Szegedi, K, Ackermann, J, Mattusch, J, Neue, H.U, Tanneberg, H, Jahn, R
Format:	Artikel
Sprache:	eng
Schlagworte:	Aerobic conditions Anions Aqueous solutions arsenates Arsenates - metabolism Arsenic Binding sites case studies chemical speciation Competition Crops Fertilizers goethite iron Iron Compounds - metabolism Membranes Minerals Phosphates Phosphates - metabolism Phosphorus Physical properties Plant Roots - metabolism Q1 Q2 Quartz rhizosphere roots Soil Soil physical properties soil pollution soil properties soil solution soil-plant interactions Soils Sorption uptake mechanisms Zea mays Zea mays - metabolism
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