caa a22 4500 47711217X CHVBK 20180405111612.0 cr unu---uuuuu 170330e19960501xx s 000 0 eng 10.1007/BF00029054 doi (NATIONALLICENCE)springer-10.1007/BF00029054 Aluminium-organic acid interactions in acid soils [Elektronische Daten] II. Influence of solid phase sorption on organic acid-Al complexation and Al rhizotoxicity [David Jones, Abdul Prabowo, Leon Kochian] Malic acid has been implicated as an inducible root mechanism for the detoxification of rhizotoxic Al. The chemical reactions of malate were therefore investigated in four acid soils ranging in pH from 4.30 to 5.00. All the soils behaved similarly, with malate predominantly complexing Al in solution in favor of other metal cations (Fe, Mn, Cu, Zn, Ca and Mg). Comparison of experimental extraction results with theoretical predictions made using Geochem-PC showed a similar agreement, indicating that the behavior of Al and malate in soil was similar to their behavior in an ideal solution. Competitive anion sorption studies with synthetic Fe and Al(OH)3(s) gels showed similar sorption sites for phosphate, citrate and malate, however, malate was weakly sorped in comparison to phosphate and citrate. Sorption was little affected by solution pH. Malate sorption did not appear to be largely influenced by metal complexation in soils; however, sorption onto Fe and Al(OH)3 gels was markedly reduced in the presence of complexing metal cations. The implications of these results in understanding the role of malate exudation from the root in Al detoxification in the rhizosphere are discussed. Kluwer Academic Publishers, 1996 aluminium nationallicence chemistry nationallicence malate nationallicence organic acids nationallicence rhizosphere nationallicence Jones David School of Agricultural and Forest Sciences, University of Wales, LL57 2UW, Bangor, Gwynedd, UK aut Prabowo Abdul Department of Soil Science, Brawijaya University, Malang, Indonesia aut Kochian Leon U.S. Plant Soil and Nutrition Laboratory, USDA-ARS, Cornell University, 14853, Ithaca, NY, USA aut Plant and Soil Kluwer Academic Publishers; gopher://gopher.wkap.nl 182/2(1996-05-01), 229-237 0032-079X 182:2<229 1996 182 11104 https://doi.org/10.1007/BF00029054 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00029054 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jones David School of Agricultural and Forest Sciences, University of Wales, LL57 2UW, Bangor, Gwynedd, UK aut NATIONALLICENCE 700 1- Prabowo Abdul Department of Soil Science, Brawijaya University, Malang, Indonesia aut NATIONALLICENCE 700 1- Kochian Leon U.S. Plant Soil and Nutrition Laboratory, USDA-ARS, Cornell University, 14853, Ithaca, NY, USA aut NATIONALLICENCE 773 0- Plant and Soil Kluwer Academic Publishers; gopher://gopher.wkap.nl/ 182/2(1996-05-01), 229-237 0032-079X 182:2<229 1996 182 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer