Biogenic separation, accumulation and cellular distribution of Cu, Co, and Ni in medicago sativa under idealized conditions

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dc.contributor.authorBali, Ren_AU
dc.contributor.authorSiegele, Ren_AU
dc.contributor.authorHarris, ATen_AU
dc.date.accessioned2010-08-05T01:41:18Zen_AU
dc.date.available2010-08-05T01:41:18Zen_AU
dc.date.issued2010-06en_AU
dc.date.statistics2010-06en_AU
dc.description.abstractThe limits of uptake of Co, Ni, and Cu by the common metallophyte, Medicago sativa, were assessed using hydroponic growth and metal uptake experiments. The influence of the growth substrate metal concentration (500 and 1000 ppm) and exposure time, i.e., the time plants were exposed to the metal solution (24, 48, or 72 h) was investigated. The combined roots and shoots of Medicago sativa accumulated up to 2.2 wt-% Co, 2.0 wt-% Ni, and 3.5 wt-% Cu, when exposed to aqueous solutions containing 1000 ppm Co for 48 h, 1000 ppm Ni for 72 h, and 1000 ppm Cu for 72 h, respectively. The distribution of the sequestered metals was assessed using proton induced that X-ray emission spectroscopy (μ-PIXE), which indicated that translocation mechanism was most likely xylem loading. However, the rate of translocation of the metal from the roots to the plant stem was different for each metal, suggesting differing mechanisms for each. Collectively, these results suggest the separation and removal of the heavy metals Cu, Co, and Ni from contaminated substrates using Medicago sativa is a viable technology. © 2010, Taylor & Francis Ltd.en_AU
dc.identifier.citationBali, R., Siegele, R., & Harris, A. T. (2010). Biogenic separation, accumulation and cellular distribution of Cu, Co, and Ni in medicago sativa under idealized conditions. Separation Science and Technology, 45(10), 1395-1401. doi:10.1080/01496391003681014en_AU
dc.identifier.govdoc2205en_AU
dc.identifier.issn0149-6395en_AU
dc.identifier.issue10en_AU
dc.identifier.journaltitleSeparation Science and Technologyen_AU
dc.identifier.pagination1395-1401en_AU
dc.identifier.urihttp://dx.doi.org/10.1080/01496391003681014en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/2045en_AU
dc.identifier.volume45en_AU
dc.language.isoenen_AU
dc.publisherTaylor & Francisen_AU
dc.subjectCobalten_AU
dc.subjectCopperen_AU
dc.subjectNickelen_AU
dc.subjectPlantsen_AU
dc.subjectBiological accumulationen_AU
dc.subjectUptakeen_AU
dc.titleBiogenic separation, accumulation and cellular distribution of Cu, Co, and Ni in medicago sativa under idealized conditionsen_AU
dc.typeJournal Articleen_AU
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