title: Remediation effect of compost on soluble mercury transfer in a crop of Phaseolus vulgaris.
abstract: We studied the dynamics of mercury (Hg) transfer in Phaseolus vulgaris plants grown in soil with Hg-doped compost at the maximum levels permitted by Colombian law on organic amendments. Quantitative evaluation of transfer was made in different plant organs: roots, stem, leaves, pods and seeds. Matrix effect was determined in doped soil assays, using soil with and without addition of compost. Results showed that the use of organic matter reduced Hg transfer to the plant and the amount transferred was differentially distributed to the organs. We observed an inverse relationship between concentration and distance from the body to the root. It was evident that transfer was mediated by quantitative factors; the greater the presence of mercury in soil, the larger the amount that will be transferred. Results also indicate the remedial effect of compost and the presence of a barrier, at the root level, against mercury translocation to the plant aerial parts.
authors.affiliation: Interdisciplinary Group of Molecular Studies (GIEM), Institute of Chemistry, Faculty of Natural and Exact Sciences, University of Antioquia, Calle 70 No 52-21, Medellín, Colombia. Electronic address: neugenia.restrepo@udea.edu.co.
authors.forename: Nora E
authors.initials: NE
authors.lastname: Restrepo-Sánchez
authors.affiliation: Interdisciplinary Group of Molecular Studies (GIEM), Institute of Chemistry, Faculty of Natural and Exact Sciences, University of Antioquia, Calle 70 No 52-21, Medellín, Colombia.
authors.forename: Liliana
authors.initials: L
authors.lastname: Acevedo-Betancourth
authors.affiliation: Interdisciplinary Group of Molecular Studies (GIEM), Institute of Chemistry, Faculty of Natural and Exact Sciences, University of Antioquia, Calle 70 No 52-21, Medellín, Colombia.
authors.forename: Beatriz
authors.initials: B
authors.lastname: Henao-Murillo
authors.affiliation: Interdisciplinary Group of Molecular Studies (GIEM), Institute of Chemistry, Faculty of Natural and Exact Sciences, University of Antioquia, Calle 70 No 52-21, Medellín, Colombia.
authors.forename: Carlos
authors.initials: C
authors.lastname: Peláez-Jaramillo
mesh_terms: D052918:Environmental Restoration and Remediation; D008628:Mercury / Q000737:chemistry / Q000378:metabolism*; D027805:Phaseolus / Q000737:chemistry / Q000378:metabolism*; D012987:Soil; D012989:Soil Pollutants / Q000737:chemistry / Q000378:metabolism*
chemical_list: D012987:Soil; D012989:Soil Pollutants; D008628:Mercury
keywords: Mercury; Organic matter; Remediation; Soil pollution; Trophic transfer