title: Role of Phragmites australis (common reed) for heavy metals phytoremediation of estuarine sediments.
abstract: The ability of Phragmites australis to take up heavy metals (Co, Ni, Mo, Cd, Pb, Cr, Cu, Fe, Mn, Zn, and Hg) and other trace elements (As, Se, Ba), from estuarine sediments was investigated using a pilot plant experimental approach. Bioaccumulation (BCF) and translocation factors (TF) were calculated in vegetative and senescence periods for two populations of P. australis, from contaminated (MIC) and non-contaminated (GAL) estuarine sediments, respectively, both growing in estuarine contaminated sediment (RIA) from ría del Carmen y Boo, Santander Bay, Spain. The highest BCF values were obtained for Ni (0.43), Ba (0.43) Mo (0.36), Cr (0.35), and Cd (0.31) for plants collected from site GAL following the senescence period. The highest BCF values recorded for plants collected from MIC following the senescence period were for Mo (0.22) and Cu (0.22). Following senescence, plants collected from GAL and MIC presented TF>1 for Ni, Mo, Se, and Zn, and in addition plants collected from MIC presented TF>1 for Ba, Cr, and Mn. A substantial increase of Micedo's rhizosphere, six times higher than Galizano's rhizosphere, suggested adaptation to contaminated sediment. The evaluated communities of P. australis demonstrated their suitability for phytoremediation of heavy metals contaminated estuarine sediments.
authors.affiliation: a Asociación RIA , Cantabria , Spain.
authors.forename: Diego
authors.initials: D
authors.lastname: Cicero-Fernández
authors.affiliation: a Asociación RIA , Cantabria , Spain.
authors.forename: Manuel
authors.initials: M
authors.lastname: Peña-Fernández
authors.affiliation: a Asociación RIA , Cantabria , Spain.
authors.forename: Jose A
authors.initials: JA
authors.lastname: Expósito-Camargo
authors.affiliation: a Asociación RIA , Cantabria , Spain.|b Emerald Energy Consultancy Ltd , England , United Kingdom.
authors.forename: Blanca
authors.initials: B
authors.lastname: Antizar-Ladislao
mesh_terms: D001673:Biodegradation, Environmental; D052918:Environmental Restoration and Remediation / Q000295:instrumentation / Q000379:methods*; D019015:Geologic Sediments / Q000032:analysis*; D019216:Metals, Heavy / Q000032:analysis / Q000378:metabolism*; D018515:Plant Leaves / Q000737:chemistry / Q000378:metabolism; D006109:Poaceae / Q000737:chemistry / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000378:metabolism*
chemical_list: D019216:Metals, Heavy; D014874:Water Pollutants, Chemical
keywords: bioconcentration; hyper-accumulation; macrophyte; phytoextraction; phytostabilization; translocation