title: Bioremoval of trace metals from rhizosediment by mangrove plants in Indian Sundarban Wetland.
abstract: The study accentuated the trace metal accumulation and distribution pattern in individual organs of 13 native mangrove plants along with rhizosediments in the Indian Sundarban Wetland. Enrichment of the essential micronutrients (Mn, Fe, Zn, Cu, Co, Ni) was recorded in all plant organs in comparison to non-essential ones, such as Cr, As, Pb, Cd, Hg. Trunk bark and root/pneumatophore showed maximum metal accumulation efficiency. Rhizosediment recorded manifold increase for most of the trace metals than plant tissue, with the following descending order: Fe>Mn>Zn>Cu>Pb>Ni>Cr>Co>As>Cd>Hg. Concentrations of Cu, Ni, Pb and Hg were found to exceed prescribed sediment quality guidelines (SQGs) indicating adverse effect on adjacent biota. Both index of geoaccumulation (Igeo) and enrichment factor (EF) also indicated anthropogenic contamination. Based on high (>1) translocation factor (TF) and bioconcentration factor (BCF) values Sonneratiaapetala and Avicenniaofficinalis could be considered as potential accumulators, of trace metals.
authors.affiliation: Department of Marine Science, University of Calcutta, 35, Ballygunge Circular Road, Calcutta 700019, West Bengal, India. Electronic address: onlyrickey@hotmail.com.
authors.forename: Ranju
authors.initials: R
authors.lastname: Chowdhury
authors.affiliation: University of Trás-os-Montes e Alto Douro, UTAD, School of Life Sciences and the Environment, Quinta de Prados, 5000-801 Vila Real, Portugal; MARE - Marine and Environmental Sciences Centre, Faculty of Sciences and Technology, University of Coimbra, 3004-517 Coimbra, Portugal.
authors.forename: Paulo J C
authors.initials: PJC
authors.lastname: Favas
authors.affiliation: Centro Interdisciplinario de Investigaciones Estudios sobre Medio, Ambiente Desarrollo (CIIEMAD), Instituto Polit'ecnicoNacional (IPN), Calle de Junio de Barrio la Laguna Ticom'an C.P., Del. Gustavo A. Madero, Mexico, D.F., Mexico.
authors.forename: M P
authors.initials: MP
authors.lastname: Jonathan
authors.affiliation: Department of Biotechnology, Periyar University, Salem 636 011, Tamil Nadu, India.
authors.forename: Perumal
authors.initials: P
authors.lastname: Venkatachalam
authors.affiliation: ICAR-Indian Institute of Soil & Water Conservation, Fernhill, Udhagamandalam 643004, Tamil Nadu, India.
authors.forename: P
authors.initials: P
authors.lastname: Raja
authors.affiliation: Department of Marine Science, University of Calcutta, 35, Ballygunge Circular Road, Calcutta 700019, West Bengal, India.
authors.forename: Santosh Kumar
authors.initials: SK
authors.lastname: Sarkar
mesh_terms: D001673:Biodegradation, Environmental; D058448:Biota; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry*; D007194:India; D008628:Mercury / Q000378:metabolism; D008670:Metals / Q000378:metabolism*; D019216:Metals, Heavy / Q000032:analysis; D014131:Trace Elements / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000378:metabolism*; D053833:Wetlands
chemical_list: D008670:Metals; D019216:Metals, Heavy; D014131:Trace Elements; D014874:Water Pollutants, Chemical; D008628:Mercury
keywords: Mangrove; Phytoremediation; Sundarban mangrove wetland; Trace metals