title: Temporal and physiological influence of the absorption of nutrients and toxic elements by Eichhornia crassipes.
abstract: Aquatic macrophytes are a very important subject of study due to their capacity to restore polluted aquatic environments as they need high nutrient concentrations to develop. The present study aims to determine their temporal and physiological influence on the amount of total nitrogen, gross protein, P, Cu, Ni, Co, Cd, Pb and Cr absorbed by Eichhornia crassipes (water hyacinth) in the River Apodi/Mossoró, RN, Brazil, identifying viable possibilities for the use of cultivated biomass. Results obtained from the parameters analyzed show that these substances are impacted by the temporality and physiology of Eichhornia crassipes. Leaves showed higher crude protein and macronutrients, while the content of micronutrients and toxic elements was higher in roots. It could, therefore, be utilized to improve water quality in the River Apodi/Mossoró.
authors.affiliation: Universidade Federal do Rio Grande do Norte-UFRN, Caixa Postal 1524-Campus Universitário Lagoa Nova, CEP 59.072-970, Natal, RN, Brazil. dffmquimica@hotmail.com.
authors.forename: Daniel Freitas Freire
authors.initials: DF
authors.lastname: Martins
authors.forename: Maria
authors.initials: M
authors.lastname: de Fátima Vitória de Moura
authors.forename: Maria Iracema
authors.initials: MI
authors.lastname: Bezerra Loiola
authors.forename: Luiz
authors.initials: L
authors.lastname: Di Souza
authors.forename: Káthia Maria
authors.initials: KM
authors.lastname: Barbosa E Silva
authors.forename: José
authors.initials: J
authors.lastname: Francismar de Medeiros
mesh_terms: D000042:Absorption; D001673:Biodegradation, Environmental; D018533:Biomass; D001938:Brazil; D031806:Eichhornia / Q000378:metabolism*; D008670:Metals / Q000378:metabolism*; D009584:Nitrogen / Q000378:metabolism*; D010940:Plant Proteins / Q000378:metabolism*; D045483:Rivers; D012621:Seasons; D014874:Water Pollutants, Chemical / Q000378:metabolism*
chemical_list: D008670:Metals; D010940:Plant Proteins; D014874:Water Pollutants, Chemical; D009584:Nitrogen