caa a22 4500 445892285 CHVBK 20180317145620.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10750-011-0731-3 doi (NATIONALLICENCE)springer-10.1007/s10750-011-0731-3 The role of organic acids in assisted phytoremediation processes of salt marsh sediments [Elektronische Daten] [B. Duarte, J. Freitas, I. Caçador] Some plants have high ability to absorb heavy metals in high concentrations. In this study, Spartina maritima was tested in conjunction with low molecular weight organic acids (LMWOA), in order to evaluate the possible use of this plant in phytoremediation processes in salt marshes. Three different LMWOA (citric acid, malic acid and acetic acid) were applied to contaminated intact cores of S. maritima colonized sediment and several heavy metals (Cd, Zn, Pb, Cu, Cr and Ni) were analyzed in sediment and plant parts. Acetic acid application proved to be the most efficient, enhancing greatly the uptake of all metals analyzed. Citric acid also showed good results, while malic acid proved to be very inefficient in most of the cases. The highest enhancement was observed for Cr with a 10-fold increase of the uptake upon application of acetic acid, while improving the Pb uptake proved to be the most difficult, probably due to its low solubility. Springer Science+Business Media B.V., 2011 Phytoremediation nationallicence Spartina maritima nationallicence LMWOA nationallicence Heavy metals nationallicence Duarte B. Centro de Oceanografia, Instituto de Oceanografia, Campo Grande, 1749-1016, Lisbon, Portugal aut Freitas J. Centro de Oceanografia, Instituto de Oceanografia, Campo Grande, 1749-1016, Lisbon, Portugal aut Caçador I. Centro de Oceanografia, Instituto de Oceanografia, Campo Grande, 1749-1016, Lisbon, Portugal aut Hydrobiologia Springer Netherlands 674/1(2011-10-01), 169-177 0018-8158 674:1<169 2011 674 10750 https://doi.org/10.1007/s10750-011-0731-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10750-011-0731-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Duarte B. Centro de Oceanografia, Instituto de Oceanografia, Campo Grande, 1749-1016, Lisbon, Portugal aut NATIONALLICENCE 700 1- Freitas J. Centro de Oceanografia, Instituto de Oceanografia, Campo Grande, 1749-1016, Lisbon, Portugal aut NATIONALLICENCE 700 1- Caçador I. Centro de Oceanografia, Instituto de Oceanografia, Campo Grande, 1749-1016, Lisbon, Portugal aut NATIONALLICENCE 773 0- Hydrobiologia Springer Netherlands 674/1(2011-10-01), 169-177 0018-8158 674:1<169 2011 674 10750 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer