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Publication Type J
Authors Santos, M. S. S., C. A. Pedro, S. C. Goncalves and S. M. F. Ferreira
Title Phytoremediation of cadmium by the facultative halophyte plant Bolboschoenus maritimus (L.) Palla, at different salinities
Source Environmental Science and Pollution Research
Author Keywords Halophytes Cadmium Salt stress Atomic absorption Phytoremediation Tracemetals Greenhouse experiment Accumulator plant coastal lagoon abidos heavy-metals scirpus-maritimus salt marshes accumulation tolerance capacity growth water portugal
Abstract The cadmium phytoremediation capacity of the halophyte plant Bolboschoenus maritimus (L.) Palla and the influence of water salinity were assessed in a greenhouse experiment, in order to better understand the bioremediation capacity of this plant. Three concentrations of cadmium (0, 50 and 100 mu g l(-1)) and four salinity conditions (0, 5, 10 and 20) were chosen to evaluate the cadmium accumulation, in order to test these plants as a potential phytoremediation tool in brackish environments. The cadmium content in water and plants (underground organs, stems and leaves) was analysed with graphite furnace atomic absorption spectrometry. All the plants submitted to salinity 20 and in the three cadmium treatments died. The plants' survival was highest in the lowest salinities, where highest growth and biomasses were also obtained. The plants presented more cadmium content in the rhizomes, followed by stems and even less in leaves. The salt stress of the plants interfered with their cadmium accumulation capacity. The highest cadmium accumulation in the rhizomes occurred at salinity 0, while the salinities 0 and 5 were the most adequate for stems and leaves. The experiment pointed out that B. maritimus represents a good possible intervenient for cadmium bioremediation in freshwater and low salinity brackish water environments, but its use is limited in the habitats of higher salinity.
Author Address [Santos, Marcia S. S.; Pedro, Carmen A.; Goncalves, Silvia C.; Ferreira, Susana M. F.] Polytech Inst Leiria, Marine Resources Res Grp, Sch Tourism & Maritime Technol, P-2520641 Peniche, Portugal. [Goncalves, Silvia C.] Univ Coimbra, Fac Sci & Technol, Dept Life Sci, MARE Marine & Environm Sci Ctr, P-3004517 Coimbra, Portugal. [Ferreira, Susana M. F.] Univ Coimbra, Dept Life Sci, CFE, P-3001401 Coimbra, Portugal. Goncalves, SC (reprint author), Polytech Inst Leiria, Marine Resources Res Grp, Sch Tourism & Maritime Technol, Campus 4,Santuario Sra dos Remedios, P-2520641 Peniche, Portugal. scgoncalves@ipleiria.pt; susana.ferreira@ipleiria.pt
ISSN 0944-1344
ISBN 0944-1344
Publication Date Oct
Year Published 2015
Volume 22
Issue 20
Beginning Page 15598-15609
Digital Object Identifier (DOI) 10.1007/s11356-015-4750-x
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