RT info:eu-repo/semantics/article
T1 Phytostabilization of metal(loid)s by ten emergent macrophytes following a 90-day exposure to industrially contaminated groundwater
A1 Velasco Arroyo, Blanca
A1 Curiel Alegre, Sandra
A1 Khan, Aqib Hassan Ali
A1 Rumbo Lorenzo, Carlos
A1 Pérez Alonso, Daniel
A1 Rad Moradillo, Juan Carlos
A1 De Wilde, Herwig
A1 Pérez de Mora, Alfredo
A1 Barros García, Rocío
K1 Rhizostabilization
K1 Emergent macrophyte
K1 Groundwater
K1 Metal
K1 Metalloid
K1 Plant growth promoting bacteria
K1 Biotecnología
K1 Biotechnology
K1 Biología molecular
K1 Molecular biology
AB Better understanding of macrophyte tolerance under long exposure times in real environmental matrices is crucial for phytoremediation and phytoattenuation strategies for aquatic systems. The metal(loid) attenuation ability of 10 emergent macrophyte species (Carex riparia, Cyperus longus, Cyperus rotundus, Iris pseudacorus, Juncus effusus, Lythrum salicaria, Menta aquatica, Phragmites australis, Scirpus holoschoenus, and Typha angustifolia) was investigated using real groundwater from an industrial site, over a 90-day exposure period. A “phytobial” treatment was included, with 3 plant growth-promoting rhizobacterial strains. Plants exposed to the polluted water generally showed similar or reduced aerial biomass compared to the controls, except for C. riparia. This species, along with M. aquatica, exhibited improved biomass after bioaugmentation. Phytoremediation mechanisms accounted for more than 60% of As, Cd, Cu, Ni, and Pb removal, whilst abiotic mechanisms contributed to ∼80% removal of Fe and Zn. Concentrations of metal(loid)s in the roots were generally between 10–100 times higher than in the aerial parts. The macrophytes in this work can be considered “underground attenuators”, more appropriate for rhizostabilization strategies, especially L. salicaria, M. aquatica, S. holoschoenus, and T. angustifolia. For I. pseudacorus, C. longus, and C. riparia; harvesting the aerial parts could be a complementary phytoextraction approach to further remove Pb and Zn. Of all the plants, S. holoschoenus showed the best balance between biomass production and uptake of multiple metal(loid)s. Results also suggest that multiple phytostrategies may be possible for the same plant depending on the final remedial aim. Phytobial approaches need to be further assessed for each macrophyte species.
PB Elsevier
SN 1871-6784
YR 2024
FD 2024-03-25
LK http://hdl.handle.net/10259/9292
UL http://hdl.handle.net/10259/9292
LA eng
NO This work has been funded by the GREENER project of the European Union's Horizon 2020 research and innovation program (Grant Agreement No. 826312). S. Curiel-Alegre pre-doctoral contract was funded by Junta de Castilla y León (ORDEN EDU/1508/2020, de 15 de diciembre).
DS Repositorio Institucional de la Universidad de Burgos
RD 23-nov-2024