8 documents found, page 1 of 1
Cistus ladanifer metal uptake and physiological performance in biochar amended ...
Duarte, Bernardo; Pires, Vanessa; Carreiras, João; Carvalho, Ricardo Cruz de; Pereira, Manuel F.C.; Maurício, António M.; Martins-Dias, SuseteBiochar amendments are known to have a considerable influence on phytoremediation processes. Considering this, in the present work, we aimed to evaluate the effect of biochar amendments in metal-contaminated mine soils focusing on the metal uptake by Cistus ladanifer and its physiological consequences. Plants were exposed to mine soils with different biochar supplementations and the plant's physiological perfor...
Assessment of tolerance to Lanthanum and Cerium in Helianthus Annuus Plant: Eff...
Dridi, Nesrine; Bouslimi, Houda; Brito, Pedro; Martins-Dias, Susete; Caçador, Isabel; Sleimi, Noomene; Ferreira, RenataRare earth elements (REEs) present a group of nonessential metals for the growth and development of plants. At high concentrations, they can induce internal stress and disturb the physiological and biochemical mechanisms in plants. The potential uptake of lanthanum (La) and cerium (Ce) by the horticultural plant Helianthus annuus and the effect of these elements on its growth, its absorption of macroelements, a...
Cerium uptake, translocation and toxicity in the salt marsh halophyte Halimione...
Brito, Pedro; Martins-Dias, Susete; Azevedo, Olga M.; Caetano, Miguel; Caçador, Isabel; Ferreira, RenataHalimione portulacoides plants were exposed to dissolved cerium (Ce) in a hydroponic medium for five days. Ce accumulation in plants followed the metal's increase in the medium although with a very low translocation factor (TF < 0.01) between roots and shoots. Ce median concentrations in roots were 586, 988 and 1103 μg/g (dry wt.), while in shoots the median values reached 1.9, 3.5 and 10.0 μg/g (dry wt.), for ...
Assessing local acid mine drainage impacts on natural regeneration-revegetation...
Pereira, Manuel F.; Magalhães, João P.; Maurício, António M.; Caçador, Isabel; Martins-Dias, Susete; Ferreira, RenataSão Domingos sulfide mine was shut down more than 50 years ago leaving behind eroded and depositional surfaces due to acid mine drainage (AMD). The aim of this study was to assess six selected sites subjected to AMD, considered phytotoxic regions characterized by vegetation scarcity. Two main criteria, nature and composition of soluble fractions and total chemistry of surficial products related to jarosites pre...
A quantitative proteomic approach to highlight Phragmites sp. adaptation mechan...
Roma-Rodrigues, C.; Davies, L. C.; Sá-Correia, I.; Martins-Dias, Susete; Ferreira, RenataPhragmites sp. is present worldwide in treatment wetlands though the mechanisms involved in the phytoremediation remain unclear. In this study a quantitative proteomic approach was used to study the prompt response and adaptation of Phragmites to the textile dyeing pollutant, Acid Orange 7 (AO7). Previously, it was demonstrated that AO7 could be successfully removed from wastewater and mineralized in a construc...
Purification of plant complex protein extracts in non-denaturing conditions by ...
Martins-Dias, Susete; Ferreira, RenataAn alternative approach for plant complex protein extracts pre-purification by in-solution isoelectric focusing in non-denaturing conditions is presented. The separation of biologically active proteins, in narrow ranges of isoelectric point (pI) was obtained by a modified OFFGEL electrophoresis. Two different water-soluble protein extracts from Phragmites leaves were fractionated into 24 fractions within a 3-10...
An integrated approach to energy production and nutrient recovery through anaer...
Crocamo, Angelo; Di Berardino, Santino; Di Giovanni, Raffaele; Fabbricino, Massimiliano; Martins-Dias, SuseteThis paper reports on experimental results used to verify the applicability of Vetiveria zizanoides (VZ) as a virtuous energetic crop. VZ produces biogas through its anaerobic digestion, and its nutrient content can be recovered through reuse, after digestion, as an agricultural amendment. Biomethanation tests were conducted with fresh and pretreated VZ, and the results of these tests were compared with those f...
Phragmites sp. physiological changes in a constructed wetland treating an efflu...
Ferreira, Renata Alexandra; Duarte, Joana Gouveia; Vergine, Pompilio; Antunes, Carlos D.; Freire, Filipe; Martins-Dias, SuseteThe role of Phragmites sp. in phytoremediation of wastewaters containing azo dyes is still, in many ways, at its initial stage of investigation. This plant response to the long-term exposure to a highly conjugated di-azo dye (Direct Red 81, DR81) was assessed using a vertical flow constructed wetland, at pilot scale. A reed bed fed with water was used as control. Changes in photosynthetic pigment content in res...