80 documents found, page 1 of 8
Does parental exposure to nanoplastics modulate the response of Hediste diversi...
Silva, M.S.S.; Oliveira, Miguel; Almeida, Helena; Vethaak, A. Dick; Martínez-Gómez, Concepción; Figueira, Etelvina; Pires, AdíliaPlastic pollution is a serious problem in aquatic systems throughout the world. Despite the increasing number of studies addressing the impact of macro- and microplastics on biota, there is still a significant knowledge gap regarding the effects of nanoplastics alone and in combination with other contaminants. Among the aquatic contaminants that may interact with nanoplastics is arsenic (As), a metalloid found ...
Effects of graphene oxide nanosheets in the polychaete Hediste diversicolor: be...
Pires, Adília; Figueira, Etelvina; Silva, M. S. S.; Sá, Carina; Marques, Paula A. A. P.Numerous applications exist for graphene-based materials, such as graphene oxide (GO) nanosheets. Increased concentrations of GO nanosheets in the environment have the potential to have a large negative effect on the aquatic environment, with consequences for benthic organisms, such as polychaetes. The polychaete Hediste diversicolor mobilises the sediments, hence altering the availability of contaminants and t...
A multifactorial approach to untangle graphene oxide (GO) nanosheets effects on...
Lopes, Tiago; Cruz, Catarina; Cardoso, Paulo; Pinto, Ricardo; Marques, Paula A. A. P.; Figueira, EtelvinaDrought is a limiting factor for agricultural productivity. Climate change threatens to expand the areas of the globe subjected to drought, as well as to increase the severity and duration of water shortage. Plant growth-promoting bacteria (PGPB) are widely studied and applied as biostimulants to increase plant production and to enhance tolerance to abiotic and biotic constraints. Besides PGPB, studies on the p...
Can ocean warming alter sub-lethal effects of antiepileptic and antihistaminic ...
Almeida, Ângela; Calisto, Vânia; Esteves, Valdemar I.; Schneider, Rudolf J.; Figueira, Etelvina; Soares, Amadeu M. V. M.; Freitas, RosaThe negative effects induced in marine organisms by Climate Change related abiotic factors consequences, namely ocean warming, are well-known. However, few works studied the combined impacts of ocean warming and contaminants, as pharmaceutical drugs. Carbamazepine (CBZ) and cetirizine (CTZ) occur in the marine environment, showing negative effects in marine organisms. This study aimed to evaluate the impacts of...
The role of temperature on the impact of remediated water towards marine organisms
Coppola, Francesca; Bessa, Ana; Henriques, Bruno; Russo, Tania; Soares, Amadeu M. V. M.; Figueira, Etelvina; Pereira, Eduarda; Marques, PaulaMarine organisms are frequently exposed to pollutants, including trace metals, derived from natural and anthropogenic activities. In order to prevent environmental pollution, di erent approaches have been applied to remove pollutants from waste water and avoid their discharge into aquatic systems. However, organisms in their natural aquatic environments are also exposed to physico-chemical changes derived from ...
Oxidative stress, metabolic and histopathological alterations in mussels expose...
Coppola, Francesca; Bessa, Ana; Henriques, Bruno; Russo, Tania; Soares, Amadeu M. V. M.; Figueira, Etelvina; Marques, Paula A. A. P.; Polese, GianlucaThe modern technology brought new engineering materials (e.g. nanostructured materials) with advantageous characteristics such as a high capacity to decontaminate water from pollutants (for example metal(loid)s). Among those innovative materials the synthesis of nanostructured materials (NSMs) based on graphene as graphene oxide (GO) functionalized with polyethyleneimine (GO-PEI) had a great success due to thei...
Do nanoplastics impact the ability of the polychaeta Hediste diversicolor to re...
Silva, M.S.S.; Oliveira, Miguel; Lopéz, Daniel; Martins, Manuel; Figueira, Etelvina; Pires, AdíliaFor decades the oceans have been a sink for plastic debris. Over the years several studies have been focused on the effects of macro- and microplastics on vertebrates, but few have had benthic invertebrates as their research subject or studied small-sized plastic particles of sizes below 100 nm. The aim of this study was to understand the effect of waterborne 100 nm polystyrene nanoplastics (PS NPs, 0.0005–5 mg...
Behavior and biochemical responses of the polychaeta Hediste diversicolor to po...
Silva, M.S.S.; Oliveira, Miguel; Valente, Pedro; Figueira, Etelvina; Martins, Manuel; Pires, AdíliaPlastic debris has been reaching the world's oceans since it started being used. Multiple studies have been addressing the effects of microplastics in various organisms but, despite the increased scientific awareness, there is still a significant gap in knowledge when it comes to small-sized plastic particles of sizes below 100 nm. The aim of this study was to understand the effect of waterborne 100 nm polystyr...
Can Palythoa cf. variabilis biochemical patterns be used to predict coral reef ...
Campos, Priscilla; Pires, Adília; Figueira, EtelvinaCoral reefs are one of the most diverse, complex and productive marine ecosystems on the planet. Global climate change and other anthropogenic impacts have had a strong impact on the equilibrium of these ecosystems and causing the denominated "coral reef crisis". One consequence of coral reef crisis is the phase shift in reef communities, where scleractinian corals responsible for the bioconstruction of the cor...
Airborne exposure of Rhizobium leguminosarum strain E20-8 to volatile monoterpe...
Sá, Carina; Matos, Diana; Pires, Adília; Cardoso, Paulo; Figueira, EtelvinaVolatile organic compounds (VOCs) are produced by plants, fungi, bacteria and animals. These compounds are metabolites originated mainly in catabolic reactions and can be involved in biological processes. In this study, the airborne effects of five monoterpenes (α-pinene, limonene, eucalyptol, linalool, and menthol) on the growth and oxidative status of the rhizobial strain Rhizobium leguminosarum E20-8 were st...