40 documents found, page 1 of 4
Bacterioplankton Community Diversity of a Portuguese Aquifer System (Maciço Cal...
de Figueiredo, Daniela R.; Condesso de Melo, Maria T. Condesso de; Saraiva, Pedro P.; Oliveira, Joana; Gonçalves, Ana M. M.; Sofia Reboleira, AnaClimate change may increase the vulnerability of aquifers to contamination through extreme precipitation and extended drought periods. Therefore, the understanding of groundwater ecosystem dynamics is crucial, with bacterial assemblages playing a major role in biogeochemical cycles. The present research describes a geospatial study targeting the bacterial community structure of groundwaters from the largest kar...
Bacterioplankton Community Diversity of a Portuguese Aquifer System (Maciço Cal...
de Figueiredo, Daniela R.; Condesso de Melo, Maria T.; Saraiva, Pedro P.; Oliveira, Joana; Gonçalves, Ana M. M.; Sofia Reboleira, AnaClimate change may increase the vulnerability of aquifers to contamination through extreme precipitation and extended drought periods. Therefore, the understanding of groundwater ecosystem dynamics is crucial, with bacterial assemblages playing a major role in biogeochemical cycles. The present research describes a geospatial study targeting the bacterial community structure of groundwaters from the largest kar...
An Overview on Antimicrobial Potential of Edible Terrestrial Plants and Marine ...
Lomartire, Silvia; Gonçalves, Ana M. M.Antibiotics are used to prevent and treat bacterial infections. After a prolonged use of antibiotics, it may happen that bacteria adapt to their presence, developing antibiotic resistance and bringing up health complications. Nowadays, antibiotic resistance is one of the biggest threats to global health and food security; therefore, scientists have been searching for new classes of antibiotic compounds which na...
The Lethal and Sub-Lethal Effects of Fluorinated and Copper-Based Pesticides-A ...
Mesquita, Andreia F; Gonçalves, Fernando J M; Gonçalves, Ana M. M.In recent decades, pollution levels have increased, mainly as a result of the intensive anthropogenic activities such industrial development, intensive agricultural practices, among others. The impact of metals and organic contaminants is, nowadays, a great concern to the scientific and political communities. Copper compounds are the main sold pesticides in Europe, as well as herbicides, including glyphosate. D...
Marine Macroalgae Polyphenols as Potential Neuroprotective Antioxidants in Neur...
Lomartire, Silvia; Gonçalves, Ana M. M.Polyphenols are beneficial natural compounds with antioxidant properties that have recently gain a lot of interest for their potential therapeutic applications. Marine polyphenols derived from marine macroalgae have been discovered to possess interesting antioxidant properties; therefore, these compounds can be included in several areas of drug development. Authors have considered the use of polyphenol extracts...
Do Freshwater and Marine Bivalves Differ in Their Response to Wildfire Ash? Eff...
Jesus, Fátima; Mesquita, Filipa; Virumbrales Aldama, Elisa; Marques, Ana; Gonçalves, Ana M. M.; Magalhães, Luísa; Nogueira, António J. A.; Ré, AnaWildfires constitute a source of contamination to both freshwater and marine ecosystems. This study aimed to compare the antioxidant defense response of the freshwater clam Corbicula fluminea and the marine cockle (Cerastoderma edule) to wildfire ash exposure and the concomitant metal body burden. Organisms were exposed to different concentrations (0%, 12.5%, 25%, 50%, and 100%) of aqueous extracts of Eucalypt ...
Effects of Inorganic and Organic Pollutants on the Biomarkers' Response of Cera...
Mesquita, Andreia F; Gonçalves, Fernando J M; Gonçalves, Ana M. M.Currently, there is increased chemical pollution, and climate change is a major concern to scientific, political and social communities globally. Marine systems are very susceptible to changes, and considering the ecological and economic roles of bivalve species, like Cerastoderma edule, studies evaluating the effects of both stressors are of great importance. This study intends to (a) determine the toxicity of...
Algal Phycocolloids: Bioactivities and Pharmaceutical Applications
Lomartire, Silvia; Gonçalves, Ana M. M.Seaweeds are abundant sources of diverse bioactive compounds with various properties and mechanisms of action. These compounds offer protective effects, high nutritional value, and numerous health benefits. Seaweeds are versatile natural sources of metabolites applicable in the production of healthy food, pharmaceuticals, cosmetics, and fertilizers. Their biological compounds make them promising sources for bio...
Impacts of low concentrations of nanoplastics on leaf litter decomposition and ...
Sahadevan, Seena; Gutierrez, Irene Bermudez; Barros, Juliana; Nunes, Cláudia; Marques, João Carlos; Kumar, Santosh; Gonçalves, Ana M. M.In forested streams, leaf litter decomposition is a vital ecosystem process, governed primarily by aquatic hyphomycetes. These fungi are crucial mediators of nutrients and energy to invertebrates and higher trophic levels. Very little information is available on the impact of low concentrations of different sizes of nanoplastic particles (NPPs) on leaf litter decomposition and aquatic hyphomycetes communities. ...
A Comparative Study of the Fatty Acids and Monosaccharides of Wild and Cultivat...
García-Poza, Sara; Morais, Tiago; Leandro, Adriana; Cotas, João; Marques, João Carlos; Pereira, Leonel; Gonçalves, Ana M. M.There is a need to find new possible raw food sources with interesting nutritional values. One of the most unexploited sources are seaweeds. Thus, Ulva sp. is a green edible seaweed that shows a high growth rate in nature and can support drastic abiotic changes, such as temperature and salinity. This work aims to determine the main nutritional compounds, fatty acids (FAs) and monosaccharides profiles of Ulva sp...