34 documents found, page 1 of 4
Exploring the possible link between fluoride sensitivity and bacterial defluori...
Maia, Tiago; Carvalho, Maria F.; Alexandrino, Diogo A. M.; Alexandrino, DiogoFluoorganic compounds are ubiquitous environmental pollutants due to their widespread use and high environmental persistence, mostly attributed to the stability of their carbon-fluoride bonds. The biotransformation of these compounds has been observed in some microorganisms, but defluorination (cleavage of carbon-fluorine bonds) remains the limiting step. Intracellular accumulation of fluoride occurs during mic...
Unveiling the culturable and non‐culturable actinobacterial diversity in two ma...
Girão, Mariana; Alexandrino, Diogo A. M.; Cao, Weiwei; Costa, Isabel; Jia, Zhongjun; Carvalho, Maria F.; Alexandrino, DiogoActinomycetota, associated with macroalgae, remains one of the least explored marine niches. The secondary metabolism of Actinomycetota, the primary microbial source of compounds relevant to biotechnology, continues to drive research into the distribution, dynamics, and metabolome of these microorganisms. In this study, we employed a combination of traditional cultivation and metagenomic analysis to investigate...
Combined effects of temperature and dietary lipid level on body composition, gr...
Cardoso, Patrícia G.; Gonçalves, Odete; Cavalheri, Thais; Amorim, Vânia E.; Cao, Weiwei; Alexandrino, Diogo A. M.; Jia, Zhongjun; Carvalho, Maria F.The effects of increasing temperature and dietary lipid level on the body composition, growth performance, and freshness profile of the European seabass (Dicentrarchus labrax) were evaluated through a fish trial lasting 56 days. Findings demonstrated that fish reared at 24 °C presented a lower lipid level and a higher daily growth index than those reared at 20 °C. On the other hand, the sea bass condition index...
Impact of per- and polyfluorinated alkyl substances (PFAS) on the marine enviro...
Bilela, Lada Lukić; Matijošytė, Inga; Krutkevičius, Jokūbas; Alexandrino, Diogo A.M.; Safarik, Ivo; Burlakovs, Juris; Gaudêncio, Susana P.Per- and polyfluorinated alkyl substances (PFAS) have long been known for their detrimental effects on the ecosystems and living organisms; however the long-term impact on the marine environment is still insufficiently recognized. Based on PFAS persistence and bioaccumulation in the complex marine food network, adverse effects will be exacerbated by global processes such as climate change and synergies with oth...
Assembly of bacterial consortium for the biodegradation of PFAS and related sub...
Neves, David M. B.; Pinto, Ana Sofia; Mucha, Ana Paula; Almeida, C. Marisa R.; Alexandrino, Diogo A. M.; Carvalho, Maria F.; Alexandrino, DiogoPer- and polyfluoroalkyl substances (PFAS) are man-made chemicals with wide application in consumer products since the 1950s. A recent revision of the PFAS definition has also introduced several polyfluorinated pharmaceuticals and agrochemicals into this class, further exacerbating the urgency of any PFAS-related pollution scenario. Their many favourable properties, including improved persistence and lipophilic...
The essentials of Marine Biotechnology
Rotter, Ana; Barbier, Michéle; Bertoni, Francesco; Bones, Atle M.; Cancela, M. Leonor; Carlsson, Jens; Carvalho, Maria F.; Cegłowska, MartaCoastal countries have traditionally relied on the existing marine resources (e.g., fishing, food, transport, recreation, and tourism) as well as tried to support new economic endeavors (ocean energy, desalination for water supply, and seabed mining). Modern societies and lifestyle resulted in an increased demand for dietary diversity, better health and well-being, new biomedicines, natural cosmeceuticals, envi...
A new network for the advancement of marine biotechnology in Europe and beyond
Rotter, Ana; Bacu, Ariola; Barbier, Michèle; Bertoni, Francesco; Bones, Atle M.; Cancela, M. Leonor; Carlsson, Jens; Carvalho, Maria F.Marine organisms produce a vast diversity of metabolites with biological activities useful for humans, e.g., cytotoxic, antioxidant, anti-microbial, insecticidal, herbicidal, anticancer, pro-osteogenic and pro-regenerative, analgesic, anti-inflammatory, anticoagulant, cholesterol-lowering, nutritional, photoprotective, horticultural or other beneficial properties. These metabolites could help satisfy the increa...
Actinobacteria and cyanobacteria diversity in terrestrial Antarctic microenviro...
Rego, Adriana; Raio, Francisco; Martins, Teresa P.; Ribeiro, Hugo; Sousa, António G.G.; Séneca, Joana; Baptista, Mafalda S.; Lee, Charles K.Bacterial diversity from McMurdo Dry Valleys in Antarctica, the coldest desert on earth, has become more easily assessed with the development of High Throughput Sequencing (HTS) techniques. However, some of the diversity remains inaccessible by the power of sequencing. In this study, we combine cultivation and HTS techniques to survey actinobacteria and cyanobacteria diversity along different soil and endolithi...
Biodegradation of mono-, di- and trifluoroacetate by microbial cultures with di...
Alexandrino, Diogo A.M.; Ribeiro, Inês; Pinto, Luís M.; Cambra, Rafael; Oliveira, Rui S.; Pereira, Filipe; Carvalho, Maria F.This work focused on the biodegradation of three structurally related fluoroacetates (FAs), mono- (MFA), di- (DFA) and trifluoroacetate (TFA), using as microbial inocula samples collected from a site with a long history of industrial contamination and activated sludge obtained from a municipal wastewater treatment plant. Biodegradation experiments were carried out under different modes of substrate supplementat...
Seed coating with inocula of arbuscular mycorrhizal fungi and plant growth prom...
Rocha, Inês; Ma, Ying; Carvalho, Maria F.; Magalhães, Catarina; Janoušková, Martina; Vosátka, Miroslav; Freitas, Helena; Oliveira, Rui S.Arbuscular mycorrhizal (AM) fungi and plant growth-promoting rhizobacteria, responsible for enhancing plant nutrition, vigour and growth, may be used to reduce dosages of chemical fertilisers. Technologies that allow an economically viable and efficient application of these beneficial microbes in large scale agriculture must be studied. Seed coating is a potential delivery system for efficiently introducing min...