13 documents found, page 1 of 2
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...
The use of chitosan oligosaccharide to improve artemisinin yield in well-watere...
García-García, Ana L.; Matos, Ana Rita; Feijão, Eduardo; Carvalho, Ricardo Cruz de; Boto, Alicia; Silva, Jorge Marques da; Jiménez-Arias, DavidIntroduction: Artemisinin is a secondary metabolite well-known for its use in the treatment of malaria. It also displays other antimicrobial activities which further increase its interest. At present, Artemisia annua is the sole commercial source of the substance, and its production is limited, leading to a global deficit in supply. Furthermore, the cultivation of A. annua is being threatened by climate change....
Effects of glyphosate-based herbicide on primary production and physiological f...
Carvalho, Ricardo Cruz de; Feijão, Eduardo; Matos, Ana Rita; Cabrita, Maria Teresa; Utkin, Andrei B.; Novais, Sara C.; Lemos, Marco F.L.The use of glyphosate-based herbicides (GBHs) worldwide has increased exponentially over the last two decades increasing the environmental risk to marine and coastal habitats. The present study investigated the effects of GBHs at environmentally relevant concentrations (0, 10, 50, 100, 250, and 500 ug.L-1) on the physiology and biochemistry (photosynthesis, pigment, and lipid composition, antioxidative systems ...
Effect biomarkers of the widespread antimicrobial triclosan in a marine model d...
Duarte, Bernardo; Feijão, Eduardo; Carvalho, Ricardo Cruz de; Matos, Ana Rita; Cabrita, Maria Teresa; Novais, Sara C.; Moutinho, ArianaThe present-day COVID-19 pandemic has led to the increasing daily use of antimicrobials worldwide. Triclosan is a manmade disinfectant chemical used in several consumer healthcare products, and thus frequently detected in surface waters. In the present work, we aimed to evaluate the effect of triclosan on diatom cell photophysiology, fatty acid profiles, and oxidative stress biomarkers, using the diatom Phaeoda...
Fluoxetine induces photochemistry-derived oxidative stress on Ulva lactuca
Feijão, Eduardo; Carvalho, Ricardo Cruz de; Duarte, Irina A.; Matos, Ana Rita; Cabrita, Maria Teresa; Utkin, Andrei B.; Caçador, IsabelEmerging pollutants impose a high degree of stress on marine ecosystems, compromising valuable resources, the planet and human health. Pharmaceutical residues often reachmarine ecosystems, and their input is directly related to human activities. Fluoxetine is an antidepressant, and one of the most prescribed selective serotonin reuptake inhibitors globally and has been detected in aquatic ecosystems in concentr...
Unlocking Kautsky’s dark box: Development of an optical toxicity classification...
Duarte, Bernardo; Feijão, Eduardo; Carvalho, Ricardo Cruz de; Franzitta, Marco; Marques, João Carlos; Caçador, Maria Isabel ViolanteChlorophyll a induction curves, or Kautsky curves, have been extensively used to study physiological stress conditions in phototrophic organisms, with the analysis of several derived parameters. Nevertheless, these variables use only about 10 % of the information comprised in the complete Kautsky curve dataset, leaving 90 % of the photochemical data within an underutilized dark box, that is not translated into ...
Are biocrusts and xerophytic vegetation a viable green roof typology in a Medit...
Rocha, Bernardo; Paço, Teresa; Luz, Ana Catarina; Palha, Paulo; Milliken, Sarah; Kotzen, Benzion; Branquinho, Cristina; Pinho, PedroGreen roofs can be an innovative and effective way of mitigating the environmental impact of urbanization by providing several important ecosystem services. However, it is known that the performance of green roofs varies depending on the type of vegetation and, in drier climates, without resorting to irrigation, these are limited to xerophytic plant species and biocrusts. The aim of this research was therefore ...
Optimising artificial moss growth for environmental studies in the Mediterranea...
Varela, Zulema; Real, Carlos; Branquinho, Cristina; Paço, Teresa; Carvalho, Ricardo Cruz deBryophytes are poikilohydric organisms that play a key role in ecosystems, while some of them are also resistant to drought and environmental disturbances but present a slow growth rate. Moss culture in the laboratory can be a very useful tool for ecological restoration or the development of urban green spaces (roof and wall) in the Mediterranean region. Therefore, we aim to: (i) determine the optimal culture c...
Potential of Asparagopsis armata as a biopesticide for weed control under an in...
Duarte, Bernardo; Carreiras, João; Feijão, Eduardo; Carvalho, Ricardo Cruz de; Matos, Ana Rita; Fonseca, Vanessa F.; Novais, Sara C.; Lemos, Marco F. L.Marine macroalgae have been increasingly targeted as a source of bioactive compounds to be used in several areas, such as biopesticides. When harvesting invasive species, such as Asparagopsis armata, for this purpose, there is a two-folded opportunity: acquiring these biomolecules from a low-cost resource and controlling its spreading and impacts. The secondary metabolites in this seaweed’s exudate have been sh...
Effects of propranolol on growth, lipids and energy metabolism and oxidative st...
Duarte, Bernardo; Feijão, Eduardo; Carvalho, Ricardo Cruz de; Duarte, Irina A.; Silva, Marisa; Matos, Ana Rita; Cabrita, Maria Teresa; Novais, Sara C.Present demographic trends suggest a rise in the contributions of human pharmaceuticals into coastal ecosystems, underpinning an increasing demand to evaluate the ecotoxicological effects and implications of drug residues in marine risk assessments. Propranolol, a non-selective B-adrenoceptor blocker, is used worldwide to treat high blood pressure conditions and other related cardiovascular conditions. Although...