20 documents found, page 1 of 2
Unveiling of beneficial bacteria in Douro Vineyards
Erbiai, El Hadi; Alves, Fernando; Marques, GuilherminaMicrobial biodiversity in soil vineyards is a key determinant of grapevine (Vitis vinifera L.) growth and wine quality. Vineyards are subject to many pests and fungal pathogens responsible for significant losses in the wine sector. Recently, beneficial bacteria have received increasing attention as a promising sustainable alternative to chemical fertilizers and pesticides. This work aimed to isolate and charact...
Diversity of Entomopathogenic Fungi in vineyard soils in Portugal
Bashir, Sana; Erbiai, El Hadi; Marques, GuilherminaEntomopathogenic fungi (EPF) are important parasitic microorganisms of soil-dwelling insect pests, playing an important role in the dynamics of insect populations in agricultural soils. The increased global demand for sustainable grapevine cultivation and pest control has highlighted the need for a better understanding of these naturally occurring antagonists. To improve the efficacy of the EPF as microbial ins...
Antifungal activity of plant waste extracts against phytopathogenic fungi: Alli...
Teixeira, Ana; Sánchez-Hernández, Eva; Noversa, João; Cunha, Ana; Cortez, Isabel; Marques, Guilhermina; Martín-Ramos, PabloThe harmful effect of synthetic fungicides on the environment and the development of resistance by fungi raises concerns about their security and future efficacy. In this work, we investi gated plant by-products with the antifungal activity that could be safe alternatives to conventional fungicides. The in vitro antifungal potential of plant by-product extracts showed that garlic peel extract (GPE) was the most...
Bioactive polysaccharides from medicinal mushrooms: A review on their isolation...
Garcia, Juliana; Rodrigues, Francisca; Saavedra, Maria José; Nunes, Fernando M.; Marques, GuilherminaMushrooms either alone or in combination with conventional cancer treatment have been enhanced the efficacy of chemotherapy and radiotherapy improving the patients' quality of life. These therapy effects have been attributed to polysaccharides; the most potent compounds found in the fungi kingdom. Due to their wide range of biological activity and the backbone of glucose residues linked by β-(1 → 3)-glycosidic ...
Antimicrobial, Antibiofilm, and Antioxidant Properties of Boletus edulis and Ne...
Garcia, Juliana; Rodrigues, Francisca; Castro, Flávia; Aires, Alfredo; Marques, Guilhermina; Saavedra, Maria JoséMultidrug-resistant ESKAPE pathogens (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species) has become the most recurrent global cause of skin and soft-tissue infections, belonging to the WHO priority pathogens list. Successful therapy remains challenging and entails the assessment of novel and successful antibiotics. In th...
Comparative antioxidant and antimicrobial properties of Lentinula edodes Donko ...
Garcia, Juliana; Afonso, Ana Cristina; Fernandes, Conceição; Nunes, Fernando M.; Marques, Guilhermina; Saavedra, Maria JoséThe problematic increase in multidrug-resistant bacteria translates into the urgent need to discover novel and effective antimicrobial substances. Herein, mushrooms could be a promising alternative of natural source of new antimicrobials. The present work aimed to compare the phytochemical composition and antimicrobial activity of methanol and aqueous crude extracts of Lentinula edodes var. Koshin and Donko. Di...
Promastigotes of Leishmania spp. developing in human bone marrow in vitro
Barros Pinto, Marco P.; Marques, Guilhermina; Cristino, José MeloA 39-year-old woman with human immunodeficiency virus (HIV) infection presented with severe asthenia, abdominal painand fever of several weeks duration. Physical examination revealed hepatomegaly that was later confirmed by imaging (nosplenomegaly was observed). Leishmaniasis was suspected and abone marrow aspiration was performed. The sample was col-lected in ethylenediamine tetra-acetic acid and an immediatebon...
Antimicrobial and antioxidant activities of aqueous extracts of Lentinula edode...
Afonso, Ana Cristina; Fernandes, Conceição; Garcia, Juliana; Marques, Guilhermina; Nunes, Fernando M.; Saavedra, Maria JoséAntimicrobial resistance is recognizes by the WHO as a serious Public Health problem, representing a global challenge for medicine.
Phenolic compounds and antimicrobial activity of edible mushrooms extracts agai...
Garcia, Juliana; Reis, Sara; Afonso, Ana Cristina; Nunes, Fernando M.; Marques, Guilhermina; Fernandes, Conceição; Saavedra, Maria JoséPseudomonas aeruginosa is a leading cause of nasocomial infections and is responsible for 10% of all hospital-acquired infections belonging to the critical and high WHO global priority list of antibiotic-resistant bacteria.
Phaseolus vulgaris L. as a functional food for aging protection
Santos, Eunice; Marques, Guilhermina; Lino-Neto, T.The common bean (Phaseolus vulgaris L.) is the most consumed legume and the major protein source for poor populations, especially in developing Afro-Asian countries. Common bean has a high nutritional value, being rich in protein, carbohydrates, essential fatty acids, vitamins, minerals, and fibers. Besides these nutrients, common bean is also enriched in bioactive compounds, such as polyphenols, mainly flavono...