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Modelling Molecular and Inorganic Data of Amanita ponderosa Mushrooms using Art...
Salvador, Cátia; Martins, M. Rosário; Vicente, Henrique; Neves, José; Arteiro, José; Caldeira, A. TeresaAbstract Wild edible mushrooms Amanita ponderosa Malenc¸on and Heim are very appreciated in gastronomy, with high export potential. This species grows in some microclimates, namely in the southwest of the Iberian Peninsula. The results obtained demonstrate that A. ponderosa mushrooms showed different inorganic composition according to their habitat and the molecular data, obtained by M13-PCR, allowed to disting...
Molecular approach to characterize ectomycorrhizae fungi from Mediterranean pin...
Ragonezi, Carla; Caldeira, A. Teresa; Martins, M. Rosário; Salvador, Cátia; Santos-Silva, Celeste; Ganhão, Elsa; Klimaszewska, KrystynaStone pine (Pinus pinea L.), like other conifers, forms ectomycorrhizas (ECM), which have beneficial impact on plant growth in natural environments and forest ecosystems. An in vitro co-culture of stone pine microshoots with pure mycelia of isolated ECM sporocarps was used to overcome the root growth cessation not only in vitro but also to improve root development during acclimation phase. Pisolithus arhizus (S...
Prediction of bioactive compounds activity against wood contaminant fungi using...
Vicente, Henrique; Roseiro, José; Arteiro, José; Neves, José; Caldeira, A. TeresaBiopesticides based on natural endophytic bacteria to control plant diseases are an ecological alternative to the chemical treatments. Bacillus species produce a wide variety of metabolites with biological activity like iturinic lipopeptides. This work addresses the production of biopesticides based on natural endophytic bacteria, isolated from Quercus suber. Artificial Neural Networks were used to maximize the...
ENZYMATIC MONITORIZATION OF MURAL PAINTINGS BIODETERIORATION
Rosado, Tânia; Martins, M. Rosário; Pires, Margarida; Mirão, José; Candeias, A; Caldeira, A TeresaBiodeterioration of mural paintings by microorganisms is an important research field that needs novel approaches to fully understand the mechanisms and effects. In this work, the presence of microorganisms and their biological activity were investigated by extra and intracellular enzymatic monitorization. The enzymes arylsulphatase, β-glucosidase, dehydrogenase and phosphatase were used as biomarkers of the mic...
Combined characterisation and biodegradation assessment methodology of mural pa...
Rosado, T; Gil, M; Caldeira, A Teresa; Martins, M Rosario; Dias, C; Carvalho, L; Mirão, J; Candeias, A EThe aim of this work was the material characterisation of wall paintings and biodegradation assessment, including the analysis of microbial growth and the effect of microbial proliferation, in view of their conservation. The methodology was applied to the study of frescoes dated from 1531, located in the ancient parish church of Santo Aleixo, Southern Portugal. The combined use of optical microscopy, SEM-EDS an...
A multianalytical approach to investigate stone biodeterioration at a UNESCO wo...
Schiavon, N; De Caro, Tilde; Kiros, A; Caldeira, A Teresa; Parisi, I; Riccucci, C; Gigante, GiovanniA multianalytical approach combining Optical Microscopy (OM), Backscattered Variable Pressure Scanning Electron Microscopy + Energy Dispersive X-ray Spectroscopy (VP-BSEM + EDS), Powder X-ray Diffractometry (PXRD), Raman Spectroscopy, and Microbiological techniques has been applied to characterize decay products and processes occurring at the surface of two rockhewn churches (Bete Gyorgis and Bete Amanuel) at t...
Molecular evaluation of some Amanita ponderosa and fungal strains living in ass...
Salvador, C; Martins, M Rosário; Arteiro, J M; Caldeira, A TeresaAmanita ponderosa are wild edible mushrooms that grow only in some microclimates, particularly those in the southwestern part of the Iberian Peninsula. Due to the vast diversity of mushrooms in nature, as well as nutrient variability, which is highly dependent on soil type and environmental conditions, it is essential to be able to characterize fungal microbiota that lives in association with mushrooms and to d...
Protein-bound polysaccharides from Amanita ponderosa cultures: characterisation...
Nunes, Patricia; Salvador, Catia; Arteiro, J. M.; Martins, M. Rosário; Caldeira, A. TeresaIn recent years, protein-polysaccharide complexes extracted from mushrooms have received great attention from the scientific community, due to their medicinal properties, namely antioxidant, antitumor, antimicrobial, immunomodulatory, antiatherogenic and hypoglycaemic properties [1, 2]. The southern of Portugal, due to its Mediterranean climate and flora diversity, is a region with a high prevalence of wild edi...
Toxicological evaluation and hepatoprotective effect of Amanita ponderosa
Salvador, Cátia; Nunes, Patricia; Carvalho, Ana; Candeias, M. Fátima; Martins, M. Rosário; Caldeira, A. TeresaEdible mushrooms, moreover to their gastronomic characteristics, are a source of valuable nutrients and bioactive compounds with potential beneficial effects on human health. Currently mushrooms become attractive as functional foods due to medicinal properties and useful in preventing diseases shown antitumour and immunomodulating properties, cardioprotective, hepatoprotective, antibacterial, antiviral and anti...
Antioxidant properties of A. ponderosa cultures and antiproliferative effect ag...
Salvador, Cátia; Martins, M. Rosário; Duarte, M. Fátima; Caldeira, A. TeresaMushrooms are appreciated, not only for texture and flavor but also for their chemical and nutritional properties. They have been reported as therapeutic foods that are useful in preventing diseases such as hypertension, hypercholesterolemia and cancer. In fact, mushrooms have become attractive as functional foods and as a source of bioactive compounds because they are rich sources of antioxidant compounds such...
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