Biologia, Sanitat i Medi Ambient: Envíos recientes
Mostrando ítems 441-460 de 874
Structural Diversity and Biological Potential of Alkaloids from the Genus Hippeastrum, Amaryllidaceae: an Update
The subfamily Amaryllidoideae, Amaryllidaceae, presents an exclusive group of structures known as Amaryllidaceae alkaloids, which have a broad spectrum of biological activities. These plants are classified into 59 genera, ...
Seroprevalence of canine Leishmania infantum infection in the Mediterranean region and identification of risk factors: The example of North-Eastern and Pyrenean areas of Spain
The Mediterranean basin is an endemic region for canine leishmaniosis (CanL), where it represents a major veterinary problem and raises human health concerns. However, the distribution of the disease is heterogeneous and ...
The Construction of an Environmentally Friendly Super-Secreting Strain of Bacillus subtilis through Systematic Modulation of Its Secretory Pathway Using the CRISPR-Cas9 System
Achieving commercially significant yields of recombinant proteins in Bacillus subtilis requires</p><p>the optimization of its protein production pathway, including transcription, translation, folding,</p><p>and secretion. ...
The striking and unexpected cytogenetic diversity of genus Tanacetum L. (Asteraceae): a cytometric and fluorescent in situ hybridisation study of Iranian taxa
Background: Although karyologically well studied, the genus Tanacetum (Asteraceae) is poorly known from the perspective of molecular cytogenetics. The prevalence of polyploidy, including odd ploidy warranted an extensive ...
Biochemical identification and numerical taxonomy of Aeromonas spp. isolated from environmental and clinical samples in Spain
<b>Aims:</b> To study the phenotypic characteristics of <i>Aeromonas</i> spp. from environmental and clinical samples in Spain and to cluster these strains by numerical taxonomy. <b>Methods and Results:</b> A collection ...
Development of diagnostics for Chagas disease: where should we put our limited resources?
According to the World Health Organization (WHO), one of the milestones set by the London Declaration for Chagas disease the interruption of Chagas disease transmission through blood transfusion in Latin America was achieved ...
Sobre Euphorbia baetica Boiss.
Euphorbia baetica Boiss., Cent. Euphorb.: 36 (1860) = Tithymalus baeticus (Boiss.) Samp. in Anais Fac. Sci. Porto 17:46 (1931) = E. trinervia Boiss., Elench. Pl. Nov.: 82 (1838), non E. trinervia Schum., Beskr. Guin. pl.: ...
Testing parasite 'intimacy': the whipworm Trichuris muris in the European house mouse hybrid zone.
Host-parasite interaction studies across hybrid zones often focus on host genetic variation, treating parasites as homogeneous. 'Intimately' associated hosts and parasites might be expected to show similar patterns of ...
Chagas Disease among the Latin American Adult population attending in a primary care center in Barcelona, Spain
Background/Aims: The epidemiology of Chagas disease, until recently confined to areas of continental Latin America, has undergone considerable changes in recent decades due to migration to other parts of the world, including ...
Aeromonas surface glucan attached throught the O-antigen ligase represents a new way to obtain UDP-Glucose
We previously reported that A. hydrophila GalU mutants were still able to produce UDP-glucose introduced as a glucose residue in their lipopolysaccharide core. In this study, we found the unique origin of this UDP-glucose ...
Exopolysaccharide ID1 Improves Post-Warming Outcomes after Vitrification of In Vitro-Produced Bovine Embryos
This study aimed to assess the cryoprotectant role of exopolysaccharide (EPS) ID1, produced by Antarctic Pseudomonas sp., in the vitrification of in vitro-produced (IVP) bovine embryos. IVP day 7 (D7) and day 8 (D8) expanded ...
Secondary metabolites from a Streptomyces strain isolated from Livingston Island, Antarctica
The producing strain Streptomyces sp. 1010 was isolated from a shallow sea sediment from the region of Livingston Island, Antarctica. From the culture broth of this strain naturally active secondary metabolites were isolated ...
The Epigenetic Regulation in Plant Specialized Metabolism: DNA Methylation Limits Paclitaxel in vitro Biotechnological Production
Environmental conditions are key factors in the modulation of the epigenetic mechanisms regulating gene expression in plants. Specifically, the maintenance of cell cultures in optimal in vitro conditions alters methylation ...
Sobre una Rodoficea parasita de Gelidiaceas
En este trabajo se hace un estudio de una Rodofícea parásita, encontrada sobre Gelidium cantabricum Seoane-Camba y Gelidium sesquipedale (Clemente) Thuret. Por sus características generales atribuímos esta planta al género ...
L'esperó de Bolòs, retrobat cent anys després
L'esperó de Bolòs (Delphinium bolosii, C. Blanché & Molero) és una ranunculàcia endèmica de Catalunya, amenaçada i coneguda tan sols a dues zones: el congost del Segre (prop d'Artesa de Segre, al Prepirineu) i les rodalies ...
Estudio del contenido polinico de la atmosfera de Barcelona segun un nuevo metodo de filtracion
Descripción de una nueva técnica de captación de polen atmosférico y su aplicación en el estudio del contenido polínico de la atmósfera de Barcelona durante el año 1981. Esta nueva técnica de captación se basa en la ...
Alkaloid Composition and Biological Activities of the Amaryllidaceae Species <i>Ismene amancaes</i> (Ker Gawl.) Herb.
Natural products have always played a significant role in the search for new drugs. One of the most relevant alkaloid-containing plant groups is the Amaryllidaceae family, a source of exclusive structures with a wide variety ...
Viability qPCR, a new tool for Legionella risk management
Background Viability quantitative Polymerase Chain Reaction (v-qPCR) is a recent analytical approach for only detecting live microorganisms by DNA amplification-based methods This approach is based on the use of a reagent ...
