Biologia, Sanitat i Medi Ambient: Enviaments recents
Ara mostrant els elements 301-320 de 874
Gegants nans
La major part dels éssers vius són microorganismes, és a dir, organismes invisibles a l'ull nu. Tradicionalment, s'han definit com a organismes tan petits que només són visibles amb un microscopi. El límit de resolució de ...
Experimental evidence of antimicrobial activity in Antarctic seaweeds: ecological role and antibiotic potential
Seaweeds contain a wide range of secondary metabolites which serve multiple functions, including chemical and ecological mediation with microorganisms. Moreover, owing to their diverse bioactivity, including their antibiotic ...
Spermiogenesis and spermatozoon ultrastructure of the dilepidid cestode Molluscotaenia crassiscolex (von Linstow, 1890), an intestinal parasite of the common shrew Sorex araneus
Spermiogenesis in Molluscotaenia crassiscolex begins with the formation of a differentiation zone containing two centrioles. One of the centrioles develops a flagellum directly into the cytoplasmic extension. The nucleus ...
The long-term effects of introducing the 5E model of instruction on students' conceptual learning
The effectiveness of the 5E model has been supported by research in schools in recent years, although its efficacy has rarely been assessed in the long term to avoid novelty effects and to consider the impact of the usual ...
Mapas de distribución de algas marinas de la Península Ibérica e Islas Baleares. VII. Cystoseira C. Agardh: (Grupo C. baccata) y Sargassum C. Agardh (S. muticum y S. vulgare)
[spa] Se presentan los mapas de distribución en la Península Ibérica e Islas Baleares de una especie del género Cystoseira C. Agardh (C. baccata [S.G. Gmelin] Silva) y de dos especies del género Sargassum C. Agardh (S. ...
Crystallization and resolution of the lipoxygenase of Pseudomonas aeruginosa 42A2 and phylogenetic study of the subfamilies of the lipoxygenases
Podeu consultar el llibre complet a: http://hdl.handle.net/2445/32392
Phylogenetic triangulation: Using predator-prey-parasite interactions to infer population history from partial genetic information
Phylogeographic studies, which infer population history and dispersal movements from intra-specific spatial genetic variation, require expensive and time-consuming analyses that are not always feasible, especially in the ...
Amino-acid-based surfactants: New antimicrobial agents
The rapid increase of drug resistant bacteria makes necessary the development of new antimicrobial agents. Synthetic amino acid-based surfactants constitute a promising alternative to conventional antimicrobial compounds ...
<i>Marinobacter guineae</i> sp. nov., a novel moderately halophilic bacterium from an Antarctic environment
Two Gram-negative, cold-adapted, moderately halophilic, aerobic bacteria, designated strains M3B(T) and M3T, were isolated from marine sediment collected from the South Shetland Islands, Antarctica. The organisms were ...
Valerianella orientalis (Schlecht.) Boiss. et Bal. in Boiss., novedad para la flora espaÑola.
Se cita por primera vez en España Valerianella orientalis (Schlecht.) Boiss. & Bal. in Boiss. Esta planta, cuya área de distribución geográfica conocida se extiende por Oriente medio y Grecia oriental, fué recolectada en ...
Biotic Elicitors in Adventitious and Hairy Root Cultures: A Review from 2010 to 2022
One of the aims of plant in vitro culture is to produce secondary plant metabolites using plant cells and organ cultures, such as cell suspensions, adventitious, and hairy roots (among others). In cases where the biosynthesis ...
Phytosterol metabolism in plant positive-strand RNA virus replication
The genome of most plant viruses consists of a single positive-strand of RNA (+ ssRNA). Successful replication of these viruses is fully dependent on the endomembrane system of the infected cells, which experiences a massive ...
The reference strain Aeromonas hydrophicla CIP 57.50 should be reclassified as Aeromonas salmonicida CIP 57.50
The use of reference strains is a critical element for the quality control of different assays, from the development of molecular methods to the evaluation of antimicrobial activities. Most of the strains used in these ...
Development of a strategy for the administration of praziquantel to the terrestrial edible snail Cornu aspersum parasitized by Brachylaima sp. metacercariae
Podeu consultar el llibre complet a: http://hdl.handle.net/2445/120717
Identification of defensin-encoding genes of Picea glauca: characterization of PgD5, a conserved spruce defensin with strong antifungal activity
Background: Plant defensins represent a major innate immune protein superfamily that displays strong inhibitory effects on filamentous fungi. The total number of plant defensins in a conifer species is unknown since there ...
In Memoriam: Juan Antonio Seoane Camba
Juan Antonio Seoane Camba ens va deixar el 21 de setembre passat a l'edat de 84 anys. Va començar els estudis universitaris a la Universidad de Santiago de Compostela amb la intenció de cursar medicina, però ben aviat es ...
Sobre la necesidad de un libro rojo «moderno» para China
Los llamados «libros rojos» se cuentan hoy en día entre las mejores y más ampliamente utilizadas herramientas para la identificación de plantas vasculares sometidas a una situación de riesgo, así como para la priorización ...
Genetic transformation of Artemisia carvifolia Buch with rol genes enhances artemisinin accumulation
The potent antimalarial drug artemisinin has a high cost, since its only viable source to date is Artemisia annua (0.01<br>0.8% DW). There is therefore an urgent need to design new strate- gies to increase its production ...
Leishmania infantum asymptomatic infection in inflammatory bowel disease patients under anti-TNF therapy
Background: In recent years anti-TNF therapy has been associated with leishmaniasis in immunocompromised patients from endemic areas. Nevertheless, data on asymptomatic Leishmania infection in such patients is scarce. The ...
