Biologia, Sanitat i Medi Ambient: Enviaments recents
Ara mostrant els elements 21-40 de 874
Biocompatible Catanionic Vesicles from Arginine-Based Surfactants: A New Strategy to Tune the Antimicrobial Activity and Cytotoxicity of Vesicular Systems
Their stability and low cost make catanionic vesicles suitable for application as drug delivery systems. In this work we prepared catanionic vesicles using biocompatible surfactants: two cationic arginine-based surfactants ...
Biosynthesis of panaxynol and panaxydol in Panax ginseng
The natural formation of the bioactive C17-polyacetylenes (−)-(R)-panaxynol and panaxydol was analyzed by 13C-labeling experiments. For this purpose, plants of Panax ginseng were supplied with 13CO2 under field conditions ...
Alguns interrogants sobre la conservació dels recursos naturals
L'augment del potencial tecnològic i del consum han fet veure que no té cap credibilitat la ideologia, molt estesa encara al començament del segle actual, segons la qual hom podria explotar els recursos naturals pràcticament ...
Morphologic and genetic characterization of Pterygodermatites (Mesopectines) valladaresi n. sp. (Nematoda, Rictulariidae), a parasite of the mouse Mus musculus (Rodentia, Muridae) from the Canary Islands (Spain)
A new rictulariid nematode Pterygodermatites (Mesopectines) valladaresi n. sp., parasite of the house mouse Mus musculus (Rodentia: Muridae) in the Canary Islands (Spain) is described by means of light and scanning electron ...
Improved biotechnological production of paclitaxel in Taxus media cell cultures by the combined action of coronatine and calix[8]arenes
Paclitaxel (PTX), a widely used anticancer agent, is found in the inner bark of several Taxus species, although at such low levels that its extraction is ecologically unsustainable. Biotechnological platforms based on Taxus ...
Helminth absence and invasion success of blackchin tilapia (<em>Sarotherodon melanotheron</em>) in Thailand
Introduction: This study investigates the helminth absence in the invasive blackchin tilapia (Sarotherodon melanotheron) in Thailand, testing the Enemy Release Hypothesis (ERH). The ERH suggests that invasive species thrive ...
Chemical and biological aspects of Amaryllidaceae alkaloids
Podeu consultar el llibre complet a: http://hdl.handle.net/2445/32392
New conservation viewpoints when plants are viewed at one level higher. Integration of phylogeographic structure, niche modeling and genetic diversity in conservation planning of W Mediterranean larkspurs
Protection and management of closely related endangered species and subspecies at a very narrow regional scale is the origin of multiple dysfunctional conservation decisions. These include artificially increased IUCN risk ...
Notes taxonomiques i nomenclatures sobre el genere Verbascum L. (Celsia L.) a la Peninsula Iberica i Illes Balears
En el presente trabajo se proponen cuatro cambios nomenclatures: Verbascum erosun Cav. (= V. laciniatum (Poiret) O. Kuntze); V. masguindali (Pau) comb, nov.; V. pseudocreticurn nom. nov. y V. fontqueri nom. nov. Se adjuntan ...
Vegetación higronitrófila de los embalses del curso superior del Segre y de la Noguera Pallaresa (Prepirineos Centrales)
Descripció de la vegetació higronitròfila dels embassaments dels cursos superiors dels rius Segre i Noguera Pallaresa. Hom proposa els següents nous sintàxons: Xanthio-Polygonetum persicariae O. de Bolòs 1957 subass. ...
Ús i gestió del territori a la mediterrània: implicacions en la matèria orgànica del sòl
Land use and management in Mediterranean ecosystems: implications for soil organic matter. - In the Mediterranean basin, soils have been intensively used to supply food, raw materials and energy. Here we aim to interpret ...
Back to the island of calm: Mallorcan human traditional medicine and ethnobotany
Podeu consultar el llibre complet a: http://hdl.handle.net/2445/63704
Fertilization in the cestode Echinococcus multilocularis (Cyclophyllidea, Taeniidae)
Fertilization in the taeniid cestode Echinococcus multilocularis with uniflagellate spermatozoa was examined by means of transmission electron microscopy (TEM). Fertilization in this species occurs in the oviduct lumen or ...
N-oxide alkaloids from Crinum amabile (Amaryllidaceae)
Natural products play an important role in the development of new drugs. In this context, the Amaryllidaceae alkaloids have attracted considerable attention in view of their unique structural features and various biological ...
Activitat d'organografia de plantes medicinals, complement a les pràctiques de Botànica farmacèutica
Podeu consultar la Vuitena trobada de professorat de Ciències de la Salut completa a: http://hdl.handle.net/2445/66524
Seseli farrenyi: un endemisme empordanès en vies d'extinció?
Seseli farrenyi: un endemisme empordanès en vies d"extinció?- Seseli farrenyi és un endemisme estrictament català, que compta amb un nombre molt reduït de poblacions a la franja litoral nord del cap de Creus (Alt Empordà). ...
Chemodiversity, chemotaxonomy and chemoecology of Amaryllidaceae alkaloids
The Amaryllidaceae alkaloids are a distinctive chemotaxonomic feature of the subfamily Amaryllidoideae of the family Amaryllidaceae, which consists of 59 genera and > 800 species distributed primarily in tropical and ...
The Use of AlphaFold for in silico exploration of drug targets in the parasite Trypanosoma cruzi
Chagas disease is a devastating neglected disease caused by the parasite Trypanosoma cruzi, which affects millions of people worldwide. The two anti-parasitic drugs available, nifurtimox and benznidazole, have a good ...
Effect of gamma rays and colchicine on silymarin production in cell suspension cultures of Silybum marianum: A transcriptomic study of key genes involved in the biosynthetic pathway
The aim of this study was to investigate secondary metabolite production in Silybum marianum L. cell suspension cultures obtained from seeds treated with gamma rays (200 and 600 Gy) and 0.05% colchicine. The effects of ...
Stellario pallidae-Chenopodietum exsuccii Molero et Blanche, nueva asociacion de la comarca de los Monegros (Valle del Ebro).
Los montes de la Retuerta de Pina, situados en el corazón de los Monegros, entre Pina y Bujaraloz, constituyen una suave elevación que se alza ligeramente (417 m s.m. en Purburell) sobre la plataforma de Bujaraloz (300 m ...
