Search results for " plants"
showing 10 items of 860 documents
Factors Affecting Polyphenol Biosynthesis in Wild and Field Grown St. John’s Wort (Hypericum perforatum L. Hypericaceae/Guttiferae)
2009
The increasing diffusion of herbal products is posing new questions: why are products so often different in their composition and efficacy? Which approach is more suitable to increase the biochemical productivity of medicinal plants with large-scale, low-cost solutions? Can the phytochemical profile of a medicinal plant be modulated in order to increase the accumulation of its most valuable constituents? Will polyphenol-rich medicinal crops ever be traded as commodities? Providing a proactive answer to such questions is an extremely hard task, due to the large number of variables involved: intraspecific chemodiversity, plant breeding, ontogenetic stage, post-harvest handling, biotic and abi…
Valorizzazione produttiva della biodiversità in ambiente mediterraneo: il genere Hypericum
2014
Una conoscenza approfondita delle specie appartenenti al genere Hypericum, finalizzata alla loro introduzione negli ordinamenti colturali come specie di interesse industriale e/o ornamentale, comporta la dettagliata descrizione dei parametri morfologici e ambientali delle piante nei loro siti di vegetazione spontanea, e l’accertamento delle loro caratteristiche fitochimiche. Negli anni 2012-2013 è stata svolta un’attività di ricognizione a tale scopo. In Sicilia le perlustrazioni svolte hanno portato all'individuazione di 23 accessioni di H. perforatum, H. perfoliatum, H. pubescens, H. tetrapterum e H. calycinum; numerose altre se ne sono aggiunte, provenienti dall’appennino tosco-romagnolo…
Medicinal Plants in the Treatment of Depression. II: Evidence from Clinical Trials
2021
AbstractDepression is a syndrome characterized by deep sadness and the inhibition of psychic functions, sometimes accompanied by neurovegetative disorders, with symptoms of anxiety almost always present. The disease produces alterations in a variety of neural networks and neurotransmission systems, along with a dysfunction of the hypothalamic-pituitary-adrenal axis, which leads to concomitant alterations in the immunological response. Generally, there is a parallel increase in proinflammatory mediators as well as oxidative and nitrosative damage caused by a reduction of antioxidant defenses. In a previous review, we compiled and examined studies of medicinal plants that had been evaluated i…
Ecological aspects of plants inhabiting Mediterranean cliffs. Challenges and prospects of life in vertical environments
2021
[ES] Esta tesis investiga las oportunidades, desafíos y limitaciones para la investigación en el campo de la ecología vegetal, en el contexto de los acantilados mediterráneos. En concreto, las especies casmofiticas, cuyos hábitats naturales se caracterizan por su acusada pendiente. Las laderas de las montañas de piedra caliza en la proximidad del mar, en la parte central y occidental del área mediterránea se consideran objetos de estudio. Los estudios se llevaron a cabo en los cinturones costeros de montaña de las costas del noroeste de Sicilia y la costa diánica en la Comunidad Valenciana. El primer capítulo, titulado "The complexity of environmental factors: cliff microclimate", investiga…
Novedades y consideraciones sobre el género Centaurea L. en la flora valenciana
2008
Se realizan algunas reflexiones sobre las especies valencianotarraconenses de Centaurea sect. Willkommia, grupo que actualmente está conformado por seis táxones en dicho territorio. A partir del estudio de numeroso material que cubre la mitad norte de la provincia de Valencia y la totalidad de Castellón, se revisan dichos táxones y se realiza una nueva propuesta en la que se describen dos nuevas especies: C. aguilellae (de las comarcas del centro-norte de Valencia) y C. fabregatii (de las comarcas del centro-este de Castellón). Novelties and considerations on Centaurea L. concerning the Valencian flora (eastern Spain): Data are reported on the Valencian-Tarraconensian (E of Spain) species o…
Micropollutants removal in an anaerobic membrane bioreactor and in an aerobic conventional treatment plant
2012
The paper expresses an attempt to tackle the problem due to the presence of micropollutants in wastewater which may be able to disrupt the endocrine system of some organisms. These kinds of compounds are ubiquitously present in municipal wastewater treatment plant (WWTP) effluents. The aim of this paper is to compare the fate of the alkylphenols-APs (4-(tert-octyl)) phenol, t-nonylphenol and 4-p-nonylphenol and the hormones (estrone, 17ß-estradiol and 17¿-ethinylestradiol) in a submerged anaerobic membrane bioreactor (SAMBR) pilot plant and in a conventional activated sludge wastewater treatment plant (CTP). The obtained results are also compared with the results obtained in a previous stud…
Analisys of a natural population of Cucumber mosaic virus infecting medicinal plants
2009
New combinations in Balearic plants
1997
Se proponen tres nuevas combinaciones nomenclaturales de plantas endémicas de las Islas Baleares: Ranunculus paludosus Poiret subsp. barceloi (Grau) Rosselló, L. Sáez & N. Torres, Omonis crispa L. subsp. zachackei (F. Herm.) Rosselló & L. Sáez y Ophrys bertolonii Morettii subsp. baleárica (Delforge) Rosselló & L. Sáez. Three new nomenclatural changes of vascular plants endemic of the Balearic archipelago are proposed: Ranunculus paludosus Poiret subsp. Barceloi (Grau) Rosselló, L. Sáez & N. Torres, Ononis crispa L. subsp. zschackei (F. Herm.) Rosselló & L. Sáez and Ophrys bertolonii Morettii subsp. baleárica (Delforge) Rosselló & L. Sáez.
PERANAN TUMBUHAN OBAT DALAM BUDAYA ANAK SUKU MOILE DI MOKWAM MANOKWARI
2010
<p><em>The objective </em><em>of the research </em><em>was to determine the role of medicinal plants in the </em><em>livelyhood </em><em>of children in </em><em>the sub-</em><em>tribe</em><em> </em><em>Moile. The study was conducted in the area </em><em>of </em><em>Mokwam in July 2008. Analysis of Index of Cultural Significance (ICS) is used to measure the role of medicinal plants in </em><em>the culture of the sub-</em><em>trib</em><em>e</em><em> Moile. The results </em><em>showed </em><em>…
Understanding the Impact of Opinion Leaders’ Characteristics on Online Group Knowledge-Sharing Engagement from In-Group and Out-Group Perspectives: E…
2019
Opinion leaders often play key roles in online knowledge-sharing communities, which has intrigued a lot of researchers and practitioners worldwide. However, it is not clear how various characteristics of opinion leaders may affect different online groups&rsquo