Results 1 to 10 of about 253 (66)
Cariotipo de Espeletiopsis muiska [PDF]
Revista MVZ Córdoba, 2013 RESUMENObjetivo. Estudiar el ciclo celular y realizar la descripción cromosómica de Espeletiopsis muiska, utilizando células meristemáticas de ápices radicales obtenidos a través de cultivo in vitro de embriones en medio MS suplementado con AIB. Materiales y métodos.
Rondón B, Héctor +2 more
openaire +12 more sources
A new species of Espeletiopsis (Millerieae, Asteraceae) from Colombia [PDF]
PhytoKeys, 2013 A new species of Espeletiopsis was found in two small páramos of Norte de Santander, Colombia. The species is named Espeletiopsis diazii honoring the contributions of Santiago Díaz-Piedrahita in recognition of his vast knowledge of the ...
Mauricio Diazgranados +1 more
doaj +4 more sources
Geography shapes the phylogeny of frailejones (Espeletiinae Cuatrec., Asteraceae): a remarkable example of recent rapid radiation in sky islands [PDF]
PeerJ, 2017 Background The páramo ecosystem, located above the timberline in the tropical Andes, has been the setting for some of the most dramatic plant radiations, and it is one of the world’s fastest evolving and most diverse high-altitude ecosystems.
Mauricio Diazgranados, Janet C. Barber
doaj +4 more sources
Composition and Antibacterial Screening of the Essential Oils of Leaves and Roots of Cuatrec [PDF]
Natural Product Communications, 2007 Hydrodistillation of leaves and roots of Espeletiopsis angustifolia Cuatrec. (Asteraceae) yielded 0.18% and 0.15% essential oils, respectively. GC-MS analysis allowed identification of 24 components, which made up 92.9% of the total oil from the leaves ...
Gina Meccia +4 more
doaj +2 more sources
Compuestos químicos en los aceites esenciales de Espeletia spp. endémicas de Colombia y evaluación preliminar de su actividad antimicrobiana [PDF]
Revista Peruana de BiologíaEn este trabajo se identifican los compuestos químicos presentes en los aceites esenciales de cinco especies de frailejones y se evaluó su actividad biológica frente a diferentes microorganismos.
Doris Gutiérrez Hernández +2 more
doaj +3 more sources
Thermal niche traits of high alpine plant species and communities across the tropical Andes and their vulnerability to global warming [PDF]
Journal of Biogeography, Volume 47, Issue 2, Page 408-420, February 2020., 2020 Abstract Aim The climate variability hypothesis (CVH) predicts that locations with reduced seasonal temperature variation select for species with narrower thermal ranges. Here we (a) test the CVH by assessing the effect of latitude and elevation on the thermal ranges of Andean vascular plant species and communities, and (b) assess tropical alpine ...
Francisco Cuesta +16 more
wiley +3 more sources
Análisis de los ácidos kaurénicos presentes en Espeletiopsis angustifolia Cuatrec. de los Andes venezolanos [PDF]
Avances en Química, 2010 Analysis of kaurenic acids present in Espeletiopsis angustifolia Cuatrec. from the Venezuelan Andes. Leaves of Espeletiopsis angustifolia were collected at paramo of San José de Acequias (Mérida State) at 2870 m.a.s.l.
Juan Carmona +4 more
doaj +1 more source
Agronomía Colombiana, 2009 <p align="justify">Este estudio desarrolló un protocolo para micropropagación de <i>Espeletiopsis muiska</i> –especie de importancia ecológica, medicinal e industrial, actualmente en riesgo de extinción– en medio de cultivo Murashige y ...
Pacheco José
doaj +1 more source
Acta Biológica Colombiana, 2007 Se estudiaron los rasgos de historia de vida de Espeletia argentea, E. barclayana y Espeletiopsis corymbosa en la reserva forestal municipal de Cogua (RFMC). El objetivo fue determinar qué rasgos de historia de vida le confieren a E.
Francis Andrea Chaves R. +1 more
doaj +1 more source
Ecology and Evolution, Volume 11, Issue 5, Page 2110-2172, March 2021., 2021 High Andean forests play a key role in providing ecosystem services for neighboring urban settlements. Here, we aimed to identify and understand the effects of anthropogenic perturbations on diversity, composition, and structure of plant communities, as well as aboveground biomass in high Andean forest remnants in the hinterland of Bogotá.
Mariasole Calbi +5 more
wiley +1 more source