Now showing items 11-20 of 34
Scirtothrips menai sp.n., a new species from Costa Rica, Central America (Thysanoptera, Terebrantia, Thripidae)
Scirtothrips menai sp.n., una nueva especie de Costa Rica, América Central (Thysanoptera, Terebrantia, Thripidae)
The genus Scirtothrips Shull 1909 is characterized by small, pale, active thrips with no more than 1500 μm in length that feed generally on young leaves. Most species feed on a few host plants, while others are polyphagous, ...
Key to the species of the genus Scleria (Cyperaceae) in Costa Rica based on the morphology of achenes
We described the achenes of 21 species of the genus Scleria reported in Costa Rica using 16 morphological characters and developed a key based only on achene characteristics. Specimens deposited in herbaria in Costa Rica ...
Production of selenium nanoparticles in Pseudomonas putida KT2440
Selenium (Se) is an essential element for the cell that has multiple applications in medicine and technology; microorganisms play an important role in Se transformations in the environment. Here we report the previously ...
A distinctive oral phenotype points to FAM20A mutations not identified by Sanger sequencing
Biallelic FAM20A mutations cause two conditions where Amelogenesis Imperfecta (AI) is the presenting feature: Amelogenesis Imperfecta and Gingival Fibromatosis Syndrome; and Enamel Renal Syndrome. A distinctive oral phenotype ...
Simple route for nano-hydroxyapatite properties expansion
Simple surface modification of nano-hydroxyapatite, through acid-basic reactions, allows expanding the properties of this material. Introduction of organic groups such as hydrophobic alkyl chains, carboxylic acid, and amide ...
Effect of Gamma Irradiation and Selection with Fungus Filtrate (Rhizoctonia solani Kuhn) on the in Vitro Culture of Common Bean (Phaseolus vulgaris)
The present investigation was undertaken to study the effect of gamma irradiation (dose from 10 to 100 Gy) and in vitro selection with fungus filtrate as selecting agent (concentration from 20% to 100%) on the susceptibility ...
Genetic analysis of the dry forest timber tree Sideroxylon capiri in Costa Rica using AFLP
Sideroxylon capiri (“Tempisque”) is a threatened and economically important timber species in the dry forest of Costa Rica. To assess the extent of the genetic diversity between and within populations of this species, 86 ...
Dry-season leaf flushing of Enterolobium cyclocarpum (ear-pod tree): above- and belowground phenology and water relations
Above- and belowground phenology and water relations of Enterolobium cyclocarpum Jacq. trees in the dry forest of Santa Rosa National Park, Costa Rica were studied during two consecutive phenological cycles, from November ...
Caracterización de productores de hortalizas orgánicas distribuidas en la Gran Área Metropolitana (GAM), Costa Rica
Characterization of the producers of organic vegetables distributed in the Greater Metropolitan Area (GAM), Costa Rica
Para caracterizar la población de productores que distribuyen hortalizas orgánicas en la Gran Área Metropolitana (GAM) de Costa Rica, se aplicó una encuesta semi-estructurada a 30 de ellos, ubicados en distintos puntos de ...
Algunos Detalles Ultraestructurales de la Morfología Externa del Adulto y la Deutoninfa de Allonothrus neotropicus1 en Costa Rica
Some Ultrastructural Details of the External Morphology of the Adult and Deutonymph of Allonothrus neotropicus1 in Costa Rica
Se analiza la ultraestructura de Allonothrus neotropicus con ejemplares recolectados en hojarasca de suelo de la región Caribe de Costa Rica. Los caracteres que definen esta especies son: 1) seta e1 el doble de larga que ...