Buscar
Mostrando ítems 1-10 de 17
Relaciones hídricas en árboles del bosque tropical seco: el caso de Enterolobium cyclocarpum
(2011)
Las relaciones hídricas en árboles de Enterolobium cyclocarpum del Parque Nacional Santa Rosa, Costa Rica,
se estudiaron en diferentes momentos del curso diurno y a lo largo de dos ciclos fenológicos. La característica ...
Caracterización de tipos virales causantes de la bronquitis infecciosa aviar (IBV) en granjas de pequeños y medianos productores avícolas en Costa Rica
Molecular characterization of an avian GA13-like Infectious bronchitis virus full-length genome from Costa Rica
Caracterización molecular del gen S1 en aislamientos tipo GI-17 y GI-13 del virus de la bronquitis infecciosa (IBV) en Costa Rica, entre los años 2016 y 2019
Reporte de Caso: Descripción de un brote de bronquitis infecciosa aviar (IBV) en el año 2016 en Costa Rica, asociado a la variante GA13
(2020)
La bronquitis infecciosa (IB) es una enfermedad muy contagiosa del tracto respiratorio de las aves. Puede afectar también el tejido entérico y reproductivo, por lo que ha acarreado problemas económicos, al disminuir el ...
Reduced activity of Arabidopsis chromosome-cohesion regulator gene CTF7/ECO1 alters cytosine methylation status and retrotransposon expression
(2015-05-01)
Multicellular organisms such as higher plants require timely regulation of DNA replication and cell division to grow and develop. Recent work in Arabidopsis has shown that chromosome segregation during meiosis and mitosis ...
Patogenicidad de tres hongos asociados a la muerte de plantas de fresa (Fragaria ananassa) y descripción ultraestructural del patosistema
Pathogenicity of fungi associated with strawberry plants (Fragaria ananassa) and ultrastructural description of the pathosystem
(2022-08-03)
Introducción. El cultivo de fresa (Fragaria
ananassa) es importante en Costa Rica
por su alta demanda como fruta fresca y para
elaboración de mermeladas. En 2015 empezaron
reportes de muerte de plantas, presumiblemen ...
Arabidopsis Qc‑SNARE genes BET11 and BET12 are required for fertility and pollen tube elongation
(2015-10-01)
Pollen tubes are rapidly growing specialized structures that elongate in a polar manner. They play a crucial role in the delivery of sperm cells through the stylar tissues of the flower and into the embryo sac, where the ...
Distribution and diversity of begomoviruses in tomato and sweet pepper plants in Costa Rica
(2017)
Begomoviruses (genus Begomovirus, family Geminiviridae) have emerged as important plant pathogens in tropical and subtropical regions worldwide. Although these viruses were reported during the 1970s in Costa Rica, they are ...
The Opposing Actions of Arabidopsis CHROMOSOME TRANSMISSION FIDELITY7 and WINGS APART-LIKE1 and 2 Differ in Mitotic and Meiotic Cells
(2016-02-01)
Sister chromatid cohesion, which is mediated by the cohesin complex, is essential for the proper segregation of chromosomes during mitosis and meiosis. Stable binding of cohesin with chromosomes is regulated in part by the ...
Reproductive biology and behavior of Doru taeniatum (Forficulidae)
(Revista de BioIogía Tropical 36(2B): 437-440, 1988., 1988)
This study deals with the biology of Doru taeniatum, (Forficuüdae), particulary the habitat, feeding, reproduction, maternal care, and nymphal stages. The density of adults is higher in the older corn plants.
The earwings ...
Dry-season leaf flushing of Enterolobium cyclocarpum (ear-pod tree): above- and belowground phenology and water relations
(2007-11)
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 ...
Matambú y Matambuguito, buenas noticias
(2013-06-26)
Se comenta la situación de la escasez de agua, y la seguridad alimentaria y nutricional, en el Territorio Indígena de Matambú.