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Mostrando ítems 11-20 de 38
Identificación del virus del mosaico del maíz, un rhabdovirus, en Costa Rica
(1994)
Maize mosaic virus (MMV), a rhabdovirus, was identified associated to maize field plants, showing stunting and continuous chlorotic stripes uniformely distributed over the leaf blade.The virus was detected in field samples ...
First Report of Potato Spindle Tuber Viroid in Costa Rica
(1999-11)
During 1997 to 1998, symptoms of leaf roll, dwarfism, chlorosis, and occasional leaf necrosis were observed on Solanum tuberosum in several plots in Cartago, the principal potato-production region of Costa Rica. Because ...
Caracterización del MStV asociado a una enfermedad de maíz en Costa Rica
(1991-09)
Maize stripe virus (MStV) was identified as a causal agent of a corn disease in Costa Rica. Cytoplasmic inclusion bodies in needle, ring and eight-shapes were observed by light microscopy in infected leaf tissue. Different ...
Rayado virus fino: detection in salivary glands and evidence of increase in virus titer in the leafhopper vector Dalbulus maidis.
(1981-03)
El virus rayado fino del maíz se detectó en las glándulas salivales de insectos transmisores
(Dalbulus maidis) examinadas al microscopio electrónico. Por otra parte,utilizando la técnica serológica de ELISA (enzyme-linked ...
Infección de la orquídea terrestre Phaius tankervillae (Orchidaceae) con el cymbidium mosaic potexvirus (CymMV) en Costa Rica
(1999)
En 1996, en un pequeño vívero comercial en la zona oeste del Valle Central de Costa Rica se observaron plantas de la orquídea terrestres Phaius tankervilliae que mostraban síntomas foliares de leves a severos de un estriado ...
Estudio de la distribución de las enfermedades virosas de la caña de azúcar en Costa Rica
(2006)
El estudio de las enfermedades de origen viral requiere de técnicas inmunológicas de alta precisión y confiabilidad. Haciendo uso de estas herramientas y con el apoyo del Ministerio de Ciencia y Tecnología y del Centro de ...
First Report of Citrus Blight in Costa Rica
(2005-01)
Citrus blight (CB), causing a chronic decline of citrus, has been an important disease in Florida for over 100 years. CB was first reported in Brazil in the 1980s and is now responsible for the removal of nearly 10% of the ...
Detection of Potyvirus-like Particles Associated with Oil Palms (Elaeis guineensis) in Ecuador
(1996-09-03)
Oil palm (Elaeis guineensis Jacq.) seedlings showing a conspicuous mottling, composed of alternating dark green and chlorotic areas in the form of discontinuous streaks or irregular ring patterns, were observed in the ...
Confirmation of Xylella fastidiosa infecting grapes (Vitis vinifera) in Costa Rica
Confirmación de la presencia de Xylella fastidiosa infectando vid (Vitis vinifera) en Costa Rica
(2008-11)
In 2003, symptoms of Pierce Disease (PD) were observed in two vineyards established in two different localities in San Jose province (Santa Ana and La Uruca) and in La Garita, Alajuela province. Twenty four symptomatic ...
Genetic Diversity of Xylella fastidiosa Strains from Costa Rica, São Paulo, Brazil, and United States
(2007-10)
The diversity of 42 Xylella fastidiosa strains from Costa Rica, São Paulo, Brazil, and the United States were analyzed using the sequence of the 16S rRNA gene by variable number of tandem repeat (VNTR) fragment analysis ...