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Some Physicochemical Properties of Maize Rayado Fino Virus
(1981)
Maize rayado fino virus (RFV) was purified from infected maize (Zea mays) leaves. The virus had two components: empty shells and complete virus particles with sedimentation coefficients of 54S and 120S respectively, and ...
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 ...
Algunos factores que afectan la transmisión del virus del rayado fino del maíz por Dalbulus maidis DeLong & Wolcott
(1974)
Previous reports have shown that the leafhopper Dalbulus maidis transmits rayado fino virus (RFV) of maize in a manner characteristic of viruses that multiply in their insect vectors. Further studies of the virus vector ...
Histological observations on maize leaf tissues infected with rayado fino virus
(1977-03)
Observaciones realizadas al microscopio electrónico mostraron que las células del parénquima de hojas de maíz infectadas con el virus del rayado fino (VRF) aparecían ligeramente contraídas en relación a las de hojas sanas. ...
Prevalencia del virus X en plantaciones comerciales de papa en la zona del Volcán Irazú, Cartago, Costa Rica
(1980)
The chloroplast-agglutination serologic technique as used to determine the prevalence of infection by Potato Virus X in six commercial plantations of this crop ( Solanum tuberosum L. ) in the potato growing area near the ...
Adaptación de una técnica de inmunosorbencia (ELISA) a la detección del virus del rayado fino del maíz en su insecto vector
(1983-06)
An enzyme-linked immunosorbent assay (ELISA) was adapted for detection of maize rayado fino virus (RFV) in its insect vector Dalbulus maidis. Optimization of experimental conditions for the assay included the use of ...
Una doble infección viral en orquídeas del género Cymbidium
(1986)
A double -viral infection in Cymbidium hybrids is described. Virions were discovered by negative staining of sick plant sap, which showed a rigid type and a flexible virus. Two types of viral-cytoplasmatic inclusions, ...
La ultraestructura de la superficie foliar de cultivares de maíz infectados con el virus del rayado fino
(1980-10)
The ultrastructural alterations induced by rayado fino in the foliar lamina of infected maize plants vary with plant genotype. The chlorotic spots or short stripes, typical of the macroscopic disease symptom, do not ...
Los virus del frijol en Centroamérica. IV. Algunas propiedades y transmisión por insectos crisomélidos del virus del moteado amarillo del frijol.
(1976-04)
Bean yellow stipple virus (BYSV) was isolate from beans (Phaseolus vulgaris) in Turrialba, Costa Rica. Infected plants showed a distinctive yellow stippling and slight malformation leaves BYSV infected 14 of 24 mechanically ...
Incidence and some ecological aspects of severe mosaic virus in two cropping systems in Costa Rica
(1982-03)
La incidencia del virus del mosaico severo del frijol de costa (cowpea severe mosaic virus) es similar tanto en el cultivo individual de esta especie como en su asociación con maíz. En ambos sistemas de cultivo se registró ...