Search
Now showing items 1-10 of 35
Inclusion bodies induced by Bean rugose mosaic comovirus seen under light microscopy
(Universidad de Costa Rica, 2000)
Two types of inclusion bodies were consistently observed under light microscopy in bean (Phaseolus vulgaris) leaf tissue infected with Bean rugose mosaic virus (BRMV), a species of the genus Comovirus, family Comoviridae. ...
Plantas hospederas de los virus más importantes que infectan el melón, Cucumis melo (Cucurbitaceae) en Costa Rica
(Universidad de Costa Rica, 1998)
Natural hosts of four melon viruses (cucumber mosaie virus o CMV, papaya ringspot virus o PRSV, watermelon virus 2 o WMV -2 and zuechini yellow mosaic virus o ZYMV) were identified in two commereial melon farms in Costa ...
Plantas hospederas de Aphis gossypii (Aphididae), vector de virus del melón Cucumis melo (Cucurbitaceae) en Costa Rica
(Universidad de Costa Rica, 2001)
Se identificaron las especies hospederas naturales de Aphis gossypii Glover (Aphididae: Homoptera) en plantaciones comerciales de melón para la exportación en Costa Rica. El estudio se realizó en dos fincas, ubicadas una ...
Cultivo de meristemas, termo y quimioterapia en chayote (Sechium edule Jacq. Sw.) para la erradicación del virus del mosaico del chayote (ChMV)
(2006)
Recientemente se identificó en Costa Rica una nueva enfermedad viral en chayote, denominada "virus del mosaico del chayote" (ChMV, Chayote mosaic virus). Además de disminuir los rendimientos, esta enfermedad causa reducciones ...
Papaya ringspot virus and Cucumber mosaic virus associated with a severe mosaic in melon
(1991-09)
Severe mosaic disease was observed in several melon fields in Costa Rica during the period 1987-1991. Two viruses, papaya ringspot virus (PRSV) and cucumber mosaic virus (CMV) were associated in single and mixed infections ...
Occurrence of Potato Powdery Scab Caused by Spongospora subterranea f. sp. subterranea in Costa Rica
(2002-11)
Powdery scab of potatoes, caused by Spongospora subterranea (Wallr.) Lagerheim f. sp. subterranea Tomlinson, is important worldwide due to its effect on tuber quality and transmission of Potato mop-top virus. Although ...
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 ...
Isolation and molecular characterization of Xylella fastidiosa from coffee plants in Costa Rica.
(2008-10)
Coffee plants exhibiting a range of symptoms including mild to severe curling of leaf margins, chlorosis and deformation of leaves, stunting of plants, shortening of internodes, and dieback of branches have been reported ...
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 ...