Browsing Agronomía by Procedence
Now showing items 21-40 of 79
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Diversidad y presencia de bacterias resistentes a antibióticos en diferentes agroecosistemas de Costa Rica
(2024-01)Este estudio empleó métodos dependientes e independientes de cultivo, secuenciación masiva y análisis bioinformático para explorar la diversidad de comunidades bacterianas en diversos agroecosistemas de Costa Rica, así ... -
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, ... -
Draft genomes of two phylotype I and II Ralstonia solanacearum species complex (RSSC) isolates causing bacterial wilt in tomato plants from Costa Rica
(2024)Bacteria from RSSC hold agricultural significance as they are the causal agents of bacterial wilt. Here, we report the draft genomes of two bacteria extracted from vascular tissues of infected tomato plants. Isolate RALF-MA ... -
Efecto de cuatro rizobacterias promotoras de crecimiento sobre la pudrición basal causada por Phytophthora capsici en plantas de chile dulce (Capsicum annuum)
(2015)La pudrición basal causada por Phytophthora capsici es la enfermedad más importante del chile (Capsicum annuum) ya que en el mundo, y en Costa Rica causa grandes pérdidas económicas; son necesarias alternativas al control ... -
Efecto de la infección de PVX y PVY en la producción de Solanum tuberosum en invernadero con los cultivares Floresta y Granola
(2004)Se realizaron dos ensayos en invernadero para medir el efecto de la infección de PVY y PVX en las variedades cultivadas de papa Floresta y Granola, comúnmente sembradas en Costa Rica. Se sembraron vitroplantas libres de ... -
Effects of coffee processing residues on anaerobic microorganisms and corresponding digestion performance
(2017)The objective of this study was to delineate the effects of different coffee processing residues on the anaerobic microbes and corresponding digestion performance. The results elucidated that mucilage-rich feed enhanced ... -
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 ... -
Expression of the rice hoja blanca virus (RHBV) non-structural protein 3 (NS3) in Escherichia coli and its in situ localization in RHBV-infected rice tissues
(Universidad de Costa Rica, 2004)The non-structural NS3 protein gene from the rice hoja blanca virus (RHBV) was fused to the glutathione- S-transferase carboxilic end and expressed in Escherichia coli strain JM83. Large quantities of fusion protein were ... -
Field Survey of Cucumber mosaic virus Subgroups I and II in Crop Plants in Costa Rica
(2001-09)Leaf samples were collected from cucurbit and solanaceous crop plants and Musa spp. in 28 locations in five provinces of Costa Rica during the period from January to October 1996. Sampling sites were selected in dry, humid, ... -
First insights into the prokaryotic community structure of Lake Cote, Costa Rica: Influence on nutrient cycling
(2022-10-03)Prokaryotic diversity in lakes has been studied for many years mainly focusing on community structure and how the bacterial assemblages are driven by physicochemical conditions such as temperature, oxygen, and nutrients. ... -
First Report of an Aster Yellows Subgroup 16SrI-B Phytoplasma Infecting Chayote in Costa Rica
(2002-03)An outbreak of a witches' broom disease affected approximately 20% of plants in several chayote (Sechium edule (Jacq.) Schwartz) fields in the commercial production area of the Ujarrás Valley, Cartago Province, Costa Rica ... -
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 ... -
First Report of Citrus variegation virus in Palestine Sweet Lime, as Coffee Shade in Costa Rica
(2011)Symptoms resembling those of Citrus variegation virus (CVV) were observed in old Palestine sweet lime trees (Citrus limettioides Tan.) used as coffee shade in the Central Valley in Costa Rica. The symptoms include leaf ... -
First report of Iris yellow spot virus in Costa Rica
(2017)Iris yellow spot virus (IYSV), an emerging disease of onion crops, was identified by transmission electron microscopy, enzyme linked immunosorbent assay, and reverse transcription polymerase chain reaction in Costa Rica. ... -
First Report of New Phytoplasma Diseases Associated with Soybean, Sweet Pepper, and Passion Fruit in Costa Rica
(2009-02)A new soybean disease outbreak occurred in 2002 in a soybean (Glycine max) plantation in Alajuela Province, Costa Rica. Symptoms on the affected plants included general stunting, small leaves, formation of excessive buds, ... -
First Report of Orchid fleck virus in Costa Rica
(2002-12)Orchid fleck virus (OFV), a tentative member of the family Rhabdoviridae, infects orchids in several countries. The virus is vectored worldwide by the mite Brevipalpus californicus (Banks) (Acari: Tenuipalpidae). Eleven ... -
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 ... -
First report of Sugarcane yellow leaf virus (ScYLV) in Costa Rica
(2001-03)In Costa Rica, sugarcane plants with symptoms similar to those described for yellow leaf syndrome (YLS) (1,2) were first observed in 1994 in research plots of imported material in the midland areas of San Carlos and ... -
First Report of the Cymbidium Mosaic Potexvirus (CymMV) Infecting the Terrestrial Orchid Phaius tankervilliae in Costa Rica
(1998-10)In 1996, plants of the terrestrial orchid Phaius tankervilliae from a nursery in the Central Valley of Costa Rica were observed with mild to severe foliar symptoms of chlorotic streak. No differences were observed in growth, ...