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Mutation breeding in the cat and dwarf date palms
(2021-09-27)
In Costa Rica, the cat palm (Chamaedorea cataractarum) and the dwarf date palm (Phoenix roebelenii) are two popular ornamental cut-leaf crops. These two crops are easy to grow and maintain and produce leaves almost year-round. ...
The invasion biology of tomato begomoviruses in Costa Rica reveals neutral synergism that may lead to increased disease pressure and economic loss
(2022)
Since the late 1980s, tomato production in Costa Rica has been affected by diseases caused by whitefly-transmitted begomoviruses. The first was tomato yellow
mottle virus (ToYMoV), a locally evolved New World (NW) bipartite ...
Contrasting Effects of Nitrogen and Labile Carbon Addition on N2O Emissions from Andosols in Costa Rica and Chile Under Controlled Conditions
(2022-07-20)
Our study analyzes nitrous oxide (N2O) emissions of two volcanic soils, from a tropical (Costa Rica) and temperate (Chile) environment. Volcanic origin soils are important for dairy production in both countries and ...
Ultraestructura del bambú Guadua amplexifolia (Poaceaea: Bambusoideae) presente en Costa Rica
(2006-12)
Se estudió la ultraestructura anatómica de la lámina y la vaina de la hoja, así como de la bráctea del culmo, de Guadua angustifolia var. Bicolor, por medio de los micros-copio electrónico de barrido. Se encontraron ...
The Roles of MADS-Box Genes During Orchid Floral Development
(2021)
Orchids have flowers of unique beauty that are remarkable for their zygomorphic syndrome, which can be summarized as a floral architecture based on three categories of organs at the perianth: external tepals, internal ...
Citrus Huanglongbing Associated with ‘Candidatus Liberibacter asiaticus’ Present in the Northern Region of Costa Rica but Has Not Been Detected in Other Citrus- Growing Areas
(2015-12)
Since 2011, citrus Huanglongbing (HLB, ex-greening) disease has been detected in Los Chiles, Costa Rica, close to the Nicaraguan border, by the State Phytosanitary Service (Servicio Fitosanitario del Estado; SFE) and by ...
Arbuscular mycorrhizal fungi colonization of Jatropha curcas roots and its impact on growth and survival under green-house-induced hydric stress.
(2024)
Abstract: Arbuscular mycorrhizal fungi (AMF) provide benefits to host plants by enhancing nu-trition and overall fitness. In this study, AMF species were isolated from the soil rhizosphere of Jatropha curcas and were ...
Patogenicidad de hongos asociados a plantas de fresa (Fragaria ananassa) y descripción ultraestructural del patosistema
(2022-08)
Introducción. La fresa 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, presumiblemente, asociada a complejos de hongos ...
Hallazgos ultraestructurales en lesiones foliares asociadas a ‘vena roja’ en helecho hoja de cuero*
Ultrastructural findings in foliar lesions associated with ‘red vein’ in leather leaf fern
(2014-02)
La vena roja del helecho hoja de cuero (Rumorah adiantiformis) se cataloga como una enfermedad de etiología desconocida, ya que no se conoce cuál es su agente o factor causal. Ésta alteración, al igual que el síndrome de ...
Regulation of Flowering in Orchids
(2021)
Orchids constitute the largest families within the flowering plants; they are one of the most highly evolved groups in the angiosperms; and because of their flashy flowers many species from several genera are very prominent ...