Ultrastructure of Oryza glumaepatula , a wild rice species endemic of tropical America by Ethel Sánchez, Ana M Espinoza

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Characterization of a Bacillus thuringiensis strain collection isolated from diverse Costa Rican natural ecosystems by Glen Arrieta, Ana M Espinoza

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Ultrastructure of the wild rice Oryza grandiglumis (Gramineae) in Costa Rica by Ethel Sánchez, Tania Quesada, Ana M Espinoza

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Diversity of Bacillus thuringiensis strains isolated from coffee plantations infested with the coffee berry borer Hypothenemus hampei by Glen Arrieta, Alejandro Hernández, Ana M Espinoza

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Ultrastructural morphologic description of the wild rice species Oryza latifolia (Poaceae) in Costa Rica by Ethel Sánchez, Mayra Montiel, Ana M. Espinoza

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Optimization of coffee (Coffea arabica) transformation parameters using uidA and hpt genes: effect of osmotic pre-treatment, helium pressure and target distance by Andrés M Gatica, Griselda Arrieta, Ana M Espinoza

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Comparison of three in vitro protocols for direct somatic embryogenesis and plant regeneration of coffea arabica l. cvs. caturra and catuaí by Andrés M. Gatica, Griselda Arrieta, Ana M. Espinoza

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Direct somatic embryogenesis in coffea arabica L. CVS. caturra and catuaí: effect of triacontanol, light condition, and medium consistency by Andrés M. Gatica, Griselda Arrieta, Ana M. Espinoza

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Relación de los cultivos modificados genéticamente con el ambiente y la salud de la población costarricense by Ana M Espinoza, Griselda Arrieta-Espinoza, Ana Sittenfeld

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A reliable bioassay procedure to evaluate per os toxicity of Bacillus thuringiensis strains against the rice delphacid, Tagosodes orizicolus (Homoptera: Delphacidae) by Rebeca Mora, Jorge E Ibarra, Ana M Espinoza

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Optimization of coffee (Coffea arabica) transformation parameters using uidA and hpt genes: effect of osmotic pre-treatment, helium pressure and target distance by Andrés M Gatica, Griselda Arrieta, Ana M Espinoza

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Phylogenetic position of the yeast-like symbiotes of Tagosodes orizicolus (Homoptera: Delphacidae) based on 18S ribosomal DNA partial sequences by Ana M Xet-Mull, Tania Quesada, Ana M Espinoza

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Genetic diversity of Costa Rican populations of the rice planthopper Tagosodes orizicolus (Homoptera: Delphacidae) by Myriam Hernández, Tania Quesada, Claudia Muñoz, Ana M Espinoza

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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 by Miguel Muñoz, Isela Bolaños, Griselda Arrieta-Espinoza, Ana M Espinoza

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Bacillus thuringiensis in caterpillars and associated materials collected from protected tropical forests in northwestern Costa Rica by César Rodríguez-Sánchez, Ana Sittenfeld, Daniel H Janzen, Ana M Espinoza

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Effect of 2,4-D, hydric stress and light on indica rice (Oryza sativa) somatic embryogenesis by Allan Meneses, Dora Flores, Miguel Muñoz, Griselda Arrieta, Ana M Espinoza

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Histology of somatic embryogenesis in rice (Oryza sativa cv. 5272) by Rafael Vega, Nelly Vásquez, Ana M Espinoza, Andrés M Gatica, Marta Valdez-Melara

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Histology of somatic embryogenesis in rice (Oryza sativa cv. 5272) by Rafael Vega, Nelly Vásquez, Ana M Espinoza, Andrés M Gatica, Marta Valdez-Melara

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