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Mostrando ítems 1-15 de 15
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An analysis of the genomic variability of the phytopathogenic mollicute Spiroplasma kunkelii
Carpane, Pablo; Melcher, Ulrich; Wayadande, Astri; Gimenez Pecci, Maria De La Paz; Laguna, Irma Graciela; Dolezal, William; Fletcher, Jacqueline (American Phytopathological Society, 2013-02)Corn stunt disease has become a factor limiting maize production in some areas of the Americas in recent years. Although resistant maize genotypes have been developed in the past, this resistance has been unstable over ... -
Bottom-up effect of nitrogen fertilization on the density of the corn leafhopper and its impact on both disease incidence and natural parasitism
Virla, Eduardo G.; Luft Albarracín, Erica B.; Díaz, Cecilia; Van Nieuwenhove, Guido A.; Fernandez, Franco Daniel; Coll Aráoz, María V.; Melchert, Nicolás A.; Conci, Luis Rogelio; Gimenez, Maria De La Paz (Springer, 2022-04-15)The corn leafhopper Dalbulus maidis is a specialist herbivore that attacks maize in the tropical and subtropical regions of the Americas. It is the vector of three relevant plant pathogens that are responsible for severe ... -
Characterization of Argentinian Endemic Aspergillus flavus Isolates and Their Potential Use as Biocontrol Agents for Mycotoxins in Maize
Camiletti, Boris Xavier; Moral, Juan; Asensio, Claudia Mariana; Torrico Ramallo, Ada Karina; Lucini, Enrique Iván; Gimenez, Maria De La Paz; Michailides, Themis J. (American Phytopathological Society, 2018-05-07)Maize (Zea mays L.) is a highly valuable crop in Argentina, frequently contaminated with the mycotoxins produced by Aspergillus flavus. Biocontrol products formulated with atoxigenic (nontoxic) strains of this fungal species ... -
Characterization of Components of Resistance to Corn Stunt Disease
Oleszczuk, José D.; Catalano, María I.; Dalaisón, Lucía; Di Rienzo, Julio A.; Gimenez, Maria De La Paz; Carpane, Pablo D. (2020-05-28)Considering the occasional but increasing presence of corn stunt disease in the subtropical region of Argentina, the objective of this research was to devise an effective strategy to screen disease-resistant genotypes in ... -
Complete genome sequence of maize yellow striate virus, a new cytorhabdovirus infecting maize and wheat crops in Argentina
Maurino, Maria Fernanda; Dumon, Analia Delina; Llauger, Gabriela; Alemandri, Vanina Maria; De Haro, Luis Alejandro; Mattio, Maria Fernanda; Del Vas, Mariana; Laguna, Irma Graciela; Gimenez Pecci, Maria De La Paz (Springer, 2018-01)A rhabdovirus infecting maize and wheat crops in Argentina was molecularly characterized. Through next-generation sequencing (NGS) of symptomatic leaf samples, the complete genome was obtained of two isolates of maize ... -
Differential response of maize hybrids to field infection with Aspergillus flavus and aflatoxin accumulation in the Chaco Semi-arid region of Argentina
Barontini, Javier Miguel; Alaniz Zanon, Maria Silvina; Druetta, Marcelo Alberto; Ruiz Posse, Agustina María; Torrico Ramallo, Ada Karina; Monge, María del Pilar; Candela, Raúl Esteban; Chulze, Sofía Noemí; Gimenez, Maria De La Paz (Elsevier, 2022-03-08)Maize is affected by Aspergillus flavus and by the contamination of its kernels with aflatoxins, of which AFB1 is the most important. The Chaco Semi-arid is a region of Argentina in which the climate conditions increase ... -
Essential oils and their combinations with iprodione fungicide as potential antifungal agents against withe rot (Sclerotium cepivorum Berk) in garlic (Allium sativum L.) crops
Camiletti, Boris Xavier; Asensio, Claudia Mariana; Gadban, Laura Carolina; Gimenez Pecci, Maria De La Paz; Conles, Martha Y.; Lucini, Enrique Iván (2016)This study was conducted to evaluate essential oils (EOs) and their binary combinations with fungicideiprodione (Ip) as a potential fungicide against Sclerotium cepivorum Berk in order to reduce the amountof pesticide ... -
Estado actual de la sanidad del cultivo de maíz en Argentina
Barontini, Javier Miguel; Raspanti, Jorge Gabriel; Maurino, Maria Fernanda; Ferrer Lanfranchi, Mariana; Laguna, Irma Graciela; Gimenez, Maria De La Paz (Asociación Argentina de Productores en Siembra Directa, 2015-02-06)En el país, un factor relevante para la difusión de las enfermedades en el maíz lo constituye el desarrollo y adopción de nuevos escenarios tecnológicos productivos con la incorporación masiva de sistemas de labranza que ... -
First report of Maize striatemosaic virus, a mastrevirus infecting Zea mays in Argentina
Ruiz Posse, Agustina María; Fernandez, Franco Daniel; Reyna, Pablo Gastón; Nome Docampo, Claudia; Torrico Ramallo, Ada Karina; Gimenez Pecci, María De La Paz; Rodriguez Pardina, Patricia (Wiley, 2023-06-23)During 2021, sweet corn plants cultivated for human consumption in a 400-ha area in Santa Fe province, Argentina, showed severe virus-like symptoms, including marked dwarfism, plant deformation, nerval or internerval vein ... -
First report of rice stripe necrosis virus in Argentina
Maurino, María Fernanda; Gimenez Pecci, Maria de la Paz; Kruger, Raúl; Cúndom, María Águeda; Gutierrez, Susana Alejandra; Celli, Marcos Giovani (Elsevier, 2018-12)Since 2008/2009, we have seen symptoms of viral infection in rice plants from crop regions in Argentina. The main objective of this work was to identify the causal agent of the rice plants' crinkling. We therefore analyzed ... -
Fungal screening and aflatoxin production by Aspergillus section Flavi isolated from pre-harvest maize ears grown in two Argentine regions
Camiletti, Boris Xavier; Torrico Ramallo, Ada Karina; Maurino, Maria Fernanda; Cristos, Diego Sebastian; Magnoli, Carina; Lucini, Enrique Iván; Gimenez Pecci, Maria De La Paz (Elsevier, 2017-02)Aflatoxin contamination in maize kernels grown in central Argentina has increased since 2008. Pre-harvest maize ear samples were collected during two growing seasons to determine prevalent fungal genera as well as aflatoxin ... -
Hongos de podredumbre de la espiga en maíz, en Santiago del Estero y Chaco
Barontini, Javier Miguel; Ruiz Posse, Agustina María; Druetta, Marcelo Alberto; Torrico Ramallo, Ada Karina; Ferrer Lanfranchi, Mariana; Gimenez, Maria De La Paz (Asociación Argentina de Productores en Siembra Directa, 2021-07-26)Argentina se encuentra entre los lideres mundiales en producción de maíz, ocupando el sexto lugar como productor con alrededor de 60 millones de toneladas y oscila entre el tercero y cuarto como exportador ( MAGyP. 2020) -
Infection with Spiroplasma kunkelii on temperate and tropical x temperate maize in Argentina and development of a tool to evaluate germplasm
Barontini, Javier Miguel; Peña Malavera, Andrea; Ferrer Lanfranchi, Mariana; Torrico Ramallo, Ada Karina; Maurino, Maria Fernanda; Gimenez, Maria De La Paz (Springer, 2021-11-30)Corn stunt disease is a disease that extends from the southern United States to Argentina and is one of the most important diseases in warm subtropical areas of the continent, periodically causing yield reductions in maize. ... -
Natural control of corn postharvest fungi Aspergillus flavus and Penicillium sp. using essential oils from plants grown in Argentina
Camiletti, Boris Xavier; Asensio, Claudia Mariana; Gimenez, Maria De La Paz; Lucini, Enrique Iván (Wiley; Institute of Food Technologists, 2014-12)The objective in this study was to evaluate the antifungal activity of essential oils from native and commercial aromatic plants grown in Argentina against corn postharvest fungi and to link the essential oil bioactivity ... -
Performance of transgenic maize genotypes against ear caterpillars in Argentina
Barontini, Javier Miguel; Druetta, Marcelo Alberto; Luna, Ignacio Martin; Torrico Ramallo, Ada Karina; Alaniz Zanon, Maria Silvina; Paccioretti, Pablo Ariel; Maurino, Maria Fernanda; Gimenez, Maria De La Paz; Chulze, Sofía Noemí (Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Italia, 2020)Maize (Zea mays L.) is one of the most widely cultivated crops in the world and Argentina is a leading producer worldwide. Lepidopteran pests such as the fall army worm (Spodoptera frugiperda -J. E. Smith-) and the ...