autores
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Análisis anatómico y morfológico del ginóforo de maní en presencia de Thecaphora Frezii
Flamarique, Sofía Solange; Matesevach Becerra, A.M.; Ortega, Leandro Ismael; Paredes, Juan Andrés; Rago, Alejandro Mario; Merino, Maria Cecilia (Centro de Ingenieros Agrónomos General Cabrera, 2022-09-15)El carbón del maní es la principal enfermedad que afecta a este cultivo en Argentina. El agente causal es el hongo Thecaphora frezii, el cual sobrevive en el suelo en forma de teliosporas. El ciclo de infección inicia ... -
Caracterización de Xylella fastidiosa a partir de materiales vegetales y cepas aisladas de olivo (Olea europaea L.) e implementación de un sistema de diagnóstico serológico en Argentina
Tolocka, Patricia; Giolitti, Fabian; Guzman, Fabiana; Mattio, Maria Fernanda; Nome Docampo, Claudia; Ortega, Leandro Ismael; Paccioretti, Mauro Andres; Roca, M.E.; Otero, Maria Laura; Haelterman, Raquel Mercedes (Ediciones INTA, 2021-12)Xylella fastidiosa está considerada plaga cuarentenaria de importancia global por el grave impacto económico y social que ocasiona en cultivos de importancia agrícola. El objetivo de este trabajo fue aislar y caracterizar ... -
Decreased reactive oxygen species concentration in the elongation zone contributes to the reduction in maize leaf growth under salinity
Rodriguez, Andrés Alberto; Córdoba, Alicia R.; Ortega, Leandro Ismael; Taleisnik, Edith (Society for Experimental Biology, 2004-06)Reactive oxygen species (ROS) in the apoplast of cells in the growing zone of grass leaves are required for elongation growth. This work evaluates whether salinity‐induced reductions in leaf elongation are related to altered ... -
Elongation growth in leaf blades of Chloris gayana under saline conditions
Ortega, Leandro Ismael; Taleisnik, Edith (Elsevier, 2003)In Chloris gayana, salinity-associated yield decreases are due mainly to leaf area reductions. To understand the physiological basis for such reduction, the effects of salinity were studied on the spatial and temporal ... -
First report of Berkeleyomyces basicola (synonymous: Thielaviopsis basicola) on roots of sweet potato (Ipomoea batatas (L.) Lam) in Argentina
Martino, Julia Andrea; Di Feo, Liliana Del Valle; Paccioretti, Mauro Andres; Contardi, Clara Adriana; Sanchez, Miguel Alejandro; Ortega, Leandro Ismael; Pastor, Silvina Estela (Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, 2021-07-07)Symptomatic sweet potato cv Arapey INIA samples were collected from a commercial production field in Colonia Molina, Guaymallén department, Mendoza province, Argentina. They showed dark rounded lesions, sometimes coalescing ... -
Genetic variability for responses to short‐ and long‐term salt stress in vegetative sunflower plants
Ceccoli, Gabriel; Senn, Eugenia; Bustos, Dolores Angela; Ortega, Leandro Ismael; Córdoba, Alicia R.; Vegetti, Abelardo Carlos; Taleisnik, Edith (Wiley, 2012-12)Sunflower (Helianthus annuus L.) has been rated as moderately salt‐resistant, and variability for salt resistance has been detected within this crop. However, variability in salt‐resistance mechanisms has not been assessed. ... -
Involvement of nitrate reductase (NR) in osmotic stress-induced NO generation of Arabidopsis thaliana L. roots
Kolbert, Zsuzsanna; Ortega, Leandro Ismael; Erdei, László (Elsevier, 2010-01)Nitric oxide (NO) is undoubtedly a potential signal molecule in diverse developmental processes and stress responses. Despite our extensive knowledge about the role of NO in physiological and stress responses, the source ... -
Leaf expansion in grasses under salt stress
Taleisnik, Edith; Rodriguez, Andrés Alberto; Bustos, Dolores Angela; Erdei, László; Ortega, Leandro Ismael; Senn, Eugenia (Elsevier, 2009-07)Restriction of leaf growth is among the earliest visible effects of many stress conditions, including salinity. Because leaves determine radiation interception and are the main photosynthetic organs, salinity effects on ... -
Mycoparasitic Trichoderma isolates as a biocontrol agent against Valsa ceratosperma, the causal agent of apple valsa canker
Valetti, Lucio; Bernanrdi Lima, Nelson; Cazon, Luis Ignacio; Crociara, Clara Sonia; Ortega, Leandro Ismael; Pastor, Silvina Estela (Springer, 2022-05-27)Apple valsa canker, caused by the fungus Valsa ceratosperma, is one of the most destructive diseases of this crop. Conventional fungicide treatments are not effective enough; therefore, it is necessary to develop alternatives ... -
Physiological causes for decreased productivity under high salinity in Boma, a tetraploid Chloris gayana cultivar
De Luca, Marcos Javier; García Seffino, L.; Grunberg, Karina; Salgado, M.; Córdoba, Alicia R.; Luna, Celina Mercedes; Ortega, Leandro Ismael; Rodriguez, Andrés Alberto; Castagnaro, Ana P.; Taleisnik, Edith (CSIRO Publishing, 2001)Rhodes grass (Chloris gayana Kunth) is widely cultivated in the semi-arid tropics and favoured for salt tolerance; nevertheless, productivity decreases significantly under saline conditions, especially in tetraploid ... -
Plasticity in sunflower leaf and cell growth under high salinity
Céccoli, Gabriel; Bustos, Dolores Angela; Ortega, Leandro Ismael; Senn, Eugenia; Vegetti, Abelardo Carlos; Taleisnik, Edith (Wiley, 2015-01)A group of sunflower lines that exhibit a range of leaf Na+ concentrations under high salinity was used to explore whether the responses to the osmotic and ionic components of salinity can be distinguished in leaf expansion ... -
Salinity induced anatomical and morphological changes in Chloris gayana Kunth roots
Ceccoli, Gabriel; Ramos, Julio C.; Ortega, Leandro Ismael; Acosta, Juan M.; Perreta, Mariel Gladis (Universidad Nacional de Cuyo, 2011)Chloris gayana Kunth is a grass species valuable as forage which was introduced into Argentina to be used as pasture in saline soils of subtropical and warm-temperate zones, given its good adaptability to drought, salinity ... -
Salt tolerance variability among stress‐selected Panicum coloratum cv. Klein plants
Pittaro, Gabriela; Caceres, Leandro; Bruno, Cecilia Inés; Tomas, Maria Andrea; Bustos, Dolores Angela; Monteoliva, Mariela Ines; Ortega, Leandro Ismael; Taleisnik, Edith (Wiley; British Grassland Society; European Grassland Federation, 2016-11)This work assessed intracultivar variability for salt tolerance within Panicum coloratum cv. Klein, explored some physiological parameters potentially associated with it and evaluated the contribution of cell division and ... -
Soybean responseto initial stage of Fusarium virguliforme infection
Giachero, María Lorena; Marquez, Nathalie; Ortega, Leandro Ismael; Ducasse, Daniel Adrian (BioRxiv, 2022-03-07)Fusarium virguliforme causes the Sudden Death Syndrome, an important disease in soybean crops. In this work, we investigated the defensive response mechanisms in soybean root, at cell wall level, during F. virguliforme ... -
Sweet corn (Zea mays L.) growth and yield are influenced by establishment methods
Ceccoli, Gabriel; Ortega, Leandro Ismael; Gariglio, Norberto Francisco; Favaro, Juan Carlos; Bouzo, Carlos Alberto (South African National Biodiversity Institute, 2014-06)Six experiments were performed in the term of three years in order to explore and compare the effects of transplanting and direct sowing (DS) on sweet corn (Zea mays L.) growth, earliness and yield. Different genotypes, ... -
Why are Chloris gayana leaves shorter in salt-affected plants? Analyses in the elongation zone
Ortega, Leandro Ismael; Fry, Stephen C.; Taleisnik, Edith (Society for Experimental Biology, 2006-11)Reduced hydraulic conductance calculated from growth data was suggested to be the main reason for reduced leaf expansion in salt-stressed Chloris gayana (Rhodes grass). In this work, xylem vessel cross-sections and wall ...