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Mostrando ítems 1-11 de 11

    • 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 ...

    • 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 ...

    • 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 ...

    • 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 ...