Now showing items 451-470 of 609

    • Phosphatidylinositol 3-kinase function at very early symbiont perception: a local nodulation control under stress conditions? 

      Robert, German; Muñoz, Nacira Belen; Alvarado-Affantranger, Xochitl; Saavedra, Laura; Davidenco, Vanina; Rodríguez-Kessler, Margarita; Estrada-Navarrete, Georgina; Sánchez, Federico; Lascano, Hernán Ramiro (Society for Experimental Biology, 2018-04)
      Root hair curling is an early and essential morphological change required for the success of the symbiotic interaction between legumes and rhizobia. At this stage rhizobia grow as an infection thread within root hairs and ...
    • Phylodynamics of sunflower chlorotic mottle virus, an emerging pathosystem 

      Cabrera Mederos, Dariel; Torres, Carolina; Bejerman, Nicolas Esteban; Trucco, Veronica Milagros; Lenardon, Sergio Luis; Leiva Mora, Michel; Giolitti, Fabian (Elsevier, 2020-03-12)
      Distribution and epidemiological patterns of sunflower chlorotic mottle virus (SCMoV) in sunflower (Helianthus annuus L.) growing areas in Argentina were studied from 2006 to 2017. The virus was detected exclusively in ...
    • Physiological and anatomical traits associated with tolerance to long‐term partial submergence stress in the Lotus genus: responses of forage species, a model and an interspecific hybrid 

      Antonelli, Cristian Javier; Calzadilla, Pablo Ignacio; Vilas, Juan Manuel; Campestre, María Paula; Escaray, Francisco José; Ruiz, Oscar Adolfo (2018-09)
      Cattle production based on natural pastures is often subject to flooding periods, which affect plant performance and as a result, forage production. Although most forage legumes are not tolerant to flooding, Lotus spp. are ...
    • 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 ...
    • Physiological characterization of four model Lotus diploid genotypes: L. japonicus (MG20 and Gifu), L. filicaulis, and L. burttii under salt stress 

      Melchiorre, Mariana; Quero, Gastón E.; Parola, Rodrigo; Racca, Roberto Walter; Trippi, Victorio; Lascano, Hernan Ramiro (Elsevier, 2009-09-25)
      The genus Lotus comprises a heterogeneous group of annual and perennial species. Lotus japonicus (with MG20 and Gifu ecotypes) has been adopted as one of the model legumes in genetic and genomic studies. Other Lotus species, ...
    • Phytophthora Root Rot: Importance of the Disease, Current and Novel Methods of Control 

      Giachero, María Lorena; Declerck, Stéphane; Marquez, Nathalie (MDPI, 2022-02-28)
      Phytophthora sojae is a pathogen of major agricultural importance, responsible for Phytophthora root rot (PRR) in soybean crops, which can cause significant yield losses each year. The severity of the disease depends on ...
    • Phytoplasmas diversity and identification of new aster yellows subgroup (16SrI) associated with weed species in Argentina 

      Fernandez, Franco Daniel; Galdeano, Ernestina; Conci, Luis Rogelio (Microbiology Society, 2020-02-03)
      Symptoms of phytoplasma infection were observed in different weed species, Bidens subalternans, Conyza bonariensis, Heterosperma ovatifolium and Conium maculatum, collected from diverse geographical regions in Argentina. ...
    • Phytoplasmas infecting pome and stone fruits in South America and Iberian peninsula 

      Quiroga, Nicolás; Batlle, Assumpció; Laviña, Amparo; Maeso, Diego; Conci, Luis Rogelio; Fernandez, Franco Daniel; Sousa, Esmeraldina; Fiore, Nicola (Indian Journals, 2018-12-10)
      The present review focuses on the diseases associated with phytoplasmas that affect pome and stone fruits trees in Argentina, Bolivia, Chile, Uruguay, Spain and Portugal. The advances and challenges faced by these countries ...
    • Phytoplasmas of subgroup 16SrIII-J associated with Beta vulgaris in Argentina 

      Fernandez, Franco Daniel; Guzman, Fabiana; Baffoni, Patricia Andrea; Reinoso, Lucio; Kiehr, Mirta; Delhey, Rolf; Favere, Verónica Mariela; Galdeano, Ernestina; Conci, Luis Rogelio (Springer, 2020-02-19)
      Symptoms of general wilting and yellowing were found affecting Beta vulgaris L. (sugar beet, fodder beet and chard) in the Argentinean region of Bahía Blanca (Buenos Aires province), Valle Medio, and Valle Inferior de Rio ...
    • Plan S en América Latina: una nota de precaución 

      Debat, Humberto Julio; Babini, Dominique (Centro de Estudios sobre Ciencia Desarrollo y Educación Superior, Argentina, 2020-06)
      El Plan S es una iniciativa de un consorcio europeo de financiadores de investigación orientada a exigir la publicación en acceso abierto de los resultados de la investigación financiados por fondos públicos o privados. ...
    • Plan S in Latin America: a precautionary note 

      Debat, Humberto Julio; Babini, Dominique (Canadian Institute for Studies in Publishing, 2020-02-07)
      Background: Latin America has historically led a vital and open access movement andleads the worldwide region with the adoption of wider open access practices. Argentina has expressed its commitment to join Plan S, an ...
    • Plan S: take Latin America’s long experience on board 

      Debat, Humberto Julio; Babini, Dominique (Nature Research, 2019-09-24)
      We share the spirit of Plan S to achieve full open access to scholarly publications (see go.nature.com/2hszsaf), but we disagree with its implementation guidelines. The plan’s design ignores more than 20 years of widespread ...
    • Plant Biology: New Insight into How Roots 'Mask Up' 

      Monteoliva, Mariela Ines; Bartley, Laura E. (Cell Press, 2021-03-08)
      Extra- and trans-cellular barriers are essential for root function under even mild stress. New research shows that establishing both the lignin and suberin barriers in the Arabidopsis endodermis requires phenylpropanoid ...
    • Plant microRNAs: Recent Advances and Future Challenges 

      Debat, Humberto Julio; Ducasse, Daniel Adrian (2014-12)
      MicroRNAs (miRNAs) are small ∼20–24 nt species of non-coding RNAs that modulate plant gene expression by means of gene silencing through sequence-specific inhibition of target mRNAs. MiRNAs derive from pol-II transcription ...
    • Plant Tolerance Mechanisms to Soil Salinity Contribute to the Expansion of Agriculture and Livestock Production in Argentina 

      Taleisnik, Edith; Rodríguez, Andrés Alberto; Bustos, Dolores Angela; Luna, Dario Fernando (Springer, 2021)
      This chapter addresses salt tolerance mechanisms in crops and woody species cultivated in Argentina, highlighting the contribution of local research to these topics. Work on forages and woody species represents approximately ...
    • 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 ...
    • Plataforma virtual con información para el manejo de enfermedades de maíz 

      Torrico Ramallo, Ada Karina; Guerra, Gustavo; Uhart, S.; Laguna, Irma Graciela; Barontini, Javier Miguel; Ruiz Posse, Agustina María; De Rossi, R.L.; Guerra, F.A.; Plazas, M.C.; Gimenez, Maria De La Paz (Brevant Semillas, 2020-10)
      A través de un proyecto COFECYT, desde octubre de 2019, se están llevando a cabo acciones tendientes a formar una plataforma virtual con información sobre las diferentes enfermedades del cultivo del maíz para la provincia ...
    • Plataforma virtual sobre enfermedades en el cultivo de maíz en la provincia de Córdoba 

      Guerra, G.D.; Torrico Ramallo, Ada Karina; Barontini, Javier Miguel; Ruiz Posse, Agustina María; De Rossi, R.L.; Guerra, F.A.; Plazas, M.C.; Laguna, Irma Graciela; Uhart, S.; Gimenez, Maria De La Paz (Universidad Nacional del Noroeste de la Provincia de Buenos Aires -UNNOBA, 2022-10-19)
      En maíz, la información de presencia, incidencia y severidad de enfermedades es clave en la decisión de siembra y elección de híbridos, así como para el manejo del cultivo.
    • Plum Pox virus in japanese plum from Argentina: serological detection and molecular characterization of an isolate from cv. Red Beauty 

      Dal Zotto, Angelica; Balzarini, Mónica Graciela; Raigon, Juan Manuel; Rossini, Mirta Noemi; Ducasse, Daniel Adrian (Wiley, 2014-01)
      A Plum pox virus (PPV) isolate detected in a Japanese plum orchard in Pocito (San Juan, Argentina) was transmitted mechanically to Prunus tomentosa and Nicotiana benthamiana. DAS-ELISA and DASI-ELISA indicated the virus ...
    • Polyamines and flavonoids : key compounds in mycorrhizal colonization of improved and unimproved soybean genotypes 

      Salloum, María Soraya; Menduni, Maria Florencia; Benavides, María Patricia; Larrauri, Mariana; Luna, Celina Mercedes; Silvente, Sonia Teresa (Springer, 2018-11)
      Modern breeding programs might have caused a reduction in plant responsiveness to arbuscular mycorrhizal fungi (AMF). Flavonoids and polyamines (PAs) are hypothesized to play a role in this symbiosis. We tested the effects ...