Now showing items 1-3 of 3

    • Changes in grapevine DNA methylation and polyphenols content induced by solar ultraviolet- B radiation, water deficit and abscisic acid spray treatments. 

      Marfil, Carlos; Ibañez, Verónica; Alonso, Rodrigo; Varela, Anabella; Bottini, Rubén; Masuelli, Ricardo; Fontana, Ariel; Berli, Federico (Comité Editorial Plant Physiology and Biochemistry., 2019-02)
      ARTÍCULO PUBLICADO EN REVISTA EXTERNA. Environment and crop management shape plant's phenotype. Argentinean highaltitude vineyards are characterized by elevated solar ultraviolet-B radiation (UV B) and water deficit (D) that enhance enological quality for red winemaking. These signals promote phenolics accumulation in leaves and berries, being the responses mediated by abscisic acid (ABA). DNA methylation is an epigenetic mechanism that regulates gene expression and may affect grapevine growth, development and acclimation, since methylation patterns are mitotically heritable. Berry skins low ...
    • Girdling of shoots at flowering reduces shatter in grapevine cv. Malbec. 

      Carrillo, Natalia; Piccoli, Patricia; Bottini, Rubén; Rodríguez, José; Berli, Federico (Comité editorial Australian Journal of Grape and Wine Research, 2020-02-17)
      ARTÍCULO PUBLICADO EN REVISTA EXTERNA. Background and Aims Some grapevine cultivars such as Malbec have unstable yield, due to poor fruitset or fruitlet abscission. The phenomenon is known as ‘shatter’ and this study aims to explore the potential of applying the shoot girdling technique at flowering, to direct the carbohydrate partitioning towards inflorescences and reduce shatter. Methods and Results Fruitful Malbec shoots were girdled above the apical bunch, below the basal bunch, double girdled or not girdled (Control) during 2017 and 2018. Most vegetative growth parameters were unaffected, ...
    • Plant growth promoting rhizobacteria alleviate stress by AsIII in grapevine. 

      Funes Pinter, Mariano Iván; Salomón, María Victoria; Berli, Federico; Gil, Raúl; Bottini, Rubén; Piccoli, Patricia (Comité Editorial Agriculture, Ecosystems and Environment., 2018-11-15)
      ARTÍCULO PUBLICADO EN REVISTA EXTERNA. Arsenic (As) in the environment is an increasing problem all over the world that limits crop yield, and therefore, remediation strategies like inoculation with plant growth promoting rhizobacteria (PGPR) are necessary. The objective of the current study was to assess PGPR ability to reduce AsIII toxicity in grapevine (Vitis vinifera L. cv. Malbec). Two-year old grape plant-sprouts grown in 10 L pots were inoculated weekly with Bacillus licheniformis, Micrococcus luteus, Pseudomonas fluorescens, a consortium of the three strains, or water (control). Plants ...