Now showing items 1-4 of 4

    • First Report of Xylella fastidiosa in Avocado in Costa Rica 

      Montero Astúa, Mauricio; Saborío Rodríguez, Guido Alonso; Chacón Díaz, Carlos; Garita Salazar, Laura Cristina; Villalobos Muller, William; Moreira Carmona, Lisela; Hartung, John; Rivera Herrero, Carmen (2008-01)
      Since the late 1990s, chlorotic mottling, marginal scorch, deformation of leaves, defoliation, shortening of internodes, and branch dieback have been observed in avocado trees (Persea americana Mill.) in Costa Rica. The ...
    • Genetic Diversity of Xylella fastidiosa Strains from Costa Rica, São Paulo, Brazil, and United States 

      Montero Astúa, Mauricio; Hartung, John; Aguilar Alvarez, Estela Yamileth; Chacón Díaz, Carlos; Li, Wenbin; Albertazzi Castro, Federico José; Rivera Herrero, Carmen (2007-10)
      The diversity of 42 Xylella fastidiosa strains from Costa Rica, São Paulo, Brazil, and the United States were analyzed using the sequence of the 16S rRNA gene by variable number of tandem repeat (VNTR) fragment analysis ...
    • Isolation and molecular characterization of Xylella fastidiosa from coffee plants in Costa Rica. 

      Aguilar Alvarez, Estela Yamileth; Rodríguez Solís, Carlos Mario; Garita Salazar, Laura Cristina; Villalobos Muller, William; Moreira Carmona, Lisela; Hartung, John; Rivera Herrero, Carmen; Montero Astúa, Mauricio; Chacón Díaz, Carlos (2008-10)
      Coffee plants exhibiting a range of symptoms including mild to severe curling of leaf margins, chlorosis and deformation of leaves, stunting of plants, shortening of internodes, and dieback of branches have been reported ...
    • Population Genomic Analysis of a Bacterial Plant Pathogen: Novel Insight into the Origin of Pierce’s Disease of Grapevine in the U.S. 

      Nunney, Leonard; Yuan, Xiaoli; Bromley, Robin; Hartung, John; Stouthamer, Richard; Moreira Carmona, Lisela; Montero Astúa, Mauricio; Ortiz Arias, Beatriz (2010-11)
      Invasive diseases present an increasing problem worldwide; however, genomic techniques are now available to investigate the timing and geographical origin of such introductions. We employed genomic techniques to demonstrate ...