SciELO - Scientific Electronic Library Online

vol.12 issue1Post Mortem Lost of Texture of Fish Meat During Cold StorageA Simple and Cheap 3D Reconstruction System of Embryonic Structures from Serial Sections author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand



Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google


Acta Biológica Colombiana

Print version ISSN 0120-548X


BAUTISTA, GLORIA; MENDOZA, HENRY  and  URIBE, DANIEL. BIOCONTROL OF Rhizoctonia solani IN NATIVE POTATO (Solanum phureja) PLANTS USING NATIVE Pseudomonas fluorescens. Acta biol.Colomb. [online]. 2007, vol.12, n.1, pp.19-32. ISSN 0120-548X.

Rhizoctonia solani is a soil borne phytopathogen associated with reduced plant vigor and tuber production in potato crops. There is a huge interest to search alternatives of biological control management of this disease, because the potato crops in Colombia are the highest consumers of chemical pesticides in Colombia. In order to obtain a fluorescent Pseudomonas strain with the capacity to reduce the disease symptoms produced by R. solani, determination and isolation of the predominant fluorescent Pseudomonas in several potato crops of the main Colombian producing region was done in a previous study. Six different P. fluorescens strains with none, moderate and high fungal growth inhibition capacity in vitro, were used in this study. Despite of the differences found in the dynamics of colonization and colonization capacity, all evaluated strains induced S. phureja growth and reduced disease symptoms produced by R. solani. Our results support the conclusion that association of P. fluorescens strains with S. phureja rhizosphere is a feasible alternative for the management of R. solani symptoms.

Keywords : Rhizobacteria; fluorescent Pseudomonas; antagonism; fluorescent Pseudomonas.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License