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Australasian Plant Pathology

, Volume 37, Issue 6, pp 600–604 | Cite as

Discovery of the eucalypt pathogen Quambalaria eucalypti infecting a non-Eucalyptus host in Uruguay

  • C. A. Pérez
  • Z. W. de Beer
  • N. A. Altier
  • M. J. Wingfield
  • R. A. Blanchette
Article

Abstract

Quambalaria eucalypti, a serious pathogen of Eucalyptus, is believed to be native to Australia and introduced into various southern hemisphere countries, including Uruguay. In this study we record the discovery of Q. eucalypti causing leaf lesions on Myrceugenia glaucescens, a tree native to Uruguay. The identity of the pathogen was confirmed using DNA sequence comparisons of the internal transcribed spacer (ITS) region of the rDNA operon, as well as morphological characteristics. This is the first record of the pathogen on a host other than Eucalyptus. It clearly indicates a disturbing example of an alien invasive pathogen having undergone a host-shift from non-native Eucalyptus to a native tree in Uruguay.

Additional keywords

host jump Myrtaceae plant pathogens 

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Copyright information

© Australasian Plant Pathology Society 2008

Authors and Affiliations

  • C. A. Pérez
    • 1
    • 2
  • Z. W. de Beer
    • 3
  • N. A. Altier
    • 4
  • M. J. Wingfield
    • 3
  • R. A. Blanchette
    • 1
  1. 1.Department of Plant PathologyUniversity of MinnesotaSt PaulUSA
  2. 2.Departamento de Protección VegetalUniversidad de la RepúblicaPaysandúUruguay
  3. 3.Department of Microbiology and Plant Pathology, Forestry and Agricultural Biotechnology InstituteUniversity of PretoriaPretoriaSouth Africa
  4. 4.Instituto Nacional de Investigación AgropecuariaCanelonesUruguay

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