Australasian Plant Pathology (2008) 37, 600-604

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C.A. Pérez, Z.W. de Beer, N.A. Altier, M.J. Wingfield and R.A. Blanchette (2008)
Discovery of the eucalypt pathogen Quambalaria eucalypti infecting a non-Eucalyptus host in Uruguay
Australasian Plant Pathology 37 (6), 600-604
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.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Carlos A. Perez, Michael J. Wingfield, Z. Wilhelm de Beer, Robert A. Blanchette

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Quambalaria eucalypti Myrceugenia (crop) Uruguay