2008
DOI: 10.1071/ap08063
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Discovery of the eucalypt pathogenQuambalaria eucalyptiinfecting a non-Eucalyptushost in Uruguay

Abstract: 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 r… Show more

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Cited by 16 publications
(18 citation statements)
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“…There are a growing number of Eucalyptus pathogens that have undergone host jumps (Slippers et al 2005) from native Myrtaceae and Melastomataceae (Myrtales) in countries where Eucalyptus spp. have been planted as exotics (Wingfield 2003;Glen et al 2007) Many of these examples are from South America including Uruguay (Pérez 2008). The most recent examples are Quambalaria eucalypti (Pérez et al 2008), Neofusicoccum eucalyptorum (Pérez et al 2009b), Puccinia psidii (Pérez et al 2010a) and members of Botryosphaeriaceae (Pérez et al 2010b).…”
Section: Discussionmentioning
confidence: 96%
“…There are a growing number of Eucalyptus pathogens that have undergone host jumps (Slippers et al 2005) from native Myrtaceae and Melastomataceae (Myrtales) in countries where Eucalyptus spp. have been planted as exotics (Wingfield 2003;Glen et al 2007) Many of these examples are from South America including Uruguay (Pérez 2008). The most recent examples are Quambalaria eucalypti (Pérez et al 2008), Neofusicoccum eucalyptorum (Pérez et al 2009b), Puccinia psidii (Pérez et al 2010a) and members of Botryosphaeriaceae (Pérez et al 2010b).…”
Section: Discussionmentioning
confidence: 96%
“…These fungi are all known on Eucalyptus leaves in countries other than Uruguay and it seems most likely that they were introduced into Uruguay on Eucalyptus and have subsequently undergone a host shift to native tree species. Such host shifts have recently been shown in Uruguay for Quambalaria leaf disease caused by Q. eucalypti (Perez et al 2008) and Neofusicoccum eucalyptorum (Perez et al 2009c). This is, however, the first evidence of species associated with MLD of Eucalyptus undergoing such host shifts.…”
Section: Discussionmentioning
confidence: 80%
“…So far, the non‐eucalypt hosts known for Q. eucalypti are Myrceugenia glaucescens (Pérez et al., ) and a single Corymbia hybrid referred to by Pegg et al. ().…”
Section: Discussionmentioning
confidence: 99%
“…; Pérez et al. ). The most common visible signs of the fungus are white masses of powdery spores on leaf lesions and stems (Alfenas et al.…”
Section: Introductionmentioning
confidence: 97%
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