Teratosphaeria pseudoeucalypti, new cryptic species responsible for leaf blight of Eucalyptus in subtropical and tropical Australia

V Andjic; Geoff S Pegg; A J Carnegie; A Callister; G E S Hardy; T I Burgess

doi:10.1111/j.1365-3059.2010.02308.x

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Teratosphaeria pseudoeucalypti, new cryptic species responsible for leaf blight of Eucalyptus in subtropical and tropical Australia

Journal article

Peer reviewed

Teratosphaeria pseudoeucalypti, new cryptic species responsible for leaf blight of Eucalyptus in subtropical and tropical Australia

V Andjic, Geoff S Pegg, A J Carnegie, A Callister, G E S Hardy and T I Burgess

Plant Pathology, Vol.59(5), pp.900-912

2010

DOI: https://doi.org/10.1111/j.1365-3059.2010.02308.x

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Abstract

clone evaluation

DNA sequence

Eucalyptus spp.

haplotypes

kirramyces leaf blight

phylogeographic analysis

Sub-tropical and tropical plantations of Eucalyptus grandis hybrids in eastern Australia have been severely affected by anamorphs of Teratosphaeria (formerly Kirramyces) causing a serious leaf blight disease. Initially the causal organism in Queensland, Australia, was identified as Teratosphaeria eucalypti, a known leaf parasite of endemic Eucalyptus spp. However, some inconsistencies in symptoms, damage and host range suggested that the pathogen in Queensland may be a new species. Isolates of T. eucalypti from throughout its known endemic range, including Queensland and New Zealand, where it is an exotic pathogen, were compared using multiple gene phylogenies. Phylogenetic studies revealed that the species responsible for leaf blight in Queensland represents a new taxon, described here as Teratosphaeria pseudoeucalypti. While the DNA sequence of T. pseudoeucalypti was more similar to T. eucalypti, the symptoms and cultural characteristics resembled that of T. destructans. The impact of this disease in central Queensland has increased annually and is the major threat to the eucalypt plantation industry in the region. © 2010 The Authors. Plant Pathology © 2010 BSPP.

Details

Title: Teratosphaeria pseudoeucalypti, new cryptic species responsible for leaf blight of Eucalyptus in subtropical and tropical Australia
Authors: V Andjic (Author) - Murdoch University
Geoff S Pegg (Author) - University of Queensland
A J Carnegie (Author) - NSW Department of Primary Industries
A Callister (Author) - University of Melbourne
G E S Hardy (Author) - Murdoch University
T I Burgess (Author) - Murdoch University
Publication details: Plant Pathology, Vol.59(5), pp.900-912
Publisher: Wiley-Blackwell Publishing Ltd.
Date published: 2010
DOI: 10.1111/j.1365-3059.2010.02308.x
ISSN: 0032-0862
Organisation Unit: University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99449266102621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Agronomy; Plant Sciences