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Ophiostoma species (Ophiostomatales, Ascomycota), including two new taxa on eucalypts in Australia


Nkuekam, GK and de Beer, ZW and Wingfield, MJ and Mohammed, C and Carnegie, AJ and Pegg, GS and Roux, J, Ophiostoma species (Ophiostomatales, Ascomycota), including two new taxa on eucalypts in Australia, Australian Journal of Botany, 59, (3) pp. 283-297. ISSN 0067-1924 (2011) [Refereed Article]

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Copyright 2011 CSIRO

DOI: doi:10.1071/BT10231


The genus Ophiostoma accommodates ascomycetes in the order Ophiostomatales, some of which are important pathogens of trees. Although these fungi are well known in the northern hemisphere, very little is known regarding their occurrence or importance in Australia. The aim of the present study was to collect Ophiostoma spp. infecting wounds on Eucalyptus spp. in Australia, where most of these trees are native. Collections were made in three states of Australia and the isolates were identified using morphological and multigene-sequence comparisons. Of the 76 isolates collected, two previously unknown species of Ophiostoma were found and these are described here as O. tasmaniense sp. nov. and O. undulatum sp. nov. In addition, O. quercus (Georgev.) Nannf. and O. tsotsi Grobbelaar, Beer & M.J.Wingf. are reported for the first time from eucalypts in Australia and the distribution of Pesotum australiae Kamgan Nkuekam, Jacobs& Wingfield is expanded to include eucalypts in Tasmania. In pathogenicity tests, very small lesions were observed in both the bark and xylem of E. grandis (Hill) Maiden trees, suggesting that none of the collected species is a pathogen of Eucalyptus spp.

Item Details

Item Type:Refereed Article
Keywords:Ophiostoma, Ascomycota, ascomycetes, eucalypt, fungus, pathogen
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Forestry sciences
Research Field:Forest health and pathology
Objective Division:Plant Production and Plant Primary Products
Objective Group:Forestry
Objective Field:Native forests
UTAS Author:Mohammed, C (Professor Caroline Mohammed)
ID Code:78068
Year Published:2011
Web of Science® Times Cited:14
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2012-06-13
Last Modified:2015-02-07
Downloads:1 View Download Statistics

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