Antonie van Leeuwenhoek

, Volume 101, Issue 2, pp 217–241 | Cite as

Ceratocystis species, including two new species associated with nitidulid beetles, on eucalypts in Australia

  • Gilbert Kamgan Nkuekam
  • Michael J. Wingfield
  • Caroline Mohammed
  • Angus J. Carnegie
  • Geoff S. Pegg
  • Jolanda Roux
Original Paper


The genus Ceratocystis includes important fungal pathogens of trees, including Eucalyptus spp. Ironically, very little is known regarding the diversity or biology of Ceratocystis species on Eucalyptus species in Australia, where most of these trees are native. The aim of this study was to survey for Ceratocystis spp., and their possible insect associates, on eucalypts in Australia and thus to establish a foundation of knowledge regarding these fungi on the continent. Collections were made in three states of Australia from wounds on trees, as well as from nitidulid beetles associated with these wounds. Ceratocystis spp. were identified based on morphology and multigene sequence comparisons. Of the 54 isolates obtained, two previously unknown species of Ceratocystis were found and these are described here as Ceratocystis corymbiicola sp. nov. and Ceratocystis tyalla sp. nov. Furthermore, the distribution of Ceratocystis pirilliformis is expanded to include Eucalyptus spp. in Tasmania.


Brachypeplus Carpophilus Corymbia Eucalyptus Fungal diversity Plantation forestry 



We thank the DST/NRF Center of Excellence in Tree Health Biotechnology (CTHB), National Research Foundation of South Africa (NRF), the THRIP Initiative of the Department of Trade and Industry (THRIP/DST), members of the Tree Protection Co-operative Programme (TPCP) and the University of Pretoria for funding and the facilities to undertake this study. We are also most grateful to the CSIRO Division of Forestry in Hobart (Tasmania), the New South Wales Department of Primary Industry in Sydney and the Queensland Department of Primary Industry and Fisheries in Brisbane for hosting G. Kamgan Nkuekam and providing the opportunity to collect specimens in Australia. Prof. Goeneveld and Dr. Van der Linde from the Department of Statistics are thanked for their assistance with the statistical analyses. Dr. Andrew Cline from the USA is thanked for identifying insects collected in this study. We further thank Dr. Hugh Glen who provided the Latin diagnosis and suggested the names for the new taxa.

Supplementary material

10482_2011_9625_MOESM1_ESM.docx (47 kb)
Supplementary material 1 (DOCX 46 kb)


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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Gilbert Kamgan Nkuekam
    • 1
  • Michael J. Wingfield
    • 1
  • Caroline Mohammed
    • 2
  • Angus J. Carnegie
    • 3
  • Geoff S. Pegg
    • 4
  • Jolanda Roux
    • 1
  1. 1.Department of Microbiology and Plant Pathology, DST/NRF Centre of Excellence in Tree Health Biotechnology, Forestry and Agricultural Biotechnology Institute (FABI)University of PretoriaPretoriaSouth Africa
  2. 2.School of Agricultural ScienceUniversity of TasmaniaHobartAustralia
  3. 3.Forest Science Centre, NSW Department of Primary IndustriesBeecroftAustralia
  4. 4.Agric-Science QueenslandDutton ParkAustralia

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