Teratosphaeria pseudonubilosa sp. nov., a serious Eucalyptus leaf pathogen in the Teratosphaeria nubilosa species complex
- 237 Downloads
Teratosphaeria nubilosa is one of the most important pathogens of Eucalyptus in commercial plantations. A recent study has shown that the fungus, hitherto treated under this name, represents a complex of two species. Teratosphaeria pseudonubilosa sp. nov. is, therefore, described as a closely related and morphologically similar, sister species to T. nubilosa. T. pseudonubilosa infects leaves of commercially propagated and native E. globulus trees in forests of Victoria and Tasmania (Australia), where it is native. It has also been introduced into Western Australia and New Zealand where it causes serious defoliation of susceptible trees. A revised geographical distribution of T. nubilosa sensu stricto and T. pseudonubilosa is provided to assist in the future management of the diseases that they cause.
KeywordsMycosphaerella leaf disease Forest pathogen Taxonomy Eucalyptus Teratosphaeria nubilosa
Taxonomic noveltyTeratosphaeria pseudonubilosa sp. nov. G. Pérez & Carnegie
We thank the National Research Foundation (NRF), members of the Tree Protection Co-operative Programme (TPCP), the THRIP initiative of the Department of Trade and Industry and the Department of Science and Technology (DST)/NRF Centre of Excellence in Tree Health Biotechnology (CTHB), South Africa, for financial support. Katherine Taylor, Ian Smith and David Smith are thanked for their contribution in sample collections and the CRC for Forestry for financial support when G.P. was collecting specimens in Australia.
- Cooke MC (1891) Australian fungi. Grevillea 19:60–62Google Scholar
- Crous PW (1998) Mycosphaerella spp. and their anamorphs associated with leaf spot diseases of Eucalyptus. Mycol Mem 21:1–170Google Scholar
- Crous PW, Groenewald JZ, Mansilla PJ, Hunter GC, Wingfield MJ (2004) Phylogenetic reassessment of Mycosphaerella spp. and their anamorphs occurring on Eucalyptus. Stud Mycol 50:195–214Google Scholar
- Dick M (1982) Leaf-inhabiting fungi of eucalypts in New Zealand. N Z J For Sci 12:525–537Google Scholar
- Hunter GC (2007) Taxonomy, phylogeny and population biology of Mycosphaerella species occurring on Eucalyptus, Department of Microbiology and Plant Pathology. University of Pretoria, Pretoria, p 192Google Scholar
- Mohammed CL, Wardlaw T, Smith A, Pinkard E, Battaglia M, Glen M, Tommerup I, Potts B, Vaillancourt R (2003) Mycosphaerella leaf diseases of temperate eucalypts around the Southern Pacific Rim. N Z J For Sci 33:362–372Google Scholar
- Park RF, Keane PJ, Wingfield MJ, Crous PW (2000) Fungal diseases of eucalypt foliage. In: Keane PJ, Kile GA, Podger FD, Brown BN (eds) Diseases and pathogens of eucalypts. CSIRO, Australia, pp 153–239Google Scholar
- Pérez G, Slippers B, Wingfield BD, Finkenauer E, Wingfield MJ (2009b) Mycosphaerella leaf disease (MLD) outbreak on Eucalyptus globulus in Brazil caused by Teratosphaeria (Mycosphaerella) nubilosa. Phytopathol Mediterr 48:302–306Google Scholar
- Rayner RW (1970) A mycological colour chart. Mycological Institute and British Mycological Society, KewGoogle Scholar
- Swofford DL (2002) PAUP*: phylogenetic analysis using parsimony (*and other methods). Version 4.0b10. Sinauer Associates, SunderlandGoogle Scholar