Journal article
Luteocirrhus shearii gen. sp. nov. (Diaporthales, cryphonectriaceae) pathogenic to proteaceae in the South Western Australian Floristic Region
IMA Fungus, Vol.4(1), pp.111-122
2013
Abstract
Morphological and DNA sequence characteristics of a pathogenic fungus isolated from branch cankers in Proteaceae of the South West Australian Floristic Region elucidated a new genus and species within Cryphonectriaceae (Diaporthales). The pathogen has been isolated from canker lesions in several Banksia species and Lambertia echinata subsp. citrina, and is associated with a serious decline of the rare B. verticillata. Lack of orange pigment in all observed structures except cirrhi, combined with pulvinate to globose black semi-immersed conidiomata with paraphyses, distinguishes the canker fungus from other genera of Cryphonectriaceae. This was confirmed by DNA sequence analysis of the ITS regions, β-tubulin, and LSU genes. The fungus (sexual morph unknown) is described as Luteocirrhus shearii gen. sp. nov. Lesions in seedlings of Banksia spp. following wound inoculation and subsequent recovery confirm Koch’s postulates for pathogenicity. This pathogen of native Proteaceae is currently an emerging threat, particularly toward B. baxteri and B. verticillata.
Details
- Title
- Luteocirrhus shearii gen. sp. nov. (Diaporthales, cryphonectriaceae) pathogenic to proteaceae in the South Western Australian Floristic Region
- Authors/Creators
- C. Crane (Author/Creator)T.I. Burgess (Author/Creator)
- Publication Details
- IMA Fungus, Vol.4(1), pp.111-122
- Publisher
- International Mycological Association
- Identifiers
- 991005540604107891
- Copyright
- © 2013 International Mycological Association
- Murdoch Affiliation
- School of Veterinary and Life Sciences
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.97 Plant Pathology
- 3.97.1173 Hyphomycetes
- Web Of Science research areas
- Mycology
- ESI research areas
- Plant & Animal Science