Botryosphaeriaspp. associated with eucalypts in Western Australia, including the description ofFusicoccum macroclavatumsp. nov.
- 1 January 2005
- journal article
- research article
- Published by Springer Science and Business Media LLC in Australasian Plant Pathology
- Vol. 34 (4), 557-567
- https://doi.org/10.1071/ap05073
Abstract
Botryosphaeria spp. are common endophytes and canker pathogens of many woody plants including eucalypts. Eucalyptus globulus, a species endemic to eastern Australia, dominates the plantation industry in Western Australia. Plantations are often adjacent to remnant native eucalypt forest and each vegetation type (plantation or forest) could harbour pathogens to which the other has not been exposed. A survey of Botryosphaeria spp. associated with E. globulus and native Eucalyptus spp. in Western Australia revealed four distinct culture morphologies to be present among 147 isolates. Representative isolates of each type were characterised based upon morphological features and comparisons of a combined DNA dataset including the internal transcribed spacer, a part of the β-tubulin gene and part of the elongation factor 1α (EF-1α) gene. The majority of the isolates (95%) were Botryosphaeria australis. of the remaining isolates, one was Botryosphaeria parva, three were Dichomera eucalypti (an anamorph of an unknown Botryosphaeria sp.) and the remaining four isolates were identified as representative of a new species described here as Fusicoccum macroclavatum sp. nov. The new species resided alone in a well supported clade and differed morphologically from other Fusicoccum spp. by having large, predominantly elongate-clavate conidia. Fusicoccum macroclavatum sp. nov. was the most pathogenic of the four species, and its rare occurrence only on eucalypt species endemic to eastern Australia suggests that this species has been introduced to Western Australia.Keywords
This publication has 37 references indexed in Scilit:
- Identification and pathogenicity ofBotryosphaeriaspecies associated with grapevine decline in Western AustraliaAustralasian Plant Pathology, 2005
- Botryosphaeria corticola,sp. nov. onQuercusspecies, with notes and description ofBotryosphaeria stevensiiand its anamorph,Diplodia mutilaMycologia, 2004
- Mycosphaerella species associated with Eucalyptus in south-western Australia: new species, new records and a keyMycological Research, 2003
- Foliar diseases of Eucalyptus spp. grown for ornamental cut foliageAustralasian Plant Pathology, 2003
- Benefits and risks of biotic exchange between Eucalyptus plantations and native Australian forestsAustral Ecology, 2001
- Botryosphaeria dothidea endophytic in Eucalyptus grandis and Eucalyptus nitens in South AfricaForest Ecology and Management, 1996
- Combining data in phylogenetic analysisTrends in Ecology & Evolution, 1996
- TESTING SIGNIFICANCE OF INCONGRUENCECladistics, 1994
- Confidence Limits on Phylogenies: An Approach Using the BootstrapEvolution, 1985
- Stem cankers ofEucalyptus salignain Western AustraliaAustralian Forestry, 1985