Abstract
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, Z.W.de 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.
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Claims 7
Claim · model-written summary
Two previously unknown Ophiostoma species were found among 76 isolates.
- Taxon
- Eucalyptus spp.
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Eucalyptuse1 - Interactor
- Ophiostoma
Ophiostomae0pathogen - Outcome
- two previously unknown species of Ophiostomae0
- Value
- twoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“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.”
e1“Ophiostoma spp. infecting wounds on Eucalyptus spp. in Australia”
Claim · model-written summary
O. quercus was reported from Australian eucalypts for the first time.
- Taxon
- eucalyptse0
- Interactor
- O. quercusOphiostoma quercuse0pathogen
- Outcome
- reported for the first timee0
- Setting
- Australiae0
Verbatim
e0“O. quercus (Georgev.) Nannf. and O. tsotsi Grobbelaar, Z.W.de Beer & M.J.Wingf. are reported for the first time from eucalypts in Australia”
Claim · model-written summary
O. tsotsi was reported from Australian eucalypts for the first time.
- Taxon
- eucalyptse0
- Interactor
- O. tsotsiOphiostoma tsotsie0pathogen
- Outcome
- reported for the first timee0
- Setting
- Australiae0
Verbatim
e0“O. quercus (Georgev.) Nannf. and O. tsotsi Grobbelaar, Z.W.de Beer & M.J.Wingf. are reported for the first time from eucalypts in Australia”
Claim · model-written summary
Pesotum australiae distribution was extended to eucalypts in Tasmania.
- Taxon
- eucalyptse0
- Interactor
- Pesotum australiaeOphiostoma australiaee0pathogen
- Outcome
- distribution of Pesotum australiae Kamgan Nkuekam, Jacobs & Wingfield is expandede0
- Setting
- Tasmaniae0
Verbatim
e0“the distribution of Pesotum australiae Kamgan Nkuekam, Jacobs & Wingfield is expanded to include eucalypts in Tasmania”
Claim · model-written summary
Pathogenicity tests produced very small bark lesions on E. grandis.
- Taxon
- E. grandis
Eucalyptus grandise0 - Organ / stage
- barke0
- Outcome
- very small lesionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“very small lesions were observed in both the bark and xylem of E. grandis (Hill) Maiden trees”
Claim · model-written summary
Pathogenicity tests produced very small xylem lesions on E. grandis.
- Taxon
- E. grandisEucalyptus grandise0
- Organ / stage
- xyleme0
- Outcome
- very small lesionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“very small lesions were observed in both the bark and xylem of E. grandis (Hill) Maiden trees”
Claim · model-written summary
The authors suggest none of the collected species is pathogenic to Eucalyptus.
- Taxon
- Eucalyptus spp.Eucalyptuse0
- Outcome
- none of the collected species is a pathogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“suggesting that none of the collected species is a pathogen of Eucalyptus spp.”