The genus <i>Ceratocystis</i> in Ontario

Griffin, H. D.

doi:10.1139/b68-094

Cited by 95 publications

(80 citation statements)

References 18 publications

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“…It is a well-known sapwood colonising fungus that was first described in Norway from ground wood pulp (Robak 1932), but are now known from several hardwood and coniferous hosts, mostly in the Northern Hemisphere (Griffin 1968). …”

Section: Discussionmentioning

confidence: 99%

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Wounds on Rapanea melanophloeos provide habitat for a large diversity of Ophiostomatales including four new species

Musvuugwa

Beer

Duong

et al. 2016

Antonie van Leeuwenhoek

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Rapanea melanophloeos, an important canopy tree in Afromontane forests, is commonly utilised for medicinal bark harvesting. Wounds created from these activities provide entrance for many fungi, including arthropod-associated members of the Ophiostomatales and Microascales (ophiostomatoid fungi). In this study we assess the diversity of wound-associated Ophiostomatales on storm-damaged R. itsvoense sp. nov., S. rapaneae sp. nov., S. utae) while O. noisomeae groups basal in the Ophiostomatales alongside the S. lignivora complex and Graphilbum. In addition to other taxa known from this host, the present study shows that there is a rich, yet still poorly explored, diversity of Ophiostomatales associated with R. melanophloeos in Afromontane forests. More taxa are likely to be discovered with increased research effort. These must be assessed in terms of pathogenicity towards this ecologically and economically important tree.

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Section: Discussionmentioning

confidence: 99%

“…Although this species causes gray staining of pine wood (Käärik 1980), it is not considered economically important (Griffin 1968).…”

Section: Discussionmentioning

confidence: 99%

Wounds on Rapanea melanophloeos provide habitat for a large diversity of Ophiostomatales including four new species

Musvuugwa

Beer

Duong

et al. 2016

Antonie van Leeuwenhoek

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“…This species has been recorded by far the most often of all species in the complex, and also from many other hardwood genera and species in North America (Appel et al 1990;Davidson 1935;Griffin 1968), Europe (Gregor 1932) and Japan (Aoshima 1965). The fungus has, furthermore, been described from conifers such as pine, spruce, and fir from North and Central America (Davidson 1935; Zhou et al 2004b), Europe (Mathiesen-Käärik 1953;Romón et al 2007), Japan (Aoshima 1965), New Zealand (Thwaites et al 2005), and South Africa (Zhou et al 2006).…”

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confidence: 84%

A new Ophiostoma species from loblolly pine roots in the southeastern United States

et al. 2010

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During the course of a survey of fungi in loblolly pine (Pinus taeda) roots in Georgia, USA, a species of Ophiostoma morphologically similar to O. pluriannulatum, was isolated. Morphological characteristics and DNA sequence comparisons were used to identify the fungus. The isolates produced perithecia with unusually long necks similar to those of O. pluriannulatum but they had few or no annuli. DNA sequences for the ribosomal internal transcribed spacer regions 1 and 2 were identical to those of O. pluriannulatum. Sequence data of the β-tubulin gene region revealed the absence of intron 4 and presence of intron 5, distinguishing the isolates from O. pluriannulatum, which has intron 4 but not intron 5. Phylogenetic analyses of the β-tubulin sequences showed that the isolates from loblolly pine roots grouped together in a lineage distinct from O. multiannulatum and O. subannulatum, both of which lack intron 4 and have intron 5. The fungus is consequently described as O. sparsiannulatum sp. nov., a novel taxon in the O. pluriannulatum complex.

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“…Based on the one fungus one name principles adopted in the Melbourne Code (Hawksworth 2011, McNeill et al 2012, the older basionym of the oak wilt pathogen, Chalara quercina (Henry 1944), has nomenclatural priority over Endoconidiophora fagacearum, the name Bretz (1952) assigned to the sexual state of the fungus. However, since Hunt (1956) treated the fungus as Ceratocystis fagacearum, the latter name were given preference under the dual nomenclature system in all major taxonomic works on the genus to date (Griffin 1968, De Hoog 1974, Nag Raj and Kendrick 1975, Upadhyay 1981, Seifert et al 1993, Paulin-Mahady et al 2002, Harrington 2009, De Beer et al 2013b, Mayers et al 2015. During the course of the past approximately 60 years, the name Ceratocystis fagacearum has also been adopted by plant pathologists and mycologists working on all aspects of the important disease known as oak wilt and the biology of the fungus (e.g.…”

Section: Mycobank Mb822520mentioning

confidence: 99%

Bretziella, a new genus to accommodate the oak wilt fungus, Ceratocystis fagacearum (Microascales, Ascomycota)

Beer¹,

Marincowitz²,

Duong³

et al. 2017

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Recent reclassification of the Ceratocystidaceae (Microascales) based on multi-gene phylogenetic inference has shown that the oak wilt fungus Ceratocystis fagacearum does not reside in any of the four genera in which it has previously been treated. In this study, we resolve typification problems for the fungus, confirm the synonymy of Chalara quercina (the first name applied to the fungus) and Endoconidiophora fagacearum (the name applied when the sexual state was discovered). Furthermore, the generic placement of the species was determined based on DNA sequences from authenticated isolates. The original specimens studied in both protologues and living isolates from the same host trees and geographical area were examined and shown to represent the same species. A lectotype was designated for Chalara quercina and Endoconidiophora fagacearum and an epitype linked to a living ex-epitype isolate was designated. Phylogenetic analyses confirmed that the species resides in a well-supported monophyletic lineage in the Ceratocystidaceae, distinct from all other genera in the family. The new genus Bretziella is described to accommodate the oak wilt fungus.

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The genus Ceratocystis in Ontario

Cited by 95 publications

References 18 publications

Wounds on Rapanea melanophloeos provide habitat for a large diversity of Ophiostomatales including four new species

Wounds on Rapanea melanophloeos provide habitat for a large diversity of Ophiostomatales including four new species

A new Ophiostoma species from loblolly pine roots in the southeastern United States

Bretziella, a new genus to accommodate the oak wilt fungus, Ceratocystis fagacearum (Microascales, Ascomycota)

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