<i>Ceratocystis fagacearum</i>and<i>C. piceae</i>on the Surfaces of Free-Flying and Fungus-Mat-Inhabiting Nitidulids

Juzwik, Jennifer; French, D. W.

doi:10.1094/phyto-73-1164

Cited by 63 publications

(46 citation statements)

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“…After infection of healthy trees through wounds or root grafts, the fungus forms pressure pads under the bark that lead to cracks in the bark, exposing mats of mycelium and fruiting structures, attractive to fungus-feeding arthropods such as nitidulid beetles that then act as vectors of the fungus (Juzwik and French 1983, Harrington 2009, Juzwik et al 2011. These insects move to fresh wounds on trees perpetuating the infection cycle.…”

Section: Discussionmentioning

confidence: 99%

“…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. Shigo 1958, Cobb et al 1965, Peplinksi and Merrill 1974, Gibbs and French 1980, Juzwik and French 1983, Appel et al 1990, Kile 1993, Gibbs 2003, Juzwik et al 2008, 2011. A search on 26 August 2017 for C. fagacearum in Google Scholar and Google respectively yielded 1940 and 119000 hits, while the name Ch.…”

Section: Mycobank Mb822520mentioning

confidence: 99%

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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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Section: Discussionmentioning

confidence: 99%

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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“…The only other report of an Ophiostoma spp. associated with nitidulids beetles is O. piceae that was isolated from the surface of seven free-flying nitidulid beetles in the United States of America (Juzwik and French 1983). In the southern Hemisphere, the only report of O. quercus from insects is from non-native bark beetles infesting pine trees in South Africa (Zhou et al 2001 Africa.…”

Section: Taxonomymentioning

confidence: 99%

A diverse assemblage of Ophiostoma species, including two new taxa on eucalypt trees in South Africa

et al. 2011

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Fungi in the Ophiostomatales include important pathogens of trees as well as agents of wood stain, reducing the economic value of timber. They rely on insects, such as bark beetles, for dispersal and are commonly associated with wounds on trees. Although Ophiostoma spp. Have been reported from eucalypt wood chips in South Africa, very little is known about the diversity of the Ophiostomatales or their insect associates, on plantation grown Eucalyptus spp. The aim of this study was to consider the diversity and distribution of the Ophiostomatales infecting fresh wounds on Eucalyptus trees in the country. Additionally, knowledge regarding their association with nitidulid beetles, which have previously been shown to carry Ophiostoma spp. was sought. Surveys were conducted in five provinces were Eucalyptus spp. are commonly grown and the fungi collected were identified using morphological comparisons and multigene sequence phylogenies. Of the 139 isolates collected, five Ophiostoma spp. were identified including O. quercus, O. tsotsi and O. tasmaniense. These were from cut stumps as well as the nitidulid beetles Brachypeplus depressus and Carpophilus spp. In addition, two new taxa in the O. stenoceras -Sporothrix schenkii complex were identified from Eucalyptus trees infested by Phoracantha semipunctata. The two new taxa are described as O. candidus sp. nov., and O. canescensis sp. nov., respectively. Results of this study clearly show that the diversity and ecology of Ophiostoma spp. on Eucalyptus trees in South Africa is poorly understood and further studies are required to determine the possible economic relevance of these fungi.

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“…Infected red oaks, however, can spread oak wilt disease to live oaks in this manner. The disease does not spread among red oaks through the root structure, since red oaks normally develop as individual trees without common root linkages (Juzwik and French 1983).…”

Section: Patterns Of Disease Transmissionmentioning

confidence: 99%

Environmental management of oak wilt disease in central texas

Davies

1992

Environmental Management

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Ceratocystis fagacearumandC. piceaeon the Surfaces of Free-Flying and Fungus-Mat-Inhabiting Nitidulids

Cited by 63 publications

References 0 publications

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

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

A diverse assemblage of Ophiostoma species, including two new taxa on eucalypt trees in South Africa

Environmental management of oak wilt disease in central texas

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