Ceratocystis pirilliformis, a New Species from Eucalyptus nitens in Australia

Barnes, Irene; Roux, Jolanda; Wingfield, B. D.; Dudzinski, M. J.; Old, K.M.; Wingfield, Michael J.

doi:10.2307/3762015

Cited by 35 publications

(53 citation statements)

References 10 publications

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“…Wingf., De Beer and Morris, the cause of a serious wilt disease of Acacia mearnsii (Wingfield et al 1996); C. pirilliformis Barnes and M.J. Wingf. from Eucalyptus (Barnes et al 2003); C. cacaofunsta Engelbrecht and Harrington from Theobroma cacao and C. platani Engelbrecht and Harrington from Platanus sp. (Engelbrecht and Harrington 2005).…”

Section: Introductionmentioning

confidence: 99%

Clonal structure of Ceratocystis manginecans populations from mango wilt disease in Oman and Pakistan

Adawi

Barnes

Khan³

et al. 2014

Australasian Plant Pathol.

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Ceratocystis manginecans has recently been described from Oman and Pakistan where the fungus causes a serious wilt disease of mango. In both countries, the disease has moved rapidly throughout mango producing areas leading to the mortality of thousands of mango trees. The disease is associated with the infestation of the wood-boring beetle Hypocryphalus mangiferae that consistently carries C. manginecans. The aim of this study was to consider the population structure of C. manginecans isolated from Oman and Pakistan using microsatellite markers and amplified fragment length polymorphisms (AFLPs).

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Section: Introductionmentioning

confidence: 99%

Clonal structure of Ceratocystis manginecans populations from mango wilt disease in Oman and Pakistan

Adawi

Barnes

Khan³

et al. 2014

Australasian Plant Pathol.

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“…Until the early 2000s, species of Ceratocystis s.s. were primarily defined based on unique morphological characteristics (Barnes et al 2003;Kile et al 1996;Upadhyay 1981;Wingfield et al 1996). In some cases, identification has been supplemented using mating studies which, for example, could be used to confirm the species boundaries between C. fimbriata, C. platani and C. cacaofunesta (Engelbrecht and Harrington 2005;Ferreira et al 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Initial phylogenetic species delineation in Ceratocystis relied heavily on gene genealogies of the 5.8S and surrounding internal transcribed spacer regions 1 and 2 (ITS1 and ITS2) (Barnes et al 2003;Roux et al 2004). In an attempt to increase the resolution of species boundaries, sequences of the β-tubulin 1 (βT 1) and translation elongation factor 1-α (EF 1-α) gene regions have generally been used in combination with the ITS region for species delineation (Van Wyk et al 2012, 2011b.…”

Section: Introductionmentioning

confidence: 99%

Molecular markers delimit cryptic species in Ceratocystis sensu stricto

Fourie

Wingfield

2014

Mycol Progress

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Ceratocystis sensu stricto is a genus of closely related fungi that are mostly plant pathogens. Morphological variation between species in this genus is limited, and species delineation is strongly reliant on phylogenetic inference. Primary support for many of the species is based on the ITS region which, on its own, can be used to delineate all species described in the genus. However, the recent discovery of two ITS types in a single isolate of Ceratocystis questions the use of this marker in taxonomic studies. The aim of this study was to consider the potential use of alternative gene regions to support the species boundaries in this genus. The phylogenetic value of the βT 1 and EF 1-α gene regions, generally used in combination with ITS, were re-evaluated and compared to five single-copy protein coding genes (CAL, RPBII, MS204, FG1093 and Mcm7). As an alternative approach, genome-wide single nucleotide polymorphisms (SNPs) were identified and evaluated as diagnostic markers to distinguish among the species. Fifteen species residing in Ceratocystis were used in this study. None of the protein-coding genes could be used to distinguish all species, but a combination of the βT 1, MS204 and RPBII gene regions resolved 11 of the 15 described species. Unique SNP markers were identified for 13 of the species, and these provided significant additional support for most of the established taxon boundaries. Other than ITS, none of the markers tested could distinguish between C. acaciivora and C. manginecans, and therefore these species are reduced to synonymy, with the name C. manginecans being retained. Results of this study also revealed the likely existence of additional species in Ceratocystis.

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“…Four isolates from Australia were obtained from artificially induced wounds made on the stems of A. mearnsii trees near Cann River in the state of Victoria, Australia, collected as part of a previous study (Barnes et al 2003). All cultures used in this study have been preserved in the culture collection (CMW) of the Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, South Africa and representative cultures have also been deposited with the Centraalbureau voor Schimmelcultures, Utrecht, The Netherlands (CBS).…”

Section: Materials and Methods Culturesmentioning

confidence: 99%

Pesotum australisp. nov. andOphiostoma quercusassociated withAcacia mearnsiitrees in Australia and Uganda, respectively

Nkuekam

Jacobs

Beer

et al. 2008

Austral. Plant Pathol.

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Abstract. Pesotum accommodates synnematal anamorphs of Ophiostoma spp. with sympodially proliferating conidiogenous cells. These fungi are usually closely associated with wounds on trees and the insects that visit them. During tree disease surveys in Uganda, as well as studies of fungi infecting wounds on Acacia mearnsii trees in Uganda and Australia, many isolates resembling species of Pesotum were collected. The aim of this study was to identify these fungi using both morphological and DNA sequence comparisons. The Pesotum, anamorph of O. quercus was the only species collected from multiple collections in Uganda. Collections from Australia represent a new species of Pesotum described here as P. australi sp. nov.

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Ceratocystis pirilliformis, a New Species from Eucalyptus nitens in Australia

Cited by 35 publications

References 10 publications

Clonal structure of Ceratocystis manginecans populations from mango wilt disease in Oman and Pakistan

Clonal structure of Ceratocystis manginecans populations from mango wilt disease in Oman and Pakistan

Molecular markers delimit cryptic species in Ceratocystis sensu stricto

Pesotum australisp. nov. andOphiostoma quercusassociated withAcacia mearnsiitrees in Australia and Uganda, respectively

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