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| McTaggart, A.R.; Shivas, R.G.; Geering, A.D.W.; Vánky, K.; Scharaschkin, T.. |
| The fungal genera Ustilago, Sporisorium and Macalpinomyces represent an unresolved complex. Taxa within the complex often possess characters that occur in more than one genus, creating uncertainty for species placement. Previous studies have indicated that the genera cannot be separated based on morphology alone. Here we chronologically review the history of the Ustilago-Sporisorium-Macalpinomyces complex, argue for its resolution and suggest methods to accomplish a stable taxonomy. A combined molecular and morphological approach is required to identify synapomorphic characters that underpin a new classification. Ustilago, Sporisorium and Macalpinomyces require explicit re-description and new genera, based on monophyletic groups, are needed to accommodate... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Smut fungi; Systematics; Ustilaginaceae. |
| Ano: 2012 |
URL: http://www.repository.naturalis.nl/record/532423 |
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| Doungsa-ard, C.; McTaggart, A.R.; Geering, A.D.W.; Shivas, R.G.. |
| Uromycladium tepperianum has been reported on over 100 species of Acacia, as well as on the closely related plant genera, Falcataria, Racosperma and Paraserianthes. Previous studies have indicated that U. tepperianum may represent a complex of host-specific, cryptic species. The phylogenetic relationships between 79 specimens of Uromycladium were determined based on a concatenated dataset of the Small Subunit, the Internal Transcribed Spacer and the Large Subunit regions of nuclear ribosomal DNA, and the mitochondrial cytochrome c oxidase subunit 3. This study showed that the host range of U. tepperianum s.str. was restricted to species of Acacia in the ‘A. bivenosa group’ sensu Chapman & Maslin (1992). An epitype of U. tepperianum on A. ligulata is... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Cryptic species; Pucciniales; Systematics; Taxonomy; 16 new taxa. |
| Ano: 2018 |
URL: http://www.repository.naturalis.nl/record/650131 |
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| Crous, P.W.; Summerell, B.A.; Shivas, R.G.; Burgess, T.I.; Decock, C.A.; Dreyer, L.L.; Granke, L.L.; Guest, D.I.; Hardy, G.E.St.J.; Hausbeck, M.K.; Hüberli, D.; Jung, T.; Koukol, O.; Lennox, C.L.; Liew, E.C.Y.; Lombard, L.; McTaggart, A.R.; Pryke, J.S.; Roets, F.; Saude, C.; Shuttleworth, L.A.; Stukely, M.J.C.; Vánky, K.; Webster, B.J.; Windstam, S.T.; Groenewald, J.Z.. |
| Novel species of microfungi described in the present study include the following from Australia: Phytophthora amnicola from still water, Gnomoniopsis smithogilvyi from Castanea sp., Pseudoplagiostoma corymbiae from Corymbia sp., Diaporthe eucalyptorum from Eucalyptus sp., Sporisorium andrewmitchellii from Enneapogon aff. lindleyanus, Myrmecridium banksiae from Banksia, and Pilidiella wangiensis from Eucalyptus sp. Several species are also described from South Africa, namely: Gondwanamyces wingfieldii from Protea caffra, Montagnula aloes from Aloe sp., Diaporthe canthii from Canthium inerne, Phyllosticta ericarum from Erica gracilis, Coleophoma proteae from Protea caffra, Toxicocladosporium strelitziae from Strelitzia reginae, and Devriesia agapanthi from... |
| Tipo: Article / Letter to the editor |
Palavras-chave: ITS DNA barcodes; LSU; Novel fungal species; Systematics. |
| Ano: 2012 |
URL: http://www.repository.naturalis.nl/record/532141 |
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| Crous, P.W.; Groenewald, J.Z.; Shivas, R.G.; Edwards, J.; Seifert, K.A.; Alfenas, A.C.; Alfenas, R.F.; Burgess, T.I.; Carnegie, A.J.; Hardy, G.E.St.J.; Hiscock, N.; Hüberli, D.; Jung, T.; Louis-Seize, G.; Okada, G.; Pereira, O.L.; Stukely, M.J.C.; Wang, W.; White, G.P.; Young, A.J.; McTaggart, A.R.; Pascoe, I.G.; Porter, I.J.; Quaedvlieg, W.. |
| Novel species of microfungi described in the present study include the following from Australia: Bagadiella victoriae and Bagadiella koalae on Eucalyptus spp., Catenulostroma eucalyptorum on Eucalyptus laevopinea, Cercospora eremochloae on Eremochloa bimaculata, Devriesia queenslandica on Scaevola taccada, Diaporthe musigena on Musa sp., Diaporthe acaciigena on Acacia retinodes, Leptoxyphium kurandae on Eucalyptus sp., Neofusicoccum grevilleae on Grevillea aurea, Phytophthora fluvialis from water in native bushland, Pseudocercospora cyathicola on Cyathea australis, and Teratosphaeria mareebensis on Eucalyptus sp. Other species include Passalora leptophlebiae on Eucalyptus leptophlebia (Brazil), Exophiala tremulae on Populus tremuloides and Dictyosporium... |
| Tipo: Article / Letter to the editor |
Palavras-chave: ITS DNA barcodes; LSU; Novel fungal species; Systematics. |
| Ano: 2011 |
URL: http://www.repository.naturalis.nl/record/532357 |
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