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Registros recuperados: 7
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A co-evolutionary relationship exists between Endoraecium (Pucciniales) and its Acacia hosts in Australia Naturalis
McTaggart, A.R.; Doungsa-ard, C.; Geering, A.D.W.; Aime, M.C.; Shivas, R.G..
Endoraecium is a genus of rust fungi that infects several species of Acacia in Australia, South-East Asia and Hawaii. This study investigated the systematics of Endoraecium from 55 specimens in Australia based on a combined morphological and molecular approach. Phylogenetic analyses were conducted on partitioned datasets of loci from ribosomal and mitochondrial DNA. The recovered molecular phylogeny supported a recently published taxonomy based on morphology and host range that divided Endoraecium digitatum into five species. Spore morphology is synapomorphic and there is evidence Endoraecium co-evolved with its Acacia hosts. The broad host ranges of E. digitatum, E. parvum, E. phyllodiorum and E. violae-faustiae are revised in light of this study, and nine...
Tipo: Article / Letter to the editor Palavras-chave: Atelocauda; Endocyclic rusts; Mimosoideae; Racospermyces; Raveneliaceae; Uredinales.
Ano: 2015 URL: http://www.repository.naturalis.nl/record/588680
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A review of the Ustilago-Sporisorium-Macalpinomyces complex Naturalis
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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Diversity of gall-forming rusts (Uromycladium, Pucciniales) on Acacia in Australia Naturalis
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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Fungal Planet description sheets: 107–127 Naturalis
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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Fungal Planet description sheets: 69–91 Naturalis
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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Soral synapomorphies are significant for the systematics of the Ustilago-Sporisorium- Macalpinomyces complex (Ustilaginaceae) Naturalis
McTaggart, A.R.; Shivas, R.G.; Geering, A.D.W.; Callaghan, B.; Vánky, K.; Scharaschkin, T..
The genera Ustilago, Sporisorium and Macalpinomyces are a polyphyletic complex of plant pathogenic fungi. The four main morphological characters used to define these genera have been considered homoplasious and not useful for resolving the complex. This study re-evaluates character homology and discusses the use of these characters for defining monophyletic groups recovered from a reconstructed phylogeny using four nuclear loci. Generic delimitation of smut fungi based on their hosts is also discussed as a means for identifying genera within this group. Morphological characters and host specificity can be used to circumscribe genera within the Ustilago-Sporisorium-Macalpinomyces complex.
Tipo: Article / Letter to the editor Palavras-chave: Columella; Maximum likelihood; Morphology; Peridium; Smut fungi; Spore balls; Sterile cells; Systematics; Ustilaginales.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/531878
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Taxonomic revision of Ustilago, Sporisorium and Macalpinomyces Naturalis
McTaggart, A.R.; Shivas, R.G.; Geering, A.D.W.; Vánky, K.; Scharaschkin, T..
Morphological characters within the Ustilago-Sporisorium-Macalpinomyces complex are defined explicitly. The genera Sporisorium and Anthracocystis are emended to reflect morphological synapomorphies. Three new genera, Langdonia, Stollia and Triodiomyces are described based on soral synapomorphies and host classification. The new classification of the Ustilago-Sporisorium-Macalpinomyces complex incorporates 142 new taxonomic combinations.
Tipo: Article / Letter to the editor Palavras-chave: Smut fungi; Systematics; Taxonomy; Ustilaginaceae; Ustilaginomycotina.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/532068
Registros recuperados: 7
Primeira ... 1 ... Última
 

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