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Registros recuperados: 6
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How important are conidial appendages? Naturalis
Crous, P.W.; Verkley, G.J.M.; Christensen, M.; Castañeda-Ruiz, R.F.; Groenewald, J.Z..
The genus Dinemasporium is used as a case study to evaluate the importance of conidial appendages for generic level classification of coelomycetous fungi. Based on morphology and sequence data of the large subunit nuclear ribosomal RNA gene (LSU, 28S) and the internal transcribed spacers and 5.8S rRNA gene of the nr DNA operon, the genus Dinemasporium is circumscribed, and an epitype designated for D. strigosum, the type of the genus. A further five species are introduced in Dinemasporium, namely D. pseudostrigosum (isolated from Triticum aestivum, Germany and Stigmaphyllon sagraeanum, Cuba), D. americana (soil, USA), D. polygonum (Polygonum sachalinense, Netherlands), D. pseudoindicum (soil, USA), and D. morbidum (human sputum, Netherlands and hare dung,...
Tipo: Article / Letter to the editor Palavras-chave: Chaetosphaeriaceae; Dinemasporium; ITS; LSU; Sordariomycetes; Systematics.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/531966
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Two new classes of Ascomycota: Xylobotryomycetes and Candelariomycetes Naturalis
Voglmayr, H.; Fournier, J.; Jaklitsch, W.M..
Phylogenetic analyses of a combined DNA data matrix containing nuclear small and large subunits (nSSU, nLSU) and mitochondrial small subunit (mtSSU) ribosomal RNA and the largest and second largest subunits of the RNA polymerase II (rpb1, rpb2) of representative Pezizomycotina revealed that the enigmatic genera Xylobotryum and Cirrosporium form an isolated, highly supported phylogenetic lineage within Leotiomyceta. Acknowledging their morphological and phylogenetic distinctness, we describe the new class Xylobotryomycetes, containing the new order Xylobotryales with the two new families Xylobotryaceae and Cirrosporiaceae. The two currently accepted species of Xylobotryum, X. andinum and X. portentosum, are described and illustrated by light and scanning...
Tipo: Article / Letter to the editor Palavras-chave: Ascomycota; Dothideomycetes; Eurotiomycetes; Five new taxa; Multigene phylogenetic analyses; Pyrenomycetes; Sordariomycetes.
Ano: 2019 URL: http://www.repository.naturalis.nl/record/659252
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Resolution of morphology-based taxonomic delusions: Acrocordiella, Basiseptospora, Blogiascospora, Clypeosphaeria, Hymenopleella, Lepteutypa, Pseudapiospora, Requienella, Seiridium and Strickeria Naturalis
Jaklitsch, W.M.; Gardiennet, A.; Voglmayr, H..
Fresh material, type studies and molecular phylogeny were used to clarify phylogenetic relationships of the nine genera Acrocordiella, Blogiascospora, Clypeosphaeria, Hymenopleella, Lepteutypa, Pseudapiospora, Requienella, Seiridium and Strickeria. At first sight, some of these genera do not seem to have much in common, but all were found to belong to the Xylariales, based on their generic types. Thus, the most peculiar finding is the phylogenetic affinity of the genera Acrocordiella, Requienella and Strickeria, which had been classified in the Dothideomycetes or Eurotiomycetes, to the Xylariales. Acrocordiella and Requienella are closely related but distinct genera of the Requienellaceae. Although their ascospores are similar to those of Lepteutypa,...
Tipo: Article / Letter to the editor Palavras-chave: Ascomycota; Dothideomycetes; New genus; Phylogenetic analysis; Pyrenomycetes; Pyrenulales; Sordariomycetes; Xylariales.
Ano: 2016 URL: http://www.repository.naturalis.nl/record/611854
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Finding the missing link: resolving the Coryneliomycetidae within Eurotiomycetes Naturalis
Wood, A.R.; Damm, U.; Linde, E.J. van der; Groenewald, J.Z.; Cheewangkoon, R.; Crou, P.W..
Species belonging to the Coryneliaceae and parasitizing Podocarpaceae hosts were collected from different locations in South Africa and studied morphologically by light microscopy and molecularly by obtaining partial nrDNA (ITS-1/5.8S/ITS-2, 18S and 28S) gene sequences. The position of the Coryneliaceae within the Eurotiomycetidae was not confirmed and a new subclass, Coryneliomycetidae, was introduced. While Eurotiomycetidae usually form cleistothecia/gymnothecia with evanescent, unitunicate asci, and Chaetothyriomycetidae mostly perithecia with bitunicate/fissitunicate to evanescent asci, Coryneliomycetidae form pseudothecial mazaedial ascomata, initially with double-walled asci with the outer layer deliquescing, resulting in passive ascospore release....
Tipo: Article / Letter to the editor Palavras-chave: Corynelia; DNA phylogeny; Lagenulopsis; Phytopathogenic fungi; Sordariomycetes; Systematics; Tripospora.
Ano: 2016 URL: http://www.repository.naturalis.nl/record/611852
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Taxonomic and phylogenetic re-evaluation of Microdochium, Monographella and Idriella Naturalis
Hernández-Restrepo, M.; Groenewald , J.Z.; Crous, P.W..
Based on morphology and DNA sequence data the taxonomic relationships of Microdochium, Monographella and Idriella were reassessed. Microdochium is morphologically and phylogenetically circumscribed, and the sexual genus Monographella treated as synonym on the basis that Microdochium has more species, is more commonly encountered, and more frequently used in literature. An epitype is designated for Microdochium phragmites, and several well-known species are redefined based on their morphology and DNA sequence data (LSU, ITS, BTUB and RPB2). Furthermore, the revision of Microdochium led to six new combinations (M. albescens, M. consociatum, M. fusariisporum, M. maydis, M. opuntiae and M. stevensonii) and six new species (M. citrinidiscum, M. colombiense, M....
Tipo: Article / Letter to the editor Palavras-chave: Cereals; Grasses; Phytopathogenic fungi; Sordariomycetes; Xylariales.
Ano: 2016 URL: http://www.repository.naturalis.nl/record/607373
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Families and genera of diaporthalean fungi associated with canker and dieback of tree hosts Naturalis
Fan, X.L.; Bezerra, J.D.P.; Tian, C.M.; Crous, P.W..
In this study we accept 25 families in Diaporthales based on phylogenetic analyses using partial ITS, LSU, rpb2 and tef1-α gene sequences. Four different families associated with canker and dieback of tree hosts are morphologically treated and phylogenetically compared. These include three new families (Diaporthostomataceae, Pseudomelanconidaceae, Synnemasporellaceae), and one new genus, Dendrostoma (Erythrogloeaceae). Dendrostoma is newly described from Malus spectabilis, Osmanthus fragrans and Quercus acutissima having fusoid to cylindrical, bicellular ascospores, with three new species namely D. mali, D. osmanthi and D. quercinum. Diaporthostomataceae is characterised by conical and discrete perithecia with bicellular, fusoid ascospores on branches of...
Tipo: Article / Letter to the editor Palavras-chave: Ascomycota; Phylogeny; Sordariomycetes; Taxonomy.
Ano: 2018 URL: http://www.repository.naturalis.nl/record/643333
Registros recuperados: 6
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