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A fissitunicate ascus mechanism in the Calosphaeriaceae, and novel species of Jattaea and Calosphaeria on Prunus wood Naturalis
Damm, U.; Crous, P.W.; Fourie, P.H..
During a survey of Prunus wood from South Africa, isolations were made of three presumably Calosphaerialean fungi that formed hyphomycetous, phialidic anamorphs in culture. In order to reveal the phylogenetic relationship of these fungi, they were characterised on a morphological and molecular (LSU and ITS rDNA) basis. Two isolates that formed a teleomorph in culture are newly described as Calosphaeria africana sp. nov. Although asci of Calosphaeria are characterised by having non-amyloid apical rings, two functional wall layers were observed in asci of C. africana, which has hitherto not been observed in any member of the Calosphaeriaceae. However, Calosphaeriaceae (Calosphaeriales, Sordariomycetes) are not closely related to other bitunicate fungi like...
Tipo: Article / Letter to the editor Palavras-chave: Apical ring; Ascospore discharge; Ascus dehiscence; Beta-tubulin; Calosphaeria; Calosphaeriaceae; ITS; Jattaea; LSU; Phialophora; Prunus; SSU; Systematics.
Ano: 2008 URL: http://www.repository.naturalis.nl/record/531626
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Biodiversity and human-pathogenicity of Phialophora verrucosa and relatives in Chaetothyriales Naturalis
Li, Y.; Xiao, J.; Hoog, , G.S. de; Wang, X.; Wan, Z.; Yu, J.; Liu, W.; Li, R..
Phialophora as defined by its type species P. verrucosa is a genus of Chaetothyriales, and a member of the group known as ‘black yeasts and relatives’. Phialophora verrucosa has been reported from mutilating human infections such as chromoblastomycosis, disseminated phaeohyphomycosis and mycetoma, while morphologically similar fungi are rather commonly isolated from the environment. Phenotypes are insufficient for correct species identification, and molecular data have revealed significant genetic variation within the complex of species currently identified as P. verrucosa or P. americana. Multilocus analysis of 118 strains revealed the existence of five reproductively isolated species apparently having different infectious potentials. Strains of the...
Tipo: Article / Letter to the editor Palavras-chave: Chaetothyriales; Chromoblastomycosis; Phaeohyphomycosis; Phialophora; Phylogeny; Taxonomy.
Ano: 2017 URL: http://www.repository.naturalis.nl/record/614056
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