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| Crous, P.W.; Summerell, B.A.; Swart, L.; Denman, S.; Taylor, J.E.; Bezuidenhout, C.M.; Palm, M.E.; Marincowitz, S.; Groenewald, J.Z.. |
| Species of Leucadendron, Leucospermum and Protea (Proteaceae) are in high demand for the international floriculture market due to their brightly coloured and textured flowers or bracts. Fungal pathogens, however, create a serious problem in cultivating flawless blooms. The aim of the present study was to characterise several of these pathogens using morphology, culture characteristics, and DNA sequence data of the rRNA-ITS and LSU genes. In some cases additional genes such as TEF 1-α and CHS were also sequenced. Based on the results of this study, several novel species and genera are described. Brunneosphaerella leaf blight is shown to be caused by three species, namely B. jonkershoekensis on Protea repens, B. nitidae sp. nov. on Protea nitida and B.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Biodiversity; Cut-flower industry; Fungal pathogens; ITS; LSU; Phylogeny; Systematics. |
| Ano: 2012 |
URL: http://www.repository.naturalis.nl/record/532487 |
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| Minnis, A.M.; Kennedy, A.H.; Grenier, D.B.; Palm, M.E.; Rossman, A.Y.. |
| The core species of the family Planistromellaceae are included in the teleomorphic genera Planistroma and Planistromella and the connected anamorphic, coelomycetous genera Alpakesa, Kellermania, and Piptarthron. These genera have been defined primarily on the basis of ascospore septation or number of conidial appendages. Due to a lack of DNA sequence data, phylogenetic placement of these genera within the Dothideomycetes, evaluation of monophyly, and questions about generic boundaries could not be adequately addressed in the past. Isolates of nearly all of the known species in these genera were studied genetically and morphologically. DNA sequence data were generated for the nSSU, ITS, nLSU, and RPB1 markers and analysed phylogenetically. These results... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Agavaceae; Ascomycota; Asparagaceae; Botryosphaeriaceae; Botryosphaeriales; Coelomycetes; Dothideomycetes; Molecular phylogeny; Planistromellaceae; Septoplaca; Taxonomy. |
| Ano: 2012 |
URL: http://www.repository.naturalis.nl/record/532255 |
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