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Registros recuperados: 3
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Morphological plasticity in Cladosporium sphaerospermum Naturalis
Dugan, F.M.; Braun, U.; Groenewald, J.Z.; Crous, P.W..
A morphologically distinct isolate of Cladosporium sphaerospermum from a North American patent collection, referenced as Cladosporium lignicola in the patent, was examined. Generic affinity was confirmed by scanning electron microscopic examination of conidiogenous loci and conidial hila. Species identity as C. sphaerospermum was indicated by DNA sequence data derived from actin and translation elongation factor 1-α genes, and the internal transcribed spacer region. The isolate broadens the morphological limits of C. sphaerospermum by production of obclavate, occasionally transversely septate conidia with subrostrate conidiogenous apices (‘alternarioid’ conidia), and by production of conidia larger than those in prior standard descriptions. Type material...
Tipo: Article / Letter to the editor Palavras-chave: Actin; Cladosporium Davidiella; EF1-α; ITS; Morphology; Wood-inhabiting.
Ano: 2008 URL: http://www.repository.naturalis.nl/record/531979
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Resolving the Diaporthe species occurring on soybean in Croatia Naturalis
Santos, J.M.; Vrandečić, K.; Ćosić, J.; Duvnjak, T.; Phillips , A.J.L..
Diaporthe (anamorph = Phomopsis) species are plant pathogens and endophytes on a wide range of hosts including economically important crops. At least four Diaporthe taxa occur on soybean and they are responsible for serious diseases and significant yield losses. Although several studies have extensively described the culture and morphological characters of these pathogens, their taxonomy has not been fully resolved. Diaporthe and Phomopsis isolates were obtained from soybean and other plant hosts throughout Croatia. Phylogenetic relationships were determined through analyses of partial translation elongation factor 1-alpha (EF1-α) gene and ITS nrDNA sequence data. By combining morphological and molecular data, four species could be distinguished on...
Tipo: Article / Letter to the editor Palavras-chave: Anamorph; EF1-α; ITS; Mating-types; Phylogeny; Systematics; Taxonomy; Teleomorph.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/531776
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Resolving the phylogenetic and taxonomic status of dark-spored teleomorph genera in the Botryosphaeriaceae Naturalis
Phillips, A.J.L.; Alves, A.; Pennycook, S.R.; Johnston, P.R.; Ramaley, A.; Akulov, A.; Crous:, P.W..
Species in the Botryosphaeriaceae are common plant pathogens and saprobes found on a variety of mainly woody hosts. Teleomorphs typically have hyaline, aseptate ascospores. However, some have been reported with brown ascospores and their taxonomic status is uncertain. A multi-gene approach (SSU, ITS, LSU, EF1-α and β-tubulin) was used to resolve the correct phylogenetic position of the dark-spored ‘Botryosphaeria’ teleomorphs and related asexual species. Neodeightonia and Phaeobotryon are reinstated for species with brown ascospores that are either 1-septate (Neodeightonia) or 2-septate (Phaeobotryon). Phaeobotryosphaeria is reinstated for species with brown, aseptate ascospores that bear an apiculus at either end. The status of Sphaeropsis is clarified...
Tipo: Article / Letter to the editor Palavras-chave: Barriopsis; Diplodia; Dothiorella; EF1-α; ITS; Lasiodiplodia; LSU; Neodeightonia; Phaeobotryon; Phaeobotryosphaeria; Phylogeny; Spencermartinsia; Sphaeropsis; SSU.
Ano: 2008 URL: http://www.repository.naturalis.nl/record/532050
Registros recuperados: 3
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