Consulta: subjectFacets:"Beta-tubulin"
Registros recuperados: 5
Data/hora: 13/06/2024 07:23:58

Molecular characterization of beta-tubulin from Phakopsora pachyrhizi, the causal agent of Asian soybean rust
Provedor de dados: 74
Autores: Maciel,Talles Eduardo Ferreira; Freire,Maíra Cristina Menezes; Almeida,Álvaro M.R. de; Oliveira,Luiz Orlando de.
β-tubulins are structural components of microtubules and the targets of benzimidazole fungicides used to control many diseases of agricultural importance. Intron polymorphisms in the intron-rich genes of these proteins have been used in phylogeographic investigations of phytopathogenic fungi. In this work, we sequenced 2764 nucleotides of the β-tubulin gene (Pp tubB) in samples of Phakopsora pachyrhizi collected from seven soybean fields in Brazil. Pp tubB contained an open reading frame of 1341 nucleotides, including nine exons and eight introns. Exon length varied from 14 to 880 nucleotides, whereas intron length varied from 76 to 102 nucleotides. The presence of only four polymorphic sites limited the usefulness of Pp tubB for phylogeographic studies in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Asian soybean rust; Beta-tubulin; Genetic diversity; Phakopsora pachyrhizi; Soybeans.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000200025

A fissitunicate ascus mechanism in the Calosphaeriaceae, and novel species of Jattaea and Calosphaeria on Prunus wood
Provedor de dados: 16
Autores: 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

A taxonomic review of Penicillium species producing conidiophores with solitary phialides, classified in section Torulomyces
Provedor de dados: 16
Autores: Visagie, C.M.; Houbraken, J.; Dijksterhuis, J.; Seifert, K.A.; Jacobs, K.; Samson, R.A.
The genus Torulomyces was characterised by species that typically have conidiophores consisting of solitary phialides that produce long chains of conidia connected by disjunctors. Based on the phylogenetic position of P. lagena (generic ex-neotype), the genus and its seven species were transferred to Penicillium and classified in sect. Torulomyces along with P. cryptum and P. lassenii. The aim of this study was to review the species currently classified in sect. Torulomyces using morphology and phylogenies of the ITS, BenA, CaM and RPB2 regions. Based on our results, we accept 16 species in sect. Torulomyces, including 12 new species described as P. aeris, P. austricola, P. cantabricum, P. catalonicum, P. oregonense, P. marthae-christenseniae, P....
Tipo: Article / Letter to the editor
Palavras-chave: Beta-tubulin; Calmodulin; Eupenicillium; Internal transcribed spacer rDNA region; Low temperature Scanning Electron Microscopy (cryo-SEM); Monocillium; RNA polymerase II second largest subunit; Trichocomaceae; Wollemi pine.
Ano: 2016
URL: http://www.repository.naturalis.nl/record/607363

Five new Penicillium species in section Sclerotiora: a tribute to the Dutch Royal family
Provedor de dados: 16
Autores: Visagie, C.M.; Houbraken, J.; Rodriques, C.; Silva Pereira, C.; Dijksterhuis, J.; Seifert, K.A.; Jacobs, K.; Samson, R.A.
Current literature accepts 17 species in Penicillium section Sclerotiora. Several produce colonies in bright yellow to orange colours and have monoverticillate conidiophores, apart from P. herquei, P. malachiteum and P. nodositatum, which are biverticillate. The focus of this paper is to refine the concepts of the species currently accepted in the section and introduce five new species, named after the Dutch Royal family as P. vanoranjei, P. maximae, P. amaliae, P. alexiae and P. arianeae. Penicillium vanoranjei produces orange (Dutch = oranje) colonies in culture, and is named after Willem-Alexander Claus George Ferdinand, ‘Zijne Koninklijke Hoogheid de Prins van Oranje’ (translated from Dutch as: ‘His Royal Highness the Prince of Orange’) and his family,...
Tipo: Article / Letter to the editor
Palavras-chave: Arthropod vectoring; Beta-tubulin; Internal transcribed spacer region (ITS).
Ano: 2013
URL: http://www.repository.naturalis.nl/record/531975

Fifteen new species of Penicillium
Provedor de dados: 16
Autores: Visagie, C.M.; Renaud, J.B.; Burgess, K.M.N.; Malloch, D.W.; Clark, D.; Ketch, L.; Urb, M.; Louis-Seize, G.; Assabgui, R.; Sumarah, M.W.; Seifert, K.A.
We introduce 15 new species of Penicillium isolated from a diverse range of locations, including Canada, Costa Rica, Germany, Italy, New Zealand, Tanzania, USA and the Dry Valleys of Antarctica, from a variety of habitats, including leaf surfaces in tropical rain forests, soil eaten by chimpanzees, infrabuccal pockets of carpenter ants, intestinal contents of caterpillars and soil. The new species are classified in sections Aspergilloides (1), Canescentia (2), Charlesia (1), Exilicaulis (3), Lanata-Divaricata (7) and Stolkia (1). Each is characterised and described using classical morphology, LC-MS based extrolite analyses and multigene phylogenies based on ITS, BenA and CaM. Significant extrolites detected include andrastin, pulvilloric acid, penitrem A...
Tipo: Article / Letter to the editor
Palavras-chave: Beta-tubulin; Calmodulin; Internal transcribed spacer rDNA region; Trichocomaceae.
Ano: 2016
URL: http://www.repository.naturalis.nl/record/607849