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  • beta-tubulin  (3)
  • Byssochlamys  (2)
  • 1
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    Polyphasic taxonomy of the heat resistant ascomycete genus Byssochlamys and its Paecilomyces anamorphs (2009)
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi (0031-05850) vol.22 (2009) nr.1 p.14
    Details
    Publication Date: 2015-04-20
    Description: Byssochlamys and related Paecilomyces strains are often heat resistant and may produce mycotoxins in contaminated pasteurised foodstuffs. A comparative study of all Byssochlamys species was carried out using a polyphasic approach to find characters that differentiate species and to establish accurate data on potential mycotoxin production by each species. Phylogenetic analysis of the ITS region, parts of the â-tubulin and calmodulin genes, macro- and micromorphological examinations and analysis of extrolite profiles were applied. Phylogenetic analyses revealed that the genus Byssochlamys includes nine species, five of which form a teleomorph, i.e. B. fulva, B. lagunculariae, B. nivea, B. spectabilis and B. zollerniae, while four are asexual, namely P. brunneolus, P. divaricatus, P. formosus and P. saturatus. Among these, B. nivea produces the mycotoxins patulin and byssochlamic acid and the immunosuppressant mycophenolic acid. Byssochlamys lagunculariae produces byssochlamic acid and mycophenolic acid and thus chemically resembles B. nivea. Some strains of P. saturatus produce patulin and brefeldin A, while B. spectabilis (anamorph P. variotii s.s.) produces viriditoxin. Some micro- and macromorphological characters are valuable for identification purposes, including the shape and size of conidia and ascospores, presence and ornamentation of chlamydospores, growth rates on MEA and CYA and acid production on CREA. A dichotomous key is provided for species identification based on phenotypical characters.
    Keywords: Byssochlamys ; emodin ; Eurotiales ; extrolites ; heat resistance ; mycophenolic acid ; Paecilomyces ; patulin
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
    Format: application/pdf
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  • 2
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    A taxonomic review of Penicillium species producing conidiophores with solitary phialides, classified in section Torulomyces (2016)
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi (1878-9080) vol.36 (2016) p.134
    Details
    Publication Date: 2016-06-07
    Description: 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. riverlandense, P. tubakianum, P. variratense, P. williamettense, P. wisconsinense and P. wollemiicola. In addition, we reclassify P. laeve and P. ovatum in sect. Exilicaulis and correct the typification of P. lagena. We provide descriptions and notes on the identification of the species.
    Keywords: 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
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
    Format: application/pdf
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  • 3
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    Unknown
    Polyphasic taxonomy of the heat resistant ascomycete genus Byssochlamys and its Paecilomyces anamorphs (2009)
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 22 no. 1, pp. 14-27
    Details
    Publication Date: 2024-01-12
    Description: Byssochlamys and related Paecilomyces strains are often heat resistant and may produce mycotoxins in contaminated pasteurised foodstuffs. A comparative study of all Byssochlamys species was carried out using a polyphasic approach to find characters that differentiate species and to establish accurate data on potential mycotoxin production by each species. Phylogenetic analysis of the ITS region, parts of the \xc3\xa2-tubulin and calmodulin genes, macro- and micromorphological examinations and analysis of extrolite profiles were applied. Phylogenetic analyses revealed that the genus Byssochlamys includes nine species, five of which form a teleomorph, i.e. B. fulva, B. lagunculariae, B. nivea, B. spectabilis and B. zollerniae, while four are asexual, namely P. brunneolus, P. divaricatus, P. formosus and P. saturatus. Among these, B. nivea produces the mycotoxins patulin and byssochlamic acid and the immunosuppressant mycophenolic acid. Byssochlamys lagunculariae produces byssochlamic acid and mycophenolic acid and thus chemically resembles B. nivea. Some strains of P. saturatus produce patulin and brefeldin A, while B. spectabilis (anamorph P. variotii s.s.) produces viriditoxin. Some micro- and macromorphological characters are valuable for identification purposes, including the shape and size of conidia and ascospores, presence and ornamentation of chlamydospores, growth rates on MEA and CYA and acid production on CREA. A dichotomous key is provided for species identification based on phenotypical characters.
    Keywords: Byssochlamys ; emodin ; Eurotiales ; extrolites ; heat resistance ; mycophenolic acid ; Paecilomyces ; patulin
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Location Call Number Limitation Availability
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    PAPER (OA)
  • 4
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    Unknown
    A taxonomic review of Penicillium species producing conidiophores with solitary phialides, classified in section Torulomyces (2016)
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 36, pp. 134-155
    Details
    Publication Date: 2024-01-12
    Description: 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. riverlandense, P. tubakianum, P. variratense, P. williamettense, P. wisconsinense and P. wollemiicola. In addition, we reclassify P. laeve and P. ovatum in sect. Exilicaulis and correct the typification of P. lagena. We provide descriptions and notes on the identification of the species.
    Keywords: 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
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Location Call Number Limitation Availability
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    PAPER (OA)
  • 5
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    Unknown
    Five new Penicillium species in section Sclerotiora: a tribute to the Dutch Royal family (2013)
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 31 no. 1, pp. 42-62
    Details
    Publication Date: 2024-01-12
    Description: 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, \xe2\x80\x98Zijne Koninklijke Hoogheid de Prins van Oranje\xe2\x80\x99 (translated from Dutch as: \xe2\x80\x98His Royal Highness the Prince of Orange\xe2\x80\x99) and his family, to coincide with his coronation.\nWe review the current taxonomic positions of P. lilacinoechinulatum and P. nodositatum, both currently considered to be synonyms of P. bilaiae. Sequence data generated in this study show that both species are phylogenetically distinct. Penicillium lilacinoechinulatum is closely related to P. amaliae sp. nov., whereas P. nodositatum does not belong to Penicillium sensu stricto. All species were compared morphologically and phylogenetically, based on \xce\xb2-tubulin and calmodulin DNA data. A table summarising the morphological characters of all species is included, together with photomicrographs and recommended DNA markers for identification.
    Keywords: Arthropod vectoring ; beta-tubulin ; internal transcribed spacer region (ITS)
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Location Call Number Limitation Availability
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    PAPER (OA)
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