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1.

001-es BibID:BIBFORM081440
Első szerző:Nasr, Shaghayegh
Cím:Wickerhamomyces orientalis f.a., sp. nov.: an ascomycetous yeast species belonging to the Wickerhamomyces clade / Shaghayegh Nasr, Hai D. T. Nguyen, Mohammad Reza Soudi, Seyed Abolhassan Shahzadeh Fazeli, Matthias Sipiczki
Dátum:2016
ISSN:1466-5026 1466-5034
Megjegyzések:Five closely related yeast strains were isolated from soil in Kharg Island, Persian Gulf, Iran, and from fallen fruits in Galle, Sri Lanka, during separate projects. Morphologically, the strains produced white-coloured yeast colonies, with cells that were ovoid to ellipsoidal, making branched, true hyphae and pseudohyphae. Ascospore formation was not observed. Biochemically, the strains were able to ferment d-glucose and weakly ferment d-galactose. The strains could use a wide variety of carbon sources except methanol and hexadecane. Phylogenetic analyses using combined sequences of the small ribosomal subunit and the D1/D2 domains of the LSU, as well as the internal transcribed spacer regions, suggested that these strains belong to the Wickerhamomyces clade and that together they form one strongly supported phylogenetic clade. Differences in their sequences, biochemistry and morphology suggest they are representatives of distinct species of the genus Wickerhamomyces. Therefore, the name Wickerhamomyces orientalis f.a., sp. nov. is proposed to accommodate these novel strains; the type strain is IBRC-M 30103T (=CBS 13306T). The MycoBank number is MB 807323
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:International Journal Of Systematic And Evolutionary Microbiology. - 66 : 7 (2016), p. 2534-2539. -
További szerzők:Nguyen, Hai D. T. Soudi, Mohammad Reza Shahzadeh Fazeli, Seyed Abolhassan Sipiczki Mátyás (1948-) (biológus)
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2.

001-es BibID:BIBFORM103417
035-os BibID:(Wos)000522888400055 (Scopus)85081075931 (Pubmed)31751201
Első szerző:Sipiczki Mátyás (biológus)
Cím:Mycosarcoma aegyptiacum sp. nov., an antagonistic polymorphic basidiomycetous yeast related to smut fungi / Matthias Sipiczki
Dátum:2020
ISSN:1466-5026 1466-5034
Megjegyzések:Six polymorphic yeast strains with strong antifungal activities isolated from dicot plants in an alkaline-lake desert region were subjected to taxonomic examination. The phylogenetic trees reconstructed by using neighbour-joining, maximum-likelihood and Bayesian methods from concatenated D1/D2 and ITS-5.8S-ITS2 sequences revealed phylogenetic affinity to Ustilaginaceae, but the large phylogenetic distance separating the isolates from the most closely related groups of species indicates that they represent a separate species. The sequences of the genes coding for the LSU rDNA, act1, rpb2 and a protein of unknown function corroborate this position. The isolates can easily be distinguished from their closest relatives by physiological tests (utilisation of carbon and nitrogen sources). Based on these results, a new species, Mycosarcoma aegyptiacum sp. nov., is proposed to accommodate the isolates. All isolates are polymorphic. Transitions between budding-yeast and pseudohyphal morphologies which take place during colony formation result in morphologically different colony sectors and invasive growth into the medium. Neither sexual mating nor sporulation was observed in cultures growing on laboratory media.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
polymorphic yeast
Mycosarcoma
Ustilaginales
phylloplane yeast
Megjelenés:International Journal Of Systematic And Evolutionary Microbiology. - 70 : 2 (2020), p. 1086-1092. -
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3.

001-es BibID:BIBFORM081443
Első szerző:Sipiczki Mátyás (biológus)
Cím:Candida vulturna pro tempore sp. nov., a dimorphic yeast species related to the Candida haemulonis species complex isolated from flowers and clinical sample / Matthias Sipiczki, Ratna Mohd Tap
Dátum:2016
ISSN:1466-5026 1466-5034
Megjegyzések:In a taxonomic study of yeasts isolated from flowers in Cagayan de Oro, Mindenao Island, The Philippines, strains were identified as representing Kabatiella microsticta, Metschnikowia koreensis and a hitherto undescribed dimorphic species. Sequences of the D1/D2 domains of the LSU 26S rRNA genes, the internal transcribed spacer (ITS) regions and the SSU 18S rRNA genes were identical in the strains of the last-named group and differed from the corresponding sequences of the type strain of the closest related species, Candida duobushaemulonii, by 4 % (D1/D2), 7 % (ITS) and 1 % (SSU). In an independent study, a strain with D1/D2 and ITS sequences very similar to those of the Philippine strains was isolated in Malaysia from the blood of a patient dying of aspiration pneumonia. Both groups of isolates were moderately sensitive to anidulafungin, caspofungin, fluconazole, itraconazole and voriconazole but resistant to amphotericin B. Molecular phylogenetic analysis of the sequences placed the Philippine and Malaysian isolates close to the Candida haemulonis complex of Candida species. To reflect the geographical location of the sites of sample collection, the novel species name Candida vulturna pro tempore sp. nov. is proposed to accommodate these strains. The type strain is 11-1170T (=CBS 14366T=CCY 094-001-001T=NCAIM-Y02177T) isolated in Cagayan de Oro, The Philippines. Mycobank: MB 817222.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:International Journal Of Systematic And Evolutionary Microbiology. - 66 : 10 (2016), p. 4009-4015. -
További szerzők:Tap, Ratna Mohd
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4.

001-es BibID:BIBFORM046103
Első szerző:Sipiczki Mátyás (biológus)
Cím:Candida zemplinina sp. nov., an osmotolerant and psychrotolerant yeast that ferments sweet botrytized wines / Sipiczki M.
Dátum:2003
ISSN:1466-5026 1466-5034
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:International Journal of Systematic and Evolutionary Microbiology 53 : 1 (2003), p. 2079-2083. -
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5.

001-es BibID:BIBFORM064289
Első szerző:Sipiczki Mátyás (biológus)
Cím:Metahyphopichia laotica gen. nov., sp. nov., a polymorphic yeast related to Hyphopichia / Matthias Sipiczki, Walter P. Pfliegler, Silvana V. B. Safar, Paula B. Morais, Carlos A. Rosa
Dátum:2016
ISSN:1466-5026 1466-5034
Megjegyzések:Four strains alternating between yeast and filamentous growth morphologies were isolated from flowers in two regions of Laos. In liquid environment the isolates propagated by budding and developed irregularly shaped pseudohyphae. On solid media their yeast cells switched to hyphal growth which could return to the yeast phase by developing lateral blastoconidia. The sequences of the D1/D2 domains of the large subunit (LSU) 26S rRNA genes, the internal transcribed spacer (ITS) regions and the small subunit (SSU) 18S rRNA genes were identical in the four strains and differed from the corresponding sequences of other yeast species available in databases by at least 11% (D1/D2), 13% (ITS) and 7% (SSU). In an independent project, two strains with D1/D2 and ITS sequences very similar to those of the Laotian strains were found in bark samples collected in Brazil. The six strains also differed from the closest yeast species in physiological properties, indicating that they represented a hitherto undescribed species. The phylogenetic analysis of the D1/D2 sequences, and the concatenated sequences of the SSU rRNA genes, D1/D2 domains of LSU rRNA genes as well as the protein-encoding genes ACT1 and TEF1 placed them close to Hyphopichia. To reflect this position, the novel genus name Metahyphopichia and the novel species name Metahyphopichia laotica are proposed for them. The type strain is 11-1006T (=CBS 13022T = CCY 092-001-001T = NCAIM Y.02126T) isolated in Luang Prabang (Laos). Mycobank registration numbers are MB 808253 (Metahyphopichia) and MB 808254 (M. laotica).
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:International Journal Of Systematic And Evolutionary Microbiology. - 66 (2016), p. 2550-2557. -
További szerzők:Pfliegler Valter Péter (1986-) (molekuláris biológus) Rosa, Carlos A. Safar, Silvana V. B. Morais, Paula B
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6.

001-es BibID:BIBFORM043962
Első szerző:Sipiczki Mátyás (biológus)
Cím:Pichia bruneiensis sp. nov., a biofilm-producing dimorphic yeast species isolated from flowers in Borneo / Sipiczki Mátyás
Dátum:2012
ISSN:1466-5026 1466-5034
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:International Journal of Systematic and Evolutionary Microbiology. - 62 (2012), p. 2303-2306. -
Internet cím:DOI
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7.

001-es BibID:BIBFORM007751
Első szerző:Sipiczki Mátyás (biológus)
Cím:Jaminaea angkorensis gen. nov., sp. nov., a novel anamorphic fungus containing an S943 nuclear small subunit rRNA group IB intron represents a basal branch of Microstromatales / Sipiczki M., Kajdacsi E.
Dátum:2009
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:International Journal of Systematic and Evolutionary Microbiology. - 59 (2009), p. 914-920. -
További szerzők:Kajdácsi Erika (1982-) (biológus)
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