Systematics of basidiomycetous yeasts: a comparison of large subunit D1/D2 and internal transcribed spacer rDNA regions

Scorzetti, Gloria; Fell, Jack W.; Fonseca, Álvaro; Statzell-Tallman, Adele

doi:10.1016/s1567-1356(02)00128-9

Cited by 192 publications

(202 citation statements)

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“…The difference between these isolates and the eight Malassezia species exceeded that generally observed between species (Scorzetti et al, 2002). Phylogenetic analysis of 26S rDNA sequences from these isolates showed that they were conspecific and were clearly distinct from the other eight Malassezia species, although they were related closely to M. dermatis and M. sympodialis (Fig.…”

mentioning

confidence: 76%

Malassezia nana sp. nov., a novel lipid-dependent yeast species isolated from animals

Hirai

Kano

Makimura

et al. 2004

International Journal of Systematic and Evolutionary Microbiology

201

130

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Five isolates of a novel species of the yeast genus Malassezia were isolated from animals in Japan and Brazil. Phylogenetic trees based on the D1/D2 domains of the large-subunit (26S) rDNA sequences and nucleotide sequences of the internal transcribed spacer 1 region showed that the isolates were conspecific and belonged to the genus Malassezia. They were related closely to Malassezia dermatis and Malassezia sympodialis, but were clearly distinct from these two species and the other six species of Malassezia that have been reported, indicating that they should be classified as a novel species, Malassezia nana sp. nov. Morphologically and physiologically, M. nana resembles M. dermatis and M. sympodialis, but can be distinguished from these species by its inability to use Cremophor EL (Sigma) as the sole lipid source and to hydrolyse aesculin. The type strain of M. nana is NUSV 1003 T (=CBS 9557 T =JCM 12085 T ).

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mentioning

confidence: 76%

Malassezia nana sp. nov., a novel lipid-dependent yeast species isolated from animals

Hirai

Kano

Makimura

et al. 2004

International Journal of Systematic and Evolutionary Microbiology

201

130

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“…For identification, the BioloMICS programm provided by Dr. V. Robert (Centraalbureau voor Schimmelcultures (CBS), Utrecht, The Netherlands) was used; it is available on internet page: www.cbs.knaw.nl . Identification of some Trichosporon strains and the Cryptococcus strain was confirmed by nuclear base sequencing of the D1D2 and ITS regions of 26S ribosomal DNA (Fell et al 2000;Scorzetti et al 2002).…”

Section: Methodsmentioning

confidence: 99%

The yeast flora of some decaying mushrooms on trunks of living trees

Middelhoven

2004

Folia Microbiol

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ABSTRACT. Several ascomycetous and basidiomycetous yeasts were isolated from rotten mushrooms on the trunks of beech and tamarisk trees. One strain, identified as the novel species Cryptococcus allantoinivorans, assimilated allantoin as the sole carbon source. Phylogenetically it belongs to the C. laurentii complex, Papiliotrema bandonii being the closest relative. Some ascomycetous strains could not be distinguished from Pichia guillermondii, but deviated considerably in rDNA sequences. In addition to these species, both decaying mushrooms were inhabited by more common species, viz. Candida albicans, C. saitoana, Rhodotorula mucilaginosa, Trichosporon asahii, T. multisporum and T. porosum. The basidiomycetous yeasts, except R. mucilaginosa, assimilated some polysaccharides of plant origin.Several yeast species assimilate a great variety of carbon sources in addition to those used for yeast identification and taxonomy (Middelhoven et al. 1985(Middelhoven et al. , 1991(Middelhoven et al. , 2001(Middelhoven et al. , 2004aMiddelhoven and Kurtzman 2003). Uric acid is one of these nonconventional substrates (Middelhoven et al. 1983). Like other aerobic microorganisms, ascomycetous and a basidiomycetous yeast species degrade uric acid by oxidation to allantoin that, in three successive hydrolytic steps, is converted into 1 mol glyoxylate and 2 mol urea (Middelhoven et al. 1983). Surprisingly, most yeast species assimilating uric acid as the sole carbon source failed to grow at the expense of allantoin, in spite of equal energetic value. Middelhoven et al. (1985) demonstrated that of 14 ascomycetous and basidiomycetous yeast species, growing on uric acid as the sole carbon source, only Stephanoascus ciferrii M.TH. SMITH et al. assimilated allantoin. It is wide-spread in nature and is a source of nitrogen for many yeast species. Nevertheless, several attempts to isolate yeasts from soil by enrichment culture on allantoin as the sole carbon source failed. In the present study such yeasts were looked for in another habitat, viz. decaying mushrooms. It has been known for a long time that mushrooms contain allantoin (Brunel 1931(Brunel , 1936. Mushrooms also contain chitin as a constituent of the fungal cell wall. Assimilation of this polysaccharide by yeasts has never been reported. Attempts were made to isolate such yeasts from decaying mushrooms.The present study was not restricted to isolation of yeasts with characteristic biochemical abilities. In addition, several yeast species present in decaying mushrooms were identified as representatives of wellknown species. However, some very rare species and some strains physiologically similar to Pichia guillermondii but belonging to undescribed species were also isolated. The basidiomycetous yeasts were tested for growth on several polysaccharides of plant origin. MATERIALS AND METHODSIsolation of the strains. The rotting mushrooms sampled were Hericium erinaceus (BULL.:FR.)PERS. on the trunk of a beech tree (Fagus sylvatica L.) in Wageningen (The Netherlands) September 2000,...

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“…The identification of isolated strains was made by sequences of the D1/D2 domains of the rDNA (Fell et al, 2000;Scorzetti et al, 2002) …”

Section: Yeast Identificationmentioning

confidence: 99%

Selection of Xilose-Fermenting Yeast Strains

Silva

Cereda²,

Gomes

et al. 2016

Braz. arch. biol. technol.

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Systematics of basidiomycetous yeasts: a comparison of large subunit D1/D2 and internal transcribed spacer rDNA regions

Cited by 192 publications

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Malassezia nana sp. nov., a novel lipid-dependent yeast species isolated from animals

Malassezia nana sp. nov., a novel lipid-dependent yeast species isolated from animals

The yeast flora of some decaying mushrooms on trunks of living trees

Selection of Xilose-Fermenting Yeast Strains

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