Cystofilobasidiales, a new order of basidiomycetous yeasts

Fell, Jack W.; Rœijmans, H. J.; Boekhout, Teun

doi:10.1099/00207713-49-2-907

Cited by 64 publications

(40 citation statements)

References 31 publications

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“…These partial SSU rDNA sequences were most similar (>98%) to M. frigida and M. psychrophilia in BLAST searches of GenBank. Likewise, analysis of 600 nucleotides of large subunit (LSU) rDNA (data not shown) supported this relationship; DNA sequences associated with subfossil U. cylindrica were nearly identical (differing in only one nucleotide) to those of M. frigida (Fell et al 1999). The partial SSU rDNA and partial LSU sequences flanked and overlapped the ITS region amplified from 94-G-11 and three other subfossil-associated sequences by 200 and 50 nucleotides, respectively.…”

Section: Resultsmentioning

confidence: 61%

Sequences of psychrophilic fungi amplified from glacier-preserved ascolichens

DePriest¹,

Ivanova²,

Fahselt³

et al. 2000

Can. J. Bot.

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Ribosomal DNA sequences were amplified from subfossils of the ascolichen Umbilicaria cylindrica (L.) Delise ex Duby collected at the ablating edges of Greenland glaciers. Surprisingly, phylogenetic analysis indicated that the amplified rDNA sequences were not closely related to those of the lichen-forming fungus but rather represented two groups of psychrophilic basidiomycetes (orders Cystofilobasidiales and Sporidiales) and one group of ascomycetes (order Leotiales). Two of these groups, the Sporidiales and the Leotiales, include other fungi previously detected in DNA extracted from the grass clothing of the Tyrolean Iceman desiccated and frozen for over 3000 years and also in 2000-and 4000-year-old ice core samples from northern Greenland. Large subunit ribosomal DNA sequences representing the group Cystofilobasidiales were nearly identical to those of the basidioyeast saprobe Mrakia frigida. The adjacent internal transcribed spacer sequence was more than 98% similar to those from three samples of U. cylindrica from different sites that had been subjected to ice burial for various lengths of time, suggesting they also were Mrakia sequences. Although ancient contamination of multiple U. cylindrica specimens with fungi such as Mrakia cannot be ruled out, it is more probable that saprobic colonization of the subfossil tissues by psychrophilic fungi proceeded during recent ice melt.Key words: ancient DNA, small subunit ribosomal DNA, 18S ribosomal DNA, phylogenetic analysis, psychrophilic fungi, lichen-forming fungi.Résumé : Les auteurs ont amplifié les séquences de l'ADN ribosomal provenant de subfossiles de l'ascolichen, Umbilicaria cylindrica (L.) Delise ex Duby, récoltés sur les marges d'ablation de glaciers, au Groenland. De façon surprenante, les analyses phylogénétiques indiquent que les séquences de rADN amplifiées ne sont pas étroitement apparentées avec celles du champignon formant ce lichen, mais représente plutôt deux groupes de champignons basidiomycètes psychrophiles (ordre des Cystofilobasidiales et des Sporidiales) et un groupe d'ascomycètes (ordre des Léo-tiales). Deux de ces groupes, les Sporidiales et les Léotiales, incluent d'autres champignons préalablement décelés dans l'ADN extrait des habits constitués d'herbes portés par l'homme des glaces Tyroléen desséché et congelé depuis plus de 3000 ans, ainsi que de carottes de glaces âgée de 2000 et 4000 ans, échantillonnées au nord du Groenland. Les grandes sous-unités des séquences d'ADN représentant le groupe des Cystofilobasidiales sont presqu'identiques à celles de la basidiolevure saprophyte, le Mrakia frigida. La séquence de l'espaceur interne transcrit adjacent ressemble à plus de 98% à celles provenant de trois échantillons de l'U. cylindrica récoltés sur différents sites ayant été soumis au recouvrement par la glace pendant différentes périodes de temps, ce qui suggère qu'il s'agirait également de séquences du Mrakia. Bien qu'on ne puisse exclure la possibilité de contamination des spécimens multiples de l'U. cylindrica par des c...

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Section: Resultsmentioning

confidence: 61%

Sequences of psychrophilic fungi amplified from glacier-preserved ascolichens

DePriest¹,

Ivanova²,

Fahselt³

et al. 2000

Can. J. Bot.

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“…In spite of different culture pigmentation, a close relationship had been observed between Cystofilobasidium capitatum and Cystofilobasidium lari-marini in molecular phylogenetic studies using 26S rDNA sequences (Fell et al, 1999). Moreover, Cystofilobasidium capitatum and Cystofilobasidium lari-marini are also very similar with respect to basidial morphology (Fell & Statzell-Tallman, 1992), septal pore ultrastructure and nutritional profiles (Table 3 and Fig.…”

Section: B I S P O R I D I I C L a R I -M A R I N I C C A P Imentioning

confidence: 82%

“…Cystofilobasidium ferigula and the other species in the genus assimilate inositol, glucuronate, nitrate and nitrite, possess a CoQ 8 system (Fell et al, 1999) and have xylose in the cell walls (Fell et al, 1999). Moreover, Cystofilobasidium ferigula does not utilize any of the aromatic compounds tested (Table 2).…”

Section: B I S P O R I D I I C L a R I -M A R I N I C C A P Imentioning

confidence: 99%

“…In contrast to the parenthesomes, these cisternae do not have an exact position in relation to the septal pore and lack an additional internal layer. At the molecular level, phylogenetic studies using 26S rDNA sequences indicate a close relationship between Cystofilobasidium ferigula (Cryptococcus ferigula) and the remaining species of Cystofilobasidium (Fell et al, 1999).…”

Section: B I S P O R I D I I C L a R I -M A R I N I C C A P Imentioning

confidence: 99%

“…More recently, Cystofilobasidium lari-marini (Sae$ z et Nguyen) Fell et Statzell-Tallman (cream-coloured) was transferred from Leucosporidium Fell, Statzell, Hunter et Phaff (Fell & Statzell-Tallman, 1992). The order Cystofilobasidiales (Fell et al, 1999) Fell et al (1999), the Cystofilobasidiales clade includes two subclades, the Mrakia subclade and the Cystofilobasidium subclade. The latter group includes all known species of Cystofilobasidium and also Cryptococcus ferigula and Cryptococcus macerans.…”

Section: Abbreviationmentioning

confidence: 99%

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Taxonomic studies on the genus Cystofilobasidium: description of Cystofilobasidium ferigula sp. nov. and clarification of the status of Cystofilobasidium lari-marini.

Sampaio¹,

Gadanho²,

Bauer³

2001

International Journal of Systematic and Evolutionary Microbiology

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A new species of the genus Cystofilobasidium is described as Cystofilobasidium ferigula sp. nov. The new taxon represents the teleomorphic stage of Cryptococcus ferigula and was obtained in mating experiments using three strains deposited in the Portuguese Yeast Culture Collection (mating types A1) and a recent isolate (mating type A2). Cystofilobasidium ferigula is characterized using an integrated approach encompassing morphological studies, investigation of the ultrastructure of the septal pore, a comparative study of physiological traits, determination of the DNA base composition, DNA reassociation experiments and PCR fingerprinting. During the course of this study, a close similarity of microsatellite-primed PCR fingerprints was detected between Cystofilobasidium lari-marini and Cystofilobasidium capitatum. DNA-DNA reassociation experiments gave high homology values, which indicates that Cystofilobasidium lari-marini must be regarded as a synonym of Cystofilobasidium capitatum.

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Rhizobium Presence and Functions in Microbiomes of Non-leguminous Plants

Díez-Méndez

Menéndez

2020

Soil Biology

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The Springer series Soil Biology publishes topical volumes in the fields of microbiology, environmental sciences, plant sciences, biotechnology, biochemistry, microbial ecology, mycology and agricultural sciences.Special emphasis is placed on methodological chapters or volumes. This includes coverage of new molecular techniques relevant to soil biology research or to monitoring and assessing soil quality as well as advanced biotechnological applications. Leading international authorities with a background in academia, industry or government will contribute to the series as authors or editors.

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Cystofilobasidiales, a new order of basidiomycetous yeasts

Cited by 64 publications

References 31 publications

Sequences of psychrophilic fungi amplified from glacier-preserved ascolichens

Sequences of psychrophilic fungi amplified from glacier-preserved ascolichens

Taxonomic studies on the genus Cystofilobasidium: description of Cystofilobasidium ferigula sp. nov. and clarification of the status of Cystofilobasidium lari-marini.

Rhizobium Presence and Functions in Microbiomes of Non-leguminous Plants

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