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  • 1
    Electronic Resource
    Electronic Resource
    Cryptic DNA plasmids of the heterothallic yeast Saccharomycopsis crataegensis (1987)
    Springer
    Current genetics 12 (1987), S. 297-304 
    Details
    ISSN: 1432-0983
    Keywords: Fungi ; S. crataegensis ; Yeast ; Plasmid ; Linear DNA
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Three DNA plasmids, designated pScrl-1, pScrl-2, and pScrl-3 have been found in a strain of the heterothallic yeast Saccharomycopsis crataegensis (NRRL Y-5902). pScrl-l, -2 and -3 are, respectively, 15, 7, and 5 kilobase pairs (kbp) in size. Based on the results of exonuclease digestions, all three plasmids appear to be linear molecules with blocked 5′ ends. All three plasmids also have a lower buoyant density than does nuclear DNA of S. crataegensis. The two lower molecular weight plasmids hybridize strongly with one another, but only weakly to the higher molecular weight plasmid. Two of four related S. crataegensis strains surveyed were found to contain two plasmids that are of the same size as the two larger plasmids of Y-5902. Evidence is presented indicating that the plasmids in strain Y-5902 reside in the cytosol since they were found not to be located within the major organelles (mitochondria and nuclei).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00435293
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  • 2
    Electronic Resource
    Electronic Resource
    Fermentation of Xylose from Biomass (1983)
    [s.l.] : Nature Publishing Company
    Nature biotechnology 1 (1983), S. 493-493 
    Details
    ISSN: 1546-1696
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: [Auszug] An enormous worldwide research effort is under way to convert plant materials to ethanol and other industrially useful organic compounds. The potential of this resource is significant: in the U.S. alone, annual production of agricultural wastes and residues exceeds 500 million tons dry weight. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nbt0883-493
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  • 3
    Electronic Resource
    Electronic Resource
    Phylogenetic relationships among species of the genus Issatchenkia Kudriavzev (1990)
    Springer
    Antonie van Leeuwenhoek 58 (1990), S. 235-240 
    Details
    ISSN: 1572-9699
    Keywords: Issatchenkia ; phylogeny ; ribosomal RNA sequences ; yeasts
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The phylogenetic relatedness of Issatchenkia spp. was estimated from partial rRNA sequences in two regions of the large subunit and one region of the small subunit. I. terricola was the most divergent species of the genus, differing from other members by 18% nucleotide differences in the highly variable 25S-635 region. These data indicate Issatchenkia to be the most divergent ascomycetous yeast genus presently known.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00399334
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  • 4
    Electronic Resource
    Electronic Resource
    Phylogenetic relationships among species ofWilliopsis andSaturnospora gen. nov. as determined from partial rRNA sequences (1991)
    Springer
    Antonie van Leeuwenhoek 60 (1991), S. 21-30 
    Details
    ISSN: 1572-9699
    Keywords: phylogeny ; ribosomal RNA sequences ; Saturnospora ; Williopsis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Phylogenetic relationships among those yeast species that form saturn-shaped ascospores and which are assigned to the generaWilliopsis andPichia were estimated from their extent of nucleotide sequence divergence in three regions of ribosomal RNA. ThePichia species (P. dispora, P. saitoi, P. zaruensis andP. sp. nov.) are a closely clustered group only distantly related toWilliopsis, and it is proposed that they be reassigned toSaturnospora gen. nov. The extent of divergence amongWilliopsis species (W. californica, W. mucosa, W. pratensis, W. saturnus andW. sp. nov.) is greater than that previously observed within other ascomycetous yeast genera.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00580437
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  • 5
    Electronic Resource
    Electronic Resource
    DNA relatedness among saturn-spored yeasts assigned to the generaWilliopsis andPichia (1991)
    Springer
    Antonie van Leeuwenhoek 60 (1991), S. 13-19 
    Details
    ISSN: 1572-9699
    Keywords: DNA relatedness ; Pichia ; saturn-spored yeasts ; species formation ; Williopsis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Saturn-spored species assigned to the generaWilliopsis andPichia were compared from extent of nuclear DNA complementarity. Of thePichia spp., four were recognized as distinct taxa:P. dispora, P. saitoi, P. zaruensis andPichia sp. nov. AmongWilliopsis spp., the following were accepted:W. californica, W. mucosa comb. nov.,W. pratensis, W. saturnus var.saturnus, W. saturnus var.mrakii comb. nov.,W. saturnus var.sargentensis comb. nov.,W. saturnus var.subsufficiens comb. nov. andWilliopsis sp. nov. The newPichia andWilliopsis species are described elsewhere. Moderate (36–68%) DNA relatedness was detected between the formerPichia sargentensis and varieties ofW. saturnus again demonstrating that nitrate assimilation is not a reliable criterion for separating yeast species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00580436
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  • 6
    Electronic Resource
    Electronic Resource
    Saccharomyces bulderi sp. nov., a yeast that ferments gluconolactone (2000)
    Springer
    Antonie van Leeuwenhoek 77 (2000), S. 223-228 
    Details
    ISSN: 1572-9699
    Keywords: fermentation ; gluconolactone ; raffinose ; Saccharomyces bulderi ; yeast
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract An unknown yeast species was isolated from maize silage and was determined to be novel on the basis of morphological and physiological characteristics, nucleotide sequence of domain D1/D2 of LSU rDNA and from its electrophoretic karyotype. The name for the proposed new species is Saccharomyces bulderi Middelhoven, Kurtzman et Vaughan-Martini (type strain CBS 8638, NRRL Y-27203, DBVPG 7127). S. bulderi is closely related to S. barnettii and S. exiguus from which it can be distinguished by having a double vitamin requirement of biotin and thiamine and by no or slow aerobic growth on raffinose, a sugar that on the contrary is fermented rapidly. Gluconolactone is rapidly fermented with ethanol, glycerol and carbon dioxide being the main products.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1002414301967
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  • 7
    Electronic Resource
    Electronic Resource
    Identification and phylogeny of ascomycetous yeasts from analysis of nuclear large subunit (26S) ribosomal DNA partial sequences (1998)
    Springer
    Antonie van Leeuwenhoek 73 (1998), S. 331-371 
    Details
    ISSN: 1572-9699
    Keywords: Ascomycetous yeasts ; phylogeny ; ribosomal DNA ; systematics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Approximately 500 species of ascomycetous yeasts, including members of Candida and other anamorphic genera, were analyzed for extent of divergence in the variable D1/D2 domain of large subunit (26S) ribosomal DNA. Divergence in this domain is generally sufficient to resolve individual species, resulting in the prediction that 55 currently recognized taxa are synonyms of earlier described species. Phylogenetic relationships among the ascomycetous yeasts were analyzed from D1/D2 sequence divergence. For comparison, the phylogeny of selected members of the Saccharomyces clade was determined from 18S rDNA sequences. Species relationships were highly concordant between the D1/D2 and 18S trees when branches were statistically well supported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1001761008817
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  • 8
    Electronic Resource
    Electronic Resource
    Saturnospora ahearnii, a new salt marsh yeast from Louisiana (1991)
    Springer
    Antonie van Leeuwenhoek 60 (1991), S. 31-34 
    Details
    ISSN: 1572-9699
    Keywords: new saturn-spored yeast ; Saturnospora
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Saturnospora ahearnii, a new, nonhyphal saturn-spored yeast, is described. The type strain (NRRL Y-7555, CBS 6121) of this species was isolated from the rhizosphere of marsh grass in Louisiana. Comparisons of nuclear DNA complementarity showedS. ahearnii to be closely related toS. saitoi, a species presently known only from Japan.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00580438
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  • 9
    Electronic Resource
    Electronic Resource
    Relationships among the generaAshbya, Eremothecium, Holleya andNematospora determined from rDNA sequence divergence (1995)
    Springer
    Journal of industrial microbiology and biotechnology 14 (1995), S. 523-530 
    Details
    ISSN: 1476-5535
    Keywords: Ashbya ; Eremothecium ; Holleya ; Nematospora ; rDNA ; Molecular systematics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary Species of the generaAshbya, Eremothecium, Holleya, andNematospora were compared from extent of divergence in a 580-nucleotide region near the 5′ end of the large subunit (26S) ribosomal DNA gene. The four genera are closely related and comprise a subclade of the hemiascomycetes. Because the taxa show little divergence, it is proposed that all be placed in the genusEremothecium. The family Eremotheciaceae, fam. nov., is proposed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01573968
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  • 10
    Electronic Resource
    Electronic Resource
    Nucleotide sequence analysis of a variable region of the large subunit rRNA for identification of marine-occurring yeasts (1990)
    Springer
    Current microbiology 21 (1990), S. 295-300 
    Details
    ISSN: 1432-0991
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A 230-nucleotide region of the large subunit (LSU) ribosomal RNA was examined to determine whether signature nucleotide sequences could be used for species identifications of basidiomycetous yeasts. Multiple strains of genetically defined heterothallic species ofRhodosporidium, Leucosporidium, Cystofilobasidium, andSporidiobolus demonstrated that nucleotide sequences within these species are homologous and that differences between species range from 1 to 20 or more bases. Also included in this study were several homothallic species of these teleomorphic genera and some anamorphs assigned toRhodotorula andCandida. Those results indicated close relationships among certain homothallic species, particularly in the genusMrakia, and potential relationships of homothallic and anamorphic strains to several teleomorphs. The data suggest that LSU sequences can be used for yeast identifications with the possible exception of closely related homothallic species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02092094
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