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2010, INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
Three teleomorphic ascomycetous yeast isolates (TA11TR-1T, TA11TR-4 and TA11TR-6) from orchard soil from Tai'an, Shandong province, China, were shown to represent a novel species within the genus Kazachstania based on phenotypic characterization and sequence analyses of the 18S rRNA gene, internal transcribed spacer (ITS) regions and 26S rDNA gene D1/D2 domain. The name Kazachstania taianensis sp. nov. (type strain TA11TR-1T =AS 2.4160T =CBS 11405T) is proposed. K. taianensis sp. nov. clustered in a branch together with Kazachstania sinensis, Kazachstania naganishii and the Kazachstania telluris complex with moderate bootstrap support in the neighbour-joining tree reconstructed from combined 18S and D1/D2 sequences. The novel species possessed unusual ITS 1 (338 bp) and ITS 2 (488 bp) sequences. The total length of the ITS–5.8S rDNA gene region of the species was 983 bp, being much longer than those of other ascomycetous yeast species described so far.
FEMS Yeast Research
Kazachstania jiainicussp. nov., an ascomycetous yeast species isolated from soil in Taiwan2008 •
Antonie van Leeuwenhoek
Kazachstania wufongensis sp. nov., an ascosporogenous yeast isolated from soil in Taiwan2009 •
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
Kazachstania siamensis sp. nov., an ascomycetous yeast species from forest soil in Thailand2007 •
Two strains (S-34T and S-35) of a novel ascomycetous yeast species belonging to the genus Kazachstania were isolated from soil from a mixed deciduous forest in Amphoe Wang Nam Khiao, Nakhon Ratchasima Province, Thailand. The D1/D2 domains of the large-subunit rDNA sequences of the two strains were identical and also indicated a close relationship with respect to Kazachstania aquatica, Kazachstania unispora, Kazachstania aerobia, Kazachstania servazzii and Kazachstania solicola. The most closely related species, K. aquatica, has 14 nucleotide substitutions and three gaps in 566 nt. The phenotypic characteristics of the two strains were typical of those of members of the genus Kazachstania. These characteristics include the formation of a single globose ascospore in an unconjugated and persistent ascus, multilateral budding, the absence of arthrospores and ballistospores, the fermentation of glucose, the inability to assimilate nitrate, negative diazonium blue B and urease reactions, and the presence of ubiquinone Q-6. The novel strains can be distinguished from K. aquatica on the basis of a number of phenotypic characteristics and represent a novel species in the genus Kazachstania, for which the name Kazachstania siamensis sp. nov. is proposed. The type strain is S-34T (=CBS 10361T=NBRC 101968T=BCC 21230T).
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
Kazachstania aquatica sp. nov. and Kazachstania solicola sp. nov., novel ascomycetous yeast species2005 •
The unidentified strains AS 2.0706T, preserved in the China General Microbiological Culture Collection Center (CGMCC), Academia Sinica, Beijing, China, and CBS 6904T, preserved in the Centraalbureau voor Schimmelcultures (CBS), Utrecht, The Netherlands, were shown to represent two novel ascomycetous yeast species of the genus Kazachstania by 18S rDNA, internal transcribed spacer (ITS) region (including 5·8S rDNA) and 26S rDNA D1/D2 domain sequence analysis and electrophoretic karyotype comparison. The names Kazachstania aquatica sp. nov. and Kazachstania solicola sp. nov. are proposed for strains AS 2.0706T and CBS 6904T, respectively. Phylogenetically, the two novel species are closely related to Kazachstania aerobia, Kazachstania servazzii and Kazachstania unispora.
International Journal of Systematic and Evolutionary Microbiology
Candida asparagi sp. nov., Candida diospyri sp. nov. and Candida qinlingensis sp. nov., novel anamorphic, ascomycetous yeast species2004 •
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
Kazachstania ichnusensis sp. nov., a diploid homothallic ascomycetous yeast from Sardinian lentisk rhizosphere2012 •
During an investigation of yeast biota in the rhizosphere of lentisk in Sardinian semi-arid areas, a strain was isolated that could not be assigned to any known species. The sequence of the D1/D2 domain of the large subunit rDNA gene revealed that the strain belonged to the genus Kazachstania and was phylogenetically related to a clade including Kazachstania aerobia, Kazachstania servazzii, Kazachstania solicola and Kazachstania unispora. The novel isolate differed from members of this clade in its ability to assimilate d-glucono-1,5-lactone and its very weak fermentation of glucose and sucrose; its assimilation profile was unique within the genus Kazachstania. Monosporal colonies were able to sporulate, indicating that the species is homothallic. It is proposed that the isolate represents a novel species, Kazachstania ichnusensis sp. nov., with LCF 1675T ( = CBS 11859T) as type strain.
FEMS yeast research
Diversity of yeast species from Dutch garden soil and the description of six novel Ascomycetes2018 •
A Citizen Science initiative by the Westerdijk Fungal Biodiversity Institute and the Utrecht University Museum gave rise to a project where fungal and yeast isolates were obtained and identified from Dutch soil samples. During the current study 386 yeast strains were isolated from 157 different locations in the Netherlands. These strains were identified using sequence data of the large-subunit rRNA gene (D1/D2 region) and the internal transcribed spacer 1 and 2 (ITS1 and ITS2) regions. A total of 53 different yeast species were found as well as 15 potentially novel species. Six novel ascomycetous species are described during this study that include Hanseniaspora mollemarum sp. nov., Ogataea degrootiae sp. nov., Pichia gijzeniarum sp. nov., Saccharomycopsis oosterbeekiorum sp. nov., Trichomonascus vanleenenius sp. nov. and Zygoascus flipseniorum sp. nov. This study made it possible to incorporate numerous yeast isolates into the CBS collection without any restrictions, that make thes...
International journal of systematic and evolutionary microbiology
Kazachstania yasuniensis sp. nov., a novel ascomycetous yeast species found in mainland Ecuador and on the Galápagos2015 •
Seven strains representing a novel yeast species belonging to the genus Kazachstania were found at several collection sites on both mainland Ecuador (Yasuní National Park) and the Galápagos (Santa Cruz Island). Two strains (CLQCA 20-132T and CLQCA 24SC-045) were isolated from rotten wood samples, two further strains (CLQCA 20-280 and CLQCA 20-348) were isolated from soil samples, and three strains (CLQCA 20-198, CLQCA 20-374 and CLQCA 20-431) were isolated from decaying fruits. Sequence analyses of the D1/D2 domains of the large-subunit (LSU) rRNA gene and ribosomal internal transcribed spacer (ITS) region indicated that the novel species is most closely related to Kazachstania servazzii and Kazachstania unispora. Although the strains could not be distinguished from one another based upon their differing geographical origins, they could be differentiated according to their isolation source (fruit, soil or wood) by ITS sequencing. The species name of Kazachstania yasuniensis sp. nov....
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
Tetrapisispora namnaonensis sp. nov., a novel ascomycetous yeast species isolated from forest soil of Nam Nao National Park, Thailand2005 •
Twenty-one strains of a novel ascomycetous yeast species were isolated from soil collected in three kinds of natural forest, namely a dry dipterocarp forest, a mixed deciduous forest and a pine forest, in Nam Nao National Park, Phetchabun province, Thailand. The strains formed asci containing one to four ovoid to reniform ascospores, assimilated glucose, galactose and glycerol, fermented glucose and galactose vigorously and contained ubiquinone Q-6, indicating that they belonged to the genus Tetrapisispora. A comparative analysis of the small subunit rDNA (SSU rDNA) and the D1/D2 domain of the large subunit rDNA (LSU rDNA) of all available sequences for ascomycetous yeasts confirmed that the strains were phylogenetically related to the genus Tetrapisispora. All strains had identical nucleotide sequences in the D1/D2 domain of the LSU rDNA and differed from the nearest species, Tetrapisispora arboricola IFO 10925T, by 6·4 % nucleotide substitutions. The strains differed from Tetrapis...
The Journal of General and Applied Microbiology
Lindnera wuzhiensis sp. nov., a novel ascomycetous yeast species2010 •
Cerveteri (RM), Palazzo del Granarone - Aula consiliare, Venerdì 21 aprile 2023
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