Candida laoshanensis sp. nov. and Candida qingdaonensis sp. nov., anamorphic, ascomycetous yeast species isolated from decayed wood (original) (raw)
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Antonie Van Leeuwenhoek International Journal of General and Molecular Microbiology, 2008
In a taxonomic study on the ascomycetous yeasts isolated from plant materials collected in tropical forests in Yunnan and Hainan Provinces, southern China, four strains isolated from tree sap (YJ2ET) and flowers (YF9ET, YWZH3CT and YYF2AT) were revealed to represent four undescribed yeast species. Molecular phylogenetic analysis based on the large subunit (26S) rRNA gene D1/D2 domain sequences showed that strain YJ2ET was located in a clade together with Candida haemulonii and C. pseudohaemulonii. Strain YF9ET was most closely related to C. azyma and strain YWZH3CT to C. sorbophila and C. spandovensis. Strain YYF2AT was clustered in a clade containing small-spored Metschnikowia species and related anamorphic Candida species. The new strains differed from their closely related described species by more than 10% mismatches in the D1/D2 domain. No sexual states were observed for the four strains on various sporulation media. The new species are therefore assigned to the genus Candida and described as Candida alocasiicola sp. nov. (type strain, YF9ET = AS 2.3484T = CBS 10702T), Candida hainanensis sp. nov. (type strain, YYF2AT = AS 2.3478T = CBS 10696T), Candida heveicola sp. nov. (type strain, YJ2ET = AS 2.3483T = CBS 10701T) and Candida musiphila sp. nov. (type strain, YWZH3CT = AS 2.3479T = CBS 10697T).
Candida borneonana sp. nov., a methanol-assimilating anamorphic yeast isolated from decaying fruit
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 2012
Five strains of a previously uncharacterized anamorphic, methanol-assimilating yeast species are described here, for which the name Candida borneonana is proposed. The strains were isolated from fruit waste collected in markets in Brunei, Borneo. The sequences of the D1/D2 domains of the large subunit rRNA genes, the internal transcribed spacer (ITS) regions and the 18S rRNA genes were identical between the isolates and differed from the corresponding sequences of all previously described yeast species. Phylogenetic analysis of these sequences showed that the new species formed a cluster with species of the genus Kuraishia, the closest related species being K. capsulata (6 % nucleotide substitutions in the D1/D2 domain). The type strain, 11-487T, has been deposited in the Centralbureau voor Schimmelcultures (Utrecht, The Netherlands) as CBS 12507T, the Culture Collection of Yeasts (Bratislava, Slovakia) as CCY 29-182-1T and the National Collection of Agricultural and Industrial Micr...
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 2011
Five strains of a novel yeast species were isolated from rotting wood samples collected in an Amazonian forest site in the state of Roraima, northern Brazil. The sequences of the D1/D2 domains of the large subunit of the rRNA gene showed that this species belongs to the Scheffersomyces clade and is related to Candida coipomoensis, Candida lignicola and Candida queiroziae. The novel species Candida amazonensis sp. nov. is proposed to accommodate these isolates. The type strain of C. amazonensis sp. nov. is UFMG-HMD-26.3T ( = CBS 12363T = NRRL Y-48762T).