Search

Five novel yeast species belonging to the Kodamaea clade are proposed in this paper based on nine strains isolated from mushrooms and soil in Taiwan between 2007 and 2008. These nine yeast strains were found to represent five novel yeast species based on their D1/D2 domain sequences of the large subunit (LSU) rRNA gene and physiological characteristics. Sequence analysis of the D1/D2 domain of the LSU rRNA gene revealed that the five species are phylogenetically related to Kodamaea and Candida sp. clustered into the Kodamaea clade in the phylogenetic tree. All the species reproduced asexually, and no ascospores could be found. Therefore, the scientific names of Candida alishanica sp. nov., Candida hsintzibuensis sp. nov., Candida kaohsiungensis sp. nov., Candida lidongshanica sp. nov., and Candida smagusa sp. nov. were proposed to accommodate these strains. Strains of the first species were discovered from soil; two strains of the second species were isolated from soil and the fruiting body of a mushroom, respectively; and strains of the latter three species were recovered from fruiting bodies of mushrooms. The type strains are listed as follows: C. alishanica GY43S11T(=CBS 11429T=BCRC 23188T); C. hsintzibuensis EJ7S06T(=CBS 11427T=BCRC 23183T); C. kaohsiungensis GJ10M01T(=CBS 11435T=BCRC 23197T); C. lidongshanica SD5S01T(=CBS 11426T=BCRC 23191T); and C. smagusa EN4M03T(=CBS 11430T=BCRC 23186T).

A new yeast species, Vanderwaltozyma verrucispora, is proposed in this study based on two strains isolated from partially decayed leaves in Japan and one strain from soil in Taiwan. The species is characterized by the fermentation of glucose and galactose, formation of one to four spheroidal to ellipsoidal ascospores with warty surfaces in each ascus, and assimilation of a few carbon and nitrogen compounds. Genus assignment and distinction of the species from the other two recognized species of Vanderwaltozyma is based on the morphological and physiological characteristics, and phylogenetic analysis of nucleotide sequences of the D1/D2 domains of the large subunit (LSU) rRNA gene. From these comparisons, the name V. verrucispora sp. nov. is proposed. Sequence analysis of the D1/D2 domains of the LSU rRNA gene reveals that the phylogenetically closest relative of V. verrucispora is Vanderwaltozyma yarrowii. The type strain of the new species, which was isolated from a partially decayed leaf in Kagoshima Prefecture, Japan, is NBRC 1884(T) (=CBS 10887(T)=BCRC 23141(T)).

Five novel yeast species belonging to the Kodamaea clade are proposed in this paper based on nine strains isolated from mushrooms and soil in Taiwan between 2007 and 2008. These nine yeast strains were found to represent five novel yeast species based on their D1/D2 domain sequences of the large subunit (LSU) rRNA gene and physiological characteristics. Sequence analysis of the D1/D2 domain of the LSU rRNA gene revealed that the five species are phylogenetically related to Kodamaea and Candida sp. clustered into the Kodamaea clade in the phylogenetic tree. All the species reproduced asexually, and no ascospores could be found. Therefore, the scientific names of Candida alishanica sp. nov., Candida hsintzibuensis sp. nov., Candida kaohsiungensis sp. nov., Candida lidongshanica sp. nov., and Candida smagusa sp. nov. were proposed to accommodate these strains. Strains of the first species were discovered from soil; two strains of the second species were isolated from soil and the fruiting body of a mushroom, respectively; and strains of the latter three species were recovered from fruiting bodies of mushrooms. The type strains are listed as follows: C. alishanica GY43S11(T) (=CBS 11429(T) =BCRC 23188(T) ); C. hsintzibuensis EJ7S06(T) (=CBS 11427(T) =BCRC 23183(T) ); C. kaohsiungensis GJ10M01(T) (=CBS 11435(T) =BCRC 23197(T) ); C. lidongshanica SD5S01(T) (=CBS 11426(T) =BCRC 23191(T) ); and C. smagusa EN4M03(T) (=CBS 11430(T) =BCRC 23186(T) ).

Nine anamorphic, ascomycetous yeast strains belonging to the Pichia anomala clade were recovered from forest soil in 2006 in Taiwan. The nine yeast strains represent four novel yeast species based on the sequences of their D1/D2 domain of the large subunit (LSU) rRNA gene and their physiological characteristics. The scientific names of Candida dajiaensis sp. nov., Candida yuanshanicus sp. nov., Candida jianshihensis sp. nov., and Candida sanyiensis sp. nov. are proposed for these novel yeast species. The type strains are C. dajiaensis SM11S03(T) (=CBS 10590(T)=BCRC 23099(T)), C. yuanshanicus SY3S02(T) (=CBS 10589(T)=BCRC 23100(T)), C. jianshihensis SM8S04(T) (=CBS 10591(T)=BCRC 23096(T)), and C. sanyiensis SA1S06(T) (=CBS 10592(T)=BCRC 23094(T)). Sequence analysis of the D1/D2 of the LSU rRNA gene revealed that the three species, C. dajiaensis, C. yuanshanicus and Pichia onychis, shared a separate branch in the phylogenetic tree, C. jianshihensis is phylogenetically related to Candida ulmi and Pichia alni, and the phylogenetically closest relative of C. sanyiensis is Pichia populi.

A new ascomycetous yeast species, Kazachstania jiainicus, is proposed based on two strains isolated from soil in Taiwan. The species is characterized by forming one or two globose spores in each ascus, fermenting glucose and galactose and assimilating few carbon and nitrogen compounds. Genus assignment and distinction of the strains from recognized species is based on ascosporulation and phylogenetic analysis of nucleotide sequences from domains D1/D2 of the large subunit (26S) rRNA gene. Sequence analysis showed that the species was phylogenetically related to the genus Kazachstania. The species was distinct from recognized species of Kazachstania on the basis of carbon and nitrogen assimilation patterns. Based on the characteristics described above, the species is recognized as a novel species of the genus Kazachstania, and the name Kazachstania jiainicus sp. nov. is proposed. The type strain is SF1S05T (=CBS10587T=NBRC 102655T=BCRC 23098T), which was isolated from soil in Jiain, Hualein, Taiwan.