scholarly journals Metschnikowia sinensis sp. nov., Metschnikowia zizyphicola sp. nov. and Metschnikowia shanxiensis sp. nov., novel yeast species from jujube fruit

2006 ◽  
Vol 56 (9) ◽  
pp. 2245-2250 ◽  
Author(s):  
Meng-Lin Xue ◽  
Li-Qun Zhang ◽  
Qi-Ming Wang ◽  
Ji-Shu Zhang ◽  
Feng-Yan Bai

Eight yeast strains were isolated from jujube fruit surfaces collected in Shanxi and Shandong Provinces, China. All eight strains produced needle-shaped ascospores under suitable conditions. Three separate groups, representing three novel species in the genus Metschnikowia, were recognized by sequence comparisons of the 26S rDNA D1/D2 domain and internal transcribed spacer (ITS) region. The names Metschnikowia sinensis sp. nov. (type strain XY103T=AS 2.3110T=CBS 10357T), Metschnikowia zizyphicola sp. nov. (type strain XY201T=AS 2.3111T=CBS 10358T) and Metschnikowia shanxiensis sp. nov. (type strain XY801T=AS 2.3112T=CBS 10359T) are proposed for the three novel species. Phylogenetic analysis of the 26S rDNA D1/D2 domain sequence showed that these three novel species are clustered in a clade together with the previously described species Metschnikowia fructicola, Metschnikowia andauensis, Metschnikowia pulcherrima and Metschnikowia chrysoperlae.

Author(s):  
Michael Brysch-Herzberg ◽  
Dénes Dlauchy ◽  
Martin Seidel ◽  
Gábor Péter

Five yeast strains isolated from forest habitats in Hungary and Germany were characterized phenotypically and by sequencing of the D1/D2 domain of the large subunit rRNA gene and the ITS1-5.8S-ITS2 (ITS) region of the rRNA gene. The strains have identical D1/D2 domain and ITS region sequences. By sequence comparisons, Candida mycetangii and Candida maritima were identified as the closest relatives among the currently recognized yeast species. The DNA sequences of the investigated strains differ by 1.2 % (six substitutions) in the D1/D2 domain and by 3.5 % (12 substitutions and eight indels) in the ITS region from the type strain of C. mycetangii (CBS 8675T) while by 1.2 % (six substitutions and one indel) in the D1/D2 domain and by 7 % (32 substitutions and seven indels) in the ITS region from the type strain of C. maritima (CBS 5107T). Because the intraspecies heterogeneity seems to be very low and the distance to the most closely related species is above the commonly expected level for intraspecies variability Cyberlindnera sylvatica sp. nov. (holotype, CBS 16335T; isotype, NCAIM Y.02233T; MycoBank no., MB 835268) is proposed to accommodate the above-noted five yeast strains. Phenotypically the novel species can be distinguished from C. mycetangii and C. maritima by the formation of ascospores. Cyberlindnera sylvatica forms one or two hat-shaped ascospores per ascus on many different media as well as well-developed pseudohyphae and true hyphae. Additionally, we propose the transfer of three anamorphic members of the Cyberlindnera americana sub-clade to the genus Cyberlindnera as the following new taxonomic combinations Cyberlindnera maritima f.a., comb. nov., Cyberlindnera mycetangii f.a., comb. nov. and Cyberlindnera nakhonratchasimensis f.a., comb. nov.


2010 ◽  
Vol 60 (7) ◽  
pp. 1697-1701 ◽  
Author(s):  
Shi-An Wang ◽  
Fu-Li Li ◽  
Feng-Yan Bai

During a study of newly isolated yeast strains utilizing d-xylose as sole carbon source, eight strains, isolated from decayed wood, were found to represent two novel anamorphic, ascomycetous yeast species based on sequence analysis of the 26S rDNA D1/D2 domain and internal transcribed spacer region, and phenotypic characterization. The names Candida laoshanensis sp. nov. (type strain MLRW 6-2T=AS 2.4030T=CBS 11389T) and Candida qingdaonensis sp. nov. (type strain MLRW 7-1T=AS 2.4031T=CBS 11390T) are proposed for these two novel species; the closest relatives of the two novel species are Candida pomicola and Candida marilandica, respectively.


2005 ◽  
Vol 55 (5) ◽  
pp. 2219-2224 ◽  
Author(s):  
Zuo-Wei Wu ◽  
Feng-Yan Bai

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.


2012 ◽  
Vol 62 (Pt_6) ◽  
pp. 1434-1437 ◽  
Author(s):  
Chin-Feng Chang ◽  
Li-Yin Huang ◽  
Shan-Fu Chen ◽  
Ching-Fu Lee

Three apiculate yeast strains, EJ7M09T, GJ5M15 and GJ15M04, isolated from mushrooms in Taiwan were found to represent a novel species of the genus Kloeckera. The phylogenetically closest relative of this novel species is Hanseniaspora occidentalis, but the type strain of H. occidentalis differed by 4.6 % divergence (25 substitutions; 5 gaps) in the sequence of the D1/D2 domain of the large subunit rRNA gene. This difference clearly suggests that the three strains represent a distinct species. As none of the strains that were examined in this study produced ascospores or exhibited conjugation on common sporulation medium either alone or in a pairwise mixture, this species could be considered as an anamorphic member of the genus Hanseniaspora, and a novel species, Kloeckera taiwanica sp. nov., is proposed, with EJ7M09T ( = BCRC 23182T = CBS 11434T) as the type strain.


2004 ◽  
Vol 54 (5) ◽  
pp. 1857-1859 ◽  
Author(s):  
Michael Brysch-Herzberg ◽  
Marc-André Lachance

Two yeast strains were isolated from a bumblebee and bumblebee honey. The strains were almost identical in their D1/D2 domain of the large-subunit rDNA and their physiological abilities. In both respects the strains resembled Wickerhamiella domercqiae. On the basis of these data, it is proposed that the strains represent a novel species with the name Candida bombiphila sp. nov. The type strain is CBS 9712T (=NRRL Y-27640T=MH268T).


2013 ◽  
Vol 63 (Pt_1) ◽  
pp. 372-376 ◽  
Author(s):  
Gino Ciafardini ◽  
Biagi Angelo Zullo ◽  
Livio Antonielli ◽  
Laura Corte ◽  
Luca Roscini ◽  
...  

During an investigation of olive oil microbiota, three yeast strains were found to be divergent from currently classified yeast species according to the sequences of the D1/D2 domain of the gene encoding the rRNA large subunit (LSU) and the internal transcribed spacer region including the gene for 5.8S rRNA. Phylogenetic analysis revealed that these strains, designated CBS 12509, CBS 12510T and CBS 12511, represent a novel anascosporogenous species described herein as Yamadazyma terventina sp. nov; the type strain is DAPES 1924T ( = CBS 12510T = NCAIM Y.02028T). This novel species was placed in the Yamadazyma clade, with Yamadazyma scolyti, Candida conglobata and Candida aaseri as closest relatives. Y. terventina differs from the above-mentioned species in the ability to strongly assimilate dl-lactate and weakly assimilate ethanol.


2015 ◽  
Vol 65 (Pt_8) ◽  
pp. 2466-2471 ◽  
Author(s):  
Melissa Fontes Landell ◽  
Luciana R. Brandão ◽  
Silvana V. B. Safar ◽  
Fatima C. O. Gomes ◽  
Ciro R. Félix ◽  
...  

Two independent surveys of yeasts associated with different bromeliads in different Brazilian regions led to the proposal of a novel yeast species, Bullera vrieseae sp. nov., belonging to the Tremellales clade (Agaricomycotina, Basidiomycota). Analysis of the sequences in the internal transcribed spacer (ITS) region and D1/D2 domain of the LSU rRNA gene suggested affinity to a phylogenetic lineage that includes Bullera miyagiana and Bullera sakaeratica. Six isolates of the novel species were obtained from different bromeliads and regions in Brazil. Sequence analysis of the D1/D2 domains of the large subunit of the rRNA gene showed that the novel species differs from B. miyagiana and B. sakaeratica by 85 and 64 nt substitutions, respectively and by more than 75 nt substitutions in the ITS region. Phenotypically, Bullera vrieseae sp. nov. can be distinguished from both species based on the assimilation of meso-erythritol, which was negative for B. vrieseae sp. nov. but positive for the others, assimilation of d-glucosamine, which was positive for B. vrieseae sp. nov. but negative for B. miyagiana and of l-sorbose, which was negative for B. vrieseae sp. nov. but positive for B. sakaeratica. The novel species Bullera vrieseae sp. nov. is proposed to accommodate these isolates. The type strain of Bullera vrieseae sp. nov. is UFMG-CM-Y379T (BRO443T; ex-type CBS 13870T).


2012 ◽  
Vol 62 (Pt_8) ◽  
pp. 2039-2044 ◽  
Author(s):  
Qi-Ming Wang ◽  
Teun Boekhout ◽  
Feng-Yan Bai

Five yeast strains isolated from plant leaves collected in south-east Tibet formed cream to brownish colonies and produced asymmetrical ballistoconidia and CoQ-9 as the major ubiquinone. Sequence analysis of the 26S rRNA D1/D2 domain and the internal transcribed spacer region indicated that these strains represented two novel species of the genus Bensingtonia. The names Bensingtonia rectispora sp. nov. (type strain XZ 4C5T = CGMCC 2.02635T = CBS 10710T) and Bensingtonia bomiensis sp. nov. (type strain XZ 33D1T = CGMCC 2.02670T = CBS 10713T) are proposed for the two novel species, which are phylogenetically closely related to Bensingtonia naganoensis, Bensingtonia pseudonaganoensis and the type species of the genus, Bensingtonia ciliata.


2004 ◽  
Vol 54 (5) ◽  
pp. 1877-1882 ◽  
Author(s):  
Qi-Ming Wang ◽  
Feng-Yan Bai ◽  
Hui-Zhong Lu ◽  
Jian-Hua Jia ◽  
Masako Takashima

Among yeasts isolated from plant leaves collected in different regions of China that form whitish or yellowish colonies and symmetrical ballistoconidia, four strains were shown to represent three novel Bullera species by conventional and molecular taxonomic characterization. The novel species are described as Bullera cylindrica sp. nov. (type strain CB 169T=AS 2.2308T=CBS 9744T), Bullera hubeiensis sp. nov. (type strain HX 19.3T=AS 2.2466T=CBS 9747T) and Bullera nakasei sp. nov. (type strain HX 15.5T=AS 2.2435T=CBS 9746T). These three species, and another eight previously described Bullera species represented by Bullera mrakii, formed a strongly supported distinct clade among the hymenomycetous yeasts in each of the phylogenetic trees drawn from the 26S rDNA D1/D2 domain and the internal transcribed spacer region sequences.


2006 ◽  
Vol 56 (5) ◽  
pp. 1153-1156 ◽  
Author(s):  
Zuo-Wei Wu ◽  
Feng-Yan Bai

Three anamorphic, ascomycetous yeast strains isolated from plant samples collected in Linzhi District, Tibet, China, were revealed as representing two novel species by 26S rRNA gene D1/D2 domain sequence and physiological property comparisons. The names Candida tibetensis sp. nov. and Candida linzhiensis sp. nov. are proposed for these novel species, with XZ 41-6T (=AS 2.3072T=CBS 10298T) and XZ 92-1T (=AS 2.3073T=CBS 10299T) as the respective type strains. D1/D2 sequence analysis showed that C. tibetensis and C. linzhiensis are closely related to Candida caryicola and Candida sequanensis, respectively.


Sign in / Sign up

Export Citation Format

Share Document