scholarly journals Bensingtonia rectispora sp. nov. and Bensingtonia bomiensis sp. nov., ballistoconidium-forming yeast species from Tibetan plant leaves

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.

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.


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.


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.


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 50 (12) ◽  
pp. 1001-1006 ◽  
Author(s):  
Wladyslav I Golubev ◽  
José P Sampaio ◽  
Leonor Alves ◽  
Nikita W Golubev

Five yeast strains belonging to the genus Cryptococcus Vuillemin were isolated from steppe plants and turf collected in the Prioksko-terrasny biosphere reserve (Moscow region, Russia). Sequence analyses of the D1/D2 domains of the 26S rDNA and of the internal transcribed spacer region revealed that these yeast strains and strain CBS 8016 have almost identical sequences and belong to the Holtermannia clade of the Tremellomycetidae (Basidiomycota, Hymenomycetes). A novel species named Cryptococcus festucosus (type strain VKM Y-2930) is proposed to accommodate these strains. Physiological characteristics and mycocin sensitivity patterns distinguishing Cryptococcus festucosus from the other species of this clade are presented.Key words: mycocin sensitivity, rDNA sequencing, Cryptococcus, Holtermannia.


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).


2010 ◽  
Vol 60 (11) ◽  
pp. 2675-2680 ◽  
Author(s):  
Marizeth Groenewald ◽  
Maudy Th. Smith

On the basis of the nucleotide divergence in the internal transcribed spacer (ITS) domain of the rRNA gene and the D1/D2 domain of the 26S rRNA gene, species of the genus Hyphopichia can be divided into different phylogenetic groups. In this study, three distinct phylogenetic clusters as well as a novel species, Hyphopichia pseudoburtonii sp. nov. with type strain CBS 2455T (=JCM 16346T), are introduced. Mating studies indicate that strains belonging to Hyphopichia pseudoburtonii are heterothallic.


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).


2010 ◽  
Vol 60 (9) ◽  
pp. 2251-2256 ◽  
Author(s):  
Diego Libkind ◽  
José Paulo Sampaio ◽  
Maria van Broock

A basidiomycetous yeast, strain CRUB 1032T, which formed salmon-pink colonies, was isolated from glacial meltwater in Patagonia, Argentina. Morphological, physiological and biochemical characterization indicated that this strain belonged to the genus Rhodotorula. Molecular taxonomic analysis based on the 26S rDNA D1/D2 domain and internal transcribed spacer region sequences showed that strain CRUB 1032T represents an undescribed yeast species, for which the name Rhodotorula meli sp. nov. is proposed (type strain is CRUB 1032T=CBS 10797T=JCM 15319T). Phylogenetic analysis showed that Rhodotorula lamellibrachii was the closest known species, which, together with R. meli, formed a separate cluster related to the Sakaguchia clade within the Cystobasidiomycetes. Additional Patagonian yeast isolates of the class Cystobasidiomycetes are also investigated in the present work.


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.


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