scholarly journals Candida cellulosicola sp. nov., a xylose-utilizing anamorphic yeast from rotten wood

2012 ◽  
Vol 62 (1) ◽  
pp. 242-245 ◽  
Author(s):  
Xinyan Guo ◽  
Hongkun Zhu ◽  
Feng-Yan Bai
Keyword(s):  
Yeast Species ◽  
Southern China ◽  
Large Subunit ◽  
The Novel ◽  
Internal Transcribed Spacer Region ◽  
Ascomycetous Yeast ◽  
Rotten Wood ◽  
D2 Domain ◽  
Anamorphic Yeast ◽  
Large Subunit Rdna

Two xylose-utilizing yeast strains isolated from rotten wood collected in the rainforest in different mountains of Hainan province, southern China, were studied. Sequence analysis of the large subunit rDNA D1/D2 domain and internal transcribed spacer region revealed that the strains represent a novel anamorphic yeast species, for which the name Candida cellulosicola sp. nov. is proposed; the type strain is HNX16-2T ( = CGMCC 2.3503T = CBS 11952T). Phylogenetically, the novel species was closely related to a xylose-utilizing teleomorphic ascomycetous yeast species Spencermartinsiella europaea in the family Trichomonascaceae, but differed from the latter by 3.0 % mismatches in the D1/D2 domain.

Naumovozyma baii sp. nov., an ascomycetous yeast species isolated from rotten wood in a tropical forest

2012 ◽  
Vol 62 (Pt_12) ◽  
pp. 3095-3098 ◽  
Author(s):  
Wan-Qiu Liu ◽  
Pei-Jie Han ◽  
Jun-Zhi Qiu ◽  
Qi-Ming Wang
Keyword(s):  
Gene Sequence ◽  
Yeast Species ◽  
Morphological Characteristics ◽  
18S Rrna Gene ◽  
Rrna Gene ◽  
Internal Transcribed Spacer Region ◽  
Ascomycetous Yeast ◽  
Rotten Wood ◽  
D2 Domain ◽  
26S Rrna

Two strains isolated from rotten wood were included in the Saccharomyces group based on morphological characteristics. However, rRNA gene sequence analyses (including the 18S rRNA gene, 26S rRNA gene D1/D2 domain and internal transcribed spacer region) indicated that these two strains represent a novel species of Naumovozyma, for which the name Naumovozyma baii sp. nov. is proposed (type strain: BW 22T = CGMCC 2.04520T = CBS 12642T). The MycoBank number of the new species is MB800484.

Candida ecuadorensis sp. nov., an ascomycetous yeast species found in two separate regions of Ecuador

2013 ◽  
Vol 63 (Pt_1) ◽  
pp. 393-397 ◽  
Author(s):  
Stephen A. James ◽  
Enrique Javier Carvajal Barriga ◽  
Patricia Portero Barahona ◽  
Kathryn Cross ◽  
Christopher J. Bond ◽  
...  
Keyword(s):  
Type Strain ◽  
Mangrove Forest ◽  
Yeast Species ◽  
Novel Species ◽  
Large Subunit ◽  
Rrna Gene ◽  
Ascomycetous Yeast ◽  
Rotten Wood ◽  
D2 Domain ◽  
Lsu Rrna Gene

In the course of an on-going study aimed at cataloguing the natural yeast biodiversity found in Ecuador, two strains (CLQCA 13-025 and CLQCA 20-004T) were isolated from samples of cow manure and rotten wood collected in two separate provinces of the country (Orellana and Bolívar). These strains were found to represent a novel yeast species based on the sequences of their D1/D2 domain of the large-subunit (LSU) rRNA gene and their physiological characteristics. Phylogenetic analysis based on LSU D1/D2 sequences revealed this novel species to belong to the Metschnikowia clade and to be most closely related to Candida suratensis, a species recently discovered in a mangrove forest in Thailand. The species name of Candida ecuadorensis sp. nov. is proposed to accommodate these strains, with strain CLQCA 20-004T ( = CBS 12653T = NCYC 3782T) designated as the type strain.

scholarly journals Kazachstania siamensis sp. nov., an ascomycetous yeast species from forest soil in Thailand

2007 ◽  
Vol 57 (2) ◽  
pp. 419-422 ◽  
Author(s):  
Savitree Limtong ◽  
Wichien Yongmanitchai ◽  
Moe Moe Tun ◽  
Hiroko Kawasaki ◽  
Tatsuji Seki
Keyword(s):  
Deciduous Forest ◽  
Yeast Species ◽  
Large Subunit ◽  
The Novel ◽  
Phenotypic Characteristics ◽  
Nucleotide Substitutions ◽  
Ascomycetous Yeast ◽  
Rdna Sequences ◽  
Close Relationship ◽  
Large Subunit Rdna

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).

scholarly journals Kazachstania ichnusensis sp. nov., a diploid homothallic ascomycetous yeast from Sardinian lentisk rhizosphere

2012 ◽  
Vol 62 (Pt_3) ◽  
pp. 722-727 ◽  
Author(s):  
Gianluigi Cardinali ◽  
Livio Antonielli ◽  
Laura Corte ◽  
Luca Roscini ◽  
Ambra Bagnetti ◽  
...  
Keyword(s):  
Type Strain ◽  
Novel Species ◽  
Large Subunit ◽  
Arid Areas ◽  
The Novel ◽  
Ascomycetous Yeast ◽  
Rdna Gene ◽  
D2 Domain ◽  
Large Subunit Rdna ◽  
Semi Arid

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.

Kazachstania aerobia sp. nov., an ascomycetous yeast species from aerobically deteriorating corn silage

2004 ◽  
Vol 54 (6) ◽  
pp. 2431-2435 ◽  
Author(s):  
Hui-Zhong Lu ◽  
Yimin Cai ◽  
Zuo-Wei Wu ◽  
Jian-Hua Jia ◽  
Feng-Yan Bai
Keyword(s):  
Type Strain ◽  
Yeast Species ◽  
Novel Species ◽  
Large Subunit ◽  
Corn Silage ◽  
Rrna Gene ◽  
The Novel ◽  
Ascomycetous Yeast ◽  
D2 Domain ◽  
Large Subunit Rrna

In an investigation of the yeast biota involved in silage deterioration, a considerable number of strains belonging to Saccharomyces and related genera were isolated from aerobically deteriorating corn silage in Tochigi, Japan. Analysis of sequences of the internal transcribed spacer and the large-subunit rRNA gene D1/D2 domain and electrophoretic karyotyping indicated that two of the strains, NS 14T and NS 26, represent a novel species with close phylogenetic relationships to Kazachstania servazzii and Kazachstania unispora. It is proposed that the novel species be named Kazachstania aerobia sp. nov., with NS 14T (=AS 2.2384T=CBS 9918T) as the type strain.

scholarly journals Description of Holtermanniella gen. nov., including Holtermanniella takashimae sp. nov. and four new combinations, and proposal of the order Holtermanniales to accommodate tremellomycetous yeasts of the Holtermannia clade

2011 ◽  
Vol 61 (3) ◽  
pp. 680-689 ◽  
Author(s):  
Michael Wuczkowski ◽  
Volkmar Passoth ◽  
Benedetta Turchetti ◽  
Ann-Christin Andersson ◽  
Matilda Olstorpe ◽  
...  
Keyword(s):  
Type Strain ◽  
Geographical Origin ◽  
Yeast Species ◽  
Novel Species ◽  
Large Subunit ◽  
Intraspecific Variability ◽  
The Novel ◽  
The World ◽  
Anamorphic Yeast ◽  
Large Subunit Rdna

The novel genus Holtermanniella is proposed here to accommodate four Cryptococcus species closely related to Holtermannia corniformis that are included in the Holtermannia clade (Basidiomycota, Agaricomycotina). Thus, four novel combinations are proposed: Holtermanniella nyarrowii comb. nov., Holtermanniella festucosa comb. nov., Holtermanniella mycelialis comb. nov. and Holtermanniella wattica comb. nov. In addition, a novel anamorphic yeast species was studied with 15 isolates obtained from different habitats around the world. Analysis of the sequences of the D1/D2 region of their large subunit rDNA showed that the novel species is placed phylogenetically within the Holtermannia clade of the Tremellomycetes (Agaricomycotina, Basidiomycota). PCR fingerprinting and sequencing of ITS1–5.8S–ITS2 showed genetic intraspecific variability among the strains: three groups were formed, which did not correlate with geographical origin or substrate. This novel species, designated the type species of Holtermanniella gen. nov., is described as Holtermanniella takashimae sp. nov.; the type strain is CBS 11174T (=HB 982T =DBVPG 8012T). The order Holtermanniales ord. nov. is proposed here to include Holtermannia (the type genus) and Holtermanniella.

scholarly journals Spencermartinsiella ligniputridi sp. nov., a yeast species isolated from rotten wood

2012 ◽  
Vol 62 (Pt_11) ◽  
pp. 2799-2804 ◽  
Author(s):  
Dénes Dlauchy ◽  
Ching-Fu Lee ◽  
Gábor Péter
Keyword(s):  
Yeast Species ◽  
Novel Species ◽  
Large Subunit ◽  
Single Species ◽  
Rrna Gene ◽  
The Novel ◽  
Phenotypic Characteristics ◽  
Rotten Wood ◽  
D2 Domain ◽  
Large Subunit Rrna

Four strains of a novel heterothallic yeast species were isolated from rotten wood samples collected at different locations in Hungary. Analysis of sequences of the D1/D2 domain of the large subunit rRNA gene placed the novel species in the genus Spencermartinsiella. The novel species can be distinguished from Spencermartinsiella europaea, the single species of the genus, and from Candida cellulosicola, the only recognized anamorphic species of the Spencermartinsiella clade, on the basis of standard phenotypic characteristics. The relatedness among the four strains of the novel species and two closely related strains representing undescribed yeast species is discussed. The name Spencermartinsiella ligniputridi sp. nov. is proposed to accommodate the four novel strains. The type and isotype strains of Spencermartinsiella ligniputridi sp. nov. are NCAIM Y.01992T ( = CBS 12585T = NRRL Y-48818T) and NCAIM Y.01936I ( = CBS 12586I = NRRL Y-48819I), respectively. Two additional strains are NCAIM Y.01991 and NCAIM Y.01993.

scholarly journals Cryptococcus rajasthanensis sp. nov., an anamorphic yeast species related to Cryptococcus laurentii, isolated from Rajasthan, India

2007 ◽  
Vol 57 (2) ◽  
pp. 414-418 ◽  
Author(s):  
Puja Saluja ◽  
G. S. Prasad
Keyword(s):  
Large Subunit ◽  
Its Region ◽  
Molecular Data ◽  
Lsu Rdna ◽  
Cryptococcus Laurentii ◽  
The Novel ◽  
D2 Domain ◽  
Its Regions ◽  
Anamorphic Yeast ◽  
Physiological Tests

Two novel anamorphic yeast strains (S-15LT and 3-C1) were isolated from the inflorescences of plants collected in two different towns in Rajasthan State, India. Sequencing of the D1/D2 domains of the large-subunit (LSU) rDNA and the internal transcribed spacer (ITS) regions suggested they are strains of the same species. Phenotypic characteristics such as the absence of fermentation, the absence of sexual structures and ballistoconidia, the assimilation of myo-inositol and d-glucuronate, and positive Diazonium blue B and urease reactions indicated that these strains belong to the genus Cryptococcus. The novel strains differed from Cryptococcus laurentii in six physiological tests and differed from other related species in more than six tests. A phylogenetic analysis of the sequences of the D1/D2 domains of the LSU rDNA and the ITS regions placed these strains in the Bulleromyces clade within the order Tremellales, with C. laurentii as their closest described relative. The novel strains showed 1.6 and 7.5 % divergence in the D1/D2 domain of the LSU rDNA and ITS regions, respectively, with respect to C. laurentii. The divergence from other species was more than 3 % for the D1/D2 domain and more than 9 % for the ITS region. On the basis of the phenotypic and molecular data, strains S-15LT and 3-C1 represent a novel species within the genus Cryptococcus, for which the name Cryptococcus rajasthanensis sp. nov. is proposed. The type strain is S-15LT (=MTCC 7075T=CBS 10406T).

scholarly journals Candida amazonensis sp. nov., an ascomycetous yeast isolated from rotting wood in the Amazonian forest

2012 ◽  
Vol 62 (Pt_6) ◽  
pp. 1438-1440 ◽  
Author(s):  
Raquel M. Cadete ◽  
Monaliza A. Melo ◽  
Mariana R. Lopes ◽  
Gilmara M. D. Pereira ◽  
Jerri E. Zilli ◽  
...  
Keyword(s):  
Yeast Species ◽  
Novel Species ◽  
Large Subunit ◽  
Rrna Gene ◽  
Forest Site ◽  
The Novel ◽  
Ascomycetous Yeast ◽  
Amazonian Forest ◽  
Rotting Wood ◽  
Northern Brazil

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).

scholarly journals Candida heliconiae sp. nov., Candida picinguabensis sp. nov. and Candida saopaulonensis sp. nov., three ascomycetous yeasts from Heliconia velloziana (Heliconiaceae)

2006 ◽  
Vol 56 (5) ◽  
pp. 1147-1151 ◽  
Author(s):  
Carla C. C. Ruivo ◽  
Marc-André Lachance ◽  
Carlos A. Rosa ◽  
Maurício Bacci ◽  
Fernando C. Pagnocca
Keyword(s):  
Forest Ecosystem ◽  
Yeast Species ◽  
Large Subunit ◽  
Sequence Divergence ◽  
Eastern Brazil ◽  
D2 Domain ◽  
Large Subunit Rdna ◽  
Ascomycetous Yeasts ◽  
Year 2000 ◽  
Type Strains

Strains belonging to three novel yeast species, Candida heliconiae (four isolates), Candida picinguabensis (three isolates) and Candida saopaulonensis (two isolates), were recovered in the year 2000 from water of flower bracts of Heliconia velloziana L. Emigd. (Heliconiaceae) found in a forest ecosystem site in an Atlantic rainforest of south-eastern Brazil. C. picinguabensis and C. saopaulonensis were nearly identical in morphology and physiology, but sequence divergence in the D1/D2 domain of the large-subunit rDNA indicated that they should be regarded as different species. They belong to the Metschnikowiaceae clade. C. heliconiae had affinities to Pichia mexicana and related species, but was genetically isolated from all currently accepted species in that group. The type strains are C. heliconiae UNESP 00-91C1T (=CBS 10000T=NRRL Y-27813T), C. picinguabensis UNESP 00-89T (=CBS 9999T=NRRL Y-27814T) and C. saopaulonensis UNESP 00-99T (=CBS 10001T=NRRL Y-27815T).

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