Asterotremella meifongana sp. nov. and Asterotremella nantouana sp. nov., two anamorphic basidiomycetous yeasts isolated from soil and mushrooms

Liu, Yiru; Huang, Li-Ying; Young, Suh-Shen; Chang, Chin‐Feng; Lee, Ching-Fu

doi:10.1007/s10482-010-9537-y

Cited by 4 publications

(1 citation statement)

References 15 publications

(24 reference statements)

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“…Strains of C. tropicalis have been reported in fruit, flowers, soil, water, and clinical specimens [36], and this species has already been shown to produce ethanol and, mainly, xylitol from D-xylose [37]–[40]. Strains belonging to the genus Asterotremella, including A. humicola , have been isolated from soil, plants and mushrooms [41]. Candida boidinii has been found with high regularity in the sap of many tree species in geographically distinct regions of the world.…”

Section: Resultsmentioning

confidence: 99%

Diversity and Physiological Characterization of D-Xylose-Fermenting Yeasts Isolated from the Brazilian Amazonian Forest

et al. 2012

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BackgroundThis study is the first to investigate the Brazilian Amazonian Forest to identify new D-xylose-fermenting yeasts that might potentially be used in the production of ethanol from sugarcane bagasse hemicellulosic hydrolysates.Methodology/Principal FindingsA total of 224 yeast strains were isolated from rotting wood samples collected in two Amazonian forest reserve sites. These samples were cultured in yeast nitrogen base (YNB)-D-xylose or YNB-xylan media. Candida tropicalis, Asterotremella humicola, Candida boidinii and Debaryomyces hansenii were the most frequently isolated yeasts. Among D-xylose-fermenting yeasts, six strains of Spathaspora passalidarum, two of Scheffersomyces stipitis, and representatives of five new species were identified. The new species included Candida amazonensis of the Scheffersomyces clade and Spathaspora sp. 1, Spathaspora sp. 2, Spathaspora sp. 3, and Candida sp. 1 of the Spathaspora clade. In fermentation assays using D-xylose (50 g/L) culture medium, S. passalidarum strains showed the highest ethanol yields (0.31 g/g to 0.37 g/g) and productivities (0.62 g/L·h to 0.75 g/L·h). Candida amazonensis exhibited a virtually complete D-xylose consumption and the highest xylitol yields (0.55 g/g to 0.59 g/g), with concentrations up to 25.2 g/L. The new Spathaspora species produced ethanol and/or xylitol in different concentrations as the main fermentation products. In sugarcane bagasse hemicellulosic fermentation assays, S. stipitis UFMG-XMD-15.2 generated the highest ethanol yield (0.34 g/g) and productivity (0.2 g/L·h), while the new species Spathaspora sp. 1 UFMG-XMD-16.2 and Spathaspora sp. 2 UFMG-XMD-23.2 were very good xylitol producers.Conclusions/SignificanceThis study demonstrates the promise of using new D-xylose-fermenting yeast strains from the Brazilian Amazonian Forest for ethanol or xylitol production from sugarcane bagasse hemicellulosic hydrolysates.

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Section: Resultsmentioning

confidence: 99%

Diversity and Physiological Characterization of D-Xylose-Fermenting Yeasts Isolated from the Brazilian Amazonian Forest

et al. 2012

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Yeast Habitats: Different but Global

Péter

Takashima

Čadež

2017

Yeasts in Natural Ecosystems: Ecology

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Five novel species of the anamorphic genus Candida in the Cyberlindnera clade isolated from natural substrates in Taiwan

Chang

Liu

Chen

et al. 2012

Antonie van Leeuwenhoek

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Twelve strains representing five novel yeast species were isolated from natural samples distributed in mountain areas in Taiwan during 2007 and 2009. Sequence analysis of the D1/D2 domain of the large subunit (LSU) rRNA gene revealed that these species are members of the Cyberlindnera clade. These five new species have a greater than 1% difference from their closest relatives in the sequences of the D1/D2 domain of the LSU rRNA gene and were well separated from their closest relatives in terms of physiological characteristics. Moreover, a sexual state could not be found in these five novel yeast species. Therefore, the scientific names of Candida maesa sp. nov. (type strain GJ8L01(T)), Candida takata sp. nov. (type strain EN25S01(T)), Candida taoyuanica sp. nov. (type strain GY15S07(T)), Candida hungchunana sp. nov. (type strain NC3W71(T)) and Candida stauntonica sp. nov. (type strain GY13L05(T)) were proposed to accommodate these yeasts.

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Asterotremella meifongana sp. nov. and Asterotremella nantouana sp. nov., two anamorphic basidiomycetous yeasts isolated from soil and mushrooms

Cited by 4 publications

References 15 publications

Diversity and Physiological Characterization of D-Xylose-Fermenting Yeasts Isolated from the Brazilian Amazonian Forest

Diversity and Physiological Characterization of D-Xylose-Fermenting Yeasts Isolated from the Brazilian Amazonian Forest

Yeast Habitats: Different but Global

Five novel species of the anamorphic genus Candida in the Cyberlindnera clade isolated from natural substrates in Taiwan

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