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Dolpatcha S, Phong HX, Thanonkeo S, Klanrit P, Yamada M, Thanonkeo P. Adaptive laboratory evolution under acetic acid stress enhances the multistress tolerance and ethanol production efficiency of Pichia kudriavzevii from lignocellulosic biomass. Sci Rep 2023; 13:21000. [PMID: 38017261 PMCID: PMC10684600 DOI: 10.1038/s41598-023-48408-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 11/26/2023] [Indexed: 11/30/2023] Open
Abstract
Second-generation bioethanol production using lignocellulosic biomass as feedstock requires a highly efficient multistress-tolerant yeast. This study aimed to develop a robust yeast strain of P. kudriavzevii via the adaptive laboratory evolution (ALE) technique. The parental strain of P. kudriavzevii was subjected to repetitive long-term cultivation in medium supplemented with a gradually increasing concentration of acetic acid, the major weak acid liberated during the lignocellulosic pretreatment process. Three evolved P. kudriavzevii strains, namely, PkAC-7, PkAC-8, and PkAC-9, obtained in this study exhibited significantly higher resistance toward multiple stressors, including heat, ethanol, osmotic stress, acetic acid, formic acid, furfural, 5-(hydroxymethyl) furfural (5-HMF), and vanillin. The fermentation efficiency of the evolved strains was also improved, yielding a higher ethanol concentration, productivity, and yield than the parental strain, using undetoxified sugarcane bagasse hydrolysate as feedstock. These findings provide evidence that ALE is a practical approach for increasing the multistress tolerance of P. kudriavzevii for stable and efficient second-generation bioethanol production from lignocellulosic biomass.
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Affiliation(s)
- Sureeporn Dolpatcha
- Department of Biotechnology, Faculty of Technology, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Huynh Xuan Phong
- Department of Microbial Biotechnology, Institute of Food and Biotechnology, Can Tho University, Can Tho, 900000, Vietnam
| | - Sudarat Thanonkeo
- Walai Rukhavej Botanical Research Institute, Mahasarakham University, Maha Sarakham, 44150, Thailand
| | - Preekamol Klanrit
- Department of Biotechnology, Faculty of Technology, Khon Kaen University, Khon Kaen, 40002, Thailand
- Fermentation Research Center for Value Added Agricultural Products (FerVAAPs), Faculty of Technology, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Mamoru Yamada
- Department of Biological Chemistry, Faculty of Agriculture, Yamaguchi University, Yamaguchi, 753-8515, Japan
- Research Center for Thermotolerant Microbial Resources, Yamaguchi University, Yamaguchi, 753-8515, Japan
| | - Pornthap Thanonkeo
- Department of Biotechnology, Faculty of Technology, Khon Kaen University, Khon Kaen, 40002, Thailand.
- Fermentation Research Center for Value Added Agricultural Products (FerVAAPs), Faculty of Technology, Khon Kaen University, Khon Kaen, 40002, Thailand.
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Larval gut microbiome of Pelidnota luridipes (Coleoptera: Scarabaeidae): high bacterial diversity, different metabolic profiles on gut chambers and species with probiotic potential. World J Microbiol Biotechnol 2022; 38:210. [PMID: 36050590 DOI: 10.1007/s11274-022-03387-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 08/11/2022] [Indexed: 10/14/2022]
Abstract
Pelidnota luridipes Blanchard (1850) is a tropical beetle of the family Scarabaeidae, whose larvae live on wood without parental care. Microbiota of mid- and hindgut of larvae was evaluated by culture-dependent and independent methods, and the results show a diverse microbiota, with most species of bacteria and fungi shared between midgut and hindgut. We isolated 272 bacterial and 29 yeast isolates, identified in 57 and 7 species, respectively, while using metabarcoding, we accessed 1,481 and 267 OTUs of bacteria and fungi, respectively. The composition and abundance of bacteria and fungi differed between mid- and hindgut, with a tendency for higher richness and diversity of yeasts in the midgut, and bacteria on the hindgut. Some taxa are abundant in the intestine of P. luridipes larvae, such as Firmicutes, Bacteroidetes, Proteobacteria, and Actinobacteria; as well as Saccharomycetales and Trichosporonales yeasts. Mid- and hindgut metabolic profiles differ (e.g. biosynthesis of amino acids, cofactors, and lipopolysaccharides) with higher functional diversity in the hindgut. Isolates have different functional traits such as secretion of hydrolytic enzymes and antibiosis against pathogens. Apiotrichum siamense L29A and Bacillus sp. BL17B protected larvae of the moth Galleria mellonella, against infection by the pathogens Listeria monocytogenes ATCC19111 and Pseudomonas aeruginosa ATCC 9027. This is the first work with the larval microbiome of a Rutelini beetle, demonstrating its diversity and potential in prospecting microbial products as probiotics. The functional role of microbiota for the nutrition and adaptability of P. luridipes larvae needs to be evaluated in the future.
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Cortivo PRD, Aydos LF, Hickert LR, Rosa CA, Hector RE, Mertens JA, Ayub MAZ. Performance of xylose-fermenting yeasts in oat and soybean hulls hydrolysate and improvement of ethanol production using immobilized cell systems. Biotechnol Lett 2021; 43:2011-2026. [PMID: 34480641 DOI: 10.1007/s10529-021-03182-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 08/30/2021] [Indexed: 11/25/2022]
Abstract
We investigated the fermentation of a mixture of oat and soybean hulls (1:1) subjected to acid (AH) or enzymatic (EH) hydrolyses, with both showing high osmotic pressures (> 1200 Osm kg-1) for the production of ethanol. Yeasts of genera Spathaspora, Scheffersomyces, Sugiymaella, and Candida, most of them biodiverse Brazilian isolates and previously untested in bioprocesses, were cultivated in these hydrolysates. Spathaspora passalidarum UFMG-CM-469 showed the best ethanol production kinetics in suspended cells cultures in acid hydrolysate, under microaerobic and anaerobic conditions. This strain was immobilized in LentiKats® (polyvinyl alcohol) and cultured in AH and EH. Supplementation of hydrolysates with crude yeast extract and peptone was also performed. The highest ethanol production was obtained using hydrolysates supplemented with crude yeast extract (AH-CYE and EH-CYE) showing yields of 0.40 and 0.44 g g-1, and productivities of 0.39 and 0.29 g (L h)-1, respectively. The reuse of the immobilized cells was tested in sequential fermentations of AH-CYE, EH-CYE, and a mixture of acid and enzymatic hydrolysates (AEH-CYE) operated under batch fluidized bed, with ethanol yields ranging from 0.31 to 0.40 g g-1 and productivities from 0.14 to 0.23 g (L h)-1. These results warrant further research using Spathaspora yeasts for second-generation ethanol production.
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Affiliation(s)
- Paulo Roberto Dall Cortivo
- Biotechnology & Biochemical Engineering Laboratory (BiotecLab), Federal University of Rio Grande do Sul, Av. Bento Gonçalves, 9500, PO Box 15090, Porto Alegre, RS, 91501-970, Brazil
| | - Luiza Fichtner Aydos
- Biotechnology & Biochemical Engineering Laboratory (BiotecLab), Federal University of Rio Grande do Sul, Av. Bento Gonçalves, 9500, PO Box 15090, Porto Alegre, RS, 91501-970, Brazil
| | - Lilian Raquel Hickert
- State University of Rio Grande do Sul, Av. Bento Gonçalves, 8855, Porto Alegre, RS, 91540-000, Brazil
| | - Carlos Augusto Rosa
- Department of Microbiology, ICB, C.P. 486, State University of Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Ronald E Hector
- Bioenergy Research Unit, USDA, Agricultural Research Service, National Center for Agricultural Utilization Research, 1815 North University Street, Peoria, IL, 61604, USA
| | - Jeffrey A Mertens
- Bioenergy Research Unit, USDA, Agricultural Research Service, National Center for Agricultural Utilization Research, 1815 North University Street, Peoria, IL, 61604, USA
| | - Marco Antônio Záchia Ayub
- Biotechnology & Biochemical Engineering Laboratory (BiotecLab), Federal University of Rio Grande do Sul, Av. Bento Gonçalves, 9500, PO Box 15090, Porto Alegre, RS, 91501-970, Brazil.
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4
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Lv SL, Chai CY, Wang Y, Yan ZL, Hui FL. Five new additions to the genus Spathaspora (Saccharomycetales, Debaryomycetaceae) from southwest China. MycoKeys 2020; 75:31-49. [PMID: 33223920 PMCID: PMC7669824 DOI: 10.3897/mycokeys.75.57192] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 10/25/2020] [Indexed: 12/28/2022] Open
Abstract
Spathaspora is an important genus of d-xylose-fermenting yeasts that are poorly studied in China. During recent yeast collections in Yunnan Province in China, 13 isolates of Spathaspora were obtained from rotting wood and all represent undescribed taxa. Based on morphological and phylogenetic analyses (ITS and nuc 28S), five new species are proposed: Spathaspora elongata, Sp. mengyangensis, Sp. jiuxiensis, Sp. parajiuxiensis and Sp. rosae. Our results indicate a high species diversity of Spathaspora waiting to be discovered in rotting wood from tropical and subtropical southwest China. In addition, the two Candida species, C. jeffriesii and C. materiae, which are members of the Spathaspora clade based on phylogeny, are transferred to Spathaspora as new combinations.
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Affiliation(s)
- Shi-Long Lv
- School of Life Science and Technology, Nanyang Normal University, Nanyang 473061, China Nanyang Normal University Nanyang China
| | - Chun-Yue Chai
- School of Life Science and Technology, Nanyang Normal University, Nanyang 473061, China Nanyang Normal University Nanyang China
| | - Yun Wang
- School of Life Science and Technology, Nanyang Normal University, Nanyang 473061, China Nanyang Normal University Nanyang China
| | - Zhen-Li Yan
- State Key Laboratory of Motor Vehicle Biofuel Technology, Henan Tianguan Enterprise Group Co. Ltd., Nanyang 473000, China Henan Tianguan Enterprise Group Nanyang China
| | - Feng-Li Hui
- School of Life Science and Technology, Nanyang Normal University, Nanyang 473061, China Nanyang Normal University Nanyang China
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Combining Xylose Reductase from Spathaspora arborariae with Xylitol Dehydrogenase from Spathaspora passalidarum to Promote Xylose Consumption and Fermentation into Xylitol by Saccharomyces cerevisiae. FERMENTATION-BASEL 2020. [DOI: 10.3390/fermentation6030072] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In recent years, many novel xylose-fermenting yeasts belonging to the new genus Spathaspora have been isolated from the gut of wood-feeding insects and/or wood-decaying substrates. We have cloned and expressed, in Saccharomyces cerevisiae, a Spathaspora arborariae xylose reductase gene (SaXYL1) that accepts both NADH and NADPH as co-substrates, as well as a Spathaspora passalidarum NADPH-dependent xylose reductase (SpXYL1.1 gene) and the SpXYL2.2 gene encoding for a NAD+-dependent xylitol dehydrogenase. These enzymes were co-expressed in a S. cerevisiae strain over-expressing the native XKS1 gene encoding xylulokinase, as well as being deleted in the alkaline phosphatase encoded by the PHO13 gene. The S. cerevisiae strains expressing the Spathaspora enzymes consumed xylose, and xylitol was the major fermentation product. Higher specific growth rates, xylose consumption and xylitol volumetric productivities were obtained by the co-expression of the SaXYL1 and SpXYL2.2 genes, when compared with the co-expression of the NADPH-dependent SpXYL1.1 xylose reductase. During glucose-xylose co-fermentation by the strain with co-expression of the SaXYL1 and SpXYL2.2 genes, both ethanol and xylitol were produced efficiently. Our results open up the possibility of using the advantageous Saccharomyces yeasts for xylitol production, a commodity with wide commercial applications in pharmaceuticals, nutraceuticals, food and beverage industries.
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Morais CG, Sena LMF, Lopes MR, Santos ARO, Barros KO, Alves CR, Uetanabaro APT, Lachance MA, Rosa CA. Production of ethanol and xylanolytic enzymes by yeasts inhabiting rotting wood isolated in sugarcane bagasse hydrolysate. Fungal Biol 2020; 124:639-647. [PMID: 32540187 DOI: 10.1016/j.funbio.2020.03.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 03/12/2020] [Accepted: 03/17/2020] [Indexed: 01/23/2023]
Abstract
Yeasts associated with rotting wood from four Atlantic Rain forest sites in Brazil were investigated using a culture medium based on sugarcane bagasse hydrolysate. A total of 330 yeast strains were isolated. Pichia manshurica, Candida pseudolambica, and Wickerhamomyces sp. 3 were the most frequently isolated species. Fourteen novel species were obtained in this study. All isolates were tested for their ability to ferment d-xylose and to produce xylanases. In the fermentation assays using d-xylose (30 g L-1), the main ethanol producers were Scheffersomyces stipitis (14.08 g L-1), Scheffersomyces sp. (7.94 g L-1) and Spathaspora boniae (7.16 g L-1). Sc. stipitis showed the highest ethanol yield (0.42 g g-1) and the highest productivity (0.39 g L-1h-1). The fermentation results using hemicellulosic hydrolysate showed that Sc. stipitis was the best ethanol producer, achieving a yield of 0.32 g g-1, while Sp. boniae and Scheffersomyces sp. were excellent xylitol producers. The best xylanase-producing yeasts at 50 °C belonged to the species Su. xylanicola (0.487 U mg-1) and Saitozyma podzolica (0.384 U mg-1). The results showed that rotting wood collected from the Atlantic Rainforest is a valuable source of yeasts able to grow in sugarcane bagasse hydrolysate, including species with promising biotechnological properties.
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Affiliation(s)
- Camila G Morais
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Letícia M F Sena
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Mariana R Lopes
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Ana Raquel O Santos
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Katharina O Barros
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Camila R Alves
- Programa de Pós-Graduação em Botânica, Laboratório de Micologia, Departamento de Botânica, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 91501-970, Brazil
| | - Ana Paula T Uetanabaro
- Departamento de Ciências Biológicas e Agroindústria, Universidade Estadual Santa Cruz, Ilhéus, BA 45662-900, Brazil
| | - Marc-André Lachance
- Department of Biology, University of Western Ontario, London, ON N6A 5B7, Canada
| | - Carlos A Rosa
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil.
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7
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The Xylose Metabolizing Yeast Spathaspora passalidarum is a Promising Genetic Treasure for Improving Bioethanol Production. FERMENTATION-BASEL 2020. [DOI: 10.3390/fermentation6010033] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Currently, the fermentation technology for recycling agriculture waste for generation of alternative renewable biofuels is getting more and more attention because of the environmental merits of biofuels for decreasing the rapid rise of greenhouse gas effects compared to petrochemical, keeping in mind the increase of petrol cost and the exhaustion of limited petroleum resources. One of widely used biofuels is bioethanol, and the use of yeasts for commercial fermentation of cellulosic and hemicellulosic agricultural biomasses is one of the growing biotechnological trends for bioethanol production. Effective fermentation and assimilation of xylose, the major pentose sugar element of plant cell walls and the second most abundant carbohydrate, is a bottleneck step towards a robust biofuel production from agricultural waste materials. Hence, several attempts were implemented to engineer the conventional Saccharomyces cerevisiae yeast to transport and ferment xylose because naturally it does not use xylose, using genetic materials of Pichia stipitis, the pioneer native xylose fermenting yeast. Recently, the nonconventional yeast Spathaspora passalidarum appeared as a founder member of a new small group of yeasts that, like Pichia stipitis, can utilize and ferment xylose. Therefore, the understanding of the molecular mechanisms regulating the xylose assimilation in such pentose fermenting yeasts will enable us to eliminate the obstacles in the biofuels pipeline, and to develop industrial strains by means of genetic engineering to increase the availability of renewable biofuel products from agricultural biomass. In this review, we will highlight the recent advances in the field of native xylose metabolizing yeasts, with special emphasis on S. passalidarum for improving bioethanol production.
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Nurcholis M, Lertwattanasakul N, Rodrussamee N, Kosaka T, Murata M, Yamada M. Integration of comprehensive data and biotechnological tools for industrial applications of Kluyveromyces marxianus. Appl Microbiol Biotechnol 2019; 104:475-488. [PMID: 31781815 DOI: 10.1007/s00253-019-10224-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 10/21/2019] [Accepted: 10/27/2019] [Indexed: 12/17/2022]
Abstract
Among the so-called non-conventional yeasts, Kluyveromyces marxianus has extremely potent traits that are suitable for industrial applications. Indeed, it has been used for the production of various enzymes, chemicals, and macromolecules in addition to utilization of cell biomass as nutritional materials, feed and probiotics. The yeast is expected to be an efficient ethanol producer with advantages over Saccharomyces cerevisiae in terms of high growth rate, thermotolerance and a wide sugar assimilation spectrum. Results of comprehensive analyses of its genome and transcriptome may accelerate studies for applications of the yeast and may further increase its potential by combination with recent biotechnological tools including the CRISPR/Cas9 system. We thus review published studies by merging with information obtained from comprehensive data including genomic and transcriptomic data, which would be useful for future applications of K. marxianus.
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Affiliation(s)
- Mochamad Nurcholis
- Graduate School of Medicine, Yamaguchi University, Ube, 755-8505, Japan.,Department of Food Science and Technology, Faculty of Agricultural Technology, Brawijaya University, Malang, 65145, Indonesia
| | - Noppon Lertwattanasakul
- Department of Microbiology, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand
| | - Nadchanok Rodrussamee
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand.,Center of Excellence in Bioresources for Agriculture, Industry and Medicine, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Tomoyuki Kosaka
- Department of Biological Chemistry, Faculty of Agriculture, Yamaguchi University, Yamaguchi, 753-8515, Japan.,Graduate School of Science and Technology for Innovation, Yamaguchi University, Yamaguchi, 753-8515, Japan.,Research Center for Thermotolerant Microbial Resources, Yamaguchi University, Yamaguchi, 753-8515, Japan
| | - Masayuki Murata
- Department of Biological Chemistry, Faculty of Agriculture, Yamaguchi University, Yamaguchi, 753-8515, Japan.,Graduate School of Science and Technology for Innovation, Yamaguchi University, Yamaguchi, 753-8515, Japan
| | - Mamoru Yamada
- Graduate School of Medicine, Yamaguchi University, Ube, 755-8505, Japan. .,Department of Biological Chemistry, Faculty of Agriculture, Yamaguchi University, Yamaguchi, 753-8515, Japan. .,Graduate School of Science and Technology for Innovation, Yamaguchi University, Yamaguchi, 753-8515, Japan. .,Research Center for Thermotolerant Microbial Resources, Yamaguchi University, Yamaguchi, 753-8515, Japan.
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Trichez D, Steindorff AS, Soares CEVF, Formighieri EF, Almeida JRM. Physiological and comparative genomic analysis of new isolated yeasts Spathaspora sp. JA1 and Meyerozyma caribbica JA9 reveal insights into xylitol production. FEMS Yeast Res 2019; 19:5480466. [DOI: 10.1093/femsyr/foz034] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 04/25/2019] [Indexed: 12/30/2022] Open
Abstract
ABSTRACT
Xylitol is a five-carbon polyol of economic interest that can be produced by microbial xylose reduction from renewable resources. The current study sought to investigate the potential of two yeast strains, isolated from Brazilian Cerrado biome, in the production of xylitol as well as the genomic characteristics that may impact this process. Xylose conversion capacity by the new isolates Spathaspora sp. JA1 and Meyerozyma caribbica JA9 was evaluated and compared with control strains on xylose and sugarcane biomass hydrolysate. Among the evaluated strains, Spathaspora sp. JA1 was the strongest xylitol producer, reaching product yield and productivity as high as 0.74 g/g and 0.20 g/(L.h) on xylose, and 0.58 g/g and 0.44 g/(L.h) on non-detoxified hydrolysate. Genome sequences of Spathaspora sp. JA1 and M. caribbica JA9 were obtained and annotated. Comparative genomic analysis revealed that the predicted xylose metabolic pathway is conserved among the xylitol-producing yeasts Spathaspora sp. JA1, M. caribbica JA9 and Meyerozyma guilliermondii, but not in Spathaspora passalidarum, an efficient ethanol-producing yeast. Xylitol-producing yeasts showed strictly NADPH-dependent xylose reductase and NAD+-dependent xylitol-dehydrogenase activities. This imbalance of cofactors favors the high xylitol yield shown by Spathaspora sp. JA1, which is similar to the most efficient xylitol producers described so far.
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Affiliation(s)
- Débora Trichez
- Embrapa Agroenergia. Parque Estação Biológica, PqEB – W3 Norte Final, Postal code 70.770–901, Brasília-DF, Brazil
| | - Andrei S Steindorff
- Embrapa Agroenergia. Parque Estação Biológica, PqEB – W3 Norte Final, Postal code 70.770–901, Brasília-DF, Brazil
| | - Carlos E V F Soares
- Embrapa Agroenergia. Parque Estação Biológica, PqEB – W3 Norte Final, Postal code 70.770–901, Brasília-DF, Brazil
- Graduate Program in Chemical and Biological Technologies, Institute of Chemistry, University of Brasília, Campus Darcy Ribeiro, Postal code 70.910-900, Brasília-DF, Brazil
| | - Eduardo F Formighieri
- Embrapa Agroenergia. Parque Estação Biológica, PqEB – W3 Norte Final, Postal code 70.770–901, Brasília-DF, Brazil
| | - João R M Almeida
- Embrapa Agroenergia. Parque Estação Biológica, PqEB – W3 Norte Final, Postal code 70.770–901, Brasília-DF, Brazil
- Graduate Program in Chemical and Biological Technologies, Institute of Chemistry, University of Brasília, Campus Darcy Ribeiro, Postal code 70.910-900, Brasília-DF, Brazil
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de Fátima Rodrigues de Souza R, Dutra ED, Leite FCB, Cadete RM, Rosa CA, Stambuk BU, Stamford TLM, de Morais MA. Production of ethanol fuel from enzyme-treated sugarcane bagasse hydrolysate using d-xylose-fermenting wild yeast isolated from Brazilian biomes. 3 Biotech 2018; 8:312. [PMID: 30023144 DOI: 10.1007/s13205-018-1340-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Accepted: 07/06/2018] [Indexed: 11/28/2022] Open
Abstract
In this study, we evaluated the potential of yeasts isolated from Amazon to produce second-generation ethanol from sugarcane bagasse delignified with alkaline hydrogen peroxide and hydrolysed with commercial enzyme preparation. The best efficiency savings in glucose and release of xylose were determined by considering the solids and enzyme loads. Furthermore, we selected Spathaspora passalidarum UFMG-CM-Y473 strain with the best fermentative parameters. Fermentations used bagasse hydrolysate without any nutritional supplementation, a significant difference from previous studies, which is closer to industrial conditions. Ethanol yield of 0.32 g/g and ethanol productivity of 0.34 g/L h were achieved after the consumption of 78% of the sugar. This hydrolysis/fermentation technology package could represent the input of an additional 3180 L of ethanol per hectare in areas of average sugarcane productivity such as 60 ton/ha. Thus, we concluded that Sp. passalidarum UFMG-CM-Y473 has a clear potential for the production of second-generation ethanol from delignified and enzyme-hydrolysed bagasse.
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Affiliation(s)
| | | | | | - Raquel Miranda Cadete
- 6Department of Microbiology, Federal University of Minas Gerais, Belo Horizonte, 31270-901 Brazil
| | - Carlos Augusto Rosa
- 6Department of Microbiology, Federal University of Minas Gerais, Belo Horizonte, 31270-901 Brazil
| | - Boris Ugarte Stambuk
- 7Department of Biochemistry, Federal University of Santa Catarina, Florianópolis, 88040-970 Brazil
| | | | - Marcos Antônio de Morais
- 1Department of Genetics, Federal University of Pernambuco, Av. Moraes Rego, 1235, Cidade Universitária, Recife, PE 50760-901 Brazil
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11
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Su YK, Willis LB, Rehmann L, Smith DR, Jeffries TW. Spathaspora passalidarum selected for resistance to AFEX hydrolysate shows decreased cell yield. FEMS Yeast Res 2018; 18:5042277. [DOI: 10.1093/femsyr/foy011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 06/20/2018] [Indexed: 12/15/2022] Open
Affiliation(s)
- Yi-Kai Su
- Department of Biological Systems Engineering, University of Wisconsin, Madison, WI 53706, USA
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin, Madison, WI 53705, USA
- Forest Products Laboratory, USDA Forest Service, Madison, WI, 53726, USA
- Department of Chemical and Biochemical Engineering, University of Western Ontario, London, ON, N6A 3K, Canada
| | - Laura B Willis
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin, Madison, WI 53705, USA
- Forest Products Laboratory, USDA Forest Service, Madison, WI, 53726, USA
- Department of Bacteriology, University of Madison, WI, 53705, USA
| | - Lars Rehmann
- Department of Chemical and Biochemical Engineering, University of Western Ontario, London, ON, N6A 3K, Canada
| | - David R Smith
- Department of Biology, University of Western Ontario, London, ON, N6A 3K7, Canada
| | - Thomas W Jeffries
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin, Madison, WI 53705, USA
- Forest Products Laboratory, USDA Forest Service, Madison, WI, 53726, USA
- Department of Bacteriology, University of Madison, WI, 53705, USA
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12
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Spathaspora piracicabensis f. a., sp. nov., a d-xylose-fermenting yeast species isolated from rotting wood in Brazil. Antonie van Leeuwenhoek 2017; 111:525-531. [DOI: 10.1007/s10482-017-0974-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 10/31/2017] [Indexed: 10/18/2022]
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13
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Cadete RM, Rosa CA. The yeasts of the genus Spathaspora
: potential candidates for second-generation biofuel production. Yeast 2017; 35:191-199. [DOI: 10.1002/yea.3279] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 07/26/2017] [Accepted: 08/16/2017] [Indexed: 11/08/2022] Open
Affiliation(s)
- Raquel M. Cadete
- Departamento de Microbiologia, ICB, C.P. 486; Universidade Federal de Minas Gerais; Belo Horizonte MG 31270-901 Brazil
| | - Carlos A. Rosa
- Departamento de Microbiologia, ICB, C.P. 486; Universidade Federal de Minas Gerais; Belo Horizonte MG 31270-901 Brazil
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Morais CG, Batista TM, Kominek J, Borelli BM, Furtado C, Moreira RG, Franco GR, Rosa LH, Fonseca C, Hittinger CT, Lachance MA, Rosa CA. Spathaspora boniae sp. nov., a D-xylose-fermenting species in the Candida albicans/Lodderomyces clade. Int J Syst Evol Microbiol 2017; 67:3798-3805. [DOI: 10.1099/ijsem.0.002186] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Camila G. Morais
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Thiago M. Batista
- Departamento de Bioquímica e Imunologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Jacek Kominek
- Laboratory of Genetics, Genome Center of Wisconsin, DOE Great Lakes Bioenergy Research Center, Wisconsin Energy Institute, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Beatriz M. Borelli
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | | | - Rennan G. Moreira
- Laboratorio Multiusuário de Genômica, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Gloria R. Franco
- Departamento de Bioquímica e Imunologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Luiz H. Rosa
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - César Fonseca
- Section for Sustainable Biotechnology, Aalborg University Copenhagen, A. C. Meyers Vænge 15, 2450 Copenhagen SV, Denmark
| | - Chris T. Hittinger
- Laboratory of Genetics, Genome Center of Wisconsin, DOE Great Lakes Bioenergy Research Center, Wisconsin Energy Institute, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Marc-André Lachance
- Department of Biology, University of Western Ontario, N6A 5B7, London, Ontario, Canada
| | - Carlos A. Rosa
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
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Comparative assessment of fermentative capacity of different xylose-consuming yeasts. Microb Cell Fact 2017; 16:153. [PMID: 28903764 PMCID: PMC5598047 DOI: 10.1186/s12934-017-0766-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 09/07/2017] [Indexed: 12/03/2022] Open
Abstract
Background Understanding the effects of oxygen levels on yeast xylose metabolism would benefit ethanol production. In this work, xylose fermentative capacity of Scheffersomyces stipitis, Spathaspora passalidarum, Spathaspora arborariae and Candida tenuis was systematically compared under aerobic, oxygen-limited and anaerobic conditions. Results Fermentative performances of the four yeasts were greatly influenced by oxygen availability. S. stipitis and S. passalidarum showed the highest ethanol yields (above 0.44 g g−1) under oxygen limitation. However, S. passalidarum produced 1.5 times more ethanol than S. stipitis under anaerobiosis. While C. tenuis showed the lowest xylose consumption rate and incapacity to produce ethanol, S. arborariae showed an intermediate fermentative performance among the yeasts. NAD(P)H xylose reductase (XR) activity in crude cell extracts correlated with xylose consumption rates and ethanol production. Conclusions Overall, the present work demonstrates that the availability of oxygen influences the production of ethanol by yeasts and indicates that the NADH-dependent XR activity is a limiting step on the xylose metabolism. S. stipitis and S. passalidarum have the greatest potential for ethanol production from xylose. Both yeasts showed similar ethanol yields near theoretical under oxygen-limited condition. Besides that, S. passalidarum showed the best xylose consumption and ethanol production under anaerobiosis.
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16
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Cadete R, Melo-Cheab M, Dussán K, Rodrigues R, da Silva S, Gomes F, Rosa C. Production of bioethanol in sugarcane bagasse hemicellulosic hydrolysate byScheffersomyces parashehatae,Scheffersomyces illinoinensisandSpathaspora arborariaeisolated from Brazilian ecosystems. J Appl Microbiol 2017; 123:1203-1213. [DOI: 10.1111/jam.13559] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 07/29/2017] [Accepted: 08/07/2017] [Indexed: 11/29/2022]
Affiliation(s)
- R.M. Cadete
- Departamento de Microbiologia; Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Belo Horizonte MG Brazil
- Departamento de Biotecnologia; Escola de Engenharia de Lorena; Universidade de São Paulo; Lorena SP Brazil
| | - M.A. Melo-Cheab
- Departamento de Microbiologia; Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Belo Horizonte MG Brazil
| | - K.J. Dussán
- Departamento de Biotecnologia; Escola de Engenharia de Lorena; Universidade de São Paulo; Lorena SP Brazil
- Departamento de Bioquímica e Química Tecnológica; Instituto de Química; Universidade Estadual Paulista; Araraquara SP Brazil
| | - R.C.L.B. Rodrigues
- Departamento de Biotecnologia; Escola de Engenharia de Lorena; Universidade de São Paulo; Lorena SP Brazil
| | - S.S. da Silva
- Departamento de Biotecnologia; Escola de Engenharia de Lorena; Universidade de São Paulo; Lorena SP Brazil
| | - F.C.O. Gomes
- Departamento de Química; Centro Federal de Educação Tecnológica de Minas Gerais; Belo Horizonte MG Brazil
| | - C.A. Rosa
- Departamento de Microbiologia; Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Belo Horizonte MG Brazil
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Draft Genome Sequence of the d-Xylose-Fermenting Yeast Spathaspora xylofermentans UFMG-HMD23.3. GENOME ANNOUNCEMENTS 2017; 5:5/33/e00815-17. [PMID: 28818907 PMCID: PMC5604780 DOI: 10.1128/genomea.00815-17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Here, we report the draft genome sequence of the yeast Spathaspora xylofermentans UFMG-HMD23.3 (=CBS 12681), a d-xylose-fermenting yeast isolated from the Amazonian forest. The genome consists of 298 contigs, with a total size of 15.1 Mb, including the mitochondrial genome, and 5,948 predicted genes.
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18
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Zheng J, Liu KF, Liu XJ, Zhang L, Hui FL. Deakozyma yunnanensis sp. nov., a novel yeast species isolated from rotten wood. Int J Syst Evol Microbiol 2017; 67:2436-2439. [DOI: 10.1099/ijsem.0.001978] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Jun Zheng
- School of Life Science and Technology, Nanyang Normal University, Nanyang 473061, PR China
| | - Kai-Fang Liu
- School of Life Science and Technology, Nanyang Normal University, Nanyang 473061, PR China
| | - Xiao-Jing Liu
- School of Life Science and Technology, Nanyang Normal University, Nanyang 473061, PR China
| | - Lin Zhang
- School of Life Science and Technology, Nanyang Normal University, Nanyang 473061, PR China
| | - Feng-Li Hui
- School of Life Science and Technology, Nanyang Normal University, Nanyang 473061, PR China
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D-Xylose fermentation, xylitol production and xylanase activities by seven new species of Sugiyamaella. Antonie van Leeuwenhoek 2016; 110:53-67. [PMID: 27688209 DOI: 10.1007/s10482-016-0775-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 09/23/2016] [Indexed: 10/20/2022]
Abstract
Sixteen yeast isolates identified as belonging to the genus Sugiyamaella were studied in relation to D-xylose fermentation, xylitol production, and xylanase activities. The yeasts were recovered from rotting wood and sugarcane bagasse samples in different Brazilian regions. Sequence analyses of the internal transcribed spacer (ITS) region and the D1/D2 domains of large subunit rRNA gene showed that these isolates belong to seven new species. The species are described here as Sugiyamaella ayubii f.a., sp. nov. (UFMG-CM-Y607T = CBS 14108T), Sugiyamaella bahiana f.a., sp. nov. (UFMG-CM-Y304T = CBS 13474T), Sugiyamaella bonitensis f.a., sp. nov. (UFMG-CM-Y608T = CBS 14270T), Sugiyamaella carassensis f.a., sp. nov. (UFMG-CM-Y606T = CBS 14107T), Sugiyamaella ligni f.a., sp. nov. (UFMG-CM-Y295T = CBS 13482T), Sugiyamaella valenteae f.a., sp. nov. (UFMG-CM-Y609T = CBS 14109T) and Sugiyamaella xylolytica f.a., sp. nov. (UFMG-CM-Y348T = CBS 13493T). Strains of the described species S. boreocaroliniensis, S. lignohabitans, S. novakii and S. xylanicola, isolated from rotting wood of Brazilian ecosystems, were also compared for traits relevant to xylose metabolism. S. valenteae sp. nov., S. xylolytica sp. nov., S. bahiana sp. nov., S. bonitensis sp. nov., S. boreocarolinensis, S. lignohabitans and S. xylanicola were able to ferment D-xylose to ethanol. Xylitol production was observed for all Sugiyamaella species studied, except for S. ayubii sp. nov. All species studied showed xylanolytic activity, with S. xylanicola, S. lignohabitans and S. valenteae sp. nov. having the highest values. Our results suggest these Sugiyamaella species have good potential for biotechnological applications.
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20
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Wang Y, Ren YC, Zhang ZT, Ke T, Hui FL. Spathaspora allomyrinae sp. nov., a d-xylose-fermenting yeast species isolated from a scarabeid beetle Allomyrina dichotoma. Int J Syst Evol Microbiol 2016; 66:2008-2012. [DOI: 10.1099/ijsem.0.000979] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Yun Wang
- School of Life Science and Technology, Nanyang Normal University,Nanyang 473061, PRChina
| | - Yong-Cheng Ren
- School of Life Science and Technology, Nanyang Normal University,Nanyang 473061, PRChina
| | - Zheng-Tian Zhang
- School of Life Science and Technology, Nanyang Normal University,Nanyang 473061, PRChina
| | - Tao Ke
- School of Life Science and Technology, Nanyang Normal University,Nanyang 473061, PRChina
| | - Feng-Li Hui
- School of Life Science and Technology, Nanyang Normal University,Nanyang 473061, PRChina
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Lopes MR, Morais CG, Kominek J, Cadete RM, Soares MA, Uetanabaro APT, Fonseca C, Lachance MA, Hittinger CT, Rosa CA. Genomic analysis and D-xylose fermentation of three novel Spathaspora species: Spathaspora girioi sp. nov., Spathaspora hagerdaliae f. a., sp. nov. and Spathaspora gorwiae f. a., sp. nov. FEMS Yeast Res 2016; 16:fow044. [PMID: 27188884 DOI: 10.1093/femsyr/fow044] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/29/2016] [Indexed: 02/03/2023] Open
Abstract
Three novel D-xylose-fermenting yeast species of Spathaspora clade were recovered from rotting wood in regions of the Atlantic Rainforest ecosystem in Brazil. Differentiation of new species was based on analyses of the gene encoding the D1/D2 sequences of large subunit of rRNA and on 642 conserved, single-copy, orthologous genes from genome sequence assemblies from the newly described species and 15 closely-related Debaryomycetaceae/Metschnikowiaceae species. Spathaspora girioi sp. nov. produced unconjugated asci with a single elongated ascospore with curved ends; ascospore formation was not observed for the other two species. The three novel species ferment D-xylose with different efficiencies. Spathaspora hagerdaliae sp. nov. and Sp. girioi sp. nov. showed xylose reductase (XR) activity strictly dependent on NADPH, whereas Sp. gorwiae sp. nov. had XR activity that used both NADH and NADPH as co-factors. The genes that encode enzymes involved in D-xylose metabolism (XR, xylitol dehydrogenase and xylulokinase) were also identified for these novel species. The type strains are Sp. girioi sp. nov. UFMG-CM-Y302(T) (=CBS 13476), Sp. hagerdaliae f.a., sp. nov. UFMG-CM-Y303(T) (=CBS 13475) and Sp. gorwiae f.a., sp. nov. UFMG-CM-Y312(T) (=CBS 13472).
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Affiliation(s)
- Mariana R Lopes
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil Laboratory of Genetics, Genome Center of Wisconsin, Wisconsin Energy Institute, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Camila G Morais
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil Laboratório Nacional de Energia e Geologia, I.P., Unidade de Bioenergia, Estrada do Paço do Lumiar 22, 1649-038 Lisboa, Portugal
| | - Jacek Kominek
- Laboratory of Genetics, Genome Center of Wisconsin, Wisconsin Energy Institute, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Raquel M Cadete
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Marco A Soares
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Ana Paula T Uetanabaro
- Departamento de Ciências Biológicas e Agroindústria, Universidade Estadual Santa Cruz, Ilhéus, BA 45662-900, Brazil
| | - César Fonseca
- Laboratório Nacional de Energia e Geologia, I.P., Unidade de Bioenergia, Estrada do Paço do Lumiar 22, 1649-038 Lisboa, Portugal Section for Sustainable Biotechnology, Aalborg University Copenhagen, A. C. Meyers Vænge 15, 2450 Copenhagen SV, Denmark
| | - Marc-André Lachance
- Department of Biology, University of Western Ontario, 1151 Richmond St. N., N6A 5B7, London, Ontario, Canada
| | - Chris Todd Hittinger
- Laboratory of Genetics, Genome Center of Wisconsin, Wisconsin Energy Institute, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53706, USA DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Carlos A Rosa
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
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22
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Gouliamova DE, Dimitrov RA, Smith MT, Groenewald M, Stoilova-Disheva MM, Guéorguiev BV, Boekhout T. DNA barcoding revealed Nematodospora valgi gen. nov., sp. nov. and Candida cetoniae sp. nov. in the Lodderomyces clade. Fungal Biol 2016; 120:179-90. [DOI: 10.1016/j.funbio.2015.05.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Revised: 05/18/2015] [Accepted: 05/30/2015] [Indexed: 12/12/2022]
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23
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Cadete RM, de las Heras AM, Sandström AG, Ferreira C, Gírio F, Gorwa-Grauslund MF, Rosa CA, Fonseca C. Exploring xylose metabolism in Spathaspora species: XYL1.2 from Spathaspora passalidarum as the key for efficient anaerobic xylose fermentation in metabolic engineered Saccharomyces cerevisiae. BIOTECHNOLOGY FOR BIOFUELS 2016; 9:167. [PMID: 27499810 PMCID: PMC4974763 DOI: 10.1186/s13068-016-0570-6] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Accepted: 07/12/2016] [Indexed: 05/21/2023]
Abstract
BACKGROUND The production of ethanol and other fuels and chemicals from lignocellulosic materials is dependent of efficient xylose conversion. Xylose fermentation capacity in yeasts is usually linked to xylose reductase (XR) accepting NADH as cofactor. The XR from Scheffersomyces stipitis, which is able to use NADH as cofactor but still prefers NADPH, has been used to generate recombinant xylose-fermenting Saccharomyces cerevisiae. Novel xylose-fermenting yeasts species, as those from the Spathaspora clade, have been described and are potential sources of novel genes to improve xylose fermentation in S. cerevisiae. RESULTS Xylose fermentation by six strains from different Spathaspora species isolated in Brazil, plus the Sp. passalidarum type strain (CBS 10155(T)), was characterized under two oxygen-limited conditions. The best xylose-fermenting strains belong to the Sp. passalidarum species, and their highest ethanol titers, yields, and productivities were correlated to higher XR activity with NADH than with NADPH. Among the different Spathaspora species, Sp. passalidarum appears to be the sole harboring two XYL1 genes: XYL1.1, similar to the XYL1 found in other Spathaspora and yeast species and XYL1.2, with relatively higher expression level. XYL1.1p and XYL1.2p from Sp. passalidarum were expressed in S. cerevisiae TMB 3044 and XYL1.1p was confirmed to be strictly NADPH-dependent, while XYL1.2p to use both NADPH and NADH, with higher activity with the later. Recombinant S. cerevisiae strains expressing XYL1.1p did not show anaerobic growth in xylose medium. Under anaerobic xylose fermentation, S. cerevisiae TMB 3504, which expresses XYL1.2p from Sp. passalidarum, revealed significant higher ethanol yield and productivity than S. cerevisiae TMB 3422, which harbors XYL1p N272D from Sc. stipitis in the same isogenic background (0.40 vs 0.34 g gCDW (-1) and 0.33 vs 0.18 g gCDW (-1) h(-1), respectively). CONCLUSION This work explored a new clade of xylose-fermenting yeasts (Spathaspora species) towards the engineering of S. cerevisiae for improved xylose fermentation. The new S. cerevisiae TMB 3504 displays higher XR activity with NADH than with NADPH, with consequent improved ethanol yield and productivity and low xylitol production. This meaningful advance in anaerobic xylose fermentation by recombinant S. cerevisiae (using the XR/XDH pathway) paves the way for the development of novel industrial pentose-fermenting strains.
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Affiliation(s)
- Raquel M. Cadete
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901 Brazil
- Laboratório Nacional de Energia e Geologia, I.P., Unidade de Bioenergia, Estrada do Paço do Lumiar 22, 1649-038 Lisbon, Portugal
- Department of Applied Microbiology, Lund University, PO Box 124, 22100 Lund, Sweden
| | | | - Anders G. Sandström
- Department of Applied Microbiology, Lund University, PO Box 124, 22100 Lund, Sweden
- Novozymes A/S, Krogshøjvej 36, 2880 Bagsværd, Denmark
| | - Carla Ferreira
- Laboratório Nacional de Energia e Geologia, I.P., Unidade de Bioenergia, Estrada do Paço do Lumiar 22, 1649-038 Lisbon, Portugal
| | - Francisco Gírio
- Laboratório Nacional de Energia e Geologia, I.P., Unidade de Bioenergia, Estrada do Paço do Lumiar 22, 1649-038 Lisbon, Portugal
| | | | - Carlos A. Rosa
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901 Brazil
| | - César Fonseca
- Laboratório Nacional de Energia e Geologia, I.P., Unidade de Bioenergia, Estrada do Paço do Lumiar 22, 1649-038 Lisbon, Portugal
- Section for Sustainable Biotechnology, Aalborg University Copenhagen, A. C. Meyers Vænge 15, 2450 Copenhagen SV, Denmark
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Cloning novel sugar transporters from Scheffersomyces (Pichia) stipitis allowing d-xylose fermentation by recombinant Saccharomyces cerevisiae. Biotechnol Lett 2015; 37:1973-82. [DOI: 10.1007/s10529-015-1893-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 06/11/2015] [Indexed: 12/24/2022]
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25
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Ren YC, Liu ST, Li Y, Hui FL. Pichia dushanensis sp. nov. and Hyphopichia paragotoi sp. nov., two sexual yeast species associated with insects and rotten wood. Int J Syst Evol Microbiol 2015; 65:2875-2881. [PMID: 25999593 DOI: 10.1099/ijs.0.000349] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Seven yeast strains were isolated from the gut of insect larvae and decayed wood, which were collected from three localities near Nanyang, Henan Province, China. These strains were identified as two novel species through comparison of sequences in the D1/D2 domains of the large subunit (LSU) rRNA gene and other taxonomic characteristics. Pichia dushanensis sp. nov. was closely related to species in the Pichia clade and produced one to four spheroid ascospores in a deliquescent ascus. The D1/D2 sequence of P. dushanensis sp. nov. differed from its closest relative, Issatchenkia (Pichia) sp. NRRL Y-12824, by 3.6% sequence divergence (16 substitutions and 4 gaps). The species also differed from its four closest known species, Candida rugopelliculosa, Pichia occidentalis, Pichia exigua and Candida phayaonensis, by 4.1-4.4% sequence divergence (22-24 substitutions and 0-2 gaps) in the D1/D2 sequences. Hyphopichia paragotoi sp. nov. belonged to the Hyphopichia clade, and its nearest phylogenetic neighbours were Candida gotoi, Candida pseudorhagii, Candida rhagii and Hyphopichia heimii with 3.2-4.2% sequence divergence (16-21 substitutions and 1 gap) in the D1/D2 sequences. In comparison with previously established species, H. paragotoi sp. nov. formed one hat-shaped ascospore in a persistent ascus. The type strain of P. dushanensis sp. nov. is NYNU 14658(T) ( = CICC 33049(T) = CBS 13912(T)), and the type strain of H. paragotoi sp. nov. is NYNU 14666(T) ( = CICC 33048(T) = CBS 13913(T)).
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Affiliation(s)
- Yong-Cheng Ren
- School of Life Science and Technology, Nanyang Normal University, Nanyang 473061, PR China
| | - Si-Tong Liu
- School of Life Science and Technology, Nanyang Normal University, Nanyang 473061, PR China
| | - Ying Li
- School of Life Science and Technology, Nanyang Normal University, Nanyang 473061, PR China
| | - Feng-Li Hui
- School of Life Science and Technology, Nanyang Normal University, Nanyang 473061, PR China
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Sylvester K, Wang QM, James B, Mendez R, Hulfachor AB, Hittinger CT. Temperature and host preferences drive the diversification of Saccharomyces and other yeasts: a survey and the discovery of eight new yeast species. FEMS Yeast Res 2015; 15:fov002. [PMID: 25743785 DOI: 10.1093/femsyr/fov002] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/12/2015] [Indexed: 01/08/2023] Open
Abstract
Compared to its status as an experimental model system and importance to industry, the ecology and genetic diversity of the genus Saccharomyces has received less attention. To investigate systematically the biogeography, community members and habitat of these important yeasts, we isolated and identified nearly 600 yeast strains using sugar-rich enrichment protocols. Isolates were highly diverse and contained representatives of more than 80 species from over 30 genera, including eight novel species that we describe here: Kwoniella betulae f.a. (yHKS285(T) = NRRL Y-63732(T) = CBS 13896(T)), Kwoniella newhampshirensis f.a. (yHKS256(T) = NRRL Y-63731(T) = CBS 13917(T)), Cryptococcus wisconsinensis (yHKS301(T) = NRRL Y-63733(T) = CBS 13895(T)), Cryptococcus tahquamenonensis (yHAB242(T) = NRRL Y-63730(T) = CBS 13897(T)), Kodamaea meredithiae f.a. (yHAB239(T) = NRRL Y-63729(T) = CBS 13899(T)), Blastobotrys buckinghamii (yHAB196(T) = NRRL Y-63727(T) = CBS 13900(T)), Candida sungouii (yHBJ21(T) = NRRL Y-63726(T) = CBS 13907(T)) and Cyberlindnera culbertsonii f.a. (yHAB218(T) = NRRL Y-63728(T) = CBS 13898(T)), spp. nov. Saccharomyces paradoxus was one of the most frequently isolated species and was represented by three genetically distinct lineages in Wisconsin alone. We found a statistically significant association between Quercus (oak) samples and the isolation of S. paradoxus, as well as several novel associations. Variation in temperature preference was widespread across taxonomic ranks and evolutionary timescales. This survey highlights the genetic and taxonomic diversity of yeasts and suggests that host and temperature preferences are major ecological factors.
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Affiliation(s)
- Kayla Sylvester
- Laboratory of Genetics, Genome Center of Wisconsin, Wisconsin Energy Institute, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53706, USA DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Qi-Ming Wang
- Laboratory of Genetics, Genome Center of Wisconsin, Wisconsin Energy Institute, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53706, USA State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Brielle James
- Laboratory of Genetics, Genome Center of Wisconsin, Wisconsin Energy Institute, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Russell Mendez
- Laboratory of Genetics, Genome Center of Wisconsin, Wisconsin Energy Institute, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53706, USA DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Amanda Beth Hulfachor
- Laboratory of Genetics, Genome Center of Wisconsin, Wisconsin Energy Institute, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Chris Todd Hittinger
- Laboratory of Genetics, Genome Center of Wisconsin, Wisconsin Energy Institute, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53706, USA DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI 53706, USA
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Stambuk BU. Biotechnology strategies with industrial fuel ethanol Saccharomyces cerevisiae strains for efficient 1st and 2nd generation bioethanol production from sugarcane. BMC Proc 2014. [PMCID: PMC4204079 DOI: 10.1186/1753-6561-8-s4-o36] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Molecular phylogenetic analysis reveals the new genus Hemisphaericaspora of the family Debaryomycetaceae. PLoS One 2014; 9:e103737. [PMID: 25075963 PMCID: PMC4116224 DOI: 10.1371/journal.pone.0103737] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2014] [Accepted: 06/30/2014] [Indexed: 11/19/2022] Open
Abstract
Four strains of a novel ascomycetous yeast species were recovered from the frass of wood-boring beetles collected from the Baotianman Nature Reserve and the Laojieling Nature Reserve in Henan Province, China. This species produced unconjugated and deliquescent asci with hemispheroid or helmet-shaped ascospores. Analysis of gene sequences for the D1/D2 domain of the large subunit (LSU) rRNA, as well as analysis of concatenated gene sequences for the nearly complete small subunit (SSU) rRNA and D1/D2 domain of the large subunit (LSU) rRNA placed the novel species in a small clade including only one recognised species, Candida insectamans, in the family Debaryomycetaceae (Saccharomycotina, Ascomycota). DNA sequence analyses demonstrated that the novel species was distinct from all currently recognised teleomorphic yeast genus. The name Hemisphaericaspora nanyangensis gen nov., sp. nov. is proposed to accommodate the novel genus and species. The new genus can be distinguished from closely related teleomorphic genera Lodderomyces and Spathaspora through sequence comparison and ascospore morphology. The ex-type strain of H. nanyangensis is CBS 13020T ( = CICC 33021 = NYNU 13717). Furthermore, based on phenotypic and genotypic characteristics, C. insectamans is transferred to the newly described genus as Hemisphaericaspora insectamans comb. nov., in accordance with the changes in the International Code of Nomenclature for algae, fungi and plants.
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On the reclassification of species assigned to Candida and other anamorphic ascomycetous yeast genera based on phylogenetic circumscription. Antonie van Leeuwenhoek 2014; 106:67-84. [DOI: 10.1007/s10482-014-0170-z] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 04/04/2014] [Indexed: 10/25/2022]
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Draft Genome Sequence of the D-Xylose-Fermenting Yeast Spathaspora arborariae UFMG-HM19.1AT. GENOME ANNOUNCEMENTS 2014; 2:2/1/e01163-13. [PMID: 24435867 PMCID: PMC3894281 DOI: 10.1128/genomea.01163-13] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The draft genome sequence of the yeast Spathaspora arborariae UFMG-HM19.1AT (CBS 11463 = NRRL Y-48658) is presented here. The sequenced genome size is 12.7 Mb, consisting of 41 scaffolds containing a total of 5,625 predicted open reading frames, including many genes encoding enzymes and transporters involved in d-xylose fermentation.
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Morais CG, Cadete RM, Uetanabaro APT, Rosa LH, Lachance MA, Rosa CA. D-xylose-fermenting and xylanase-producing yeast species from rotting wood of two Atlantic Rainforest habitats in Brazil. Fungal Genet Biol 2013; 60:19-28. [DOI: 10.1016/j.fgb.2013.07.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 07/04/2013] [Accepted: 07/08/2013] [Indexed: 11/28/2022]
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