FEMS yeast research最新文献_第9页

Sustainable production of single-cell oil and protein from wastepaper hydrolysate: identification and optimization of a Rhodotorula mucilaginosa strain as a promising yeast. 从废纸水解物中可持续生产单细胞油和蛋白质：一株有前景的粘液红酵母菌株的鉴定和优化。

IF 3.2 4区生物学

FEMS yeast research Pub Date : 2023-01-04 DOI: 10.1093/femsyr/foad044

Amador Campos-Valdez, Manuel R Kirchmayr, Iliana Barrera-Martínez, Leticia Casas-Godoy

{"title":"Sustainable production of single-cell oil and protein from wastepaper hydrolysate: identification and optimization of a Rhodotorula mucilaginosa strain as a promising yeast.","authors":"Amador Campos-Valdez, Manuel R Kirchmayr, Iliana Barrera-Martínez, Leticia Casas-Godoy","doi":"10.1093/femsyr/foad044","DOIUrl":"10.1093/femsyr/foad044","url":null,"abstract":"This study investigated the potential of wastepaper hydrolysate as a sustainable and low-cost carbon source for single-cell oil and protein production, attending to the growing need for alternative feedstocks and waste management strategies. Wastepaper, characterized by its high carbohydrate content, was subjected to enzymatic and chemo-enzymatic treatments for carbohydrate release. The chemo-enzymatic treatment performed better, yielding 65.3 g l-1 of fermentable sugars. A total of 62 yeast strains were screened for single-cell oil accumulation, identifying Rhodotorula mucilaginosa M1K4 as the most advantageous oleaginous yeast. M1K4 lipid production was optimized in liquid culture, and its fatty acid profile was analyzed, showing a high content of industrially valuable fatty acids, particularly palmitic (28%) and oleic (51%). Batch-culture of M1K4 in a 3-l reactor demonstrated the strain's ability to utilize wastepaper hydrolysate as a carbon source, with dry cell weight, total lipid and protein production of 17.7 g l-1, 4.5 g l-1, and 2.1 g l-1, respectively. Wastepaper as a substrate provides a sustainable solution for waste management and bioproduction. This research highlights the potential of R. mucilaginosa for lipid and protein production from wastepaper hydrolysate.","PeriodicalId":12290,"journal":{"name":"FEMS yeast research","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2023-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41104581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to <'CaTip41 regulates protein phosphatase 2A activity, CaRad53 deactivation and the recovery of DNA damage-induced filamentation to yeast form in Candida albicans'>. 更正。

IF 3.2 4区生物学

FEMS yeast research Pub Date : 2023-01-04 DOI: 10.1093/femsyr/foad040

Jinrong Feng, Yinong Duan, Wei Sun, Yongwei Qin, Zhong Zhuang, Dandan Zhu, Xiaolei Sun, Linghuo Jiang

引用次数: 0

The chromosomal evolutionary lineage of the genus Zygosaccharomyces. Zygosaccharomyces属的染色体进化谱系。

IF 3.2 4区生物学

FEMS yeast research Pub Date : 2023-01-04 DOI: 10.1093/femsyr/foad017

Atsushi Sato, Yasuo Ohnishi

{"title":"The chromosomal evolutionary lineage of the genus Zygosaccharomyces.","authors":"Atsushi Sato, Yasuo Ohnishi","doi":"10.1093/femsyr/foad017","DOIUrl":"https://doi.org/10.1093/femsyr/foad017","url":null,"abstract":"Genome ploidy of Zygosaccharomyces rouxii is an intriguing topic in the field of industrial yeast research. However, the evolutionary relationship between the genome of Z. rouxii and other Zygosaccharomyces species is complex and not completely understood. In this study, we determined the genome sequences of Z. rouxii NCYC 3042, also referred to as 'Z. pseudorouxii,' and Z. mellis CBS 736T. We also conducted comparative analysis of the yeast genomes of a total of 21 strains, including 17 strains of nine Zygosaccharomyces species. This comparative genomics revealed that 17 Zygosaccharomyces strains are classified into four groups consisting of nine genome types: (i) Z. rouxii, Z. mellis, Z. sapae, Z. siamensis, and 'Candida versatilis' t-1 belong to the group Rouxii sharing four related genome types (Rouxii-1 to Rouxii-4), (ii) Z. bailii, Z. parabailii, and Z. pseudobailii belong to the group Bailii sharing three related genome types (Bailii-1 to Bailii-3), (iii and iv) Z. bisporus and Z. kombuchaensis belong to the groups Bisporus and Kombuchaensis, respectively, which each have haploid genomes. The Zygosaccharomyces genome seems to have acquired complexity and diversity through evolutionary events such as interspecies hybridization, reciprocal translocation, and diploidization of these nine genome types.","PeriodicalId":12290,"journal":{"name":"FEMS yeast research","volume":"23 ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2023-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/b4/e6/foad017.PMC10035502.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9352585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rice-based fermented products: the functional properties of the microorganisms in the defined starter contributing to melanogenesis inhibition activity. 以大米为基础的发酵产品:定义的发酵剂中微生物的功能特性有助于黑素生成抑制活性。

IF 3.2 4区生物学

FEMS yeast research Pub Date : 2023-01-04 DOI: 10.1093/femsyr/foad030

Orrarat Sangkaew, Chulee Yompakdee

引用次数: 0

Mixed yeast communities contribute to regionally distinct wine attributes. 混合酵母群落造就了葡萄酒与众不同的地方特色。

IF 3.2 4区生物学

FEMS yeast research Pub Date : 2023-01-04 DOI: 10.1093/femsyr/foad005

Diana Lynne Hawkins, Jess Ryder, Soon A Lee, Katie Parish-Virtue, Bruno Fedrizzi, Matthew R Goddard, Sarah J Knight

{"title":"Mixed yeast communities contribute to regionally distinct wine attributes.","authors":"Diana Lynne Hawkins, Jess Ryder, Soon A Lee, Katie Parish-Virtue, Bruno Fedrizzi, Matthew R Goddard, Sarah J Knight","doi":"10.1093/femsyr/foad005","DOIUrl":"10.1093/femsyr/foad005","url":null,"abstract":"There is evidence that vineyard yeast communities are regionally differentiated, but the extent to which this contributes to wine regional distinctiveness is not yet clear. This study represents the first experimental test of the hypothesis that mixed yeast communities-comprising multiple, region-specific, isolates, and species-contribute to regional wine attributes. Yeast isolates were sourced from uninoculated Pinot Noir fermentations from 17 vineyards across Martinborough, Marlborough, and Central Otago in New Zealand. New methodologies for preparing representative, mixed species inoculum from these significantly differentiated regional yeast communities in a controlled, replicable manner were developed and used to inoculate Pinot Noir ferments. A total of 28 yeast-derived aroma compounds were measured in the resulting wines via headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry. Yeast community region of origin had a significant impact on wine aroma, explaining ∼10% of the observed variation, which is in line with previous reports of the effects of region-specific Saccharomyces cerevisiae isolates on Sauvignon Blanc ferments. This study shows that regionally distinct, mixed yeast communities can modulate wine aroma compounds in a regionally distinct manner and are in line with the hypothesis that there is a microbial component to regional distinctiveness, or terroir, for New Zealand Pinot Noir.","PeriodicalId":12290,"journal":{"name":"FEMS yeast research","volume":"23 ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2023-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9952052/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9333036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Elevated energy costs of biomass production in mitochondrial respiration-deficient Saccharomyces cerevisia. 线粒体呼吸缺陷酿酒酵母生物质生产的能源成本升高。

IF 3.2 4区生物学

FEMS yeast research Pub Date : 2023-01-04 DOI: 10.1093/femsyr/foad008

Pranas Grigaitis, Samira L van den Bogaard, Bas Teusink

{"title":"Elevated energy costs of biomass production in mitochondrial respiration-deficient Saccharomyces cerevisia.","authors":"Pranas Grigaitis, Samira L van den Bogaard, Bas Teusink","doi":"10.1093/femsyr/foad008","DOIUrl":"https://doi.org/10.1093/femsyr/foad008","url":null,"abstract":"Microbial growth requires energy for maintaining the existing cells and producing components for the new ones. Microbes therefore invest a considerable amount of their resources into proteins needed for energy harvesting. Growth in different environments is associated with different energy demands for growth of yeast Saccharomyces cerevisiae, although the cross-condition differences remain poorly characterized. Furthermore, a direct comparison of the energy costs for the biosynthesis of the new biomass across conditions is not feasible experimentally; computational models, on the contrary, allow comparing the optimal metabolic strategies and quantify the respective costs of energy and nutrients. Thus in this study, we used a resource allocation model of S. cerevisiae to compare the optimal metabolic strategies between different conditions. We found that S. cerevisiae with respiratory-impaired mitochondria required additional energetic investments for growth, while growth on amino acid-rich media was not affected. Amino acid supplementation in anaerobic conditions also was predicted to rescue the growth reduction in mitochondrial respiratory shuttle-deficient mutants of S. cerevisiae. Collectively, these results point to elevated costs of resolving the redox imbalance caused by de novo biosynthesis of amino acids in mitochondria. To sum up, our study provides an example of how resource allocation modeling can be used to address and suggest explanations to open questions in microbial physiology.","PeriodicalId":12290,"journal":{"name":"FEMS yeast research","volume":"23 ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2023-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9949590/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9202516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Non-saccharomyces yeast probiotics: revealing relevance and potential. 非酿酒酵母益生菌：揭示相关性和潜力。

IF 3.2 4区生物学

FEMS yeast research Pub Date : 2023-01-04 DOI: 10.1093/femsyr/foad041

Silvia Cristina Vergara, María José Leiva, María Victoria Mestre, Fabio Vazquez, María Cristina Nally, Yolanda Paola Maturano

{"title":"Non-saccharomyces yeast probiotics: revealing relevance and potential.","authors":"Silvia Cristina Vergara, María José Leiva, María Victoria Mestre, Fabio Vazquez, María Cristina Nally, Yolanda Paola Maturano","doi":"10.1093/femsyr/foad041","DOIUrl":"10.1093/femsyr/foad041","url":null,"abstract":"Non-Saccharomyces yeasts are unicellular eukaryotes that play important roles in diverse ecological niches. In recent decades, their physiological and morphological properties have been reevaluated and reassessed, demonstrating the enormous potential they possess in various fields of application. Non-Saccharomyces yeasts have gained relevance as probiotics, and in vitro and in vivo assays are very promising and offer a research niche with novel applications within the functional food and nutraceutical industry. Several beneficial effects have been described, such as antimicrobial and antioxidant activities and gastrointestinal modulation and regulation functions. In addition, several positive effects of bioactive compounds or production of specific enzymes have been reported on physical, mental and neurodegenerative diseases as well as on the organoleptic properties of the final product. Other points to highlight are the multiomics as a tool to enhance characteristics of interest within the industry; as well as microencapsulation offer a wide field of study that opens the niche of food matrices as carriers of probiotics; in turn, non-Saccharomyces yeasts offer an interesting alternative as microencapsulating cells of various compounds of interest.","PeriodicalId":12290,"journal":{"name":"FEMS yeast research","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2023-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41108691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Yca1 metacaspase: diverse functions determine how yeast live and let die. Yca1元天冬酶：多种功能决定酵母如何生存和死亡。

IF 2.4 4区生物学

FEMS yeast research Pub Date : 2023-01-04 DOI: 10.1093/femsyr/foad022

Darren K Lam, Gavin Sherlock

引用次数: 0

Zuo1, a ribosome-associated J protein, is involved in glucose repression in Saccharomyces cerevisiae. Zuo1是一种核糖体相关的J蛋白，参与酿酒酵母的葡萄糖抑制。

IF 3.2 4区生物学

FEMS yeast research Pub Date : 2023-01-04 DOI: 10.1093/femsyr/foad038

Yoichi Yamada, Atsuki Shiroma, Suguru Hirai, Jun Iwasaki

{"title":"Zuo1, a ribosome-associated J protein, is involved in glucose repression in Saccharomyces cerevisiae.","authors":"Yoichi Yamada, Atsuki Shiroma, Suguru Hirai, Jun Iwasaki","doi":"10.1093/femsyr/foad038","DOIUrl":"https://doi.org/10.1093/femsyr/foad038","url":null,"abstract":"In Saccharomyces cerevisiae, the J-protein Zuo1 and the nonconventional Hsp70 homologue Ssz1 stimulate the ATPase activity of the chaperone proteins Ssb1 and Ssb2 (Ssb1/2), which are associated with the ribosomes. The dephosphorylation of sucrose nonfermenting 1 (Snf1) on Thr210 is required for glucose repression. The Ssb1/2 and 14-3-3 proteins Bmh1 and Bmh2 appear to be responsible for the dephosphorylation of Snf1 on Thr210 and glucose repression. Here, we investigated the role of Zuo1 in glucose repression. The zuo1∆ strain as well as the ssb1∆ssb2∆ strain exhibited a glucose-specific growth defect during logarithmic growth on glucose. Many of the respiratory chain genes examined were statistically significantly upregulated, but less than 2-fold, in the zuo1∆ strain as well as in the ssb1∆ssb2∆ strain on glucose. In addition, excessive phosphorylation of Snf1 on Thr210 was observed in the zuo1∆ strain as well as in the ssb1∆ssb2∆ strain in the presence of glucose. The mRNA levels of SSB1/2 and BMH1 were statistically significantly reduced by approximately 0.5- to 0.8-fold relative to the wild-type level in the zuo1∆ strain on glucose. These results suggest that Zuo1 is responsible for glucose repression, possibly by increasing the mRNA levels of SSB1/2 and BMH1 during growth on glucose.","PeriodicalId":12290,"journal":{"name":"FEMS yeast research","volume":"23 ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2023-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10119953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Production of single cell oil by two novel nonconventional yeast strains of Curvibasidium sp. isolated from medicinal lichen. 两株从药用地衣中分离的曲子菌属新酵母株生产单细胞油的研究。

IF 3.2 4区生物学

FEMS yeast research Pub Date : 2023-01-04 DOI: 10.1093/femsyr/foad026

Long Bai, Cheng Cheng, Meng-Lin Sun, Jun Li, Yue Zou, Quanyu Zhao, Xin-Qing Zhao

{"title":"Production of single cell oil by two novel nonconventional yeast strains of Curvibasidium sp. isolated from medicinal lichen.","authors":"Long Bai, Cheng Cheng, Meng-Lin Sun, Jun Li, Yue Zou, Quanyu Zhao, Xin-Qing Zhao","doi":"10.1093/femsyr/foad026","DOIUrl":"https://doi.org/10.1093/femsyr/foad026","url":null,"abstract":"Oleaginous yeasts utilize renewable resources to produce lipids, which benefits sustainable development, and it is of great interest to screen robust lipid producers. Curvibasidium sp. belongs to nonconventional yeast that are very limitedly studied. Here, two cold-adaptive strains of Curvibasidium sp., namely, Y230 and Y231, isolated from the medicinal lichen Usnea diffracta were investigated for their potential in lipid production. Genome mining of Curvibasidium sp. Y231 was performed, and the special features related to fatty acid biosynthesis were revealed. Glucose, xylose, and glycerol were tested as sole carbon sources for yeast cell growth and lipid production. The total lipid contents of Curvibasidium sp. Y230 and Y231 range from 38.43% to 54.62% of the cell dry cell weight at 20°C, and glucose is the optimal carbon source. These results indicate that the Curvibasidium sp. strains are promising for sustainable lipid production. Our study provides basis for exploration of lichen-derived strains for biotechnological applications, and also benefits utilization of other nonconventional yeasts for sustainable production based on genome-based studies.","PeriodicalId":12290,"journal":{"name":"FEMS yeast research","volume":"23 ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2023-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9457685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0