Differences between flocculating yeast and regular industrial yeast in transcription and metabolite profiling during ethanol fermentation
Li Lili; Wang Xiaoning; Jiao Xudong; Qin Song
2017-03-01
发表期刊SAUDI JOURNAL OF BIOLOGICAL SCIENCES
ISSN1319-562X
卷号24期号:3页码:459-465
摘要Objectives: To improve ethanolic fermentation performance of self-flocculating yeast, difference between a flocculating yeast strain and a regular industrial yeast strain was analyzed by transcriptional and metabolic approaches. Results: The number of down-regulated (industrial yeast YIC10 vs. flocculating yeast GIM2.71) and up-regulated genes were 4503 and 228, respectively. It is the economic regulation for YIC10 that non-essential genes were down-regulated, and cells put more "energy" into growth and ethanol production. Hexose transport and phosphorylation were not the limiting-steps in ethanol fermentation for GIM2.71 compared to YIC10, whereas the reaction of 1,3-disphosphoglycerate to 3-phosphoglycerate, the decarboxylation of pyruvate to acetaldehyde and its subsequent reduction to ethanol were the most limiting steps. GIM2.71 had stronger stress response than non-flocculating yeast and much more carbohydrate was distributed to other bypass, such as glycerol, acetate and trehalose synthesis. Conclusions: Differences between flocculating yeast and regular industrial yeast in transcription and metabolite profiling will provide clues for improving the fermentation performance of GIM2.71. (C) 2017 Production and hosting by Elsevier B.V. on behalf of King Saud University.
关键词Ethanol Fermentation Gene Expression Jerusalem Artichoke Metabolic Analysis Self-flocculating Yeast
DOI10.1016/j.sjbs.2017.01.013
项目资助者National Natural Science Foundation of China(21306221) ; Science and Technology Development Program of Shandong Province(2010GSF10208)
收录类别SCI
关键词[WOS]INDIVIDUAL HEXOSE TRANSPORTERS ; SACCHAROMYCES-CEREVISIAE ; JERUSALEM-ARTICHOKE ; GLYCOLYTIC FLUX ; GLYCEROL ; EXPRESSION ; GENES
文章类型Article
语种英语
WOS研究方向Life Sciences & Biomedicine - Other Topics
WOS记录号WOS:000402474900002
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/22523
专题海岸带生物学与生物资源利用所重点实验室
作者单位Chinese Acad Sci, Yantai Inst Coastal Zone Res, 17 Chunhui Rd, Yantai 264003, Peoples R China
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GB/T 7714
Li Lili,Wang Xiaoning,Jiao Xudong,et al. Differences between flocculating yeast and regular industrial yeast in transcription and metabolite profiling during ethanol fermentation[J]. SAUDI JOURNAL OF BIOLOGICAL SCIENCES,2017,24(3):459-465.
APA Li Lili,Wang Xiaoning,Jiao Xudong,&Qin Song.(2017).Differences between flocculating yeast and regular industrial yeast in transcription and metabolite profiling during ethanol fermentation.SAUDI JOURNAL OF BIOLOGICAL SCIENCES,24(3),459-465.
MLA Li Lili,et al."Differences between flocculating yeast and regular industrial yeast in transcription and metabolite profiling during ethanol fermentation".SAUDI JOURNAL OF BIOLOGICAL SCIENCES 24.3(2017):459-465.
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