EGFP-based evaluation of temperature inducible native promoters of industrial ale yeast by using a high throughput system

EGFP-based evaluation of temperature inducible native promoters of industrial ale yeast by using a high throughput system
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使用高通量系统基于 EGFP 评估工业啤酒酵母的温度诱导天然启动子

DOI:
10.1016/j.lwt.2015.12.020
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发表时间:
2016
期刊:
Lwt - Food Science and Technology
影响因子:
--
通讯作者:
T. Becker
T. Becker
中科院分区:
--
文献类型:
--
作者:
Fischer;C. Engstler;S. Procopio;T. Becker

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在食品和饮料生产的工业发酵过程中,靶向诱导基因表达可以满足未来的需求。到目前为止,在这种特定条件下靶基因表达的诱导表达模式的数据有限。为了评价温度诱导的天然启动子,通过利用高通量系统应用广泛使用的报告基因“增强型绿色荧光蛋白”(EGFP)。对工业酵母菌株Saccharomyces cerevisiae TUM 68的5种不同启动子(PHSP 12、PHSP 26、PHSP 30、PHSP 104和PSSA 3)进行了评价。它们在温度变化期间被诱导,这可能发生在发酵到成熟的过渡期间。此外,通过使用模拟12 °P麦芽汁的合成麦芽汁,研究了不同乙醇含量对基因表达的诱导作用。启动子PHSP 30和PSSA 3在温度从20 °C变化到10 °C时显示最高的荧光值。从20 °C到4 °C的温度变化导致PSSA 3和PHSP 26的最高荧光值。此外,这些启动子显示出最低的诱导值,由乙醇浓度在4和6%-体积之间。用这种方法,它是可能的,以评估本地温度诱导的启动子,用于在严格的工业条件下的自克隆酿酒酵母。
Targeted induced gene expression for industrial fermentation processes in food and beverage production could fulfill future requirements. Up to now, there is limited data of inducible expression patterns for targeted gene expression under such specific conditions. For the evaluation of temperature induced native promoters, the widely used reporter gene “enhanced green fluorescence protein” (EGFP) by utilizing high throughput systems was applied. Five different promoters of the industrial yeast strain Saccharomyces cerevisiae TUM 68 were evaluated (PHSP12,PHSP26,PHSP30,PHSP104, andPSSA3). They are induced during temperature shifts, which may occur in transition of fermentation to maturation. Furthermore, the induction of gene expression affected by different contents of ethanol were investigated, by using synthetic wort which mimics a 12 °P wort. PromotersPHSP30 andPSSA3 showed the highest fluorescence value during temperature shift from 20 °C to 10 °C. A temperature shift from 20 °C to 4 °C, resulted in highest fluorescence values ofPSSA3 andPHSP26. Further, these promoters showed the lowest induction value by ethanol concentrations between 4 and 6%-vol. With this method, it is possible to evaluate native temperature induced promoters for the usage in self-cloning brewing yeast under strict industrial conditions.
通过基因工程酿酒酵母合成食品调味品苯甲酸甲酯。
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发表时间: 2006
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从报告蛋白水平推断基因表达动态。
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