相关实验视频

Updated: Sep 16, 2025

Efficient Sporulation of Saccharomyces cerevisiae in a 96 Multiwell Format

Efficient Sporulation of Saccharomyces cerevisiae in a 96 Multiwell Format

Published on: September 17, 2016

破坏SAP1会使Saccharomyces cerevisiae产生对素的耐受性

¹Department of Cosmetics, Mokwon University , Daejeon, 35349, Korea. bora0507@mokwon.ac.kr.

Folia microbiologica

|July 7, 2025

概括

这项研究确定了SAP1作为酵母酵母中香草耐受性的关键基因. 这种耐受性与减少氧化应激和激活Hog1通路有关,Hog1通路对于生物燃料生产至关重要.

科学领域:

生物技术是生物技术.
酵母遗传学酵母遗传学
应激反应机制应激反应机制

背景情况:

瓦尼林是林氏纤维素生物质转化中的主要抑制剂.
了解瓦尼林耐受性对于高效的生物燃料和可再生化学品生产至关重要.
特定基因在酵母菌利耐受性中的作用在很大程度上仍未被描述.

研究的目的:

在Saccharomyces cerevisiae中识别赋予瓦尼林耐受性的基因.
为了研究香草素耐受性,氧化应激和Hog1通路之间的关系.
为改善工业生物处理中使用的酵母菌株提供见解.

主要方法:

构建和选一个转子子介导的突变库.
鉴定瓦尼林耐受性突变体中破坏基因 (SAP1).
基因删除和过度表达的研究,以确认香草素耐受性表型.
测量细胞内活性氧物种 (ROS) 水平.
对Hog1通路激活和应激反应基因表达的分析.

主要成果:

隔离了一种对利耐受性的突变,鉴定出SAP1基因被破坏.
删除SAP1赋予了香草素耐受性,而其过度表达降低了耐受性.
这种对利耐受性的突变体在利压力下表现出细胞内ROS水平的降低.
观察到Hog1通路的激活和压力反应基因 (MSN2/4,CTT1,HSP12,DDR2) 的表达增加.

结论:

在Saccharomyces cerevisiae中,SAP1在调节素耐受性方面发挥着重要作用.
瓦尼林耐受性与氧化应激的缓解和Hog1应激反应途径的激活有关.
这些发现有助于开发强大的酵母菌株,用于基于纤维素蛋白的生物生产.

关键词:

在 SAP1 里面.这种植物是Saccharomyces cerevisiae.转子体突变的突变发生.瓦尼林耐受性瓦尼林耐受性

更多相关视频

Saccharomyces cerevisiae Exponential Growth Kinetics in Batch Culture to Analyze Respiratory and Fermentative Metabolism

Saccharomyces cerevisiae Exponential Growth Kinetics in Batch Culture to Analyze Respiratory and Fermentative Metabolism

Published on: September 30, 2018

In Vivo Monitoring of Transcriptional Activity During Metabolic Transition Using a Bioluminescent Reporter in Yeast

In Vivo Monitoring of Transcriptional Activity During Metabolic Transition Using a Bioluminescent Reporter in Yeast

Published on: February 21, 2025

相关概念视频

Yeast Signaling

Yeast Signaling

Yeasts are single-celled organisms, but unlike bacteria, they are eukaryotes (cells with a nucleus). Cell signaling in yeast is similar to signaling in other eukaryotic cells. A ligand, such as a protein or a small molecule released from a yeast cell, attaches to a receptor on the cell surface. The binding stimulates second-messenger kinases to activate or inactivate transcription factors that further regulate gene expression. Many of the yeast intracellular signaling cascades have similar...

Gene Regulation During Sporulation

Gene Regulation During Sporulation

Sporulation is a complex developmental process that allows certain Gram-positive bacteria, such as Bacillus subtilis and Clostridium species, to survive extreme environmental conditions. This process is tightly regulated by a series of signaling cascades and transcriptional controls, ensuring the formation of a highly resistant endospore.Sporulation is triggered by unfavorable conditions, such as nutrient depletion, and is governed by a phosphorelay system. One of the sensor kinases, such as...