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Updated: Jun 11, 2025
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Dissection of Saccharomyces Cerevisiae Asci
Published on: May 19, 2009
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在Saccharomyces cerevisiae和Schizosaccharomyces pombe之间的差异性Cytoophidium组合
Ruolan Deng1,2,3, Yi-Lan Li1,2,3, Ji-Long Liu1,4
1School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China.
International journal of molecular sciences
|September 28, 2024
概括
细胞,由细胞5'-三酸盐 (CTP) 合成酶 (CTPS) 形成的细胞结构,在暴露于环境变化或CTPS改变时,在芽酵母 (Saccharomyces cerevisiae) 和裂变酵母 (Schizosaccharomyces pombe) 中表现出不同的组装模式.
科学领域:
- 细胞生物学 细胞生物学
- 生物化学 生物化学
- 微生物学 微生物学
背景情况:
- 丁5'-三酸盐 (CTP) 对于细胞过程至关重要,由CTP合成酶 (CTPS) 合成.
- CTPS形成了称为cytoophidia的动态细胞内结构,在所有生命领域都能观察到.
- 了解cytoophidium组合对于理解CTP稳态和细胞调节至关重要.
研究的目的:
- 研究和比较两个模型酵母物种的cytoophidia的组装动态:Saccharomyces cerevisiae (芽酵母) 和Schizosaccharomyces pombe (裂变酵母).
- 分析环境因素 (温度,pH值) 和细胞内变化 (CTPS过度表达) 对这些酵母中的细胞形成和稳定性的影响.
主要方法:
- 在Saccharomyces cerevisiae和Schizosaccharomyces pombe中对cytoophidium组合的比较分析.
- 酵母培养物的暴露在不同的温度和pH值条件下.
- 通过过度表达操纵细胞内CTPS水平.
主要成果:
- 在低温和高温下,裂变酵母细胞细胞分解,而芽酵母细胞细胞则保持稳定.
- pH值的变化诱导了不同的cytoophidium反应:在裂变酵母中分解和在芽酵母中形成.
- 在两种酵母菌种中,CTPS过度表达促进了细胞的存在和维持在整个生长阶段.
结论:
- 赛托菲迪亚组件在Saccharomyces cerevisiae和Schizosaccharomyces pombe之间对环境刺激和基因操纵表现出不同的反应.
- 这些发现突出了CTPS局部化和cytoophidium动态的特定物种调节.
- 这项研究提供了对关键模型生物体中控制细胞形成的差异性机制的见解.
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