Jamnik Polona, Raspor Peter
Food Science and Technology Department, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia.
J Biochem Mol Toxicol. 2005;19(4):195-203. doi: 10.1002/jbt.20091.
Changes in the chemical or physical conditions of the cell that impose a negative effect on growth demand rapid cellular responses, which are essential for survival. Molecular mechanisms induced upon exposure of cells to such adverse conditions are commonly designated as stress responses. Herein, different methods which can be used to monitor oxidative stress response in yeasts are presented including monitoring of oxygen partial pressure during yeast cultivation, cell viability determination, measuring activity of enzymatic and level of nonenzymatic primary antioxidant defense systems, and examination of transcriptome and proteome changes. Additionally, some studies are given as examples of particular method's application for studying oxidative stress response in yeasts.
细胞化学或物理条件的变化若对生长产生负面影响,就需要细胞做出快速反应,而这对细胞存活至关重要。细胞暴露于此类不利条件时所诱导的分子机制通常被称为应激反应。本文介绍了可用于监测酵母氧化应激反应的不同方法,包括监测酵母培养过程中的氧分压、测定细胞活力、测量酶活性和非酶初级抗氧化防御系统的水平,以及检测转录组和蛋白质组的变化。此外,还给出了一些研究实例,以说明特定方法在研究酵母氧化应激反应中的应用。