相关实验视频
Updated: Jun 12, 2025

12:07
Profiling Thiol Redox Proteome Using Isotope Tagging Mass Spectrometry
Published on: March 24, 2012
16.2K
科巴尔特压力增强的树突蛋白类型总化物生物合成Trichoderma longibrachiatum UN32通过活性氧物种的形成
Xu Qian1, Yuanyuan Dong1, Tuifan Yu1
1College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211800, Jiangsu, People's Republic of China.
World journal of microbiology & biotechnology
|September 19, 2024
概括
(Co2+) 通过增加活性氧物种 (ROS) 来增强 *Trichoderma longibrachiatum* UN32 中的树突类总类 (DTTA) 生产. 用食尸体抑制ROS可以降低DTTAs,证实ROS的存在.
科学领域:
- 生物技术是生物技术.
- 微生物生理学 微生物生理学
- 生物化学 生物化学
背景情况:
- *Trichoderma longibrachiatum* 众所周知,UN32可以产生树突蛋白型总类 (DTTAs).
- 观察到,离子 (Co2+) 增强了DTTAs的产生,并提高了抗氧化酶基因的调节.
- 活性氧物种 (ROS),特别是过氧化 (H2O2) 在这种增强中的作用尚不清楚.
研究的目的:
- 为了研究Co2+诱导的ROS对*T. longibrachiatum*UN32.32中DTTAs生物合成的影响.
- 为了确定ROS在DTTAs生产中是否起到有益或有害的作用.
- 阐明Co2+影响DTTAs合成的机制.
主要方法:
- 使用CoCl2和CH3COOH治疗对H2O2和DTTAs水平进行比较分析.
- 在Co2+治疗后评估氧化损伤和抗氧化酶 (SOD,CAT,POD) 的表达.
- 在外源性ROS杂物 (维生素C,黑激素等) 存在时,对DTTAs产生的评估. ) 的情况.
主要成果:
- 与CH3COOH.相比,CoCl2治疗最佳地增加了12.55%的DTTAs产量,而ROS减少了4%,而CH3COOH.
- Co2+诱导氧化损伤并激活抗氧化酶表达.
- 外源性ROS食尸体显著降低了ROS积累和DTTAs的产生,其中黑激素显示DTTAs下降了45.22%.
- 发现DTTAs积累的最佳H2O2水平在8.82和18.86μmol/g之间.
结论:
- Co2+通过增加细胞内ROS.通过增加T. longibrachiatum*UN32中的DTTAs生产.
- 由Co2+产生的ROS对DTTAs生物合成有益.
- ROS对于正常发酵至关重要,即使没有添加CoCl.
- 这些发现提供了对DTTAs生物合成及其ROS.调节的机制性见解.
相关概念视频
Electron Transport Chain: Complex I and II
12.2K
The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
ROS generation is regulated and maintained at moderate levels necessary...
12.2K
Responses to Heat and Cold Stress
13.4K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.4K
Responses to Salt Stress
13.1K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.1K

