相关实验视频
Updated: Jul 26, 2025

10:36
Measurements of Physiological Stress Responses in C. Elegans
Published on: May 21, 2020
14.0K
在压力环境条件下,Moina Micrura的De Novo转录和生命史反应
Muhammad Raznisyafiq Razak1, Ahmad Zaharin Aris2,3, Fatimah Md Yusoff4,5
1Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
Marine biotechnology (New York, N.Y.)
|June 13, 2023
概括
莫伊纳微型的基因表达显示出发育阶段之间的显著差异,特别是在压力下. 男性的高调基因影响生命史特征和性别交换,为克拉多塞拉研究提供了洞察力.
科学领域:
- * 淡水生态学和生态毒理学
- *比较基因组学和转录基因组学
背景情况:
- * Moina micrura 是热带淡水生态系统研究的关键模型生物.
- * 了解其基因表达对于生态和生态毒理学评估至关重要.
研究的目的:
- * 通过青少年,成年人和男性阶段分析Moina micrura的转录组概况.
- * 在不同的环境条件下识别不同表达的基因.
- * 调查性别决定和表型可塑性的遗传基础.
主要方法:
- * Illumina NovaSeqTM 6000 测序用于转录组分析.
- * 与七个公共数据库对比的唯一注释.
- * 发育阶段之间的基因表达差异分析.
主要成果:
- *51547个单基因被注释,在青少年,成人和男性阶段之间观察到显著的基因表达变化.
- * 在不利的条件下,与应激反应相关的基因 (例如,基,CYP,GST,HSP) 在男性中被上调.
- *参与生殖和发育的基因 (例如,VTG,DSX,JHA) 在男性中被上调,与性别转换相关.
结论:
- *环境条件显著改变了Moina micrura的基因表达,影响了表观和生命史的特征.
- *这项研究为Moina micrura提供了有价值的基因组资源,有助于未来的克拉多塞拉繁殖生物学和适应研究.
- *鉴定出基因为了解淡水动物浮游生物的生态毒理影响和进化过程提供了目标.
相关概念视频
Responses to Salt Stress
13.2K
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.
13.2K
Other Stress Responses in Bacteria
34
Bacteria have global regulatory systems that control several types of stress mechanisms. These include Pho regulon and the heat shock response, which are essential systems for environmental adaptation, such as nutrient limitation and proteotoxic stress. The Pho regulon and the heat shock response exemplify bacterial resilience, enabling rapid adaptation to fluctuating environmental conditions.Pho RegulonBacteria require phosphorus for essential cellular processes, including nucleic acid...
34
Responses to Heat and Cold Stress
13.6K
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.
13.6K
Stress Response System
122
The stress response system, also known as the fight-or-flight response, is the body's automatic physiological reaction to perceived threats. Hans Selye introduced the concept of General Adaptation Syndrome (GAS) to describe the predictable pattern of changes that occur in response to stress. GAS consists of three sequential stages: alarm, resistance, and exhaustion. This model helps explain how chronic stress can contribute to health problems.
Alarm stage
In the alarm stage, the body's...
Alarm stage
In the alarm stage, the body's...
122
Psychological Responses to Stress
79
Psychological responses to stress encompass the various cognitive and emotional reactions individuals experience when faced with challenging or threatening situations, such as a job loss. Prolonged exposure to stressors can disturb emotional balance, increasing negative emotions (e.g., anxiety and sadness) and diminishing positive emotions (e.g., joy and satisfaction). These persistent emotional shifts are associated with an increased risk of both physical illness and mental health issues, such...
79
Physiological Foundation of Stress
103
Stress triggers a coordinated physiological response involving the sympathetic nervous system (SNS) and the hypothalamic-pituitary-adrenal (HPA) axis. This dual activation ensures that the body is prepared for both immediate and prolonged stress management. The process begins with the perception of a stressor. This initial phase activates the SNS, leading to the rapid release of adrenaline (epinephrine) from the adrenal glands.
Role of the Sympathetic Nervous System
Adrenaline triggers the...
Role of the Sympathetic Nervous System
Adrenaline triggers the...
103

