结合转录基因和代谢分析,分析光对高CO2的反应
Tingting Fang1, Lu Chen1, Hui Yao1
1Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China.
Journal of fungi (Basel, Switzerland)
|January 27, 2026
概括
高二氧化碳 (CO2) 改变食用真菌的发展,导致Ganoderma lucidum异常的角形形状. 这项研究揭示了新陈代谢和基因表达的分子变化,为种植提供了洞察力.
科学领域:
- 菌类生物学 菌类生物学
- 环境科学 环境科学
- 分子生物学分子生物学
背景情况:
- 二氧化碳 (CO2) 是一种影响真菌果实体形态的关键环境因素.
- 众所周知,高度的二氧化碳可以诱导Ganoderma lucidum中异常的角形果实体.
- 在G. lucidum中二氧化碳诱导的形态变化背后的精确分子机制在很大程度上仍未被探索.
研究的目的:
- 为了研究Ganoderma lucidum果实体对高二氧化碳 (CO2) 度的分子反应.
- 为了比较正常和高CO2条件下的转录和代谢概况.
- 阐明管理二氧化碳引起的形态变化的监管网络.
主要方法:
- 综合转录组学和非目标代谢组学分析.
- 在正常 (0.04%) 和高 (0.3%) 的二氧化碳度下,在三个生长阶段种植G. lucidum果实体.
- 差异性基因表达和代谢物积累概况.
主要成果:
- 高二氧化碳导致了代谢物概况的显著变化,包括氨基酸生物合成的下调和三烯酸和类固醇的积累.
- 转录组分析显示,高二氧化碳对细胞循环,DNA复制和与变相关的基因表达有不良影响.
- 观察到参与二氧化碳信号感知和细胞壁重塑的基因的差异表达,为类型形态发生提供了基础.
结论:
- 高度的二氧化碳会重编程能量代谢,抑制细胞分裂,并诱导G. lucidum的细胞壁重塑.
- 这些分子变化有助于类果实体的发展.
- 这些发现为二氧化碳作为真菌发育信号提供了新的见解,并为优化G. lucidum种植提供了基础.
相关概念视频
Freezing Point Depression and Boiling Point Elevation
39.9K
Boiling Point Elevation
The boiling point of a liquid is the temperature at which its vapor pressure is equal to ambient atmospheric pressure. Since the vapor pressure of a solution is lowered due to the presence of nonvolatile solutes, it stands to reason that the solution’s boiling point will subsequently be increased. Vapor pressure increases with temperature, and so a solution will require a higher temperature than will pure solvent to achieve any given vapor pressure, including one...
The boiling point of a liquid is the temperature at which its vapor pressure is equal to ambient atmospheric pressure. Since the vapor pressure of a solution is lowered due to the presence of nonvolatile solutes, it stands to reason that the solution’s boiling point will subsequently be increased. Vapor pressure increases with temperature, and so a solution will require a higher temperature than will pure solvent to achieve any given vapor pressure, including one...
39.9K
Elevation of Intermediate Points on Vertical Curves
284
Vertical curves are essential in roadway design because they provide smooth transitions between varying roadway grades. Designing vertical curves involves calculating intermediate elevations and identifying the curve's highest or lowest point, which is essential for optimal roadway performance.Intermediate elevations on a vertical curve are determined using the tangent offset method. This method considers the initial elevation at the start of the curve, the grades, and the curve's geometry. The...
284
Responses to Heat and Cold Stress
14.7K
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.
14.7K
Responses to Gravity and Touch
41.9K
Gravitropism: Plant Responses to Gravity
41.9K
Impedance Combination
749
Consider a string of christmas lights, each bulb symbolizing an impedance element. In this series configuration, the flow of electric current remains uniform across every component. This behavior aligns with Kirchhoff's Voltage Law (KVL), which asserts that the total impedance in such a setup equals the sum of individual impedances—akin to resistors in series. It follows that the voltage from the power source is distributed proportionally among these components, adhering to the voltage...
749
Combination Of Resistors
3.7K
Electrical devices in any circuit can be connected either by series or parallel connections. Additionally, circuits can be connected involving both of these connections, known as combination or complex circuits. As these circuits have complex resistor connections, it is necessary to identify different parts as either series or parallel connections, then the whole combination of series and parallel resistors can be reduced to a single equivalent resistance. With the known equivalent resistance...
3.7K


