热生理学的变化可以驱动微生物社区丰富度的温度依赖
Tom Clegg1,2,3, Samraat Pawar3
1Helmholtz Institute for Functional Marine Biodiversity at the University of Oldenburg (HIFMB), Oldenburg, Germany.
eLife
|September 30, 2024
概括
微生物物种的丰富性是由温度如何影响物种相互作用和生长速度来解释的. 一个新的理论将热特征与多样性联系起来,预测由于专家-通用主义者的权衡,在更高的温度下丰富度达到顶峰.
科学领域:
- 生态生态学 生态生态学
- 微生物学 微生物学
- 理论生态学理论生态学
背景情况:
- 了解沿着环境梯度的物种多样性是一个关键的生态挑战.
- 目前的微生物理论侧重于温度与丰度关系的能量和酶动力学.
研究的目的:
- 根据温度依赖的相互作用和生长速度,推导出解释微生物物种丰富性的一般理论.
- 将微生物热生理学与社区一级的多样性模式联系起来.
主要方法:
- 开发了一种经验基础的理论,将微生物物种丰富性与温度依赖的相互作用和生长率联系起来.
- 分析了相对于增长率差异的竞争力变化率如何影响社区温度-财富关系.
- 研究了热学专家-通用主义者的权衡对物种共存和丰富度峰值的影响.
- 检查了细菌种群的热性能曲线的经验数据.
主要成果:
- 微生物群落温度-丰度关系的形状是由温度依赖的竞争和生长率差异之间的相互作用决定的.
- 在增长率上的专家-通用主义的权衡改变了平衡,导致财富在更高的温度下达到顶峰.
- 观察到的细菌热性能曲线的变化足以产生多样化的社区级温度丰富度反应.
结论:
- 一个新的,通用的机制解释了微生物群落中的温度多样性梯度.
- 提供了一个定量框架,将微生物热生理学与社区多样性联系起来.
- 强调了温度依赖的相互作用和生长速度在塑造微生物多样性模式中的重要性.
相关概念视频
Requirements for Human Life
7.9K
The Earth and its atmosphere have provided humans with air, water, and food, but these are not the only requirements for survival. Humans also require a specific range of temperature and pressure that the Earth and its atmosphere provides.
Oxygen
Atmospheric air is only about 20 percent oxygen, but that oxygen is a key component of the chemical reactions that keep the body alive, including the reactions that produce ATP. Brain cells are susceptible to a lack of oxygen because they require a...
Oxygen
Atmospheric air is only about 20 percent oxygen, but that oxygen is a key component of the chemical reactions that keep the body alive, including the reactions that produce ATP. Brain cells are susceptible to a lack of oxygen because they require a...
7.9K
Factors Affecting Body Temperature
3.9K
As a nurse, it is vital to understand the factors affecting body temperature to monitor variations and effectively evaluate deviations from regular.
Factors may include:
Factors may include:
3.9K
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
Body Temperature
917
The body's temperature, measured in degrees, is determined by the balance between heat production and dissipation to the surrounding environment. For instance, if exercising vigorously, the body will produce more heat, causing sweat and dissipating that heat. Despite extreme environmental conditions and physical exertion, the human temperature-control system maintains a constant core body temperature (the temperature of deep tissues, which are the tissues located beneath the skin and other...
917
Temperature Dependence on Reaction Rate
81.3K
The Collision Theory
Atoms, molecules, or ions must collide before they can react with each other. Atoms must be close together to form chemical bonds. This premise is the basis for a theory that explains many observations regarding chemical kinetics, including factors affecting reaction rates.
The collision theory is based on the postulates that (i) the reaction rate is proportional to the rate of reactant collisions, (ii) the reacting species collide in an orientation allowing contact between...
Atoms, molecules, or ions must collide before they can react with each other. Atoms must be close together to form chemical bonds. This premise is the basis for a theory that explains many observations regarding chemical kinetics, including factors affecting reaction rates.
The collision theory is based on the postulates that (i) the reaction rate is proportional to the rate of reactant collisions, (ii) the reacting species collide in an orientation allowing contact between...
81.3K
Temperature and Thermal Equilibrium
6.6K
Heat and temperature are essential concepts for everyone every day. The study of heat and temperature is part of an area of physics known as thermodynamics. It is not always easy to distinguish heat and temperature.
The concept of temperature has evolved from the common concepts of hot and cold. The scientific definition of temperature explains more than just our sense of hot and cold. Temperature is operationally defined as the quantity measured with a thermometer. Furthermore, temperature is...
The concept of temperature has evolved from the common concepts of hot and cold. The scientific definition of temperature explains more than just our sense of hot and cold. Temperature is operationally defined as the quantity measured with a thermometer. Furthermore, temperature is...
6.6K


