相关实验视频

Updated: Jul 9, 2025

Simulating Temperature in a Soil Incubation Experiment

Simulating Temperature in a Soil Incubation Experiment

Published on: October 28, 2022

在暴露于长期变暖和相关干燥的土壤环境中跟踪真菌物种级别的反应

Adriana L Romero-Olivares¹, Serita D Frey², Kathleen K Treseder³

¹Department of Biology, New Mexico State University, Las Cruces, NM 88003, United States.

FEMS microbiology letters

|December 7, 2023

概括

气候变化影响真菌群落. 这项研究揭示了关键的真菌物种Mortierella和Penicillium通过优先考虑代谢和细胞维护的基因来适应变暖,确保在压力下生存.

科学领域:

生态生态学生态生态学
菌类学菌类学是指菌类学.
基因组学就是基因组学.

背景情况:

气候变化显著改变了陆地真菌群落及其功能.
了解物种层面的真菌对全球变化驱动因素 (如变暖) 的反应,对于预测生态系统功能至关重要.
目前关于真菌物种适应气候变化的策略的知识有限.

研究的目的:

为了研究两种丰富的菌,Mortierella和Penicillium的物种级转录反应,对长达十年的变暖和干燥实验进行实验.
为了确定参与真菌适应慢性气候压力的特定基因和功能类别.
阐明面临全球变化的真菌潜在的适应途径.

主要方法:

利用微生物隔离技术获得纯真菌培养.
采用全基因组测序来对真菌分离物进行详细的遗传分析.
在实验条件下应用社区层面的元转录学来检查基因表达模式.

主要成果:

对变暖和干燥的真菌转录反应在很大程度上是特定于物种的.
在变暖下,Mortierella和Penicillium都始终提高了与代谢过程,细胞形态发生和蛋白质生物合成相关的基因的调节.
这些转录性投资表明,在长时间的环境压力下维持细胞功能和完整性的策略.

结论:

菌物种对气候变化驱动因素表现出明显的转录性适应.
在变暖和干燥条件下保持高的代谢率和强大的细胞结构是真菌的关键生存策略.
这项研究提供了有关全球气候变化情景的真菌弹性和适应机制的见解.

关键词:

催化过程是催化过程.细胞平衡是细胞的平衡.菌是一种真菌.全球气候变化全球气候变化转录基因组 (metatranscriptomes) 是一个转录基因组.气候变暖导致的变暖

更多相关视频

Isolation of Culturable Yeasts and Molds from Soils to Investigate Fungal Population Structure

Isolation of Culturable Yeasts and Molds from Soils to Investigate Fungal Population Structure

Published on: May 27, 2022

Isolation and Selection of Entomopathogenic Fungi from Soil Samples and Evaluation of Fungal Virulence against Insect Pests

Isolation and Selection of Entomopathogenic Fungi from Soil Samples and Evaluation of Fungal Virulence against Insect Pests

Published on: September 28, 2021

相关概念视频

Responses to Heat and Cold Stress

Responses to Heat and Cold Stress

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.

Responses to Drought and Flooding

Responses to Drought and Flooding

Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.

The Roles of Bacteria and Fungi in Plant Nutrition

The Roles of Bacteria and Fungi in Plant Nutrition

Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.

Global Climate Change

Global Climate Change

Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.

Adaptations that Reduce Water Loss

Adaptations that Reduce Water Loss

Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.