相关实验视频

Updated: Jul 2, 2025

Isolation and Analysis of Microbial Communities in Soil, Rhizosphere, and Roots in Perennial Grass Experiments

Isolation and Analysis of Microbial Communities in Soil, Rhizosphere, and Roots in Perennial Grass Experiments

Published on: July 24, 2018

季节性和长期发展在Populus微生物群中产生时间动态

William A Argiroff¹, Alyssa A Carrell¹, Dawn M Klingeman¹

¹Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA.

|February 29, 2024

概括

由于宿主植物的发展,树木微生物组因季节性和跨年变化而变化. 这些受到气候影响的时间动态,揭示了微生物群落的短期波动和长期变化.

科学领域:

微生物生态学微生物生态学
植物科学植物科学
生态生态学生态生态学

背景情况:

了解微生物群落的时间动态对于植物健康至关重要.
对树木微生物群的时间变异的控制,特别是对于长寿物种,尚不清楚.
树木微生物组可能会随着季节的变化而波动,或者随着树木的老龄化,在更长的时间内发生变化.

研究的目的:

调查树木微生物组中时间变化的驱动因素.
区分树木相关微生物群落的季节性 (年内) 和长期 (多年) 变化.
分析树 (Populus spp.) 中的细菌,古物和真菌群落. 随着时间的推移.

主要方法:

利用一个常见的花园实验与克隆繁殖的树植物.
采用AMPLCON测序来描述微生物群落的特征.
在连续两年的四个季节中采集了叶子内层,根内层和根系层的样本.

主要成果:

微生物群落的组成在季节和年份之间有显著的变化.
季节性和年度变化占微生物群落组成总变化的21%.
微生物群落的不相似性随着时间的推移而增加,这表明宿主树老化时的长期组成变化,与气候条件相关.

结论:

树微生物组的时间模式是季节性波动和长期发育变化之间的相互作用的结果.
季节性微生物组模式不是静态的,而是由于宿主衰老而逐年演变.
未来对树木微生物组的研究应纳入背景时间动态,以准确评估空间模式和对环境变化的反应.

关键词:

很好的根,很好的根.微生物社区的组合.植物界 (phyllosphere) 是一个生物层.根系球 (Rhizosphere) 是一个根系球.时间模式的时间模式.

更多相关视频

Exploring the Root Microbiome: Extracting Bacterial Community Data from the Soil, Rhizosphere, and Root Endosphere

Exploring the Root Microbiome: Extracting Bacterial Community Data from the Soil, Rhizosphere, and Root Endosphere

Published on: May 2, 2018

Characterizing Microbiome Dynamics – Flow Cytometry Based Workflows from Pure Cultures to Natural Communities

Characterizing Microbiome Dynamics – Flow Cytometry Based Workflows from Pure Cultures to Natural Communities

Published on: July 12, 2018

相关概念视频

Biological Clocks and Seasonal Responses

Biological Clocks and Seasonal Responses

The circadian—or biological—clock is an intrinsic, timekeeping, molecular mechanism that allows plants to coordinate physiological activities over 24-hour cycles called circadian rhythms. Photoperiodism is a collective term for the biological responses of plants to variations in the relative lengths of dark and light periods. The period of light-exposure is called the photoperiod.

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.