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Related Experiment Video

Updated: Jun 27, 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

Understanding Salinity-Driven Modulation of Microbial Interactions: Rhizosphere versus Edaphic Microbiome Dynamics.

Rui Li^1,2,3, Haihua Jiao^1,4, Bo Sun^1,2

¹Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.

|April 27, 2024

Summary

Soil salinization harms microbial communities, reducing bacterial diversity and network stability. Fungi, however, show increased interactions with bacteria in the rhizosphere, potentially aiding resilience to salt stress.

Keywords:

bipartite network co-occurrence community assembly fungal–bacterial interactions rhizosphere saline soil

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Last Updated: Jun 27, 2025

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Published on: July 24, 2018

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A Lipid Extraction and Analysis Method for Characterizing Soil Microbes in Experiments with Many Samples

A Lipid Extraction and Analysis Method for Characterizing Soil Microbes in Experiments with Many Samples

Published on: July 16, 2017

Area of Science:

Environmental Science
Microbiology
Soil Science

Background:

Soil salinization is a significant global environmental issue impacting ecosystems.
Soil microorganisms are vital for ecosystem services and are sensitive to salinity.
Understanding microbial responses to salinity is crucial for ecosystem management.

Purpose of the Study:

To investigate the effects of increased soil salinity on microbial communities.
To compare microbial community dynamics in the rhizosphere versus bulk soil under salt stress.
To elucidate the assembly processes and interactions shaping microbial communities in saline environments.

Main Methods:

Analysis of bacterial and fungal diversity and community structure.
Construction and analysis of microbial co-occurrence networks.
Application of network analysis to assess microbial interactions and community assembly.

Main Results:

Increasing salinity decreased bacterial alpha diversity and co-occurrence network stability.
Bacterial community assembly was increasingly driven by heterogeneous selection under salt stress.
Fungal community assembly was dominated by stochastic processes, showing lower sensitivity to salinity.
Fungi exhibited more significant interactions than bacteria in the rhizosphere under salinity stress.

Conclusions:

Soil salinity significantly alters microbial community structure and function.
Rhizosphere microbial interactions, particularly cross-domain ones involving fungi, may enhance bacterial resilience to salt stress.
Fungal roles in microbial interactions are critical in saline rhizosphere environments.