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The Soil Ecosystem

The Soil Ecosystem

Plants obtain inorganic minerals and water from the soil, which acts as a natural medium for land plants. The composition and quality of soil depend not only on the chemical constituents but also on the presence of living organisms. In general, soils contain three major components:

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Related Experiment Video

Updated: Dec 7, 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

Development and Analysis of a Stable, Reduced Complexity Model Soil Microbiome.

Ryan McClure¹, Dan Naylor¹, Yuliya Farris¹

¹Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, United States.

Frontiers in Microbiology

|September 28, 2020

Summary

Researchers developed simplified model soil microbial consortia from arid grassland soil. These stable, storable consortia aid in studying complex soil microbiome interactions and functions.

Keywords:

chitin degradation consortia model microbiome network soil microbiome

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Related Experiment Videos

Last Updated: Dec 7, 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

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

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Published on: July 16, 2017

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

Area of Science:

Microbiology
Soil Science
Ecology

Background:

The soil microbiome is crucial for nutrient cycling and plant growth.
Analyzing the complex soil microbiome is challenging due to thousands of interacting species.

Purpose of the Study:

To simplify the analysis of soil microbial communities by creating model consortia.
To develop storable and revivable microbial tools for research.

Main Methods:

Enriched microbial communities from arid grassland soil using chitin as a carbon source.
Developed model soil consortia with tractable richness (30-50 OTUs) representing native soil phyla.
Stored and revived consortia, maintaining community composition.
Studied species interactions within a model consortium (MSC-1) using co-cultivation and soil growth experiments.

Main Results:

Created stable model soil consortia (MSC-1) with diverse bacterial phyla.
Demonstrated successful storage and revival of consortia, preserving community structure.
Identified keystone species and interspecies interactions within MSC-1 through co-abundance analyses.

Conclusions:

This approach successfully simplifies complex soil microbiomes into manageable model consortia.
Model soil consortia are valuable, storable tools for studying microbial interactions and functions.
Understanding these interactions enhances knowledge of the soil ecosystem.