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Soil Sampling and Isolation of Entomopathogenic Nematodes Steinernematidae, Heterorhabditidae

Soil Sampling and Isolation of Entomopathogenic Nematodes Steinernematidae, Heterorhabditidae

Published on: July 11, 2014

When soils learn to suppress nematodes.

Viet-Cuong Han¹, Sarita Jane Bennett²

¹Centre for Crop and Disease Management (CCDM), Curtin University, Bentley, Perth, Western Australia 6102, Australia; Trace and Environmental DNA (TrEnD) Laboratory, Curtin University, Bentley, Perth, Western Australia 6102, Australia; School of Molecular and Life Sciences, Curtin University, Bentley, Perth, Western Australia 6102, Australia.

Trends in Microbiology

|April 17, 2026

Summary

This summary is machine-generated.

Banana plantation soils suppress root-knot nematodes over time. This shift is linked to changes in soil microbes, free-living nematodes, and beneficial Bacillus bacteria, showing complex interactions.

Keywords:

cross-kingdom interactions disease-suppressive soils keystone taxa microbial metabolites rhizosphere microbiome root-knot nematodes

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Area of Science:

Agricultural Science
Soil Ecology
Microbiology

Background:

Root-knot nematodes are significant agricultural pests.
Soil suppressiveness can develop over time in agricultural systems.

Purpose of the Study:

To investigate the factors contributing to soil suppressiveness against root-knot nematodes in banana plantations.
To understand the role of soil microbial communities and nematode populations in this suppressiveness.

Main Methods:

Evaluation of banana plantations with varying ages (1-10 years).
Analysis of rhizosphere microbiome composition.
Assessment of free-living nematode populations.

Main Results:

Banana plantation soils showed increased suppressiveness to root-knot nematodes with age.
Rhizosphere microbial communities shifted significantly over time.
Enrichment of free-living nematodes and a specific Bacillus taxon was observed in suppressive soils.

Conclusions:

Soil suppressiveness to root-knot nematodes in banana plantations is an emergent property.
Cross-kingdom interactions involving bacteria and nematodes are crucial for developing soil suppressiveness.