Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

Nematode predation mitigates microbial competition to sustain the plant growth-promoting effect of Streptomyces

Ke-Fan Huo, Jing-Nan Zhang, Elly Morriën, Ping Liu, Neil B. McLaughlin, Kun Bai, Zhenlong Wang, Shi-Xiu Zhang, Lu-Jun Li

European Journal of Soil Biology · 2026

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Summary

This 2026 study, published in the European Journal of Soil Biology, investigates the ecological mechanisms by which predatory nematodes in soil food webs support the plant growth-promoting activity of Streptomyces bacteria. The authors propose that nematode predation on competing microorganisms alleviates competitive pressure on Streptomyces, thereby sustaining its beneficial effects on plant performance. The work extends understanding of how soil fauna structure microbial communities to enhance agricultural productivity.

UK applicability

The findings may be relevant to UK arable and horticultural systems where biological soil amendments and microbe-based crop inputs are increasingly adopted. However, applicability will depend on whether the study's experimental conditions reflect UK soil types, climate, and cropping contexts.

Key measures

Plant growth metrics (likely biomass, shoot/root development); Streptomyces population density or activity; microbial competition indicators; nematode abundance or predation rates

Outcomes reported

The study examined how predatory nematodes influence the efficacy of Streptomyces as plant growth-promoting organisms by modulating competitive interactions with other soil microbes. As suggested by the title, nematode predation may enhance or sustain the beneficial effects of Streptomyces on plant growth.

Theme
Farming systems, soils & land use
Subject
Soil biology & microbiology
Study type
Research
Study design
Field trial or controlled microcosm experiment
Source type
Peer-reviewed study
Status
Published
System type
Laboratory / in vitro
DOI
10.1016/j.ejsobi.2026.103806
Catalogue ID
SNmoqqs089-56u5ke

Topic tags

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