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Related Experiment Video

Updated: Feb 7, 2026

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Long-term farming systems modulate multi-trophic responses.

Manoeli Lupatini1, Gerard W Korthals2, Luiz F W Roesch3

  • 1Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, the Netherlands.

The Science of the Total Environment
|July 30, 2018
PubMed
Summary
This summary is machine-generated.

Organic farming boosts soil fungal diversity and beneficial nematodes while suppressing plant pathogens, unlike conventional methods. This highlights the potential of soil microbiome management for sustainable agriculture and pathogen control.

Keywords:
FungiNematodeProtist communitySoil healthSoil webSustainability

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Area of Science:

  • Agroecology
  • Soil Science
  • Microbiology

Background:

  • Soil microbiome and multi-trophic interactions are crucial for agroecosystem stability and function.
  • Limited understanding exists on how farming systems impact microbial communities, soil fauna, and plant productivity, particularly concerning plant pathogen control.

Purpose of the Study:

  • To compare eukaryotic microbial community composition, nematode populations, and plant productivity between long-term conventional and organic farming systems.
  • To investigate the inter-relationships between soil microbial communities, nematodes, and plant productivity under different farming practices.

Main Methods:

  • Utilized high-throughput sequencing (18S rRNA gene marker) to analyze eukaryotic microbial community composition.
  • Quantified populations of parasitic and free-living nematodes.
  • Assessed plant productivity and analyzed inter-relationships within conventional and organic farming systems.

Main Results:

  • Organic farming significantly increased fungal diversity compared to conventional farming; protist diversity remained similar.
  • Organic farming led to higher populations of free-living nematodes and suppressed plant parasitic nematodes (Meloidogynidae, Pratylenchidae).
  • Fungal diversity and community structure correlated with nematode suppression in organic systems, indicating pathogen-suppressing microbial groups.

Conclusions:

  • Organic farming practices enhance soil fungal diversity and beneficial nematode populations, contributing to the suppression of plant parasitic nematodes.
  • Soil microbiome composition and multi-trophic interactions play a key role in regulating soil-borne plant pathogens.
  • Understanding these interactions can inform sustainable management strategies for agroecosystems and pathogen control.