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Related Experiment Video

Updated: Feb 8, 2026

In vivo and In vitro Infection of Potato Roots with Plant Parasitic Nematodes for the Assessment of Induced Structural Changes
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In vivo and In vitro Infection of Potato Roots with Plant Parasitic Nematodes for the Assessment of Induced Structural Changes

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Unseen Struggles: How Plant-Parasitic Nematodes Manipulate ROS Signaling in Host Plants.

Anil Kumar1, Chunoti Changwal1, Thomas J Baum1

  • 1Department of Plant Pathology, Entomology, and Microbiology, Iowa State University, Ames, IA 50011, U.S.A.

Molecular Plant-Microbe Interactions : MPMI
|February 6, 2026
PubMed
Summary

Plant-parasitic nematodes (PPNs) secrete effectors to suppress reactive oxygen species (ROS) crucial for plant immunity. This review details these nematode strategies and their impact on plant defense mechanisms.

Keywords:
H2O2RBOHBantioxidant enzymescyst nematodeseffectoreffector-triggered immunitypattern-triggered immunityplant immunityreactive oxygen speciesroot-knot nematodes

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Area of Science:

  • Plant Pathology
  • Molecular Plant-Microbe Interactions
  • Biochemistry

Background:

  • Reactive oxygen species (ROS) are vital signaling molecules in plant immunity against pathogens.
  • Plant-parasitic nematodes (PPNs) are major agricultural pests that suppress plant defenses.
  • Nematodes secrete effector proteins to interfere with host ROS production and signaling.

Purpose of the Study:

  • To review current knowledge on nematode effector strategies targeting plant ROS.
  • To explore the molecular mechanisms of ROS suppression by nematode effectors.
  • To examine the interplay between ROS and plant hormones during nematode infection.

Main Methods:

  • Literature review synthesizing findings from genomics, molecular biology, and biochemistry.
  • Analysis of effector protein functions in manipulating ROS.
  • Discussion of techniques for ROS detection in plant-nematode interactions.

Main Results:

  • PPN effectors actively suppress ROS bursts and detoxify reactive molecules.
  • Nematode effectors manipulate host pathways to reduce ROS-mediated immunity.
  • ROS signaling is intricately linked with plant hormone pathways during nematode attack.

Conclusions:

  • Nematode effectors represent a sophisticated strategy to disarm plant immunity by targeting ROS.
  • Understanding these interactions is crucial for developing novel strategies against PPNs.
  • Further research is needed to fully elucidate ROS regulation and its manipulation by nematodes.