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Related Experiment Video

Updated: Jan 30, 2026

The Plant Infection Test: Spray and Wound-Mediated Inoculation with the Plant Pathogen Magnaporthe Grisea
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Review: Plant-pathogen interactions through the plasmodesma prism.

Elena E Ganusova1, Tessa M Burch-Smith1

  • 1Department of Biochemistry & Cellular and Molecular Biology, University of Tennessee, Knoxville, TN, 37996, United States.

Plant Science : an International Journal of Experimental Plant Biology
|February 3, 2019
PubMed
Summary

Plant pathogens exploit plasmodesmata (PD) for infection, but plants also use these cell connections for defense. Further research is needed on pathogen effects on molecule transport and chloroplast roles in PD regulation.

Keywords:
Defense responseIntercellular traffickingPathogenPlant immunityPlasmodesmata

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Area of Science:

  • Plant biology
  • Pathogen-host interactions
  • Cellular communication

Background:

  • Plasmodesmata (PD) are crucial for plant cell-to-cell communication and metabolite transport.
  • Plant pathogens manipulate PD to facilitate infection and spread within host plants.
  • PD are involved in both local and systemic pathogen movement, and plants utilize them for defense.

Purpose of the Study:

  • To highlight critical, unresolved questions in plant-pathogen interactions at PD.
  • To emphasize the need to study pathogen effects on endogenous molecule trafficking via PD.
  • To underscore the role of chloroplasts in regulating PD during plant defense.

Main Methods:

  • Review of current research on plasmodesmata and plant-pathogen interactions.
  • Identification of knowledge gaps and future research directions.
  • Discussion of challenges in studying PD due to their complex nature.

Main Results:

  • Pathogen subversion of PD is a key strategy for plant infection.
  • Plants actively use PD to limit pathogen spread and mount defenses.
  • Understanding PD regulation by chloroplasts is vital for plant immunity.

Conclusions:

  • Further investigation into pathogen-PD interactions and their impact on endogenous transport is essential.
  • Novel imaging and quantification techniques are required to overcome PD research challenges.
  • Targeting PD regulation offers potential strategies for enhancing plant disease resistance.