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Updated: Feb 10, 2026
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The Plant Infection Test: Spray and Wound-Mediated Inoculation with the Plant Pathogen Magnaporthe Grisea
Published on: August 4, 2018
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The Five Senses: How Do Plant Pathogens Know They Found Their Host?
Rachel Hammond1, Anna Dickinson1, Anika Damm1
1Department of Plant Sciences, University of Cambridge, Cambridge, CB3 0LE, U.K.
Molecular Plant-Microbe Interactions : MPMI
|February 9, 2026
Summary
Pathogens detect host arrival using host-derived signals, analogous to human senses. Understanding these signals could disrupt infection early.
Area of Science:
- Microbiology
- Pathogen Biology
- Infectious Disease
Background:
- Pathogens must sense host arrival to initiate infection.
- The mechanisms and signals mediating host detection by pathogens are poorly understood.
Purpose of the Study:
- To review literature on how pathogens detect host arrival.
- To speculate on potential host-derived signals and detection mechanisms by analogy to human senses.
Main Methods:
- Literature review of pathogen-host interaction.
- Comparative analysis using human sensory systems as an analogy.
- Focus on signals relevant to natural selection and pathogen detection.
Main Results:
- Identified diverse, understudied host-derived signals that pathogens may detect.
- Hypothesized that signal fidelity influences pathogen response magnitude.
- Highlighted the importance of signal detection in pathogen life cycles.
Conclusions:
- Pathogen perception of host arrival is mediated by various signals.
- Signal detection fidelity is crucial for effective pathogen response.
- Understanding pathogen sensory mechanisms offers targets to disrupt infection initiation.
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