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Damage-Associated Molecular Patterns and Systemic Signaling
Fiona M Harris1, Zhonglin Mou1
1Department of Microbiology and Cell Science, University of Florida, P.O. Box 110700, Gainesville, FL 32611.
Phytopathology
|September 4, 2023
Summary
Plant damage-associated molecular patterns (DAMPs) act as alarm signals, initiating immune responses and priming plants against future threats. Emerging research highlights their role in systemic signaling for enhanced plant defense.
Area of Science:
- Plant biology
- Molecular signaling
- Plant immunity
Background:
- Cellular damage from wounding, infection, or herbivory releases alarm signals.
- Damage-associated molecular patterns (DAMPs) are host-derived molecules perceived by pattern recognition receptors.
- DAMP perception triggers local immune responses and primes plants for enhanced resistance.
Purpose of the Study:
- To summarize the identity, signaling mechanisms, and synergistic interactions of plant DAMPs.
- To focus on DAMPs with established roles in systemic signaling.
- To review the role of DAMPs in plant immune priming.
Main Methods:
- Literature review and synthesis of published research on plant DAMPs.
- Analysis of signaling pathways initiated by DAMP perception.
- Investigation of DAMP involvement in systemic acquired immunity.
Main Results:
- DAMPs elicit crucial immune outputs including calcium influx, ROS generation, and defense gene expression.
- DAMP perception leads to enhanced resistance against subsequent pathogen attacks.
- Evidence suggests DAMPs contribute to mobile signals that induce systemic immune priming.
Conclusions:
- Plant DAMPs are key regulators of both local and systemic immune responses.
- Understanding DAMPs is crucial for developing strategies to enhance plant defense and crop resilience.
- Further research into DAMP synergy and systemic signaling is warranted.
Keywords:
cutindamage-associated molecular patterneATPextracellular NAD(P) (eNAD[P])glutamatemobile signaloligogalacturonidephytocytokinesystemic acquired resistancesystemic signalingsysteminMore Related Videos
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