Plant cell wall-mediated immunity: cell wall changes trigger disease resistance responses
Laura Bacete1,2, Hugo Mélida1, Eva Miedes1,2
1Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo UPM, 28223, Pozuelo de Alarcón, Madrid, Spain.
The Plant Journal : for Cell and Molecular Biology
|December 22, 2017
Summary
Plants use cell wall integrity (CWI) monitoring systems, involving pattern recognition receptors (PRRs) and damage-associated molecular patterns (DAMPs), to coordinate growth and defense. Identifying these components enhances crop disease resistance.
Area of Science:
- Plant Biology
- Molecular Plant Pathology
- Cellular Defense Mechanisms
Background:
- Plants possess sophisticated monitoring systems for morphogenesis and environmental threats.
- The plant cell wall is an active component in these monitoring systems, beyond its structural role.
- Cell wall integrity (CWI) maintenance involves plasma membrane sensors and pattern recognition receptors (PRRs).
Purpose of the Study:
- To explore the role of plant cell wall monitoring systems in coordinating developmental and defense responses.
- To investigate the perception of cell wall integrity alterations by plant sensors.
- To identify novel plant sensors and damage-associated molecular patterns (DAMPs) involved in CWI.
Main Methods:
- Analysis of plant cell wall mutants affecting biosynthesis and remodeling.
- Investigation of responses to cell wall damage caused by pathogens or pests.
- Characterization of pattern recognition receptors (PRRs) and their plant-derived ligands (DAMPs).
Main Results:
- Alterations in CWI, through mutations or damage, activate specific plant defense and growth responses.
- DAMPs act as danger signals, activating DAMP-triggered immunity (DTI) pathways.
- Current knowledge on CWI sensors and PRR-DAMP pairs is limited.
Conclusions:
- Understanding CWI perception is crucial for elucidating the immune functions of the wall monitoring system.
- Identification of CWI sensors and PRR-DAMPs can aid in breeding crops with enhanced disease resistance.
- This research may lead to novel agricultural strategies for improved crop protection.
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