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A Hydroponic Co-cultivation System for Simultaneous and Systematic Analysis of Plant/Microbe Molecular Interactions and Signaling
Published on: July 22, 2017
Microbiome-mediated plant immunity: Molecular signalling, community assembly, and emerging intergenerational feedback
Xin Liu1, Zhijie Ao1, Xingcan Liu1
1School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China.
Microbiological Research
|June 22, 2026
Summary
Plant immune homeostasis relies on a three-node feedback circuit, integrating molecular recruitment, ecological translation, and intergenerational carry-over for robust host-microbiome interactions.
Area of Science:
- Plant immunity
- Microbiome research
- Ecological immunology
Background:
- Classical plant immunity (PTI & ETI) is insufficient for understanding immune homeostasis in complex microbial communities.
- The extended plant immune system considers host-microbiome networks shaped by root exudates.
- Key dimensions—ecological translation of microbial communities and intergenerational holobiont state—require better integration.
Purpose of the Study:
- To propose a three-node feedback circuit model for analyzing plant immune homeostasis across generations.
- To integrate molecular recruitment, ecological translation, and intergenerational carry-over mechanisms into a unified framework.
- To reframe plant immunity analysis around the holobiont across time as a minimal unit.
Main Methods:
- Conceptual framework development based on a three-node feedback circuit hypothesis.
- Integration of ecological principles (dispersal, filtering, drift, priority effects, functional redundancy) into immune analysis.
- Identification of three distinct routes for intergenerational immune carry-over: epigenetic reprogramming, seed microbiota transmission, and soil legacy.
Main Results:
- The proposed circuit model offers testable predictions linking functional redundancy to immune buffering.
- Soil legacy is predicted to influence next-generation plant immunity.
- Node-specific failure modes are hypothesized to generate distinct immune signatures.
Conclusions:
- Plant immune homeostasis is best understood as a dynamic, multi-generational feedback circuit involving the holobiont.
- This framework facilitates hypothesis-driven research into plant immunity and host-microbiome interactions.
- Analyzing the holobiont across time provides a tractable unit for understanding plant immune resilience.
Keywords:
Induced systemic resistanceIntergenerational microbial feedbackPlant holobiontPlant immunityRhizosphere microbiomeRoot exudatesMore Related Videos
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