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Updated: Sep 24, 2025
11:16
A Hydroponic Co-cultivation System for Simultaneous and Systematic Analysis of Plant/Microbe Molecular Interactions and Signaling
Published on: July 22, 2017
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Implications of carbon catabolite repression for plant-microbe interactions
Theophile Franzino1, Hasna Boubakri2, Tomislav Cernava3
1INSA-Lyon, Université Claude Bernard Lyon 1, CNRS, UMR5240, Microbiologie, Adaptation, Pathogénie, Université Lyon, 10 rue Raphaël Dubois, 69622 Villeurbanne, France.
Plant Communications
|May 9, 2022
Summary
Carbon catabolite repression (CCR) is a microbial mechanism that controls carbon source use. This study explores CCR
Area of Science:
- Microbiology
- Molecular Biology
- Genomics
- Plant-Microbe Interactions
Background:
- Carbon catabolite repression (CCR) is a global regulatory mechanism in microorganisms, affecting physiological and adaptive responses.
- CCR prioritizes preferred carbon sources, inhibiting the utilization of secondary carbon sources.
- Mechanisms of CCR vary significantly across bacteria, yeast, and fungi.
Purpose of the Study:
- To provide a comprehensive overview of bacterial Carbon catabolite repression (CCR) mechanisms.
- To highlight the role of CCR in both beneficial and detrimental plant-microbe interactions.
- To investigate the genomic distribution of CCR mechanisms in bacteria and their prevalence in plant rhizospheres.
Main Methods:
- Literature review and meta-analysis of existing studies on CCR.
- Bioinformatic analysis of bacterial genomes from public repositories.
- Analysis of metatranscriptomic data from plant rhizosphere environments.
Main Results:
- CCR regulates not only catabolic genes but also genes involved in plant-microbe interactions.
- The study identified diverse CCR mechanisms across various bacterial species.
- CCR-associated regulatory mechanisms are globally distributed in bacterial genomes and rhizosphere metatranscriptomes.
Conclusions:
- Carbon catabolite repression (CCR) is a critical factor influencing plant-microbe interactions.
- Microbial substrate use preferences, governed by CCR, are significant traits in plant-microbe dynamics.
- Understanding CCR is essential for comprehending microbial ecology and host-associated microbial communities.
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