Plant myo-inositol transport influences bacterial colonization phenotypes
- PMID: 37419115
- DOI: 10.1016/j.cub.2023.06.057
Plant myo-inositol transport influences bacterial colonization phenotypes
Abstract
Plant microbiomes are assembled and modified through a complex milieu of biotic and abiotic factors. Despite dynamic and fluctuating contributing variables, specific host metabolites are consistently identified as important mediators of microbial interactions. We combine information from a large-scale metatranscriptomic dataset from natural poplar trees and experimental genetic manipulation assays in seedlings of the model plant Arabidopsis thaliana to converge on a conserved role for transport of the plant metabolite myo-inositol in mediating host-microbe interactions. While microbial catabolism of this compound has been linked to increased host colonization, we identify bacterial phenotypes that occur in both catabolism-dependent and -independent manners, suggesting that myo-inositol may additionally serve as a eukaryotic-derived signaling molecule to modulate microbial activities. Our data suggest host control of this compound and resulting microbial behavior are important mechanisms at play surrounding the host metabolite myo-inositol.
Keywords: Arabidopsis; GWAS; host-microbe interactions; myo-inositol; poplar; root colonization.
Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.
Conflict of interest statement
Declaration of interests The authors declare no competing interests.
Comment in
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The conserved iol gene cluster in Pseudomonas is involved in rhizosphere competence.Curr Biol. 2023 Aug 7;33(15):3097-3110.e6. doi: 10.1016/j.cub.2023.05.057. Epub 2023 Jul 6. Curr Biol. 2023. PMID: 37419116
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Plant-microbe interactions: Plant-exuded myo-inositol attracts specific bacterial taxa.Curr Biol. 2023 Aug 7;33(15):R825-R827. doi: 10.1016/j.cub.2023.06.066. Curr Biol. 2023. PMID: 37552953
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