This has been validated by bacterial mutants and co-inoculation experiments in the field. This finding opened a new way to understand the formation of rhizosheath, and a potential strategy for crop improvement in Barley.
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In collaboration with Fujian Agricultural University (China), we published a research article on Nature Communications and we found that specific soil microorganisms Flavobacteriaceae and Paenibacillaceae bacteria can promote the formation of the rhizoshealth by biosynthesis of indole-3-acetic acid (IAA, a common auxin).
Microbiota is important for rhizosheath formation in acid or alkaline soil under moderate soil drying
- a–d Rhizosheath formation of wild-type (WT) and root hair blocking mutant (nrh) barley plants in acid soil (Ac) or alkaline soil (Al) under moderate soil drying (MSD)
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Xu, F., Liao, H., Yang, J. et al. Auxin-producing bacteria promote barley rhizosheath formation. Nat Commun 14, 5800 (2023).
https://doi.org/10.1038/s41467-023-40916-4