Plant miRNAs influence soil bacterial growth and amino acid uptake, restructuring community composition.

ABSTRACT: Plants and microbes use many strategies to acquire soil amino acids. Recent findings suggest that genes related to amino acid metabolism and transport are influenced by plant miRNAs. Here, we first show that Arabidopsis modifies its root miRNA content when fertilized with a mixture of 17 amino acids. The miRNAs that responded to amino acid fertilization and other rhizosphere-abundant miRNAs were applied to a simplified soil community, grown with diverse amino acid sources, to test if they interfered with microbial community growth, community composition, and amino acid consumption. Plant miRNAs affected the community's growth in over 70% of the amino acid sources. The impact of plant miRNAs also depended on the N source supplied to the microbial community, with the strongest effect

SUBMITTER: Dozois JA 

PROVIDER: S-EPMC12648395 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature