Microbiota-mediated nitrogen fixation and microhabitat homeostasis in aerial root-mucilage.

ABSTRACT:

Background

Plants sustain intimate relationships with diverse microbes. It is well-recognized that these plant-associated microbiota shape individual performance and fitness of host plants, but much remains to be explored regarding how they exert their function and maintain their homeostasis.

Results

Here, using pink lady (Heterotis rotundifolia) as a study plant, we investigated the phenomenon of microbiota-mediated nitrogen fixation and elucidated how this process is steadily maintained in the root mucilage microhabitat. Metabolite and microbiota profiling showed that the aerial root mucilage is enriched in carbohydrates and diazotrophic bacteria. Nitrogen isotope-labeling experiments, ¹⁵N natural abundance, and gene expression analysis indicated that the aerial

SUBMITTER: Pang Z 

PROVIDER: S-EPMC10120241 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature