The Volatile Pentadecane From Bacillus Alleviates Plant Iron Deficiency Through Activating the Reduction-Based Fe Uptake System.

ABSTRACT: Iron (Fe) is an essential micronutrient for plant growth and development. Rhizosphere microorganisms play crucial roles in plant Fe nutrition, yet the underlying mechanisms remain largely unknown. Here, we assessed the effect of the volatile organic compounds (VOCs) produced by Bacillus velezensis SQR9 on Fe uptake in Arabidopsis, elucidated the underlying mechanism using genetic and biochemical approaches, and identified the active components of SQR9 VOCs. Our results showed that plants exhibited enhanced Fe uptake, chlorophyll content, fresh weight, and root development when exposed to SQR9 VOCs under Fe-limited conditions. The reduction-based Fe uptake genes in Arabidopsis, encompassing the Fe-deficiency-induced transcription factor FIT, the ferric-chelate reductase FRO2, and the ferrou

SUBMITTER: Tan T 

PROVIDER: S-EPMC12946472 | biostudies-literature | 2026 Mar

REPOSITORIES: biostudies-literature