Fluoride transport in Arabidopsis thaliana plants is impaired in Fluoride EXporter (FEX) mutants.

ABSTRACT: Fluoride is an environmental toxin prevalent in water, soil, and air. A fluoride transporter called Fluoride EXporter (FEX) has been discovered across all domains of life, including bacteria, single cell eukaryotes, and all plants, that is required for fluoride tolerance. How FEX functions to protect multicellular plants is unknown. In order to distinguish between different models, the dynamic movement of fluoride in wildtype (WT) and fex mutant plants was monitored using [¹⁸F]fluoride with positron emission tomography. Significant differences were observed in the washout behavior following initial fluoride uptake between plants with and without a functioning FEX. [¹⁸F]Fluoride traveled quickly up the floral stem and into terminal tissues in WT plants. In contrast, th

SUBMITTER: Tausta SL 

PROVIDER: S-EPMC10859346 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature