Magnetite nanoparticle coating chemistry regulates root uptake pathways and iron chlorosis in plants.

ABSTRACT: Understanding the fundamental interaction of nanoparticles at plant interfaces is critical for reaching field-scale applications of nanotechnology-enabled plant agriculture, as the processes between nanoparticles and root interfaces such as root compartments and root exudates remain largely unclear. Here, using iron deficiency-induced plant chlorosis as an indicator phenotype, we evaluated the iron transport capacity of Fe₃O₄ nanoparticles coated with citrate (CA) or polyacrylic acid (PAA) in the plant rhizosphere. Both nanoparticles can be used as a regulator of plant hormones to promote root elongation, but they regulate iron deficiency in plant in distinctive ways. In acidic root exudates secreted by iron-deficient Arabidopsis thaliana, CA-coated particles r

SUBMITTER: Sun XD 

PROVIDER: S-EPMC10319022 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature