Anionic Cerium Oxide Nanoparticles Protect Plant Photosynthesis from Abiotic Stress by Scavenging Reactive Oxygen Species

• Published in: ACS nano Vol. 11; no. 11; pp. 11283 - 11297
• Main Authors: Wu, Honghong, Tito, Nicholas, Giraldo, Juan P
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 28.11.2017
• Subjects: abiotic stress; Acrylic Resins - chemistry; Arabidopsis - metabolism; Arabidopsis thaliana; carbon dioxide fixation; carboxylation; cell walls; Cerium - chemistry; chloroplasts; Chloroplasts - metabolism; electrochemistry; Fluorescent Dyes - chemistry; heat; hydrodynamics; hydrogen peroxide; leaves; Light; membrane potential; mesophyll; Metal Nanoparticles - chemistry; nanoceria; Oxidation-Reduction; Oxidative Stress; Photosynthesis; Photosystem II Protein Complex - metabolism; Plant Leaves - metabolism; plasma membrane; Porosity; Reactive Oxygen Species - metabolism; ribulose-bisphosphate carboxylase; Stress, Physiological; superoxide anion; chloroplast; photosynthesis; nanoceria; reactive oxygen species; Rubisco; quantum yield; oxidative stress

Plant abiotic stress leads to accumulation of reactive oxygen species (ROS) and a consequent decrease in photosynthetic performance. We demonstrate that a plant nanobionics approach of localizing negatively charged, sub-11 nm, spherical cerium oxide nanoparticles (nanoceria) inside chloroplasts in v...