title: Nitric oxide and plant iron homeostasis.
abstract: Like all living organisms, plants demand iron (Fe) for important biochemical and metabolic processes. Internal imbalances, as a consequence of insufficient or excess Fe in the environment, lead to growth restriction and affect crop yield. Knowledge of signals and factors affecting each step in Fe uptake from the soil and distribution (long-distance transport, remobilization from old to young leaves, and storage in seeds) is necessary to improve our understanding of plant mineral nutrition. In this context, the role of nitric oxide (NO) is discussed as a key player in maintaining Fe homeostasis through its cross talk with hormones, ferritin, and frataxin and the ability to form nitrosyl-iron complexes.
authors.affiliation: Instituto de Fisiología Vegetal (INFIVE), Universidad Nacional de La Plata (UNLP) and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
authors.forename: Agustina
authors.initials: A
authors.lastname: Buet
authors.forename: Marcela
authors.initials: M
authors.lastname: Simontacchi
mesh_terms: D000818:Animals; D006706:Homeostasis / Q000502:physiology*; D006801:Humans; D007501:Iron / Q000378:metabolism*; D009569:Nitric Oxide / Q000009:adverse effects / Q000378:metabolism*; D010944:Plants / Q000378:metabolism*
chemical_list: D009569:Nitric Oxide; D007501:Iron
keywords: iron homeostasis; labile iron pool; nitric oxide; nitrosyl-iron complexes; plant iron nutrition