title: Nitrogen dioxide is a positive regulator of plant growth.
abstract: Atmospheric nitric oxide (NO) and nitrogen dioxide (NO₂) have long been recognized as either detrimental or beneficial for plant development. Recent research has established that NO is a phytohormone. Our present knowledge of the physiological role of NO₂ is incomplete. We do know, however, that exogenous NO₂ positively regulates the vegetative and reproductive growth of plants. We may therefore postulate that NO₂ is a positive growth regulator for plants. We are now in a position to coherently summarize what is known of NO₂ physiology; collated information on the topic is presented here.
authors: Department of Mathematical and Life Sciences; Hiroshima University; Higashi-Hiroshima, Japan.
authors: Misa
authors: M
authors: Takahashi
authors: Department of Mathematical and Life Sciences; Hiroshima University; Higashi-Hiroshima, Japan.
authors: Hiromichi
authors: H
authors: Morikawa
mesh_terms: D049109:Cell Proliferation / Q000187:drug effects; D017343:Genes, Plant; D009569:Nitric Oxide / Q000494:pharmacology; D009585:Nitrogen Dioxide / Q000494:pharmacology*; D009929:Organ Size / Q000187:drug effects / Q000235:genetics; D063245:Plant Development / Q000187:drug effects* / Q000235:genetics
chemical_list: D009569:Nitric Oxide; D009585:Nitrogen Dioxide
keywords: cell enlargement; cell proliferation; hormone signaling; nitric oxide signaling; nitrogen dioxide; organ growth; organ size control