title: [Phytotoxicity of colloidal solutions of metal-containing nanoparticles].
abstract: Phytotoxicity of colloidal solutions of metal-containing nanoparticles (Ag, Cu, Fe, Zn, Mn) has been investigated using a standard Allium cepa (L.) test system. Toxicity of experimental solutions at the organism level was evaluated in terms of biomass growth of onion roots, and cytotoxicity was estimated by the mitotic index of root meristem cells. The colloidal solutions of metal nanoparticles inhibited the growth of Allium cepa (L.) roots due to their ability to penetrate into cells and interact with their components, and thus to inhibit mitosis. According to our results cytotoxicity of test solutions decreases in the following order: Cu > or = Zn > Ag > or = Fe. Solution of Mn-containing nanoparticles revealed physiological activity according to root growth reaction.
authors.forename: Ie O
authors.initials: IeO
authors.lastname: Konotop
authors.forename: M S
authors.initials: MS
authors.lastname: Kovalenko
authors.forename: V Z
authors.initials: VZ
authors.lastname: Ulynets'
authors.forename: A O
authors.initials: AO
authors.lastname: Meleshko
authors.forename: L M
authors.initials: LM
authors.lastname: Batsmanova
authors.forename: N Iu
authors.initials: NIu
authors.lastname: Taran
mesh_terms: D001692:Biological Transport; D049109:Cell Proliferation / Q000187:drug effects; D003102:Colloids; D003300:Copper / Q000737:chemistry / Q000633:toxicity*; D007501:Iron / Q000737:chemistry / Q000633:toxicity*; D008345:Manganese / Q000737:chemistry / Q000494:pharmacology; D018519:Meristem / Q000187:drug effects* / Q000254:growth & development / Q000648:ultrastructure; D053768:Metal Nanoparticles / Q000737:chemistry / Q000633:toxicity*; D008938:Mitosis / Q000187:drug effects; D008940:Mitotic Index; D019697:Onions / Q000187:drug effects* / Q000254:growth & development / Q000648:ultrastructure; D018517:Plant Roots / Q000187:drug effects* / Q000254:growth & development / Q000648:ultrastructure; D012834:Silver / Q000737:chemistry / Q000633:toxicity*; D015032:Zinc / Q000737:chemistry / Q000633:toxicity*
chemical_list: D003102:Colloids; D012834:Silver; D008345:Manganese; D003300:Copper; D007501:Iron; D015032:Zinc