title: Citral induces auxin and ethylene-mediated malformations and arrests cell division in Arabidopsis thaliana roots.
abstract: Citral is a linear monoterpene which is present, as a volatile component, in the essential oil of several different aromatic plants. Previous studies have demonstrated the ability of citral to alter the mitotic microtubules of plant cells, especially at low concentrations. The changes to the microtubules may be due to the compound acting directly on the treated root and coleoptile cells or to indirect action through certain phytohormones. This study, performed in Arabidopsis thaliana, analysed the short-term effects of citral on the auxin content and mitotic cells, and the long-term effects of these alterations on root development and ethylene levels. The results of this study show that citral alters auxin content and cell division and has a strong long-term disorganising effect on cell ultra-structure in A. thaliana seedlings. Its effects on cell division, the thickening of the cell wall, the reduction in intercellular communication, and the absence of root hairs confirm that citral is a strong phytotoxic compound, which has persistent effects on root development.
authors: Department of Plant Biology and Soil Science, University of Vigo, Campus Lagoas-Marcosende s/n, 36310 Vigo, Spain.
authors: E
authors: E
authors: Graña
authors: T
authors: T
authors: Sotelo
authors: C
authors: C
authors: Díaz-Tielas
authors: F
authors: F
authors: Araniti
authors: U
authors: U
authors: Krasuska
authors: R
authors: R
authors: Bogatek
authors: M J
authors: MJ
authors: Reigosa
authors: A M
authors: AM
authors: Sánchez-Moreiras
mesh_terms: D000080462:Acyclic Monoterpenes; D017360:Arabidopsis / Q000166:cytology / Q000187:drug effects / Q000254:growth & development*; D002455:Cell Division; D005030:Ethylenes / Q000378:metabolism*; D007210:Indoleacetic Acids / Q000378:metabolism*; D039821:Monoterpenes / Q000378:metabolism*; D010937:Plant Growth Regulators / Q000378:metabolism*; D018517:Plant Roots / Q000166:cytology / Q000187:drug effects / Q000254:growth & development*; D036226:Seedlings / Q000166:cytology / Q000187:drug effects / Q000254:growth & development
chemical_list: D000080462:Acyclic Monoterpenes; D005030:Ethylenes; D007210:Indoleacetic Acids; D039821:Monoterpenes; D010937:Plant Growth Regulators; C036216:ethylene; C007076:citral
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