title: Defense and signalling metabolites of the crucifer Erucastrum canariense: Synchronized abiotic induction of phytoalexins and galacto-oxylipins.
abstract: Erucastrum canariense Webb & Berthel. (Brassicaceae) is a wild crucifer that grows in rocky soils, in salt and water stressed habitats, namely in the Canary Islands and similar environments. Abiotic stress induced by copper chloride triggered formation of a phytoalexin and galacto-oxylipins in E. canariense, whereas wounding induced galacto-oxylipins but not phytoalexins. Analysis of the metabolite profiles of leaves of E. canariense followed by isolation and structure determination afforded the phytoalexin erucalexin, the phytoanticipin indolyl-3-acetonitrile, the galacto-oxylipins arabidopsides A, C, and D, and the oxylipin 12-oxophytodienoic acid. In addition, arabidopsides A and D were also identified in extracts of leaves of Nasturtium officinale R. Br.
authors.affiliation: Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK, S7N 5C9, Canada. Electronic address: s.pedras@usask.ca.
authors.forename: M Soledade C
authors.initials: MSC
authors.lastname: Pedras
authors.affiliation: Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK, S7N 5C9, Canada.
authors.forename: Q Huy
authors.initials: QH
authors.lastname: To
mesh_terms: D000935:Antifungal Agents / Q000737:chemistry / Q000302:isolation & purification*; D019607:Brassicaceae / Q000737:chemistry* / Q000254:growth & development; D002851:Chromatography, High Pressure Liquid; D005231:Fatty Acids, Unsaturated / Q000737:chemistry / Q000378:metabolism; D007211:Indoles / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D031223:Nasturtium / Q000737:chemistry; D019906:Nuclear Magnetic Resonance, Biomolecular; D054883:Oxylipins / Q000378:metabolism*; D018515:Plant Leaves / Q000737:chemistry; D012717:Sesquiterpenes / Q000378:metabolism* / Q000494:pharmacology; D013030:Spain; D013141:Spiro Compounds / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification; D013844:Thiazoles / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification; D013997:Time Factors; D000094162:Phytoalexins
chemical_list: D000935:Antifungal Agents; D005231:Fatty Acids, Unsaturated; D007211:Indoles; D054883:Oxylipins; D012717:Sesquiterpenes; D013141:Spiro Compounds; D013844:Thiazoles; C511235:erucalexin; C025999:12-oxophytodienoic acid; D000094162:Phytoalexins
keywords: Alternaria brassicicola; Arabidopside; Brassicaceae; Crucifer; Erucalexin; Erucastrum canariense; Galacto-oxylipins; Leptosphaeria maculans; Phytoalexins; Sclerotinia sclerotiorum