title: [Molecular cloning and expression profile of a jasmonate biosynthetic pathway gene allene oxide cyclase from Hyoscyamus niger].
abstract: Hyoscyamus niger L. is a medicinal plant which produces a class of jasmonate-responsive pharmaceutical secondary metabolites named as tropane alkaloids. As a family of signaling phytohormones, jasmonates play significant roles in the biosynthesis of many plant secondary metabolites. In jasmonate biosynthetic pathway of plants, allene oxide cyclase (AOC, [...] EC 5.3.99.6 [...]) catalyzes the most important step. Here we cloned a cDNA from H. niger, named HnAOC (GenBank accession: AY708383), which was 1044 bp long, with a 747 bp open reading frame (ORF) encoding a polypeptide of 248 amino acid residues. Southern blot analysis indicated that it was a multi-copy gene. RT-PCR analysis revealed that the expression of HnAOC was regulated by various stresses and elicitors, with methyl-jasmonate showing the most prominent inducement. The characterization of HnAOC would be helpful for improving the production of valuable secondary metabolites by regulating the biosynthesis ofjasmonates.
authors.forename: K
authors.initials: K
authors.lastname: Jiang
authors.forename: Z
authors.initials: Z
authors.lastname: Liao
authors.forename: Y
authors.initials: Y
authors.lastname: Pi
authors.forename: Z
authors.initials: Z
authors.lastname: Huang
authors.forename: R
authors.initials: R
authors.lastname: Hou
authors.forename: Y
authors.initials: Y
authors.lastname: Cao
authors.forename: Q
authors.initials: Q
authors.lastname: Wang
authors.forename: Z
authors.initials: Z
authors.lastname: Sun
authors.forename: K
authors.initials: K
authors.lastname: Tang
mesh_terms: D000470:Alkaloids / Q000235:genetics / Q000378:metabolism; D001483:Base Sequence; D003001:Cloning, Molecular; D003517:Cyclopentanes / Q000378:metabolism*; D018076:DNA, Complementary / Q000235:genetics; D015971:Gene Expression Regulation, Enzymologic / Q000502:physiology*; D018506:Gene Expression Regulation, Plant / Q000502:physiology*; D032304:Hyoscyamus / Q000201:enzymology* / Q000235:genetics; D019746:Intramolecular Oxidoreductases / Q000096:biosynthesis* / Q000235:genetics; D008969:Molecular Sequence Data; D054883:Oxylipins / Q000378:metabolism*; D010940:Plant Proteins / Q000096:biosynthesis* / Q000235:genetics; D010946:Plants, Medicinal / Q000235:genetics / Q000378:metabolism
chemical_list: D000470:Alkaloids; D003517:Cyclopentanes; D018076:DNA, Complementary; D054883:Oxylipins; D010940:Plant Proteins; C011006:jasmonic acid; D019746:Intramolecular Oxidoreductases; C021377:hydroperoxide isomerase