title: Plant-growth inhibitory activity of heliannuol derivatives.
abstract: In addition to (+)-, (-)- and (+/-)-heliannuol E, growth-inhibitory activities of five synthetic chromans and four tetrahydrobenzo[b]oxepins were examined against oat and cress. All heliannuol E isomers exhibited similar biological activities against cress, whereas when tested against oat roots, the unnatural optical isomer (+) showed no inhibitory activity. Four brominated chromans and two tetrahydrobenzo[b]oxepin derivatives also showed apparent inhibition against both cress and oat.
authors.affiliation: Department of Chemistry, Faculty of Science and Technology, Keio University, Hiyoshi 3-14-1, Kohoku-ku, Yokohama 223-8522, Japan.
authors.forename: Fuminao
authors.initials: F
authors.lastname: Doi
authors.forename: Taiga
authors.initials: T
authors.lastname: Ohara
authors.forename: Takahisa
authors.initials: T
authors.lastname: Ogamino
authors.forename: Takeshi
authors.initials: T
authors.lastname: Sugai
authors.forename: Keiko
authors.initials: K
authors.lastname: Higashinakasu
authors.forename: Kosumi
authors.initials: K
authors.lastname: Yamada
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Shigemori
authors.forename: Koji
authors.initials: K
authors.lastname: Hasegawa
authors.forename: Shigeru
authors.initials: S
authors.lastname: Nishiyama
mesh_terms: D018554:Avena / Q000187:drug effects / Q000254:growth & development*; D019086:Bridged Bicyclo Compounds, Heterocyclic / Q000302:isolation & purification / Q000494:pharmacology*; D018548:Cotyledon / Q000187:drug effects / Q000254:growth & development; D035264:Flowers / Q000737:chemistry*; D006368:Helianthus / Q000737:chemistry*; D018546:Hypocotyl / Q000187:drug effects / Q000254:growth & development; D031220:Lepidium sativum / Q000187:drug effects / Q000254:growth & development*; D008968:Molecular Conformation; D015394:Molecular Structure; D010937:Plant Growth Regulators / Q000302:isolation & purification / Q000494:pharmacology*; D018517:Plant Roots / Q000187:drug effects / Q000254:growth & development*; D012717:Sesquiterpenes / Q000302:isolation & purification / Q000494:pharmacology*
chemical_list: D019086:Bridged Bicyclo Compounds, Heterocyclic; D010937:Plant Growth Regulators; D012717:Sesquiterpenes