title: 1,2-Dehydrolactarolide A, a new plant growth regulatory lactarane sesquiterpene from Lactarius vellereus.
abstract: A new lactarane sesquiterpene, 1,2-dehydrolactarolide A (1), together with lactarorufin A (2), 3-O-ethyllactarolide A (3) and 3-O-ethyllactarolide B (4), was isolated from a mushroom of the Russulaceae family, Lactarius vellereus. Additionally, two lactarane sesquiterpenes, lactarorufin A (2) and lactarolide A (5) were isolated from L. subpiperatus. 1,2-Dehydrolactarolide A (1) showed promotional activity (152% at 3.6 x 10(1) microM) toward radicle elongation in lettuce seedlings.
authors.affiliation: Department of Bioscience and Biotechnology, Faculty of Agriculture, Shinshu University, Kami-ina, Nagano, Japan. kamo274@shinshu-u.ac.jp
authors.forename: Tsunashi
authors.initials: T
authors.lastname: Kamo
authors.forename: Miho
authors.initials: M
authors.lastname: Matsue
authors.forename: Michiko
authors.initials: M
authors.lastname: Kashiwabara
authors.forename: Mitsuru
authors.initials: M
authors.lastname: Hirota
mesh_terms: D000363:Agaricales / Q000378:metabolism*; D007783:Lactones / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D018545:Lactuca / Q000737:chemistry*; D008958:Models, Molecular; D019906:Nuclear Magnetic Resonance, Biomolecular; D009904:Optical Rotation; D010937:Plant Growth Regulators / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: D007783:Lactones; D010937:Plant Growth Regulators; D012717:Sesquiterpenes