title: The chemical composition of Microbiota decussata.
abstract: From the leaves of Microbiota decussata (Cupressaceae) biflavones: cupressuflavone, amentoflavone and 7-O-methylamentoflavone were isolated and identified. The amount of cupressuflavone in Microbiota decussata and xCupressocyparis leylandii (Leyland cypress) (Cupressaceae) was determined by HPLC (1.82% and 0.83%, respectively). The chemical composition of essential oils from bark and leaves of Microbiota decussata was established by GC-MS (GC-FID) analysis. As a major component thujopsene (39.2% and 45.9%, respectively) was identified. Wiridiflorol (3.0%) and tau-muurolol (0.3%) were present only in leaves but globulol (1.5%) exclusively in bark. The content of essential oils in M. decussata was high--5.4% in bark and 12.6% in leaves. The essential oils from M. decussata and xC. leylandii were bioassayed towards different fungi of the genus Fusarium. Leyland cypress essential oil at 2% concentration fully inhibited the growth of all fungi.
authors.affiliation: Department of Pharmacognosy, Medical University of Gdańsk, Gen. J. Hallera 107 str., 80-416 Gdańsk, Poland. krauze@farmacja.amg.gda.pl
authors.forename: Mirosława
authors.initials: M
authors.lastname: Krauze-Baranowska
authors.forename: Marek
authors.initials: M
authors.lastname: Mardarowicz
authors.forename: Marian
authors.initials: M
authors.lastname: Wiwart
mesh_terms: D000935:Antifungal Agents / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D002849:Chromatography, Gas; D029624:Ferns / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D005670:Fusarium / Q000187:drug effects / Q000302:isolation & purification; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008826:Microbial Sensitivity Tests; D009181:Mycoses / Q000145:classification; D009822:Oils, Volatile / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D035261:Plant Components, Aerial / Q000737:chemistry
chemical_list: D000935:Antifungal Agents; D005419:Flavonoids; D009822:Oils, Volatile