title: Bile acids are new products of a marine bacterium, Myroides sp. strain SM1.
abstract: Strain SM1 was isolated as a biosurfactant-producing microorganism from seawater and presumptively identified as Myroides sp., based on morphology, biochemical characteristics and 16S rDNA sequence. The strain produced surface-active compounds in marine broth, which were purified, using emulsification activity for n-hexadecane as an indicator. The purified compounds were identified by thin-layer chromatography, (1)H- and (13)C-NMR spectra and fast atom bombardment mass spectrometry as cholic acid, deoxycholic acid and their glycine conjugates. Type strains of the genus Myroides, M. odoratus JCM7458 and M. odoramitimus JCM7460, also produced these compounds. Myroides sp. strain SM1 possessed a biosynthetic route to cholic acid from cholesterol. Thus, bile acids were found as new products of prokaryotic cells, genus Myroides.
authors.affiliation: Laboratory of Applied Microbiology, Research Institute for Bioresources, Okayama University, 2-20-1 Chuo, Kurashiki 710-0046, Japan.
authors.forename: Suppasil
authors.initials: S
authors.lastname: Maneerat
authors.forename: Teruhiko
authors.initials: T
authors.lastname: Nitoda
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kanzaki
authors.forename: Fusako
authors.initials: F
authors.lastname: Kawai
mesh_terms: D001647:Bile Acids and Salts / Q000096:biosynthesis* / Q000737:chemistry / Q000302:isolation & purification; D019826:Cholic Acid / Q000096:biosynthesis / Q000737:chemistry / Q000302:isolation & purification; D002855:Chromatography, Thin Layer; D003840:Deoxycholic Acid / Q000096:biosynthesis / Q000737:chemistry / Q000302:isolation & purification; D041965:Flavobacteriaceae / Q000302:isolation & purification / Q000378:metabolism*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D012623:Seawater / Q000382:microbiology*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013501:Surface-Active Agents / Q000737:chemistry / Q000302:isolation & purification / Q000378:metabolism; D014871:Water Microbiology
chemical_list: D001647:Bile Acids and Salts; D013501:Surface-Active Agents; D003840:Deoxycholic Acid; D019826:Cholic Acid