title: Volatile organic compounds derived from 2-keto-acid decarboxylase in Microcystis aeruginosa.
abstract: Volatile organic compounds (VOCs), 2-methyl-1-butanol, 3-methyl-1-butanol and 2-phenylethanol, were detected together with β-cyclocitral from the cyanobacterium Microcystis aeruginosa NIES-843. These alcohols were optimally produced after 35 d of culture, during which nitrate nitrogen in the cultured broth became exhausted. Additionally, these alcohols were definitely produced using the 2-keto-acid decarboxylase (MaKDC) in Microcystis strains. These results suggested that these VOCs from Microcystis are significant for their lifecycle, because these compounds are not produced by any other genus of cyanobacteria. This is the first report of 2-keto-acid decarboxylase producing 3-methyl-1-butanol and 2-phenylethanol by an oxygenic photosynthetic microorganism.
authors.affiliation: Graduate School of Environmental and Human Science and Faculty of Pharmacy, Meijo University, Tempaku, Nagoya, Aichi, 468–8503 Japan. q0891502@ccalumni.meijo-u.ac.jp
authors.forename: Masateru
authors.initials: M
authors.lastname: Hasegawa
authors.forename: Akito
authors.initials: A
authors.lastname: Nishizawa
authors.forename: Kiyomi
authors.initials: K
authors.lastname: Tsuji
authors.forename: Shigenobu
authors.initials: S
authors.lastname: Kimura
authors.forename: Ken-ichi
authors.initials: K
authors.lastname: Harada
mesh_terms: D000447:Aldehydes / Q000737:chemistry; D002262:Carboxy-Lyases / Q000096:biosynthesis / Q000235:genetics / Q000378:metabolism*; D004224:Diterpenes / Q000737:chemistry; D046931:Microcystis / Q000201:enzymology* / Q000235:genetics / Q000378:metabolism; D000439:Pentanols / Q000737:chemistry; D010626:Phenylethyl Alcohol / Q000737:chemistry; D055549:Volatile Organic Compounds / Q000378:metabolism
chemical_list: D000447:Aldehydes; D004224:Diterpenes; D000439:Pentanols; D055549:Volatile Organic Compounds; C516118:beta-cyclocitral; C029683:isopentyl alcohol; D002262:Carboxy-Lyases; D010626:Phenylethyl Alcohol