RRC ID 69066
著者 Godo T, Saki Y, Nojiri Y, Tsujitani M, Sugahara S, Hayashi S, Kamiya H, Ohtani S, Seike Y.
タイトル Geosmin-producing Species of Coelosphaerium (Synechococcales, Cyanobacteria) in Lake Shinji, Japan.
ジャーナル Sci Rep
Abstract In Lake Shinji, Japan, periodic outbreaks of musty odour have occurred since mid-May 2007. Although the substance responsible for the odour was identified as geosmin, the odour-producing organism was unknown. We cultivated an axenic unialgal strain and determined that a species of Coelosphaerium (Synechococcales) was responsible for the production of geosmin in Lake Shinji. Our analysis was conducted using gas chromatography/mass spectrometry to determine the odorous compound. To determine the algae species, it was observed by optical microscopy to describe its morphological characteristics and the polymerase chain reaction was used to characterise the nucleotide sequence of the 16S rRNA gene and the 16S-23S rRNA internal transcribed spacer region. In addition, we explored the relationship between the number of cells of the Coelosphaerium sp. and the concentration of geosmin. In conclusion, geosmin, the cause of the musty odour in Lake Shinji in autumn 2009, was produced by Coelosphaerium sp., and to our knowledge, this is the first report of a geosmin-producing species in the family Coelosphaeriaceae.
巻・号 7
ページ 41928
公開日 2017-2-14
DOI 10.1038/srep41928
PII srep41928
PMID 28195147
PMC PMC5307322
MeSH Cyanobacteria / cytology Cyanobacteria / genetics Cyanobacteria / isolation & purification Cyanobacteria / metabolism* Lakes / microbiology Naphthols / metabolism* RNA, Ribosomal, 16S / genetics RNA, Ribosomal, 23S / genetics
IF 3.998
リソース情報
藻類 NIES-4473