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An experimental approach to study the biosynthesis of brominated metabolites by the red algal genus Laurencia

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Title: An experimental approach to study the biosynthesis of brominated metabolites by the red algal genus Laurencia
Authors: Suzuki, Minoru Browse this author
Takahashi, Yoshinori Browse this author
Nakano, Satoru Browse this author
Abe, Tsuyoshi Browse this author
Masuda, Michio Browse this author
Ohnishi, Toshiyuki Browse this author
Noya, Yoichi Browse this author
Seki, Koh-ichi Browse this author
Keywords: Laurencia sp.
Rhodomelaceae
Brominated metabolites
Biosynthesis
82Br-compounds
TLC-ARLG method
Issue Date: Jul-2009
Publisher: Elsevier Ltd.
Journal Title: Phytochemistry
Volume: 70
Issue: 11-12
Start Page: 1410
End Page: 1415
Publisher DOI: 10.1016/j.phytochem.2009.07.038
PMID: 19733868
Abstract: The production of labeled brominated metabolites with radioactive 82Br in Laurencia species was investigated as part of a study of the biosynthesis of halogenated metabolites from species belonging to the red algal genus Laurencia (Rhodomelaceae, Ceramiales). Radiobromide [82Br], thin-layer chromatography (TLC), and TLC-autoradioluminography (ARLG) were used. When cultured in artificial seawater medium (ASP12NTA including Na82Br) under 16:8 h light:dark (LD) illumination cycles for 24 h, each of the strains of Laurencia, Laurencia japonensis Abe et Masuda, Laurencia nipponica Yamada (laurencin-producing race and laureatin-producing race), and Laurencia okamurae Yamada, produced species- (or race-) specific 82Br-containing metabolites. In the case of the laurencin-producing race of L. nipponica, laurencin and deacetyllaurencin were found to be produced in approximately 1:1 ratio, though laurencin is the major metabolite in the wild sample. Furthermore, when cultured in the dark, the production rates of brominated metabolites in Laurencia spp. were found to be diminished. The present study strongly indicates that the use of radiobromine [82Br] in combination with the TLC-ARLG method is an effective approach for investigating the biosynthesis of brominated metabolites in Laurencia.
Type: article (author version)
URI: http://hdl.handle.net/2115/42544
Appears in Collections:アイソトープ総合センター (Central Institute of Isotope Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 関 興一

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