title: [Metabolism of nicotinic acid in plant cell suspension cultures, IV: Occurrence and metabolism of nicotinic acid N-alpha-arabinoside (author's transl)].
abstract: Application of nicotinic acid to cell suspension cultures of Petroselinum hortense Hoffm., Daucus carota, Nicotiana tabacum and Nicotiana glauca leads to the formation of the recently isolated[2] nicotinic acid N-alpha-L-arabinoside. In these cell cultures the arabinoside is a metabolically active compound; the nicotinic acid moiety is used for NAD synthesis and nicotinic acid degradation involving decarboxylation and ring fission. N-Methylnicotinic acid (trigonelline) and nicotinic acid N-alpha-L-arabinoside occur alternatively in plant cell suspension cultures, but seem to fulfil the same function as a reserve form for nicotinic acid. Catabolism of nicotinic acid in parsley cell suspension cultures does not involve 6-hydroxynicotinic acid as an intermediate.
mesh_terms: D001089:Arabinose / Q000378:metabolism; D002245:Carbon Dioxide / Q000378:metabolism; D002478:Cells, Cultured; D007700:Kinetics; D009243:NAD / Q000378:metabolism; D009536:Niacinamide / Q000378:metabolism; D009539:Nicotinic Acids / Q000378:metabolism*; D009705:Nucleosides / Q000096:biosynthesis*; D010944:Plants / Q000378:metabolism*
chemical_list: D009539:Nicotinic Acids; D009705:Nucleosides; D009243:NAD; D002245:Carbon Dioxide; D009536:Niacinamide; C013149:nicotinic acid N-alpha-arabinoside; D001089:Arabinose
vernacular_title: Stoffwechsel von Nicotinsäure in pflanzlichen Zellsuspensionskulturen, IV Vorkommen und Stoffwechsel von Nicotinsäure-N-alpha-arabinosid