title: Dissolved organic nitrogen hydrolysis rates in axenic cultures of Aureococcus anophagefferens (Pelagophyceae): comparison with heterotrophic bacteria.
abstract: The marine autotroph Aureococcus anophagefferens (Pelagophyceae) was rendered axenic in order to investigate hydrolysis rates of peptides, chitobiose, acetamide, and urea as indicators of the ability to support growth on dissolved organic nitrogen. Specific rates of hydrolysis varied between 8 and 700% of rates observed in associated heterotrophic marine bacteria.
authors.affiliation: Department of Marine Biogeochemistry, Institut für Meereskunde an der Universität Kiel, Kiel, Germany. gberg@ifm.uni-kiel.de
authors.forename: Gry Mine
authors.initials: GM
authors.lastname: Berg
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Repeta
authors.forename: Julie
authors.initials: J
authors.lastname: Laroche
mesh_terms: D000900:Anti-Bacterial Agents; D001419:Bacteria / Q000145:classification / Q000235:genetics / Q000254:growth & development*; D003470:Culture Media / Q000737:chemistry; D004275:DNA, Ribosomal / Q000032:analysis; D006868:Hydrolysis; D008969:Molecular Sequence Data; D009584:Nitrogen / Q000378:metabolism*; D009930:Organic Chemicals; D000459:Phaeophyceae / Q000254:growth & development* / Q000378:metabolism; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012623:Seawater / Q000382:microbiology*
chemical_list: D000900:Anti-Bacterial Agents; D003470:Culture Media; D004275:DNA, Ribosomal; D009930:Organic Chemicals; D012336:RNA, Ribosomal, 16S; D009584:Nitrogen