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- W2091293390 abstract "AB Aquatic Biology Contact the journal Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections AB 2:131-141 (2008) - DOI: https://doi.org/10.3354/ab00042 Copepod feeding stimulates bacterioplankton activities in a low phosphorus system Josefin Titelman1,*,**, Lasse Riemann2,**, Karin Holmfeldt2, Trygve Nilsen3 1Department of Marine Ecology, University of Göteborg, Kristineberg 566, 450 34 Fiskebäckskil, Sweden 2Department of Natural Sciences, Kalmar University, 391 82 Kalmar, Sweden 3Department of Mathematics, University of Bergen, PO Box 7800, 5020 Bergen, Norway *Email: josefin.titelman@marecol.gu.se**J.T. and L.R. contributed equally to this article ABSTRACT: Zooplankton sloppy feeding releases high-quality dissolved organic matter, which is readily used by microbes. We hypothesized that in phosphorus (P) limited environments, released dissolved DNA may be a particularly important source of P for bacteria. In an incubation experiment with water from the Bothnian Bay, Sweden, we investigated the short-term effect of copepod feeding activity on bacterial production, DNA uptake and phosphatase activity. Consistent patterns in bacterial activity measures suggested that copepod feeding activity stimulated phosphatase activity, DNA uptake and production. The P taken up as dissolved DNA exceeded cellular P requirements. We speculate that bacterioplankton cells in the Bothnian Bay store excess P intracellularly during times of extensive sloppy feeding, which may then subsequently be utilized to prevent P limitation of growth. KEY WORDS: Bacteria · Copepod · DNA uptake · Phosphorus · Alkaline phosphatase · Dissolved DNA · Bothnian Bay Full text in pdf format PreviousNextCite this article as: Titelman J, Riemann L, Holmfeldt K, Nilsen T (2008) Copepod feeding stimulates bacterioplankton activities in a low phosphorus system. Aquat Biol 2:131-141. https://doi.org/10.3354/ab00042Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in AB Vol. 2, No. 2. Online publication date: May 13, 2008 Print ISSN: 1864-7782; Online ISSN: 1864-7790 Copyright © 2008 Inter-Research." @default.
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- W2091293390 title "Copepod feeding stimulates bacterioplankton activities in a low phosphorus system" @default.
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