Application of liposome and stable isotope tracer techniques to study polyunsaturated fatty acid biosynthesis in marine zooplankton
Bell, Michael V.; Dick, James R.; Anderson, Thomas R.; Pond, David W.. 2007 Application of liposome and stable isotope tracer techniques to study polyunsaturated fatty acid biosynthesis in marine zooplankton. Journal of Plankton Research, 29 (5). 417-422. 10.1093/plankt/fbm025Full text not available from this repository.
We investigated the ability of four species of marine zooplankton to synthesize polyunsaturated fatty acids (PUFAs) during pulse-chase tracer experiments. Liposomes containing a deuterium labelled precursor fatty acid, D5-18:3n-3, were fed to female Calanus finmarchicus, Calanoides acutus, Drepanopus forcipatus and calyptopus larvae of Euphausia superba during ship-board experiments. Although all species of zooplankton readily ingested the liposomes and incorporated the D5-18:3n-3 tracer into their somatic lipid pool, only negligible products of elongation and desaturation; D5-18:4n-3, D5-20:5n-3 and D5-22:6n-3 were detected after 96 h incubations. We conclude that the four species of marine zooplankton examined here are unable to synthesize PUFA at ecologically significant rates and certainly not in amounts sufficient to support growth and reproductive processes.
|Programmes:||BAS Programmes > Global Science in the Antarctic Context (2005-2009) > DISCOVERY 2010 - Integrating Southern Ocean Ecosystems into the Earth System|
|NORA Subject Terms:||Biology and Microbiology
|Date made live:||06 Feb 2009 17:11|
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