Aldehyde-encapsulating liposomes impair marine grazer survivorship

The Journal of Experimental Biology
Isabella ButtinoAntonio Miralto

Abstract

In the last decade, there has been an increased awareness that secondary metabolites produced by marine diatoms negatively impact the reproductive success of their principal predators, the copepods. Several oxylipins, products of the enzymatic oxidation of fatty acids, are produced when these unicellular algae are damaged, as occurs during grazing. In the past, the dinoflagellate Prorocentrum minimum, which does not produce the oxylipin 2-trans,4-trans-decadienal (DD), has been used as a live carrier to calculate daily ingestion rates of this molecule by copepod crustaceans. However, since the interaction between oxylipins and live carriers is unknown, the question as to how much and for how long ingestion of these molecules affects copepod reproduction remains a critical point to understanding the functional role of such compounds at sea. In the investigation presented here we used giant liposomes ( approximately 7 mum) as a delivery system for the oxylipin DD, prepared in the same size range as copepod food and containing known amounts of DD. The aim of this work was to relate the ingestion of DD to the reproductive failure of the copepods Temora stylifera and Calanus helgolandicus. Liposomes were very stable over time and af...Continue Reading

References

Aug 1, 1965·Journal of Molecular Biology·A D BanghamJ C Watkins
Aug 27, 2003·The Journal of Experimental Biology·Giovanna RomanoAntonio Miralto
Jul 28, 2004·The Journal of Experimental Biology·Sven AdolphAlga Zuccaro
Dec 18, 2004·Marine Environmental Research·Gary S CaldwellMatthew G Bentley
May 11, 2005·Chembiochem : a European Journal of Chemical Biology·Georg Pohnert
Feb 17, 2006·The Journal of Experimental Biology·Isabella ButtinoAntonio Miralto
Sep 22, 2007·Chembiochem : a European Journal of Chemical Biology·Angelo FontanaAdrianna Ianora
Dec 1, 2000·Angewandte Chemie·Georg Pohnert

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Citations

Nov 20, 2009·Ecotoxicology·Adrianna Ianora, Antonio Miralto
Jan 26, 2010·Marine Drugs·Francesco Silvestre, Elisabetta Tosti
Sep 18, 2015·Marine Drugs·Ida OreficeGiovanna Romano
Sep 17, 2009·The New Phytologist·Joséphine Leflaive, Loïc Ten-Hage
Apr 9, 2016·Journal of Applied Phycology·Richard A IngebrigtsenHans Christian Eilertsen

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