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Marine Biology

, Volume 153, Issue 6, pp 1165–1171 | Cite as

Epithelial immunity in a marine invertebrate: a cytolytic activity from a cuticular secretion of the American horseshoe crab, Limulus polyphemus

  • John M. HarringtonEmail author
  • Matthias Leippe
  • Peter B. Armstrong
Research Article

Abstract

The cuticle of the American horseshoe crab, Limulus polyphemus, is largely free of the macroscopic epibionts that rapidly colonize most solid surfaces exposed to sea water. Here, we describe a viscous surface secretion that coats the carapace of the horseshoe crab. We report methods for stimulating production of the substance, identify hemolytic and liposome-permeabilizing activities and provide a partial biochemical characterization. We propose that this secretion functions as an anti-fouling agent protecting the chitinized epithelium of the cuticle from colonization by deleterious epibionts.

Keywords

Hemolytic Activity Hemocyte Horseshoe Crab Cytolytic Activity Marine Biological Laboratory 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

This research was supported by grant 0344360 from the National Science Foundation (to P.B.A.) and SFB 617 from the German Research Council (to M.L.). All of the experiments performed in this study comply with the current laws of the United States of America.

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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • John M. Harrington
    • 1
    • 2
    Email author
  • Matthias Leippe
    • 2
    • 3
  • Peter B. Armstrong
    • 1
    • 2
  1. 1.Department of Molecular and Cellular BiologyUniversity of CaliforniaDavisUSA
  2. 2.Marine Biological LaboratoryWoods HoleUSA
  3. 3.Zoological Institute of the University of KielKielGermany

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