, Volume 99, Issue 1, pp 3–10

A novel marine silk

  • Katrin Kronenberger
  • Cedric Dicko
  • Fritz Vollrath
Original Paper

DOI: 10.1007/s00114-011-0853-5

Cite this article as:
Kronenberger, K., Dicko, C. & Vollrath, F. Naturwissenschaften (2012) 99: 3. doi:10.1007/s00114-011-0853-5


The discovery of a novel silk production system in a marine amphipod provides insights into the wider potential of natural silks. The tube-building corophioid amphipod Crassicorophium bonellii produces from its legs fibrous, adhesive underwater threads that combine barnacle cement biology with aspects of spider silk thread extrusion spinning. We characterised the filamentous silk as a mixture of mucopolysaccharides and protein deriving from glands representing two distinct types. The carbohydrate and protein silk secretion is dominated by complex β-sheet structures and a high content of charged amino acid residues. The filamentous secretion product exits the gland through a pore near the tip of the secretory leg after having moved through a duct, which subdivides into several small ductules all terminating in a spindle-shaped chamber. This chamber communicates with the exterior and may be considered the silk reservoir and processing/mixing space, in which the silk is mechanically and potentially chemically altered and becomes fibrous. We assert that further study of this probably independently evolved, marine arthropod silk processing and secretion system can provide not only important insights into the more complex arachnid and insect silks but also into crustacean adhesion cements.


Marine amphipodCrassicorophium bonelliiSilk glandExtrusion spinningBarnacleSpider

Supplementary material

114_2011_853_MOESM1_ESM.pdf (141 kb)
ESM 1(PDF 140 kb)
114_2011_853_MOESM2_ESM.pdf (38 kb)
ESM 2(PDF 38.3 kb)
114_2011_853_MOESM3_ESM.pdf (61 kb)
ESM 3(PDF 60.7 kb)

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Katrin Kronenberger
    • 1
    • 2
  • Cedric Dicko
    • 1
    • 3
  • Fritz Vollrath
    • 1
  1. 1.Oxford Silk Group, Department of ZoologyUniversity of OxfordOxfordUK
  2. 2.EM and Imaging Resource Facility, St. George’sUniversity of LondonLondonUK
  3. 3.Pure and Applied BiochemistryChemical Centre, Lund UniversityLundSweden