Changes in element composition along the spinning duct in a Nephila spider

  title={Changes in element composition along the spinning duct in a Nephila spider},
  author={D. Knight and F. Vollrath},
  • D. Knight, F. Vollrath
  • Published 2001
  • Chemistry, Medicine
  • Naturwissenschaften
  • Abstract. The silk gland of the golden orb spider Nephila edulis connects to the exit spigot through a long S-shaped duct that assists in the formation of the thread. Previous evidence suggests that the epithelium of the distal (last) part of the duct is specialized for ion transport and that a proton pump is involved in this process. Here, we present evidence from SEM (scanning electron microscope)-EDAX (energy dispersive X-ray) microanalysis of rapidly frozen material maintained at… CONTINUE READING
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