, Volume 34, Issue 11, pp 1462–1463 | Cite as

Changes in free amino acids and peptides in the haemolymph ofGlossina austeni during the reproductive cycle



The amino acids in the deproteinzed haemolymph ofGlossina austeni females, before and after hydrolysis, have been determined at 12 different times during the 1st 2 pregnancy cycles. Hydrolysis resulted in a large increase in the concentrations of tyrosine, phenylalanine, aspartate and lysine, indicating that these amino acids are present mainly as peptides in the haemolymph. The rate of transfer of the aromatic amino acids to the offspring, based upon the amino acid content of the larval gut, must be exceptionally high and has been estimated to be at least 7.9 μg/h.


Peptide Hydrolysis Aspartate Tyrosine Lysine 
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Copyright information

© Birkhäuser Verlag 1978

Authors and Affiliations

  • S. Tobe
    • 1
  1. 1.Department of ZoologyUniversity of TorontoTorontoCanada

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