Adipokinetic hormone controls lipid metabolism in adults and carbohydrate metabolism in larvae of Manduca sexta

Peptides. Sep-Oct 1990;11(5):1037-40. doi: 10.1016/0196-9781(90)90030-9.

Abstract

The peptide hormone which controls activation of fat body glycogen phosphorylase in starving larvae of Manduca sexta was isolated from larval corpora cardiaca and sequenced by FAB tandem mass spectrometry. It was found to be identical with Manduca AKH. This, together with earlier observations, demonstrates that in M. sexta AKH controls glycogen phosphorylase activation in starving larvae while in adults it controls lipid mobilization during flight. Larval corpora cardiaca contain about 10 times less AKH than the corpora cardiaca of adults. The corpora cardiaca of M. sexta appear to contain only one AKH.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Animals
  • Carbohydrate Metabolism*
  • Enzyme Activation / drug effects
  • Fat Body / drug effects*
  • Insect Hormones / pharmacology*
  • Larva
  • Lipid Metabolism*
  • Moths / drug effects*
  • Moths / growth & development
  • Oligopeptides / pharmacology*
  • Phosphorylases / metabolism
  • Pyrrolidonecarboxylic Acid / analogs & derivatives
  • Starvation / metabolism

Substances

  • Insect Hormones
  • Oligopeptides
  • adipokinetic hormone
  • Phosphorylases
  • Pyrrolidonecarboxylic Acid