Vitellogenin synthesis in female larvae of the gypsy moth, Lymantria dispar (L.): suppression by juvenile hormone

Howard W. Fescemyer, Edward P. Masler, Robin E. Davis, Thomas J. Kelly

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

1. 1. Fat body from feeding-phase, last instar gypsy moth females incorporates l-[35S]methionine in vitro into two vitellogenins with the same molecular masses (165 and 180 kDa) as the apo-vitellogenins found in teh hemolymph and the apo-vitellins in teh eggs. 2. 2. Both apo-vitellogenins are observed in the medium of fat body cultures, but only the 180 kDa apo-vitellogenin is observed in extracts of cultured tissue. 3. 3. Synthesis and accumulation of the apo-vitellogenins are suppressed in a dose-dependent manner by topical treatment with the juvenile hormone analog, methoprene, prior to day 4. 4. 4. This suppression suggests that a declining juvenile hormone titre is involved in the initiation of vitellogenin synthesis.

Original languageEnglish (US)
Pages (from-to)533-542
Number of pages10
JournalComparative Biochemistry and Physiology -- Part B: Biochemistry and
Volume103
Issue number3
DOIs
StatePublished - Nov 1992

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Physiology
  • Molecular Biology

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