Peritrophic membrane formation and cellular turnover in the midgut of Culiseta melanura (Diptera: Culicidae).

Scott Weaver, T. W. Scott

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Midguts of the mosquito Culiseta melanura (Coquillett) were examined by light and electron microscopy at varying intervals after blood feeding. Peritrophic membrane deposition first appeared 6 h after engorgement as a thin, electron-translucent band adjacent to epithelial cells throughout the abdominal midgut and reached maximum thickness at 12 h. Cell loss was apparently low in the abdominal midgut, with occasional cellular debris detected in the lumen 3-5 d after engorgement. Sloughing of cytoplasmic dropletlike evaginations, devoid of organelles, occurred infrequently in the abdominal midgut between 5 and 7 d after feeding. In contrast, cellular and cytoplasmic loss occurred continuously in the thoracic midgut. Epithelial cell replacement and regenerative cell mitosis were not detected in the abdominal or thoracic midgut.

Original languageEnglish (US)
Pages (from-to)864-873
Number of pages10
JournalJournal of Medical Entomology
Volume27
Issue number5
StatePublished - Sep 1990
Externally publishedYes

Fingerprint

Culiseta melanura
peritrophic membrane
Culicidae
midgut
Diptera
Thorax
Epithelial Cells
Membranes
Mitosis
Organelles
engorgement
Electron Microscopy
chest
Electrons
Light
epithelial cells
mitosis
organelles
light microscopy
electron microscopy

ASJC Scopus subject areas

  • Insect Science

Cite this

Peritrophic membrane formation and cellular turnover in the midgut of Culiseta melanura (Diptera : Culicidae). / Weaver, Scott; Scott, T. W.

In: Journal of Medical Entomology, Vol. 27, No. 5, 09.1990, p. 864-873.

Research output: Contribution to journalArticle

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