Document Detail

Ultrastructure and morphology of midgut visceral muscle in early pupal Aedes aegypti mosquitoes.
MedLine Citation:
PMID:  18160088     Owner:  NLM     Status:  MEDLINE    
These studies focus on the pupal Aedes aegypti midgut muscularis for the first 26 h following larval-pupal transition. The midgut muscularis of Ae. aegypti pupae during this first half of the pupal stadium is a grid of both circularly and longitudinally oriented muscle bands, arranged in a manner resembling that of the larvae. While many muscle bands exhibit signs of degeneration during the time period studied, not all bands degrade, nor is this degradation simultaneous. Band deterioration involves destruction of internal elements while the muscle fiber plasma membrane remains intact. Deterioration of contractile elements may involve proteosome-like structures and associated enzymes. Many features of the larval muscularis including cruciform cells, bifurcating circular bands, and bifurcating longitudinal bands of muscle are retained during the time period investigated. Neuromuscular junctions along some muscle bands are retained through at least 16 h into the pupal stadium. The selective nature of muscle fiber degradation, coupled with the retention of larval features and neural input, may allow for limited functionality of the muscularis during metamorphosis. Evidence of sexual dimorphism in the midgut muscularis of male and female Ae. aegypti pupae was not observed during the time period studied.
E P Bernick; S B Moffett; D F Moffett
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2007-12-26
Journal Detail:
Title:  Tissue & cell     Volume:  40     ISSN:  0040-8166     ISO Abbreviation:  Tissue Cell     Publication Date:  2008 Apr 
Date Detail:
Created Date:  2008-03-03     Completed Date:  2008-05-30     Revised Date:  2014-09-10    
Medline Journal Info:
Nlm Unique ID:  0214745     Medline TA:  Tissue Cell     Country:  Scotland    
Other Details:
Languages:  eng     Pagination:  127-41     Citation Subset:  IM    
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MeSH Terms
Aedes / growth & development*,  ultrastructure*
Muscle Development*
Muscle, Smooth / growth & development*,  ultrastructure*
Pupa / ultrastructure
Grant Support
R01 AI063463/AI/NIAID NIH HHS; R01 AI063463-03/AI/NIAID NIH HHS; R01-AI06346301A2/AI/NIAID NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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