Document Detail

Respiratory gas exchange in the flea Xenopsylla conformis (Siphonaptera: Pulicidae).
MedLine Citation:
PMID:  11580048     Owner:  NLM     Status:  MEDLINE    
Respiratory gas exchange was measured in various developmental stages of the flea Xenopsylla conformis mycerini (Rothschild, 1904) originating from the central Negev in Israel. Gas exchange in fleas was measured using a flow-through respirometry system that monitored CO2 emission. Lowest metabolic rates were found in the cocooned stage, which included prepupae, early stage pupae, late stage pupae, and preemerged adults. Newly emerged adults and feeding larvae had metabolic rates 2.5-3.0 times greater than those for the cocooned stages. Highest rates of gas exchange were found in feeding fleas. The low metabolic rates of the cocooned stages is thought to contribute to their ability to survive for longer periods than free-living larvae and adults.
L J Fielden; B Krasnov; I Khokhlova
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Journal of medical entomology     Volume:  38     ISSN:  0022-2585     ISO Abbreviation:  J. Med. Entomol.     Publication Date:  2001 Sep 
Date Detail:
Created Date:  2001-10-02     Completed Date:  2001-12-07     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0375400     Medline TA:  J Med Entomol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  735-9     Citation Subset:  IM    
Science Division, Truman State University, Kirksville, MO 63501, USA.
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MeSH Terms
Fleas / growth & development,  metabolism,  physiology*
Life Cycle Stages
Pulmonary Gas Exchange / physiology*

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

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