Document Detail


Re-introducing bacteria in mosquitoes--a method for determination of mosquito feeding preferences based on coloured sugar solutions.
MedLine Citation:
PMID:  16999928     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In this study, sugar-feeding was investigated as a possible means of re-introducing bacteria into mosquito midguts with the aim of identifying bacteria that are suitable for creating paratransgenic mosquitoes. In a paratransgenic approach, bacteria are utilised to deliver effector molecules capable of inhibiting pathogen development in the midgut of the vector. To determine if mosquitoes discriminate between sterile sugar solutions and sugar solutions with bacteria, a method for screening mosquito feeding preferences was developed. This method was tested for Aedes aegypti, Anopheles arabiensis and An. gambiae s.s. mosquitoes and is based on a dual-choice test of solutions labelled with food dyes. Three different tests (dye/colour detection, sugar detection and sugar-concentration detection) were performed to evaluate the method, after which bacteria previously isolated from mosquitoes were used in the experiments. It was shown that mosquitoes do not discriminate between sugar solutions with or without these bacteria indicating that sugar-feeding is a possible means to introduce bacteria into mosquitoes. Furthermore, two different setups of the method were used, enabling us to differentiate between tactile/taste and olfactory responses. The method described in this paper is easy to use, cost-effective and allows broad screening of mosquito sugar-feeding preferences.
Authors:
J M Lindh; O Terenius; K Eriksson-Gonzales; B G J Knols; I Faye
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2006-09-26
Journal Detail:
Title:  Acta tropica     Volume:  99     ISSN:  0001-706X     ISO Abbreviation:  Acta Trop.     Publication Date:  2006 Oct 
Date Detail:
Created Date:  2006-11-07     Completed Date:  2007-01-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370374     Medline TA:  Acta Trop     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  173-83     Citation Subset:  IM    
Affiliation:
Department of Genetics, Microbiology and Toxicology, Stockholm University, 106 91 Stockholm, Sweden.
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MeSH Terms
Descriptor/Qualifier:
Aedes / microbiology,  physiology*
Age Factors
Animals
Animals, Genetically Modified
Anopheles / microbiology,  physiology*
Color
Feeding Behavior*
Female
Insect Vectors / microbiology,  physiology*
Male
Sex Factors
Statistics, Nonparametric

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


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