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09:23
Maintaining Aedes aegypti Mosquitoes Infected with Wolbachia
Published on: August 14, 2017
Chikungunya-Wolbachia interplay in Aedes albopictus
P Tortosa1, A Courtiol, S Moutailler
1Université Montpellierz 2, France.
Insect Molecular Biology
|January 10, 2009
Summary
Chikungunya virus infection slightly reduces Wolbachia bacteria in mosquitoes. The WO bacteriophage, sheltered by Wolbachia, is not affected by Chikungunya virus replication.
Area of Science:
- Medical entomology
- Virology
- Microbiology
Background:
- Aedes albopictus mosquitoes are major vectors of Chikungunya virus (CHIKV).
- These mosquitoes harbor two Wolbachia strains (wAlbA, wAlbB), potential biocontrol agents.
- Understanding host-symbiont-virus interactions is crucial for vector control.
Purpose of the Study:
- To quantify Wolbachia densities in CHIKV-infected Aedes albopictus.
- To investigate the impact of CHIKV replication on the WO bacteriophage within Wolbachia.
Main Methods:
- Development of a quantitative PCR assay for Wolbachia.
- Infection of mosquitoes with CHIKV.
- Analysis of WO bacteriophage lifecycle in relation to CHIKV replication.
Main Results:
- Wolbachia densities were observed to decrease slightly in CHIKV-infected female mosquitoes.
- The WO bacteriophage is sheltered by the wAlbB Wolbachia strain, likely as a single copy.
- CHIKV replication did not induce the WO bacteriophage to enter its lytic cycle.
Conclusions:
- CHIKV infection has a minor impact on Wolbachia density in Aedes albopictus.
- The wAlbB strain provides a stable environment for the WO bacteriophage, unaffected by CHIKV.
- These findings inform the use of Wolbachia for Chikungunya vector control.
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