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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
environmental science
Prevalence, genomic and metabolic profiles of Acinetobacter and Asaia associated with field-caught Aedes albopictus from Madagascar
FEMS Microbiology Ecology, Volume 83, No. 1, Year 2013
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Description
The presence of cultivable bacteria Acinetobacter and Asaia was recently demonstrated in the mosquito vector Aedes albopictus. However, it is not known how prevalent these bacteria are in field populations. Here, the presence of these bacteria in Ae. albopictus populations from Madagascar was diagnosed by amplification of 16S rRNA gene fragments. Both genera were detected at relatively high frequencies, 46% for Asaia and 74% for Acinetobacter. The prevalence of Acinetobacter correlated significantly with mosquito gender, and the prevalence of Asaia with the interaction between mosquito gender and the sampling site. For each bacterial genus, more male than female mosquitoes were infected. Using pulse field gel electrophoresis, no significant difference in genome size was found between Acinetobacter isolates from mosquitoes compared with free-living Acinetobacter. However, a great diversity was observed in plasmid numbers (from 1 to 12) and sizes (from < 8 to 690 kb). Mosquito isolates utilized fewer substrates than free-living isolates, but some substrates known as blood or plant components were specifically utilized by mosquito isolates. Therefore it is likely that a specific subpopulation of Acinetobacter is selected by Ae. albopictus. Overall, this study emphasizes the need to gain a global view on the bacterial partners in mosquito vectors. © 2012 Federation of European Microbiological Societies.
Authors & Co-Authors
Minard, Guillaume
France, Villeurbanne
Université Claude Bernard Lyon 1
Tran, Florence Hélène
France, Villeurbanne
Université Claude Bernard Lyon 1
Raharimalala, Fara Nantenaina
France, Villeurbanne
Université Claude Bernard Lyon 1
Madagascar, Antananarivo
Département D'entomologie de la Faculté Des Sciences D'antananarivo
Hellard, Eléonore
France, Villeurbanne
Université Claude Bernard Lyon 1
Ravelonandro, Pierre Hervé
Madagascar, Antananarivo
Centre National de Recherches Sur L'environnement
Mavingui, Patrick
France, Villeurbanne
Université Claude Bernard Lyon 1
Valiente Moro, Claire
France, Villeurbanne
Université Claude Bernard Lyon 1
Statistics
Citations: 83
Authors: 7
Affiliations: 3
Identifiers
Doi:
10.1111/j.1574-6941.2012.01455.x
ISSN:
01686496
e-ISSN:
15746941
Research Areas
Genetics And Genomics
Noncommunicable Diseases
Study Design
Cross Sectional Study
Study Locations
Madagascar
Participants Gender
Male
Female