Adaptative Responses of Anopheles gambiae in Crowding Larvae Conditions in Laboratory

Cationic pathway of pH regulation in larvae of Anopheles gambiae.

Anopheles gambiae larvae (Diptera: Culicidae) live in freshwater with low Na(+) concentrations yet they use Na(+) for alkalinization of the alimentary canal, for electrophoretic amino acid uptake and for nerve function. The metabolic pathway by which larvae accomplish these functions has anionic and cationic components that interact and allow the larva to conserve Na(+) while excreting H(+) and...

Unexpected High Losses of Anopheles gambiae Larvae Due to Rainfall

BACKGROUND Immature stages of the malaria mosquito Anopheles gambiae experience high mortality, but its cause is poorly understood. Here we study the impact of rainfall, one of the abiotic factors to which the immatures are frequently exposed, on their mortality. METHODOLOGY/PRINCIPAL FINDINGS We show that rainfall significantly affected larval mosquitoes by flushing them out of their aquatic...

Interspecies predation between Anopheles gambiae s.s. and Culex quinquefasciatus larvae.

Interaction of aquatic stages of coexisting mosquito species may have significant influence on resulting adult mosquito populations. We used two coexisting species, Anopheles gambiae s.s. and Culex quinquefasciatus to investigate whether third instars of one species consumed first instars of the other. First instars of one species were readily consumed by a third instar of the other species irr...

Chrysosporium tropicum efficacy against Anopheles stephensi larvae in the laboratory.

The keratinophilic soil fungus Chrysosporium tropicum was evaluated as a biological control agent against Anopheles stephensi larvae in the laboratory. Culture filtrates of C. tropicum were found to be toxic to An. stephensi larvae at various concentrations. The ranges of the 50% lethal concentration (LC50) values of fungal filtrates were 16.60-17.78, 12.02-12.88, and 34.67-35.48 microl/ml agai...

Proteomics of Anopheles gambiae