ArticleScientific reports2023
Resistance to the larvicide temephos and altered egg and larval surfaces characterize salinity-tolerant Aedes aegypti.
Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 17 citations in OpenAlex.
- Investigating genetic differentiation between brackish and fresh water collections of the arboviral vector Aedes aegypti.Parasites & vectors · 2026Article
- Genome Structural Variants Shape Adaptive Success of an Invasive Urban Malaria Vector Anopheles stephensi.Molecular biology and evolution · 2025Article
- Characterization of the transcriptional cellular response in midgut tissue of temephos-resistant Aedes aegypti larvae.Parasites & vectors · 2025Article
- Development of an Eco-Friendly Nanogel IncorporatingPharmaceutics · 2024Article
- Predatory Potential of Nymphal Odonates onInsects · 2024Article
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Authors and funding
8 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Aedes aegypti, the principal global vector of arboviral diseases and previously considered to oviposit and undergo preimaginal development only in fresh water, has recently been shown to be capable of developing in coastal brackish water containing up to 15 g/L salt. We investigated surface changes in eggs and larval cuticles by atomic force and scanning electron microscopy, and larval susceptibility to two widely-used larvicides, temephos and Bacillus thuringiensis, in brackish water-adapted Ae. aegypti. Compared to freshwater forms, salinity-tolerant Ae. aegypti had rougher and less elastic egg surfaces, eggs that hatched better in brackish water, rougher larval cuticle surfaces, and larvae more resistant to the organophosphate insecticide temephos. Larval cuticle and egg surface changes in salinity-tolerant Ae. aegypti are proposed to respectively contribute to the increased temephos resistance and egg hatchability in brackish water. The findings highlight the importance of extending Aedes vector larval source reduction efforts to brackish water habitats and monitoring the efficacy of larvicides in coastal areas worldwide.
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