A5004627290- Insect Pest Control Strategies
- Research on Leishmaniasis Studies
- Mosquito-borne diseases and control
- Trypanosoma species research and implications
- Malaria Research and Control
- Insect Resistance and Genetics
- Insect and Pesticide Research
- Neurobiology and Insect Physiology Research
- Circadian rhythm and melatonin
- Agriculture and Biological Studies
- Insect Utilization and Effects
- Plant and animal studies
- Insect symbiosis and bacterial influences
- T-cell and B-cell Immunology
- Light effects on plants
- Aquaculture disease management and microbiota
- Insect-Plant Interactions and Control
- Microbial infections and disease research
- Insect behavior and control techniques
Fundação Oswaldo Cruz
2007-2023
Instituto de Biologia do Exército
2017-2020
Background Lutzomyia longipalpis is the primary vector of American visceral leishmaniasis. There strong evidence that L. a species complex, but until recently existence sibling among Brazilian populations was considered controversial issue. In addition, there still no consensus regarding number occurring in this complex. Methodology/Principal Findings Using period, gene controls circadian rhythms and affects interpulse interval periodicity male courtship songs Drosophila melanogaster close...
Abstract Lutzomyia longipalpis (Diptera: Psychodidae: Phlebotominae), the main vector of visceral leishmaniasis in Americas, is a putative species complex. Molecular polymorphism was characterized 266 bp fragment L. homologous to period , ‘speciation gene’ from Drosophila . Samples Brazilian localities Jacobina (BA), Lapinha (MG) and Natal (RN) were analysed data indicate that three populations are highly differentiated, with very low level gene flow between them. These results agreement...
The mosquito Aedes aegypti is the primary vector of different arboviruses and represents a major public health problem. Several Brazilian populations Ae. have developed resistance to temephos, most used organophosphate larvicide. New tools which are less harmful environment safer for humans becoming increasingly important control this insect vector. Spinosad, an aerobic fermentation product soil actinobacteria, has favorable environmental profile. It presents selective insecticide...
Culicidae colonization in laboratory is paramount to conduct studies aiming at a better understanding of mosquitoes' capacity transmit pathogens that cause deadly diseases. Colonization requires female blood feeding, necessary step for maturation female's oocytes. Direct feeding on anesthetized mammals implies number disadvantages when compared artificial feeding. Consequently, laboratories worldwide have been trying -feed mosquitoes artificially order replace direct In this study, we the...
The major histocompatibility complex (MHC) acts as an interface between the immune system and infectious diseases. Accurate characterization genotyping of extremely variable MHC loci are challenging especially without a reference sequence. We designed combination long-range PCR, Illumina short-reads, Oxford Nanopore MinION long-reads approaches to capture genetic variation II DRB locus in Italian population Alpine chamois (Rupicapra rupicapra). utilized PCR generate 9 Kb fragment locus....
Abstract Background Most cases of malaria in Brazil are concentrated the Amazon region. One vector control alternatives recommended by WHO is long-lasting insecticidal net (LLIN). This tool used nine federal states Brazilian Legal Amazon, where LLINs essential for reducing density and disease transmission as they prevent contact between mosquito individual. The objective this study was to evaluate residuality use LLIN insecticides different health regions a city located Amazon. Methods A...
Lutzomyia longipalpis (Lutz & Neiva, 1912) (Diptera: Psychodidae: Phlebotominae) is a vector of visceral leishmaniasis in the Americas and it might represent complex sibling species. Reproductive isolation between closely related species often involves differences courtship behaviour. cacophony (cac) period (per) are two Drosophila genes that control features "lovesong" males produce during has been implicated sexual We using gene fragments from L. longipalpis' homologues these to study...
Potential pathogen transmission through hematophagy in Culicidae is a major public-health problem, and several studies have been performed to better understand this phenomenon. Research on these insects often requires the maintenance of colonies laboratory. Due hematophagic habits organisms, blood must be provided order guarantee reproduction individuals that constitute colonies. Some species mammals birds are used as direct source many laboratories. current bioethical parameters, use...
The chemical control of the mosquito Aedes aegypti is a great challenge worldwide, since several populations this species are already resistant to traditional insecticides, such as temephos. In Brazil, alternative larvicides, Bacillus thuringiensis israelensis (Bti) and pyriproxyfen, have been used more recently. study we evaluated persistence pyriproxyfen (Sumilarv 0.5%G), 2 commercial formulations Bti (Vectobac WDG Vectobac G), temephos (Fersol 1G) under field simulated conditions with...
Aedes aegypti is the primary transmitter of several arbovirus with great impact in human health. Controlling vector mosquitoes an essential and complex task. One promising control method to use as a vehicle disseminate tiny particles juvenile-killing insecticides, such pyriproxyfen (PPF), breeding sites.We aimed investigate capacity Ae. two new formulations PPF sites Rio de Janeiro city for assessment efficacy these products.Dissemination stations impregnated powder liquid were installed...
Lutzomyia longipalpis s.l. is the main vector of American visceral leishmaniasis (AVL) and occurs as a species complex. DNA samples from two Brazilian sympatric that differ in pheromone courtship song production were used to analyse molecular polymorphisms an odorant-binding protein ( obp29 ) gene. OBPs are proteins related olfaction involved activities fundamental survival, such foraging, mating choice oviposition site. In this study, marker was found be highly polymorphic Lu. , with no...