Insecticide Resistance Evaluation of Culex Quinquefasciatus, 2017
نویسندگان
چکیده
منابع مشابه
insecticide-resistant mosquito Culex quinquefasciatus
Resistance to organophosphates in Culex mosquitoes is typically associated with increased activity of non-specific esterases. The commonest phenotype involves two elevated esterases, A2 and B2, while some strains have elevation of esterase B1 alone. Overexpression of the two B esterase electromorphs is due to gene amplification. Full-length cDNAs coding for amplified esterase B genes from a res...
متن کاملEnzymatic Characterization of Insecticide Resistance Mechanisms in Field Populations of Malaysian Culex quinquefasciatus Say (Diptera: Culicidae)
BACKGROUND There has been no comprehensive study on biochemical characterization of insecticide resistance mechanisms in field populations of Malaysian Culex quinquefasciatus. To fill this void in the literature, a nationwide investigation was performed to quantify the enzyme activities, thereby attempting to characterize the potential resistance mechanisms in Cx. quinquefasciatus in residentia...
متن کاملRole of G-protein-coupled Receptor-related Genes in Insecticide Resistance of the Mosquito, Culex quinquefasciatus
G-protein-coupled receptors regulate signal transduction pathways and play diverse and pivotal roles in the physiology of insects, however, the precise function of GPCRs in insecticide resistance remains unclear. Using quantitative RT-PCR and functional genomic methods, we, for the first time, explored the function of GPCRs and GPCR-related genes in insecticide resistance of mosquitoes, Culex q...
متن کاملCharacterization of a B-type esterase involved in insecticide resistance from the mosquito Culex quinquefasciatus.
The enzyme, esterase B2, involved in insecticide resistance has been purified and characterized from the mosquito Culex quinquefasciatus. The monomeric enzyme has an M(r) of 62000 and a pI of 5.0. This enzyme is compared with the esterase A2 previously characterized [Ketterman, Jayawardena and Hemingway (1992) Biochem. J. 287, 355-360]. The kinetic constants for interaction with several insecti...
متن کاملEvaluation of insecticide resistance and biochemical mechanisms in a population of Culex quinquefasciatus (Diptera: Culicidae) from São Paulo, Brazil.
To establish an insecticidal resistance surveillance program, Culex quinquefasciatus mosquitoes from São Paulo, Brazil, were colonized (PIN95 strain) and analyzed for levels of resistance. The PIN95 strain showed low levels of resistance to organophosphates [malathion (3.3-fold), fenitrothion (11.2-fold)] and a carbamate [propoxur (3.0-fold)]. We also observed an increase of 7.4 and 9.9 in alph...
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ژورنال
عنوان ژورنال: Arthropod Management Tests
سال: 2019
ISSN: 2155-9856
DOI: 10.1093/amt/tsz012