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- Title
Esterases A5-B5 in organophosphate-resistant Culex pipiens from Italy.
- Authors
SEVERINI, CARLO; ROMI, ROBERTO; MARINUCCI, MARINO; GUILLEMAUD, THOMAS; RAYMOND, MICHEL
- Abstract
. Culex pipiens mosquitoes from Lignano city, Udine province, northeast Italy, were found to carry over-produced non-specific esterases Al, A2-B2 and A4-B4 or A5-B5, detected by starch gel electrophoresis, giving multiple resistance to organophosphorus insecticides. In order to differentiate between A4-B4 and A5-B5 esterases, the latter known only from Cyprus whereas the former is widespread in Italy and elsewhere, restriction fragment length polymorphism (RFLP) analysis was performed at the esterase B locus. Both B4 and B5 haplotypes were found. This is the first record of A5-B5 esterase-mediated resistance in continental Europe.
- Publication
Medical & Veterinary Entomology, 1997, Vol 11, Issue 2, p123
- ISSN
0269-283X
- Publication type
Article
- DOI
10.1111/j.1365-2915.1997.tb00300.x