01621naa a2200253 a 450000100080000000500110000800800410001910000170006024500810007726000090015850001180016752007730028565000170105865300210107565300160109665300270111265300290113965300300116870000190119870000230121770000170124070000190125777300910127611227942018-07-17       2007    bl uuuu     u00u1 u    #d1 aBAFFI, M. A.  aEsterase profile in the postembryonic development of Rhipicephalus microplus  c2007  aTítulo em português: Perfil esterásico durante o desenvolvimento pós-embrionário de Rhipicephalus microplus.  aThe objective of this work was to analyze the pattern of esterase activity in the development stages of Rhipicephalus microplus by nondenaturing polyacrylamide gel electrophoresis using specific staining for esterase. The electrophoretical results revealed the presence of nine regions displaying esterase activity, stained with both alpha-naphthyl acetate and beta-naphthyl acetate, and classified as alpha-beta-esterase. Stage-specific esterases were found, with the first nymphal and larval stages showing the greatest esterase activity throughout the development. An esterase called EST-4 was detected only in males and was considered sex-specific. There are differences in the esterase profile among the different postembryonic development stages of R. microplus.  atick control  acarrapato bovino  acattle tick  acontrole de carrapatos  aresistance to acaricides  aresistência a acaricidas1 aPEREIRA, C. D.1 aSOUZA, G. R. L. de1 aCERON, C. R.1 aBONETTI, A. M.  tPesquisa Agropecuária Brasileira, Brasília, DFgv. 42, n. 8, p. 1183-1188, ago. 2007