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  • acetylcholinesterase  (1)
  • genetic distance  (1)
  • isoelectric focusing electrophoresis (IEF)  (1)
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  • 1
    ISSN: 1573-4927
    Keywords: Ostrinia nubilalis Hübner ; Ostrinia furnacalis Guenée ; allozyme ; genetic identity ; genetic distance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract To test the hypothesis of the migration of the corn borer, the allozymes of nine populations of the corn borer(Ostrinia) in China were checked using verticalslab polyacrylamide gel electrophoresis. Eight loci of six allozymes were analyzed. The mean of the genetic identities among the nine populations calculated from the allele frequencies was 0.99068, much closer than that of other species and geographical populations. The mean (0.97955) of the genetic identities between the XJYN population (Ostrinia nubilalis Hübner, collected from Yining, Xinjiang Autonomous Region) and each of the other eight populations (O. furnacalis Guenée) was significantly smaller than that between the pairs of the eight populations (0.99386;t test,P〈0.01). Although the population XJYN clearly deviates from the other eight populations in the dendrogram, the relationship of the two species of corn borer was very close. It is possible that the speciation of corn borer may have resulted from single-gene substitutions.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1573-1561
    Keywords: DIMBOA ; 2,4-dihydroxy-7-methoxy-(2H)-1,4-benzoxazin-3(4H)-one ; enzymes ; Asian corn borer (ACB) ; Ostrinia furnacalis (Guenée) ; acetylcholinesterase ; lipase ; cytochrome P-450 ; isoelectric focusing electrophoresis (IEF)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract By using spectrophotometric analysis and isoelectric focusing electrophoresis (IEF), we found inhibition of acetylcholinesterase (AChE), general esterase activity (Est), and lipase activity in larvae of the Asian corn borer (ACB),Ostrinia furnacalis (Guenée), fed on cabbage dipped in DIMBOA (400 ppm). Amylase was not influenced, while activity of cytochrome P-450 monooxygenase and glutathloneS-transferase was increased. The results indicate that DIMBOA influences activity levels of some nervous system and detoxication enzymes and inactivates some hydrolysis enzymes.
    Type of Medium: Electronic Resource
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