Mechanism of Fenitrothion Resistance in the Organophosphate-Resistant Bulb Mite, Rhizoglyphus robini Claparéde (Acarina: Acaridae)

Masahiko Kuwahara, Takashi Shishido, Yasuhiko Konno

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Sensitivity of acetylcholinesterase (AChE) to inhibitors and metabolism of ring and methoxy-14Clabelled fenitrothion and methoxy-14Clabelled fenitroxon were examined in the organophosphate (OP)-resistant and -susceptible strains of the bulb mite Rhizoglyphus robini. The experimental evidence obtained from the in vivo and in vitro tests revealed that reduced cuticular penetration rates of fenitrothion and increased detoxification of fenitroxon were responsible for fenitrothion resistance in OP-resistant strain. But there were no interstrain differences in sensitivity of AChE to inhibitors, and also in activities of mixed function oxidases, glutathion-S-transferase to fenitrothion and binding protein in fenitrothion detoxification.

Original languageEnglish
Pages (from-to)205-214
Number of pages10
JournalApplied Entomology and Zoology
Volume26
Issue number2
DOIs
Publication statusPublished - 1991 Jan 1
Externally publishedYes

Keywords

  • Rhizoglyphus robini
  • fenitrothion
  • resistance mechanism

ASJC Scopus subject areas

  • Insect Science

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