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Genome sequences of the human body louse and its primary endosymbiont provide insights into the permanent parasitic lifestyle
The genome sequences of the body louse and its primary bacterial endosymbiont Candidatus Riesia pediculicola are presented, providing a reference for studies of holometabolous insects. Expand
Fenpyroximate resistance in Tetranychus urticae (Acari: Tetranychidae): cross-resistance and biochemical resistance mechanisms.
Results suggested that enhanced activities of both mixed-function oxidases and esterases likely contribute to the fenpyroximate resistance of the FR-20 strain of T urticae. Expand
Identification and characterization of ace1-type acetylcholinesterase likely associated with organophosphate resistance in Plutella xylostella
Abstract Insensitive acetylcholinesterase (AChE) was determined to be primarily involved in a prothiofos-resistant (PR) strain of diamondback moth (DBM, Plutella xylostella L.), as judged by the AChEExpand
Biochemical and Molecular Analysis of Deltamethrin Resistance in the Common Bed Bug (Hemiptera: Cimicidae)
Evidence suggests that the two mutations identified are likely the major resistance-causing mutations in the deltamethrin-resistant NY-BB through a knockdown-type nerve insensitivity mechanism. Expand
Accumulated Heavy Metal Content in Wolf Spider, Pardosa astrigera (Araneae: Lycosidae), as a Bioindicator of Exposure
The development of P. astrigera both in nymphal and sub-adult stages was suppressed by the constant exposure to 20 mM CdCl 2 as judged by the reduced rate of body weight gain, suggestive of its apparent sub-lethal effects. Expand
Molecular Analysis of kdr-like Resistance in Permethrin-Resistant Strains of Head Lice, Pediculus capitis
The significantly higher levels of resistance determined using the knockdown ratios compared to the mortality ratios suggest that nerve insensitivity, most likely mediated by mutations within sodium channel genes, is a principal mechanism associated with resistance. Expand
Ovicidal and adulticidal activities of Cinnamomum zeylanicum bark essential oil compounds and related compounds against Pediculus humanus capitis (Anoplura: Pediculicidae).
In vapour phase toxicity tests with female lice, benzaldehyde and salicylaldehyde were much more effective in closed containers than in open ones, indicating that the mode of delivery of these compounds was largely due to action in the vapours phase. Expand
Ovicidal and adulticidal effects of Eugenia caryophyllata bud and leaf oil compounds on Pediculus capitis.
The Eugenia bud and leaf essential oils, particularly eugenol and methyl salicylate, merit further study as potential P. capitis control agents or lead compounds. Expand
Which acetylcholinesterase functions as the main catalytic enzyme in the Class Insecta?
  • Y. Kim, S. Lee
  • Biology, Medicine
  • Insect biochemistry and molecular biology
  • 2013
These findings challenge the common notion that AChE1 is the only main catalytic enzyme in insects with the exception of Cyclorrhapha, and demonstrate that the specialization of A chE2 as the main enzyme or the replacement of A ChE1 function with ACh E2 were rather common events. Expand
Comparison of the humoral and cellular immune responses between body and head lice following bacterial challenge.
Findings suggest that the greater immune response in head lice against E. coli is largely due to enhanced phagocytosis and not due to differences in the humoral immune response, which could be responsible for their increased vector competence. Expand