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Identification of a novel carboxylesterase dominantly expressed in the booklouse Liposcelis bostrychophila


  • Ishibashi, Osamu Laboratory of Biological Macromolecules, Graduate School of Agriculture, Osaka Metropolitan University




Liposcelis bostrychophila、 booklouse、 carboxylesterase、 insecticide、 synergist


Booklice are tiny insect pests commonly found in an indoor environment and characterized by extremely high proliferation ability. Booklouse contamination in stored foods causes serious food loss; therefore, they are recognized as so-called stored-food pests. Furthermore, booklice in house dust have been reported to be a potent allergen by which approximately 20% of asthma patients are sensitized. Therefore, the safe extermination of booklice would contribute to the solution of both food loss and allergic concerns. Organophosphates (OPs) are compounds generally used as harmless insecticides against various pests; nonetheless, cases of OP poisoning are sometimes reported worldwide. Therefore, considering usage for protecting stored food products, OP doses should be reduced as far as possible. It is generally known that carboxylesterase-mediated inactivation of OPs decreases the efficacy of OPs, suggesting that an inhibitor of carboxylesterase could be a synergist to reduce the effective dose of OP. Here, I report the molecular cloning and characterization of a novel carboxylesterase highly expressed in a representative species of indoor booklice, Liposcelis bostrychophila.


The author declares no conflicts of interest.

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投稿日時: 2022-10-07 04:35:55 UTC

公開日時: 2022-10-11 10:43:20 UTC — 2023-03-10 09:04:35 UTCに更新



New figures and tables that are based on newly obtained data were added to the manuscript. Therefore, extensive revisions throughout the menuscript were necessary.