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Queen Caging and Oxalic Acid Treatment: Combined Effect on Vitellogenin Content and Enzyme Activities in the First Post-Treatment Workers and Drones, Apis mellifera L.
Sagona, Simona; Coppola, Francesca; Nanetti, Antonio; Cardaio, Ilaria; Tafi, Elena; Palego, Lionella; Betti, Laura; Giannaccini, Gino; Felicioli, Antonio.
Afiliação
  • Sagona S; Department of Veterinary Sciences, Pisa University, Viale delle Piagge 2, 56124 Pisa, Italy.
  • Coppola F; Department of Pharmacy, Pisa University, Via Bonanno 6, 56126 Pisa, Italy.
  • Nanetti A; Department of Veterinary Sciences, Pisa University, Viale delle Piagge 2, 56124 Pisa, Italy.
  • Cardaio I; CREA Research Centre for Agriculture and Environment, Via di Corticella 133, 40128 Bologna, Italy.
  • Tafi E; CREA Research Centre for Agriculture and Environment, Via di Corticella 133, 40128 Bologna, Italy.
  • Palego L; CREA Research Centre for Agriculture and Environment, Via di Corticella 133, 40128 Bologna, Italy.
  • Betti L; Department of Clinical and Experimental Medicine, Pisa University, via Savi 10, 56126 Pisa, Italy.
  • Giannaccini G; Department of Pharmacy, Pisa University, Via Bonanno 6, 56126 Pisa, Italy.
  • Felicioli A; Department of Pharmacy, Pisa University, Via Bonanno 6, 56126 Pisa, Italy.
Animals (Basel) ; 12(22)2022 Nov 12.
Article em En | MEDLINE | ID: mdl-36428349
ABSTRACT
Varroa destructor is a mite causing serious damage to western honey bees. Managed colonies require artificial varroa control, which may be best obtained by combining mechanical and chemical methods. This study explored the possible effects of the combination of queen caging and oxalic acid treatment on the immune system (glucose oxidase, phenoloxidase, and vitellogenin) and antioxidant enzymes (superoxide dismutase, catalase, and glutathione S transferase) of first post-treatment generation drones and workers (newly emerged, nurses, and foragers). The combination of queen caging and oxalic acid treatment caused a decrease in glucose oxidase activity only in drones. This could cause issues of cuticular sclerotization, making a drone prone to bite injuries, dehydration, and pathogens. No differences in phenoloxidase activity were recorded in both post-treatment drones and workers generation. Among worker bees, the treatment determined a lower vitellogenin content in newly emerged bees while the result was higher in nurse bees. However, the treatment did not significantly affect the antioxidant enzymes activity in either drones or workers. The results obtained in this investigation suggest that the combined anti-varroa treatments had no negative effects on oxidative stress in the first post-treatment generation bees, while effects did occur on the immune system. Further investigations on the potential effects of glucose oxidase decrease in drones and vitellogenin content variation in workers are desirable.
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Texto completo: 1 Base de dados: MEDLINE Métodos Terapêuticos e Terapias MTCI: Terapias_biologicas / Apiterapia Idioma: En Revista: Animals (Basel) Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Itália

Texto completo: 1 Base de dados: MEDLINE Métodos Terapêuticos e Terapias MTCI: Terapias_biologicas / Apiterapia Idioma: En Revista: Animals (Basel) Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Itália