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Toxicology

Stress responses of honey bees to organic acid and essential oil treatments against varroa mites

Respuestas de estrés de las abejas de la miel a tratamientos con ácidos orgánicos y aceites esenciales contra los ácaros de varroa

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Pages 175-181 | Received 12 Jan 2016, Accepted 29 Dec 2016, Published online: 15 Mar 2017
 

Abstract

Natural medicines such as formic acid, oxalic acid, thymol and menthol have recently been used as alternative treatments against the honey bee parasitic mite varroa. The aim of this study was to observe and examine their impact on Heat Shock Proteins (HSP 70) in the brain tissues of bees. For this purpose, seven different treatment groups were created using various concentrations and administrations of formic and oxalic acid and thymol-menthol mixtures, including positive (untreated) and negative controls. The results showed that in the groups exposed to the varroa treatments, HSP 70 results were lower than those of the non-treated groups. HSP 70 results were lowest in the thymol-menthol mixture exposed group among the treated groups. We conclude that it would be more beneficial to prefer natural medicines against varroa, which lead to lower HSP 70 results which are the molecular determinants of stress.

Recientemente se han usado las medicinas naturales como el ácido fórmico, el ácido oxálico, el timol y el mentol como tratamientos alternativos contra el ácaro varroa parásito de la abeja de la miel. El objeto de este estudio fue observar y examinar su impacto en las proteínas de estrés térmico (PET 70) en los tejidos cerebrales de las abejas. Con este propósito, se establecieron siete grupos con diferentes tratamientos usando varias concentraciones y administraciones de las mezclas de ácido fórmico con ácido oxálico y de timol-mentol, incluyendo controles positivo (sin tratar) y negativo. Los resultados mostraron que en los grupos expuestos a tratamientos de varroa, los niveles de PET 70 fueron más bajos que para los grupos sin tratar. Los resultados de PET 70 fueron más bajos en el grupo expuesto a la mezcla timol-mentol entre los grupos tratados. Concluimos que sería más beneficioso preferir las medicinas naturales contra la varroa, que llevan a unos resultados más bajos en las PET 70, que son los determinantes moleculares del estrés.

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