Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Field Application of an Innovative Approach to Assess Honeybee Health and Nutritional Status

Version 1 : Received: 11 June 2024 / Approved: 11 June 2024 / Online: 11 June 2024 (15:09:34 CEST)

How to cite: Rudelli, C.; Galuppi, R.; Cabbri, R.; Dalmonte, T.; Fontanesi, L.; Andreani, G.; Isani, G. Field Application of an Innovative Approach to Assess Honeybee Health and Nutritional Status. Preprints 2024, 2024060739. https://doi.org/10.20944/preprints202406.0739.v1 Rudelli, C.; Galuppi, R.; Cabbri, R.; Dalmonte, T.; Fontanesi, L.; Andreani, G.; Isani, G. Field Application of an Innovative Approach to Assess Honeybee Health and Nutritional Status. Preprints 2024, 2024060739. https://doi.org/10.20944/preprints202406.0739.v1

Abstract

Environment, forage quality, management practices, pathogens and pesticides influence honeybee responses to stressors. This study proposes an innovative approach to assess colony health and performance using molecular diagnostic tools, by correlating hemolymph proteins with common measures of colony strength, prevalent honeybee pathogens (Varroa destructor and Nosema spp.) and essential elements (iron, zinc and copper). Colonies were selected from four apiaries in the province of Bologna (Italy), located in different environmental and foraging conditions. Haemolymph samples were taken from June to October 2019. The Varroa infestation of the colonies was estimated by assessing the natural fall of the mites, while the bees were tested for Nosema spp. spores using microscopic method. Proteins were separated using SDS-PAGE and colony performance was assessed by determining adult bees, total brood, and honey and pollen reserves. The biomarkers measured proved to be useful for monitoring changes in performance and trophic conditions during summer and early autumn. Significant correlations were found between haemolymph proteins and colony performance measures. A positive correlation between pollen reserves and vitellogenin and hexamerin 70a highlights the importance of these proteins for successful overwintering. In October, Varroa infestation was negatively correlated with total proteins, vitellogenin, apolipophorin II, transferrin, and hexamerin 70a, with negative implications for overwintering; furthermore, Varroa infestation was also negatively correlated with iron content, potentially affecting iron homeostasis.

Keywords

honeybees, haemolymph proteins, vitellogenin, essential trace elements, Varroa destructor, Nosema spp,

Subject

Biology and Life Sciences, Insect Science

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.