Dietary quercetin impacts the concentration of pesticides in honey bees

Ardalani, Hamidreza; Vidkjær, Nanna Hjort; Laursen, Britt Elmedal; Kryger, Per; Fomsgaard, Inge S.

doi:10.1016/j.chemosphere.2020.127848

Cited by 28 publications

(17 citation statements)

References 33 publications

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“…Such an effect on the detoxification capacity of bees was further confirmed by measuring pesticide metabolism. Ardalani et al [48] found a reduction in the concentration of imidacloprid in honeybee bodies fed with quercetin, although no effect was observed on the reduction in the concentration of tebuconazole or tau-fluvalinate. Similarly, adding p-coumaric acid to a sucrose diet led to faster coumaphos disappearance [43].…”

Section: Introductionmentioning

confidence: 99%

Pollen nutrition fosters honeybee tolerance to pesticides

et al. 2021

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A reduction in floral resource abundance and diversity is generally observed in agro-ecosystems, along with widespread exposure to pesticides. Therefore, a better understanding on how the availability and quality of pollen diets can modulate honeybee sensitivity to pesticides is required. For that purpose, we evaluated the toxicity of acute exposure and chronic exposures to field realistic and higher concentrations of azoxystrobin (fungicide) and sulfoxaflor (insecticide) in honeybees provided with pollen diets of differing qualities (named S and BQ pollens). We found that pollen intake reduced the toxicity of the acute doses of pesticides. Contrary to azoxystrobin, chronic exposures to sulfoxaflor increased by 1.5- to 12-fold bee mortality, which was reduced by pollen intake. Most importantly, the risk of death upon exposure to a high concentration of sulfoxaflor was significantly lower for the S pollen diet when compared with the BQ pollen diet. This reduced pesticide toxicity was associated with a higher gene expression of vitellogenin, a glycoprotein that promotes bee longevity, a faster sulfoxaflor metabolization and a lower concentration of the phytochemical p -coumaric acid, known to upregulate detoxification enzymes. Thus, our study revealed that pollen quality can influence the ability of bees to metabolize pesticides and withstand their detrimental effects, providing another strong argument for the restoration of suitable foraging habitat.

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Section: Introductionmentioning

confidence: 99%

Pollen nutrition fosters honeybee tolerance to pesticides

et al. 2021

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“…In fact, relatively little is known about the occurrence of long-lasting or delayed effects upon acute exposure (Schneider et al 2012;Shi et al 2020). After exposure to a single dose, a rapid reduction in pesticide concentration is generally observed in honeybees, which contributes to shortening the exposure to the toxic compound (Ardalani 2021;Barascou et al 2021b).…”

Section: Introductionmentioning

confidence: 99%

Delayed effects of a single dose of a neurotoxic pesticide (sulfoxaflor) on honeybee foraging activity

Barascou

Réquier

Sené

et al. 2022

Science of The Total Environment

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“…On the other hand, the distancing behavior has a social character, in which the contaminated worker bees distance themselves from the brood area, representing the most susceptible individuals in the colony, migrating earlier than expected to the peripheral areas of the comb [59,60], thus preserving colony health [52]. Despite fungicides seeming to represent lower acute toxicity, recent studies have shown their abilities to unbalance bee health by modifying quercetin-dependent detoxification [57,58,61], which can detrimentally affect mitochondrial regeneration and ATP production. Although further investigations are needed before drawing firm conclusions, it is worth noting that the disruption of quercetin-mediated detoxification has been proposed as one of the main causes for lifespan reductions in honey bees [61,62].…”

Section: Discussionmentioning

confidence: 99%

Bayesian Multi-Targets Strategy to Track Apis mellifera Movements at Colony Level

Oliveira

Santos

Jumbo

et al. 2022

Insects

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Interactive movements of bees facilitate the division and organization of collective tasks, notably when they need to face internal or external environmental challenges. Here, we present a Bayesian and computational approach to track the movement of several honey bee, Apis mellifera, workers at colony level. We applied algorithms that combined tracking and Kernel Density Estimation (KDE), allowing measurements of entropy and Probability Distribution Function (PDF) of the motion of tracked organisms. We placed approximately 200 recently emerged and labeled bees inside an experimental colony, which consists of a mated queen, approximately 1000 bees, and a naturally occurring beehive background. Before release, labeled bees were fed for one hour with uncontaminated diets or diets containing a commercial mixture of synthetic fungicides (thiophanate-methyl and chlorothalonil). The colonies were filmed (12 min) at the 1st hour, 5th and 10th days after the bees’ release. Our results revealed that the algorithm tracked the labeled bees with great accuracy. Pesticide-contaminated colonies showed anticipated collective activities in peripheral hive areas, far from the brood area, and exhibited reduced swarm entropy and energy values when compared to uncontaminated colonies. Collectively, our approach opens novel possibilities to quantify and predict potential alterations mediated by pollutants (e.g., pesticides) at the bee colony-level.

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Dietary quercetin impacts the concentration of pesticides in honey bees

Cited by 28 publications

References 33 publications

Pollen nutrition fosters honeybee tolerance to pesticides

Pollen nutrition fosters honeybee tolerance to pesticides

Delayed effects of a single dose of a neurotoxic pesticide (sulfoxaflor) on honeybee foraging activity

Bayesian Multi-Targets Strategy to Track Apis mellifera Movements at Colony Level

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