Pesticide-induced oxidative stress in laboratory and field populations of native honey bees along intensive agricultural landscapes in two Eastern Indian states

Chakrabarti, Priyadarshini; Rana, Santanu; Sarkar, Sagartirtha; Smith, Barbara; Basu, Prasenjit

doi:10.1007/s13592-014-0308-z

Cited by 66 publications

(63 citation statements)

References 67 publications

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“…; Chakrabarti et al. ). In addition, the exposure of pollinators to these insecticides is chronic, due to their systemic properties; the active ingredients are taken up by a plant's root system and are translocated to all of its parts, including inflorescence (Jeschke et al.…”

Section: Introductionmentioning

confidence: 99%

Performance of honeybee colonies located in neonicotinoid‐treated and untreated cornfields in Quebec

Alburaki

Cheaib

Quesnel

et al. 2016

J Applied Entomology

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Twenty‐two honeybee (Apis mellifera) colonies were placed in four different cornfield areas in order to study the potential in situ effects of seed‐coated systemic neonicotinoid pesticides used in cornfields (Zea mays spp) on honeybee health. Two apiaries were located in two independent neonicotinoid‐treated cornfield areas and two others in two independent untreated cornfield areas used as controls. These experimental hives were extensively monitored for their performance and health traits over a period of one year. Trapped pollen was collected and microscopically identified to define the visited flowers and the amount of corn pollen collected by bees. Liquid chromatography–mass spectrometry was performed to detect pesticide residues in honeybee foragers and trapped pollen. Honeybee colonies located in neonicotinoid‐treated cornfields expressed significantly higher varroa mite loads than those in untreated cornfields. However, brood production and colony weight were less disturbed by the treatment factor. Sublethal doses of neonicotinoids were detected in the trapped corn pollen and none in bee foragers. Overall, our results show that forager bees collected 20% of corn pollen containing variable concentrations of neonicotinoids. Colonies located in treated cornfields expressed higher varroa loads and long‐term mortality than those in untreated cornfields. On the other hand, no significant differences were observed regarding the brood production and colony weight.

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Section: Introductionmentioning

confidence: 99%

Performance of honeybee colonies located in neonicotinoid‐treated and untreated cornfields in Quebec

Alburaki

Cheaib

Quesnel

et al. 2016

J Applied Entomology

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“…Its main enzymatic components, 38 antioxidant genes, have been annotated manually and their comparative analysis with dipteran species indicates differences in honey bee lifestyle and the quantity of pro‐oxidant molecules ingested with food (Corona & Robinson, ). Antioxidative systems in honey bees are also involved in the neutralization of xenobiotics, including insecticides and heavy metal ions (Chakrabarti et al., ; Nikolić et al., ). Furthermore, honey bee antioxidant enzymes are important for queen activity and longevity (Corona et al., ), viability of germinal cells (Weirich et al., ; Collins et al., ), and life span plasticity (Münch et al., ).…”

Section: Introductionmentioning

confidence: 99%

Seasonal variation in the activity of selected antioxidant enzymes and malondialdehyde level in worker honey bees

Orčić

Nikolić

Purać

et al. 2017

Entomologia Exp Applicata

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The recent decline in managed honey bee populations, Apis mellifera L. (Hymenoptera: Apidae), has caused scientific, ecological, and economic concern. Research into the formation of reactive oxygen species (ROS), antioxidative defense mechanisms, and oxidative stress can contribute to our understanding of bee survival and conservation of this species. Activities of superoxide dismutase (SOD), catalase (CAT), and glutathione S‐transferase (GST) enzymes together with levels of malondialdehyde (MDA) were measured in summer and winter honey bees sampled from three colonies. One colony was stationary (C1), entering the winter period having accumulated Robinia pseudoacacia L. (Fabaceae) honey, and two were migratory (C2 and C3), entering the winter period with mainly Tilia (Malvaceae) and Brassica (Brassicaceae) honey, respectively. Compared to summer workers, winter worker bees had decreased SOD and GST activity, and MDA level, whereas CAT activity increased in all three colonies. We also demonstrated that seasonality is the main factor responsible for changes in antioxidant enzymes and MDA levels in worker honey bees. Overall, our results indicate a difference between summer and winter worker bees, pointing at a reduced level of antioxidant enzyme defenses during overwintering which may be due to a decrease in production of ROS. The decreased levels of MDA measured in winter honey bees confirm this. As ROS are actively used by insects as a defense mechanism to fight pathogens, we suggest that reduced production of ROS contributes to higher susceptibility of winter honey bees to infections and reduced overwinter survival.

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“…Some widely used pesticides, such as neonicotinoids, are known to be extremely toxic for bees (Williamson et al 2014;Chakrabarti et al 2015) and can, even at sublethal doses, significantly decrease honey bee performance such as brood production, weight gain, disease resistance, and trigger disorders in colony dynamics and labor partition (Mackenzie and Winston 1989). These insecticides are valuable for pest control in agriculture, increasing the crop production and providing a worldwide food security (Potts et al 2010;Godfray et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Landscape and pesticide effects on honey bees: forager survival and expression of acetylcholinesterase and brain oxidative genes

et al. 2017

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-The aim of the present work was to assess the effects of landscape and pesticides on honey bee survival and physiological stress. Integrated use of acetylcholinesterase and detoxification enzymes was tested on honey bee brains for detecting possible exposure to pesticides. Foragers were tracked in agricultural and non-agricultural landscapes in West Tennessee (USA) and then recovered for molecular and chemical analyses. In addition, four honey bee cohorts were fed imidacloprid in the laboratory ad libitum for several weeks and were analyzed by RTqPCR for gene expression. Pesticides were identified at different concentrations in both crop flowers and recovered foragers. No significant differences in foragers' mortality were found among locations. Acetylcholinesterase and detoxification genes showed no response to exposure to pesticides except for GstS3 and GstS4. Our results suggest that none of the studied genes make suitable biomarkers for honey bee exposed to pesticides.honey bee foragers / agricultural landscape / crops / gene expression

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Pesticide-induced oxidative stress in laboratory and field populations of native honey bees along intensive agricultural landscapes in two Eastern Indian states

Cited by 66 publications

References 67 publications

Performance of honeybee colonies located in neonicotinoid‐treated and untreated cornfields in Quebec

Performance of honeybee colonies located in neonicotinoid‐treated and untreated cornfields in Quebec

Seasonal variation in the activity of selected antioxidant enzymes and malondialdehyde level in worker honey bees

Landscape and pesticide effects on honey bees: forager survival and expression of acetylcholinesterase and brain oxidative genes

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