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Ke L, Chen X, Dai P, Liu YJ. Chronic larval exposure to thiacloprid impairs honeybee antennal selectivity, learning and memory performances. Front Physiol 2023; 14:1114488. [PMID: 37153228 PMCID: PMC10157261 DOI: 10.3389/fphys.2023.1114488] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 03/31/2023] [Indexed: 05/09/2023] Open
Abstract
The use of agricultural neonicotinoid insecticides has sub-lethal chronic effects on bees that are more prevalent than acute toxicity. Among these insecticides, thiacloprid, a commonly used compound with low toxicity, has attracted significant attention due to its potential impact on the olfactory and learning abilities of honeybees. The effect of sub-lethal larval exposure to thiacloprid on the antennal activity of adult honeybees (Apis mellifera L.) is not yet fully understood. To address this knowledge gap, laboratory-based experiments were conducted in which honeybee larvae were administered thiacloprid (0.5 mg/L and 1.0 mg/L). Using electroantennography (EAG), the impacts of thiacloprid exposure on the antennal selectivity to common floral volatiles were evaluated. Additionally, the effects of sub-lethal exposure on odor-related learning and memory were also assessed. The results of this study reveal, for the first time, that sub-lethal larval exposure to thiacloprid decreased honeybee antenna EAG responses to floral scents, leading to increased olfactory selectivity in the high-dose (1.0 mg/L) group compared to the control group (0 mg/L vs. 1.0 mg/L: p = 0.042). The results also suggest that thiacloprid negatively affected odor-associated paired learning acquisition, as well as medium-term (1 h) (0 mg/L vs. 1.0 mg/L: p = 0.019) and long-term memory (24 h) (0 mg/L vs. 1.0 mg/L: p = 0.037) in adult honeybees. EAG amplitudes were dramatically reduced following R-linalool paired olfactory training (0 mg/L vs. 1.0 mg/L: p = 0.001; 0 mg/L vs. 0.5 mg/L: p = 0.027), while antennal activities only differed significantly in the control between paired and unpaired groups. Our results indicated that exposure to sub-lethal concentrations of thiacloprid may affect olfactory perception and learning and memory behaviors in honeybees. These findings have important implications for the safe use of agrochemicals in the environment.
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Affiliation(s)
- Li Ke
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Pollinating Insect Biology, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiasang Chen
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Pollinating Insect Biology, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Pingli Dai
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Pollinating Insect Biology, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yong-Jun Liu
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Pollinating Insect Biology, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
- *Correspondence: Yong-Jun Liu,
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Piechowicz B, Początek E, Woś I, Zaręba L, Koziorowska A, Podbielska M, Grodzicki P, Szpyrka E, Sadło S. Insecticide and fungicide effect on thermal and olfactory behavior of bees and their disappearance in bees' tissues. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2022; 95:103975. [PMID: 36096440 DOI: 10.1016/j.etap.2022.103975] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 09/03/2022] [Accepted: 09/06/2022] [Indexed: 06/15/2023]
Abstract
Plant protection products may affect the behavior of organisms which are not a target of control. The effect of Karate Zeon 050 CS (λ-Cyhalothrin -based insecticide; λ-CBI) and Amistar 250 SC (Azoxystrobin-based fungicide; ABF) was determined on Apis mellifera worker attraction towards their own colony odour, along with temperature preferences. Bees exposed to pesticides prefer the environment with the odour of their nest less often than the control group, and that insecticide-treated bees chose warmer environments than the control insects. The observed differences in the bees, especially with attraction towards their own colony, were dependent on the time of day. Chromatographic analyses indicated that λ-Cyhalothrin elimination was half that of Azoxystrobin in bee organisms, and both agents retarded each other's clearance. Mathematical modeling estimated that despite a relatively high disappearance rate, both compounds might have been bio-accumulated at relatively high level.
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Affiliation(s)
- Bartosz Piechowicz
- Department of Biotechnology, Institute of Biology and Biotechnology, University of Rzeszów, ul. Pigonia 1, Rzeszów 35-310, Poland; Interdisciplinary Center for Preclinical and Clinical Research, University of Rzeszow, Werynia 2, Kolbuszowa 36-100, Poland
| | - Edyta Początek
- Department of Biotechnology, Institute of Biology and Biotechnology, University of Rzeszów, ul. Pigonia 1, Rzeszów 35-310, Poland
| | - Izabela Woś
- Laboratory for Translational Research in Medicine, Centre for Innovative Research in Medical and Natural Sciences, College for Medical Sciences of University of Rzeszow, ul. Kopisto 2a, Rzeszow 35-959, Poland
| | - Lech Zaręba
- Interdisciplinary Centre for Computational Modelling, College of Natural Sciences, University of Rzeszów, ul. Pigonia 1, Rzeszów 35-310, Poland
| | - Anna Koziorowska
- Interdisciplinary Center for Preclinical and Clinical Research, University of Rzeszow, Werynia 2, Kolbuszowa 36-100, Poland; Institute of Material Engineering, College of Natural Sciences, University of Rzeszow, ul. Pigonia 1, Rzeszów 35-310, Poland.
| | - Magdalena Podbielska
- Department of Biotechnology, Institute of Biology and Biotechnology, University of Rzeszów, ul. Pigonia 1, Rzeszów 35-310, Poland
| | - Przemysław Grodzicki
- Department of Animal Physiology and Neurobiology, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Toruń, Poland
| | - Ewa Szpyrka
- Department of Biotechnology, Institute of Biology and Biotechnology, University of Rzeszów, ul. Pigonia 1, Rzeszów 35-310, Poland
| | - Stanisław Sadło
- Retired, Department of Biotechnology, Institute of Biology and Biotechnology, University of Rzeszów, ul. Pigonia 1, Rzeszów 35-310, Poland
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Chen Z, Zhao J, Liu Z, Bai X, Li W, Guan Z, Zhou M, Zhu H. Graphene-Delivered Insecticides against Cotton Bollworm. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2731. [PMID: 36014596 PMCID: PMC9412252 DOI: 10.3390/nano12162731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/31/2022] [Accepted: 08/03/2022] [Indexed: 06/15/2023]
Abstract
Nanopesticides can facilitate controlled release kinetics and efficiently enhance the permeability of active ingredients to reduce the dosage and loss of pesticides. To clarify the synergistic mechanism of graphene-insecticide nanocarriers against cotton bollworm, treatment groups, namely, control, graphene (G), insecticide (lambda-cyhalothrin (Cyh) and cyfluthrin (Cyf)), and graphene-delivered insecticide groups were used to treat the third-instar larvae of cotton bollworm. The variations in phenotypes, namely, the body length, body weight, and mortality of the cotton bollworm, were analyzed. The results show that graphene enhances the insecticidal activity of lambda-cyhalothrin and cyfluthrin against cotton bollworm. The two graphene-delivered insecticides with optimal compositions (3:1) had the strongest inhibitory effects and the highest mortality rates, with the fatality rates for the 3/1 Cyh/G and Cyf/G mixture compositions being 62.91% and 38.89%, respectively. In addition, the 100 μg/mL Cyh/G mixture had the greatest inhibitory effect on cotton bollworm, and it decreased the body length by 1.40 mm, decreased the weight by 1.88 mg, and had a mortality rate of up to 61.85%. The 100 and 150 μg/mL Cyh/G mixtures achieved the same mortality rate as that of lambda-cyhalothrin, thus reducing the use of the insecticide by one-quarter. The graphene-delivered insecticides could effectively destroy the epicuticle spine cells of the cotton bollworm by increasing the permeability and, thus, the toxicity of the insecticides.
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Affiliation(s)
- Zhiwen Chen
- Hainan Yazhou Bay Seed Laboratory, Sanya 572025, China
- National Key Laboratory of Plant Molecular Genetics and National Center for Plant Gene Research, Institute of Plant Physiology and Ecology/CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Jianguo Zhao
- Institute of Carbon Materials Science, School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, China
| | - Zehui Liu
- Institute of Carbon Materials Science, School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, China
| | - Xiuli Bai
- Institute of Carbon Materials Science, School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, China
| | - Weijia Li
- Institute of Carbon Materials Science, School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, China
| | - Zhifang Guan
- Hainan Yazhou Bay Seed Laboratory, Sanya 572025, China
| | - Ming Zhou
- School of Mechanical and Transportation Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China
| | - Hongwei Zhu
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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