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Dong S, Qi S, Zhang S, Wu X, Xin J, Fan Y, Wang X, Wang P, Wu L. Tissue-Specific Accumulation of Orally Administered Short- and Medium-Chain Chlorinated Paraffins in Honeybees ( Apis mellifera L.). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:13658-13667. [PMID: 39056270 DOI: 10.1021/acs.est.4c02045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/28/2024]
Abstract
The prevalence and distribution of chlorinated paraffins (CPs) have been extensively studied in various matrices and organisms; however, there is a lack of information about insects, particularly in honeybees. To address this gap, we studied young honeybee workers exposed to short- and medium-chain CPs (SCCPs and MCCPs) at an environmentally relevant concentration of 10 mg/L for 7 days, followed by a 7-day elimination period. Results indicated that CPs could transfer into the head after oral consumption and SCCPs and MCCPs exhibited clear bioaccumulation trends: midgut > hindgut > head. An evaluation of congener group distribution patterns demonstrated that the dominant congener groups in all target tissues were C11-13Cl7-8 and C14Cl7-8 for SCCPs and MCCPs, respectively, consistent with the treated CP standards. In honeybees, a significant negative relationship was observed for the log concentration of MCCP congener groups and their log KOW, but not with their log KOA. Conversely, no such correlation was found for SCCPs. These findings suggest that honeybees have a high potential to bioaccumulate MCCPs, particularly those with a low log KOW, and exhibit weak selectivity for SCCPs.
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Affiliation(s)
- Shujun Dong
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Suzhen Qi
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China
| | - Su Zhang
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xingyi Wu
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- College of Science, China Agricultural University, Beijing 100193, China
| | - Jianing Xin
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- College of Science, China Agricultural University, Beijing 100193, China
| | - Yaqun Fan
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xue Wang
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China
| | - Peilong Wang
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Liming Wu
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China
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Kim H, Maigoro AY, Lee JH, Frunze O, Kwon HW. The Improving Effects of Probiotic-Added Pollen Substitute Diets on the Gut Microbiota and Individual Health of Honey Bee ( Apis mellifera L.). Microorganisms 2024; 12:1567. [PMID: 39203409 PMCID: PMC11356693 DOI: 10.3390/microorganisms12081567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Revised: 07/26/2024] [Accepted: 07/29/2024] [Indexed: 09/03/2024] Open
Abstract
Honey bee (Apis mellifera L.) health is crucial for honey bee products and effective pollination, and it is closely associated with gut bacteria. Various factors such as reduced habitat, temperature, disease, and diet affect the health of honey bees by disturbing the homeostasis of the gut microbiota. In this study, high-throughput 16S rRNA gene sequencing was used to analyze the gut microbiota of honey bees subjected to seven diets over 5 days. Lactobacillus dominated the microbiota in all diets. Cage experiments (consumption, head protein content, and vitellogenin gene expression level) were conducted to verify the effect of the diet. Through a heatmap, the Diet2 (probiotic-supplemented) group was clustered together with the Beebread and honey group, showing high consumption (177.50 ± 26.16 mg/bee), moderately higher survival duration (29.00 ± 2.83 days), protein content in the head (312.62 ± 28.71 µg/mL), and diet digestibility (48.41 ± 1.90%). Additionally, we analyzed the correlation between gut microbiota and health-related indicators in honey bees fed each diet. Based on the overall results, we identified that probiotic-supplemented diets increased gut microbiota diversity and positively affected the overall health of individual honey bees.
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Affiliation(s)
- Hyunjee Kim
- Convergence Research Center for Insect Vectors, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea; (H.K.); (A.Y.M.); (J.-H.L.); (O.F.)
| | - Abdulkadir Yusif Maigoro
- Convergence Research Center for Insect Vectors, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea; (H.K.); (A.Y.M.); (J.-H.L.); (O.F.)
| | - Jeong-Hyeon Lee
- Convergence Research Center for Insect Vectors, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea; (H.K.); (A.Y.M.); (J.-H.L.); (O.F.)
- Department of Life Sciences, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
| | - Olga Frunze
- Convergence Research Center for Insect Vectors, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea; (H.K.); (A.Y.M.); (J.-H.L.); (O.F.)
| | - Hyung-Wook Kwon
- Convergence Research Center for Insect Vectors, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea; (H.K.); (A.Y.M.); (J.-H.L.); (O.F.)
- Department of Life Sciences, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
- Division of Research and Development, Insensory Inc., 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
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Smutin D, Taldaev A, Lebedev E, Adonin L. Shotgun Metagenomics Reveals Minor Micro" bee"omes Diversity Defining Differences between Larvae and Pupae Brood Combs. Int J Mol Sci 2024; 25:741. [PMID: 38255816 PMCID: PMC10815634 DOI: 10.3390/ijms25020741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/29/2023] [Accepted: 01/04/2024] [Indexed: 01/24/2024] Open
Abstract
Bees represent not only a valuable asset in agriculture, but also serve as a model organism within contemporary microbiology. The metagenomic composition of the bee superorganism has been substantially characterized. Nevertheless, traditional cultural methods served as the approach to studying brood combs in the past. Indeed, the comb microbiome may contribute to determining larval caste differentiation and hive immunity. To further this understanding, we conducted a shotgun sequencing analysis of the brood comb microbiome. While we found certain similarities regarding species diversity, it exhibits significant differentiation from all previously described hive metagenomes. Many microbiome members maintain a relatively constant ratio, yet taxa with the highest abundance level tend to be ephemeral. More than 90% of classified metagenomes were Gammaproteobacteria, Bacilli and Actinobacteria genetic signatures. Jaccard dissimilarity between samples based on bacteria genus classifications hesitate from 0.63 to 0.77, which for shotgun sequencing indicates a high consistency in bacterial composition. Concurrently, we identified antagonistic relationships between certain bacterial clusters. The presence of genes related to antibiotic synthesis and antibiotic resistance suggests potential mechanisms underlying the stability of comb microbiomes. Differences between pupal and larval combs emerge in the total metagenome, while taxa with the highest abundance remained consistent. All this suggests that a key role in the functioning of the comb microbiome is played by minor biodiversity, the function of which remains to be established experimentally.
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Affiliation(s)
- Daniil Smutin
- Institute of Environmental and Agricultural Biology (X-BIO), Tyumen State University, Tyumen 625003, Russia
- Faculty of Information Technology and Programming, ITMO University, St. Petersburg 197101, Russia
| | - Amir Taldaev
- Institute of Environmental and Agricultural Biology (X-BIO), Tyumen State University, Tyumen 625003, Russia
- Institute of Biomedical Chemistry, Moscow 119121, Russia
- Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, Dolgoprudny 141700, Russia
| | - Egor Lebedev
- Institute of Environmental and Agricultural Biology (X-BIO), Tyumen State University, Tyumen 625003, Russia
| | - Leonid Adonin
- Institute of Environmental and Agricultural Biology (X-BIO), Tyumen State University, Tyumen 625003, Russia
- Institute of Biomedical Chemistry, Moscow 119121, Russia
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