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Hua Q, Chi X, Zhang W, Song H, Wang Y, Liu Z, Wang H, Xu B. Damage to the behavior and physiological functions of Apis mellifera (Hymenoptera: Apidae) by monocrotaline via the modulation of tryptophan metabolism and the corazonin receptor. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 952:175931. [PMID: 39218096 DOI: 10.1016/j.scitotenv.2024.175931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Revised: 08/29/2024] [Accepted: 08/29/2024] [Indexed: 09/04/2024]
Abstract
Monocrotaline (MCT) is a toxic pyrrolizidine alkaloid found in plants of the Crotalaria genus. As primary pollinators of Crotalaria plants, honeybees come into contact with this harmful substance. However, limited research has been conducted on the effects of MCT on Apis mellifera, particularly the risks of long-term exposure to sublethal concentrations. Through evaluating the proboscis extension reflex (PER) ability, analyzing the honeybee brain transcriptome, and analyzing the honeybee hemolymph metabolome, we discovered that sublethal concentrations of MCT impair the olfactory and memory capabilities of honeybees by affecting tryptophan (Trp) metabolism. Furthermore, MCT upregulates the expression of the corazonin receptor (CrzR) gene in the honeybee brain, which elevates reactive oxygen species (ROS) levels in the brain while reducing glucose levels in the hemolymph, consequently shortening the honeybees' lifespan. Our findings regarding the multifaceted impact of MCT on honeybees lay the foundation for exploring its toxicological pathways and management in honeybee populations.
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Affiliation(s)
- Qi Hua
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China
| | - Xuepeng Chi
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China
| | - Wei Zhang
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China
| | - Hongyu Song
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China
| | - Ying Wang
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China
| | - Zhenguo Liu
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China
| | - Hongfang Wang
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China
| | - Baohua Xu
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China.
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Wang J, Li Y, Sun D, Li J, Li L, Zhang X, Liu X, Feng Z, Xue H, Cui Y, Wang Y, Liu D, Wang H. Implementing Optogenetic-Controlled Bacterial Systems in Drosophila melanogaster for Alleviation of Heavy Metal Poisoning. ACS Synth Biol 2024; 13:3312-3325. [PMID: 39312764 DOI: 10.1021/acssynbio.4c00409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/25/2024]
Abstract
Drosophila melanogaster (fruit fly) is an animal model chassis in biological and genetic research owing to its short life cycle, ease of cultivation, and acceptability to genetic modification. While the D. melanogaster chassis offers valuable insights into drug efficacy, toxicity, and mechanisms, several obvious challenges such as dosage control and drug resistance still limit its utility in pharmacological studies. Our research combines optogenetic control with engineered gut bacteria to facilitate the precise delivery of therapeutic substances in D. melanogaster for biomedical research. We have shown that the engineered bacteria can be orally administered to D. melanogaster to get a stable density of approximately 28,000 CFUs/per fly, leading to no detectable negative effects on the growth of D. melanogaster. In a model of D. melanogaster exposure to heavy metal, these orally administered bacteria uniformly express target genes under green light control to produce MtnB protein for binding and detoxifying lead, which significantly reduces the level of oxidative stress in the intestinal tract of Pb-treated flies. This pioneering study lays the groundwork for using optogenetic-controlled bacteria in the model chassis D. melanogaster to advance biomedical applications.
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Affiliation(s)
- Junyi Wang
- School of Life Sciences, Faculty of Medicine, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, Tianjin University, Tianjin 300072, China
| | - Ying Li
- School of Pharmaceutical Science and Technology, Faculty of Medicine, Tianjin University, Tianjin 300072, China
| | - Dawei Sun
- School of Life Sciences, Faculty of Medicine, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, Tianjin University, Tianjin 300072, China
| | - Jingyi Li
- School of Pharmaceutical Science and Technology, Faculty of Medicine, Tianjin University, Tianjin 300072, China
| | - Lianyue Li
- School of Life Sciences, Faculty of Medicine, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, Tianjin University, Tianjin 300072, China
| | - Xinyu Zhang
- School of Life Sciences, Faculty of Medicine, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, Tianjin University, Tianjin 300072, China
| | - Xinyu Liu
- School of Life Sciences, Faculty of Medicine, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, Tianjin University, Tianjin 300072, China
| | - Zhijie Feng
- School of Life Sciences, Faculty of Medicine, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, Tianjin University, Tianjin 300072, China
| | - Huimin Xue
- School of Life Sciences, Faculty of Medicine, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, Tianjin University, Tianjin 300072, China
| | - Yuhui Cui
- School of Life Sciences, Faculty of Medicine, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, Tianjin University, Tianjin 300072, China
| | - Yiwen Wang
- School of Pharmaceutical Science and Technology, Faculty of Medicine, Tianjin University, Tianjin 300072, China
| | - Duo Liu
- School of Life Sciences, Faculty of Medicine, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, Tianjin University, Tianjin 300072, China
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), Frontiers Research Institute for Synthetic Biology, Tianjin University, Tianjin 300072, China
| | - Hanjie Wang
- School of Life Sciences, Faculty of Medicine, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, Tianjin University, Tianjin 300072, China
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Kwong WK, Raymann K. Is it me or is it you? Physiological effects of the honey bee microbiota may instead be due to host maturation. mBio 2024; 15:e0210724. [PMID: 39324808 PMCID: PMC11481534 DOI: 10.1128/mbio.02107-24] [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] [Indexed: 09/27/2024] Open
Abstract
Microbiota-mediated impacts on host physiology and behavior have been widely reported in honey bees (Apis mellifera). However, most of these studies are conducted in artificial lab settings and fail to take into account, or make incorrect assumptions about, the complex physical and social structures inherent to natural hive conditions. A new study by Liberti et al. (J. Liberti, E. T. Frank, T. Kay, L. Kesner, et al., mBio 15:e01034-24, 2024, https://doi.org/10.1128/mbio.01034-24) identifies one such overlooked aspect-the behavioral maturation from nurses to foragers-that can be a serious confounding factor in bee microbiota experiments. Using cuticular hydrocarbon profiling to discern between the two maturation states, they find that multiple physiological and behavioral differences between age-matched lab bees could potentially be explained by their maturation state instead of the intended treatment conditions, such as microbial inoculation. This study serves as a stark wake-up call on the necessity of careful replication and cross-disciplinary knowledge transfer (e.g., between animal specialists and microbiologists) in order to truly understand complex host-microbe systems.
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Affiliation(s)
| | - Kasie Raymann
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, North Carolina, USA
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Zhong Z, Mu X, Lang H, Wang Y, Jiang Y, Liu Y, Zeng Q, Xia S, Zhang B, Wang Z, Wang X, Zheng H. Gut symbiont-derived anandamide promotes reward learning in honeybees by activating the endocannabinoid pathway. Cell Host Microbe 2024:S1931-3128(24)00357-3. [PMID: 39419026 DOI: 10.1016/j.chom.2024.09.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 07/28/2024] [Accepted: 09/20/2024] [Indexed: 10/19/2024]
Abstract
Polyunsaturated fatty acids (PUFAs) are dietary components participating in neurotransmission and cell signaling. Pollen is a source of PUFAs for honeybees, and disruptions in dietary PUFAs reduce the cognitive performance of honeybees. We reveal that gut bacteria of honeybees contribute to fatty acid metabolism, impacting reward learning. Gut bacteria possess Δ-6 desaturases that mediate fatty acid elongation and compensate for the absence of honeybee factors required for fatty acid metabolism. Colonization with Gilliamella apicola, but not a mutant lacking the Δ-6 desaturase FADS2, increases the production of anandamide (AEA), a ligand of the endocannabinoid system, and alters learning and memory. AEA activates the Hymenoptera-specific transient receptor AmHsTRPA in astrocytes, which induces Ca2+ influx and regulates glutamate re-uptake of glial cells to enhance reward learning. These findings illuminate the roles of gut symbionts in host fatty acid metabolism and the impacts of endocannabinoid signaling on the reward system of social insects.
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Affiliation(s)
- Zhaopeng Zhong
- College of Food Science and Nutritional Engineering, China Agricultural University, 100083 Beijing, China
| | - Xiaohuan Mu
- College of Food Science and Nutritional Engineering, China Agricultural University, 100083 Beijing, China
| | - Haoyu Lang
- College of Food Science and Nutritional Engineering, China Agricultural University, 100083 Beijing, China
| | - Yueyi Wang
- College of Food Science and Nutritional Engineering, China Agricultural University, 100083 Beijing, China
| | - Yanling Jiang
- College of Food Science and Nutritional Engineering, China Agricultural University, 100083 Beijing, China
| | - Yuwen Liu
- College of Food Science and Nutritional Engineering, China Agricultural University, 100083 Beijing, China
| | - Qian Zeng
- Department of Medical Neuroscience, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Siyuan Xia
- Department of Human Cell Biology and Genetics, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Baotong Zhang
- Department of Human Cell Biology and Genetics, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Zilong Wang
- Department of Medical Neuroscience, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Xiaofei Wang
- College of Food Science and Nutritional Engineering, China Agricultural University, 100083 Beijing, China.
| | - Hao Zheng
- College of Food Science and Nutritional Engineering, China Agricultural University, 100083 Beijing, China.
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5
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Chen X, Xu D, Yu J, Song XJ, Li X, Cui YL. Tryptophan Metabolism Disorder-Triggered Diseases, Mechanisms, and Therapeutic Strategies: A Scientometric Review. Nutrients 2024; 16:3380. [PMID: 39408347 PMCID: PMC11478743 DOI: 10.3390/nu16193380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2024] [Accepted: 10/02/2024] [Indexed: 10/20/2024] Open
Abstract
BACKGROUND Tryptophan is widely present in foods such as peanuts, milk, and bananas, playing a crucial role in maintaining metabolic homeostasis in health and disease. Tryptophan metabolism is involved in the development and progression of immune, nervous, and digestive system diseases. Although some excellent reviews on tryptophan metabolism exist, there has been no systematic scientometric study as of yet. METHODS This review provides and summarizes research hotspots and potential future directions by analyzing annual publications, topics, keywords, and highly cited papers sourced from Web of Science spanning 1964 to 2022. RESULTS This review provides a scientometric overview of tryptophan metabolism disorder-triggered diseases, mechanisms, and therapeutic strategies. CONCLUSIONS The gut microbiota regulates gut permeability, inflammation, and host immunity by directly converting tryptophan to indole and its derivatives. Gut microbial metabolites regulate tryptophan metabolism by activating specific receptors or enzymes. Additionally, the kynurenine (KYN) pathway, activated by indoleamine-2, 3-dioxygenase (IDO) and tryptophan 2, 3-dioxygenase, affects the migration and invasion of glioma cells and the development of COVID-19 and depression. The research and development of IDO inhibitors help to improve the effectiveness of immunotherapy. Tryptophan metabolites as potential markers are used for disease therapy, guiding clinical decision-making. Tryptophan metabolites serve as targets to provide a new promising strategy for neuroprotective/neurotoxic imbalance affecting brain structure and function. In summary, this review provides valuable guidance for the basic research and clinical application of tryptophan metabolism.
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Affiliation(s)
- Xue Chen
- Haihe Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; (X.C.); (D.X.); (J.Y.); (X.-J.S.); (X.L.)
- State Key Laboratory of Component-Based Chinese Medicine, Research Center of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Dong Xu
- Haihe Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; (X.C.); (D.X.); (J.Y.); (X.-J.S.); (X.L.)
- State Key Laboratory of Component-Based Chinese Medicine, Research Center of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Jie Yu
- Haihe Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; (X.C.); (D.X.); (J.Y.); (X.-J.S.); (X.L.)
- State Key Laboratory of Component-Based Chinese Medicine, Research Center of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Xu-Jiao Song
- Haihe Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; (X.C.); (D.X.); (J.Y.); (X.-J.S.); (X.L.)
- State Key Laboratory of Component-Based Chinese Medicine, Research Center of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Xue Li
- Haihe Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; (X.C.); (D.X.); (J.Y.); (X.-J.S.); (X.L.)
- State Key Laboratory of Component-Based Chinese Medicine, Research Center of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Yuan-Lu Cui
- Haihe Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; (X.C.); (D.X.); (J.Y.); (X.-J.S.); (X.L.)
- State Key Laboratory of Component-Based Chinese Medicine, Research Center of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
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Liberti J, Engel P, Cabirol A. Interplay between gut symbionts and behavioral variation in social insects. CURRENT OPINION IN INSECT SCIENCE 2024; 65:101233. [PMID: 39019113 DOI: 10.1016/j.cois.2024.101233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 05/27/2024] [Accepted: 07/09/2024] [Indexed: 07/19/2024]
Abstract
Social insects exhibit a high degree of intraspecific behavioral variation. Moreover, they often harbor specialized microbial communities in their gut. Recent studies suggest that these two characteristics of social insects are interlinked: insect behavioral phenotypes affect their gut microbiota composition, partly through exposure to different environments and diet, and in return, the gut microbiota has been shown to influence insect behavior. Here, we discuss the bidirectional relationship existing between intraspecific variation in gut microbiota composition and behavioral phenotypes in social insects.
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Affiliation(s)
- Joanito Liberti
- Department of Fundamental Microbiology, University of Lausanne, Switzerland; Department of Ecology and Evolution, University of Lausanne, Switzerland.
| | - Philipp Engel
- Department of Fundamental Microbiology, University of Lausanne, Switzerland
| | - Amélie Cabirol
- Department of Fundamental Microbiology, University of Lausanne, Switzerland.
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Han S, Akhtar MR, Xia X. Functions and regulations of insect gut bacteria. PEST MANAGEMENT SCIENCE 2024; 80:4828-4840. [PMID: 38884497 DOI: 10.1002/ps.8261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 06/03/2024] [Accepted: 06/05/2024] [Indexed: 06/18/2024]
Abstract
The insect gut is a complicated ecosystem that inhabits a large number of symbiotic bacteria. As an important organ of the host insect, the symbiotic bacteria of the insect gut play very important roles in regulating physiological and metabolic processes. Recently, much progress has been made in the study of symbiotic bacteria in insect guts with the development of high-throughput sequencing technology and molecular biology. This review summarizes the primary functions of symbiotic bacteria in insect guts, such as enhancing insecticide resistance, facilitating food digestion, promoting detoxification, and regulating mating behavior and egg hatching. It also addresses some possible pathways of gut bacteria symbiont regulation governed by external habitats, physiological conditions and immunity of the host insect. This review provides solid foundations for further studies on novel theories, new technologies and practical applications of symbiotic bacteria in insect guts. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Shuncai Han
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Integrated Pest Management for Fujian-Taiwan Crops, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Fujian Agriculture and Forestry University, Fuzhou, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou, China
- Youxi-Yangzhong Vegetable Pest Prevention and Control, Fujian Observation and Research Station, Fuzhou, China
| | - Muhammad Rehan Akhtar
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Integrated Pest Management for Fujian-Taiwan Crops, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Fujian Agriculture and Forestry University, Fuzhou, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou, China
- Youxi-Yangzhong Vegetable Pest Prevention and Control, Fujian Observation and Research Station, Fuzhou, China
| | - Xiaofeng Xia
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Integrated Pest Management for Fujian-Taiwan Crops, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Fujian Agriculture and Forestry University, Fuzhou, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou, China
- Youxi-Yangzhong Vegetable Pest Prevention and Control, Fujian Observation and Research Station, Fuzhou, China
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Fernandez de Landa G, Alberoni D, Braglia C, Baffoni L, Fernandez de Landa M, Revainera PD, Quintana S, Zumpano F, Maggi MD, Di Gioia D. The Gut Microbiome of Two Wild Bumble Bee Species Native of South America: Bombus pauloensis and Bombus bellicosus. MICROBIAL ECOLOGY 2024; 87:121. [PMID: 39340556 PMCID: PMC11438738 DOI: 10.1007/s00248-024-02430-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Accepted: 08/30/2024] [Indexed: 09/30/2024]
Abstract
South America is populated by a wide range of bumble bee species that represent an important source of biodiversity, supporting pollination services in natural and agricultural ecosystems. These pollinators provide unique specific microbial niches, populated by a wide number of microorganisms such as symbionts, environmental opportunistic bacteria, and pathogens. Recently, it was demonstrated how microbial populations are shaped by trophic resources and environmental conditions but also by anthropogenic pressure, which strongly affects microbes' functionality. This study is focused on the impact of different land uses (natural reserve, agroecosystem, and suburban) on the gut microbiome composition of two South American bumble bees, Bombus pauloensis and Bombus bellicosus. Gut microbial DNA extracted from collected bumble bees was sequenced on the Illumina MiSeq platform and correlated with land use. Nosema ceranae load was analyzed with qPCR and correlated with microbiome data. Significant differences in gut microbiome composition between the two wild bumble bee species were highlighted, with notable variations in α- and β-diversity across study sites. Bombus bellicosus showed a high abundance of Pseudomonas, a genus that includes environmental saprobes, and was found to be the second major taxa populating the gut microbiome, probably indicating the vulnerability of this host to environmental pollution. Pathogen analysis unveils a high prevalence of N. ceranae, with B. bellicosus showing higher susceptibility. Finally, Gilliamella exhibited a negative correlation with N. ceranae, suggesting a potential protective role of this commensal taxon. Our findings underscore the importance of considering microbial dynamics in pollinator conservation strategies, highlighting potential interactions between gut bacteria and pathogens in shaping bumble bee health.
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Affiliation(s)
- Gregorio Fernandez de Landa
- Facultad de Ciencias Exactas y Naturales, Centro Científico Tecnológico Mar del Plata, CONICET, Centro de Asociación Simple CIC PBA, Instituto de Investigaciones en Producción Sanidad y Ambiente (IIPROSAM), Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
- Centro de Investigaciones en Abejas Sociales, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Daniele Alberoni
- Dipartimento di Scienze e Tecnologie Agro-Alimentari, Università di Bologna, Viale Fanin 44, 40127, Bologna, Italy.
| | - Chiara Braglia
- Dipartimento di Scienze e Tecnologie Agro-Alimentari, Università di Bologna, Viale Fanin 44, 40127, Bologna, Italy
| | - Loredana Baffoni
- Dipartimento di Scienze e Tecnologie Agro-Alimentari, Università di Bologna, Viale Fanin 44, 40127, Bologna, Italy
| | - Mateo Fernandez de Landa
- Facultad de Ciencias Exactas y Naturales, Centro Científico Tecnológico Mar del Plata, CONICET, Centro de Asociación Simple CIC PBA, Instituto de Investigaciones en Producción Sanidad y Ambiente (IIPROSAM), Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
- Centro de Investigaciones en Abejas Sociales, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Pablo Damian Revainera
- Facultad de Ciencias Exactas y Naturales, Centro Científico Tecnológico Mar del Plata, CONICET, Centro de Asociación Simple CIC PBA, Instituto de Investigaciones en Producción Sanidad y Ambiente (IIPROSAM), Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
- Centro de Investigaciones en Abejas Sociales, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Silvina Quintana
- Facultad de Ciencias Exactas y Naturales, Centro Científico Tecnológico Mar del Plata, CONICET, Centro de Asociación Simple CIC PBA, Instituto de Investigaciones en Producción Sanidad y Ambiente (IIPROSAM), Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
- Centro de Investigaciones en Abejas Sociales, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Francisco Zumpano
- Facultad de Ciencias Exactas y Naturales, Instituto de Investigaciones Marinas y Costeras (IIMyC), Universidad Nacional de Mar del Plata-CONICET, Funes 3350, (7600), Mar del Plata, Argentina
| | - Matias Daniel Maggi
- Facultad de Ciencias Exactas y Naturales, Centro Científico Tecnológico Mar del Plata, CONICET, Centro de Asociación Simple CIC PBA, Instituto de Investigaciones en Producción Sanidad y Ambiente (IIPROSAM), Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
- Centro de Investigaciones en Abejas Sociales, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Diana Di Gioia
- Dipartimento di Scienze e Tecnologie Agro-Alimentari, Università di Bologna, Viale Fanin 44, 40127, Bologna, Italy
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Cabirol A, Chhun A, Liberti J, Kesner L, Neuschwander N, Schaerli Y, Engel P. Fecal transplant allows transmission of the gut microbiota in honey bees. mSphere 2024; 9:e0026224. [PMID: 39158277 PMCID: PMC11423570 DOI: 10.1128/msphere.00262-24] [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: 04/03/2024] [Accepted: 07/11/2024] [Indexed: 08/20/2024] Open
Abstract
The study of the fecal microbiota is crucial for unraveling the pathways through which gut symbionts are acquired and transmitted. While stable gut microbial communities are essential for honey bee health, their modes of acquisition and transmission are yet to be confirmed. The gut of honey bees is colonized by symbiotic bacteria within 5 days after emergence from their wax cells as adults. Few studies have suggested that bees could be colonized in part via contact with fecal matter in the hive. However, the composition of the fecal microbiota is still unknown. It is particularly unclear whether all bacterial species can be found viable in the feces and can therefore be transmitted to newborn nestmates. Using 16S rRNA gene amplicon sequencing, we revealed that the composition of the honey bee fecal microbiota is strikingly similar to the microbiota of entire guts. We found that fecal transplantation resulted in gut microbial communities similar to those obtained from feeding gut homogenates. Our study shows that fecal sampling and transplantation are viable tools for the non-invasive analysis of bacterial community composition and host-microbe interactions. It also implies that contact of young bees with fecal matter in the hive is a plausible route for gut microbiota acquisition. IMPORTANCE Honey bees are crucial pollinators for many crops and wildflowers. They are also powerful models for studying microbiome-host interactions. However, current methods rely on gut tissue disruption to analyze microbiota composition and use gut homogenates to inoculate microbiota-deprived bees. Here, we provide two new and non-invasive approaches that will open doors to longitudinal studies: fecal sampling and transplantation. Furthermore, our findings provide insights into gut microbiota transmission in social insects by showing that ingestion of fecal matter can result in gut microbiota acquisition.
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Affiliation(s)
- Amélie Cabirol
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
| | - Audam Chhun
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
| | - Joanito Liberti
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
| | - Lucie Kesner
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
| | - Nicolas Neuschwander
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
| | - Yolanda Schaerli
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
| | - Philipp Engel
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
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10
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Liu J, Shi J, Hu Y, Su Y, Zhang Y, Wu X. Flumethrin exposure perturbs gut microbiota structure and intestinal metabolism in honeybees (Apis mellifera). JOURNAL OF HAZARDOUS MATERIALS 2024; 480:135886. [PMID: 39298952 DOI: 10.1016/j.jhazmat.2024.135886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2024] [Revised: 09/06/2024] [Accepted: 09/16/2024] [Indexed: 09/22/2024]
Abstract
Flumethrin mitigates Varroa's harm to honeybee colonies; however, its residues in colonies threaten the fitness of honeybee hosts and gut microbiota. Our previous research has shown that flumethrin induces significant physiological effects on honeybee larvae; but the effects of flumethrin on the gut microbiota and metabolism of adult honeybees are still unknown. In this study, 1-day-old honeybees were exposed to 0, 0.01, 0.1, and 1 mg/L flumethrin for 14 days and the impacts of flumethrin on the intestinal system were evaluated. The results showed that exposure to 1 mg/L flumethrin significantly reduced honeybee survival and the activities of antioxidative enzymes (superoxide dismutase and catalase) and detoxification enzymes (glutathione S-transferase) in honeybee heads. Moreover, exposure to 0.01, 0.1, and 1 mg/L flumethrin significantly decreased the diversity of the honeybee gut microbiota. Results from untargeted metabolomics showed that long-term exposure to 0.01, 0.1, and 1 mg/L flumethrin caused changes in the metabolic pathways of honeybee gut microbes. Furthermore, increased metabolism of phenylalanine, tyrosine, and tryptophan derivatives was observed in honeybee gut microbes. These findings underscore the importance of careful consideration in using pesticides in apiculture and provide a basis for safeguarding honeybees from pollutants, considering the effects on gut microbes.
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Affiliation(s)
- Jianhui Liu
- Honeybee Research Institute, Jiangxi Agricultural University, Nanchang 330045, China; Jiangxi Province Key Laboratory of Honeybee Biology and Beekeeping, Nanchang 330045, China
| | - Jingliang Shi
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Nankai University, Tianjin 300350, China
| | - Yueyang Hu
- Honeybee Research Institute, Jiangxi Agricultural University, Nanchang 330045, China; Jiangxi Province Key Laboratory of Honeybee Biology and Beekeeping, Nanchang 330045, China
| | - Yuchen Su
- Honeybee Research Institute, Jiangxi Agricultural University, Nanchang 330045, China; Jiangxi Province Key Laboratory of Honeybee Biology and Beekeeping, Nanchang 330045, China
| | - Yonghong Zhang
- Honeybee Research Institute, Jiangxi Agricultural University, Nanchang 330045, China; Jiangxi Province Key Laboratory of Honeybee Biology and Beekeeping, Nanchang 330045, China
| | - Xiaobo Wu
- Honeybee Research Institute, Jiangxi Agricultural University, Nanchang 330045, China; Jiangxi Province Key Laboratory of Honeybee Biology and Beekeeping, Nanchang 330045, China.
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11
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Liberti J, Frank ET, Kay T, Kesner L, Monié--Ibanes M, Quinn A, Schmitt T, Keller L, Engel P. Gut microbiota influences onset of foraging-related behavior but not physiological hallmarks of division of labor in honeybees. mBio 2024; 15:e0103424. [PMID: 39072646 PMCID: PMC11389387 DOI: 10.1128/mbio.01034-24] [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: 05/04/2024] [Accepted: 06/28/2024] [Indexed: 07/30/2024] Open
Abstract
Gut microbes can impact cognition and behavior, but whether they regulate the division of labor in animal societies is unknown. We addressed this question using honeybees since they exhibit division of labor between nurses and foragers and because their gut microbiota can be manipulated. Using automated behavioral tracking and controlling for co-housing effects, we show that gut microbes influence the age at which bees start expressing foraging-like behaviors in the laboratory but have no effects on the time spent in a foraging arena and number of foraging trips. Moreover, the gut microbiota did not influence hallmarks of behavioral maturation such as body weight, cuticular hydrocarbon profile, hypopharyngeal gland size, gene expression, and the proportion of bees maturing into foragers. Overall, this study shows that the honeybee gut microbiota plays a role in controlling the onset of foraging-related behavior without permanent consequences on colony-level division of labor and several physiological hallmarks of behavioral maturation. IMPORTANCE The honeybee is emerging as a model system for studying gut microbiota-host interactions. Previous studies reported gut microbiota effects on multiple worker bee phenotypes, all of which change during behavioral maturation-the transition from nursing to foraging. We tested whether the documented effects may stem from an effect of the microbiota on behavioral maturation. The gut microbiota only subtly affected maturation: it accelerated the onset of foraging without affecting the overall proportion of foragers or their average output. We also found no effect of the microbiota on host weight, cuticular hydrocarbon (CHC) profile, hypopharyngeal gland size, and the expression of behavioral maturation-related genes. These results are inconsistent with previous studies reporting effects of the gut microbiota on bee weight and CHC profile. Our experiments revealed that co-housed bees tend to converge in behavior and physiology, suggesting that spurious associations may emerge when rearing environments are not replicated sufficiently or accounted for analytically.
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Affiliation(s)
- Joanito Liberti
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
| | - Erik T. Frank
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
- Department of Animal Ecology and Tropical Biology, University of Würzburg, Würzburg, Germany
| | - Tomas Kay
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
| | - Lucie Kesner
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
| | | | - Andrew Quinn
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
| | - Thomas Schmitt
- Department of Animal Ecology and Tropical Biology, University of Würzburg, Würzburg, Germany
| | - Laurent Keller
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
| | - Philipp Engel
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
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12
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Mitton GA, Corona M, Alburaki M, Iglesias AE, Ramos F, Fuentes G, Vázquez MM, Mitton FM, Chan P, Ruffinengo SR, Maggi MD. Synergistic effects between microplastics and glyphosate on honey bee larvae. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 111:104550. [PMID: 39245242 DOI: 10.1016/j.etap.2024.104550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 08/23/2024] [Accepted: 08/26/2024] [Indexed: 09/10/2024]
Abstract
Microplastic (MPs) pollution has emerged as a global ecological concern, however, the impact of MPs exposure, particularly in conjunction with other pollutants such as glyphosate (GLY) on honey bee remains unknown. This study investigated the effects of exposure to different concentrations of MPs and their combination with GLY on honey bee larvae development, or during the larvae period, regulation of major detoxification, antioxidant and immune genes, and oxidative stress biomarkers. Results revealed that combined exposure to MPs and GLY decreased larvae survivorship and weight, while exposure to MPs alone showed no significant differences. Both MPs and GLY alone downregulated the defensin-1 gene, but only combined exposure with GLY downregulated the hymenoptaecin gene and increased catalase enzyme activity. The data suggest a synergistic effect of MPs and GLY, leading to immunosuppression and reduced larvae survival and weight. These findings highlight potential risks of two prevalent environmental pollutants on honey bee health.
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Affiliation(s)
- G A Mitton
- Instituto de Investigaciones en Producción Sanidad y Ambiente (IIPROSAM), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Centro Científico Tecnológico Mar del Plata, CONICET, Centro de Asociación Simple CIC PBA, Funes 3350, Mar del Plata 7600, Argentina; Centro de Investigaciones en Abejas Sociales, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata 7600, Argentina.
| | - M Corona
- USDA-ARS Bee Research Laboratory, Beltsville, MD, USA
| | - M Alburaki
- USDA-ARS Bee Research Laboratory, Beltsville, MD, USA
| | - A E Iglesias
- Instituto de Investigaciones en Producción Sanidad y Ambiente (IIPROSAM), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Centro Científico Tecnológico Mar del Plata, CONICET, Centro de Asociación Simple CIC PBA, Funes 3350, Mar del Plata 7600, Argentina; Centro de Investigaciones en Abejas Sociales, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata 7600, Argentina
| | - F Ramos
- Instituto de Investigaciones en Producción Sanidad y Ambiente (IIPROSAM), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Centro Científico Tecnológico Mar del Plata, CONICET, Centro de Asociación Simple CIC PBA, Funes 3350, Mar del Plata 7600, Argentina; Centro de Investigaciones en Abejas Sociales, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata 7600, Argentina
| | - G Fuentes
- Instituto de Investigaciones en Producción Sanidad y Ambiente (IIPROSAM), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Centro Científico Tecnológico Mar del Plata, CONICET, Centro de Asociación Simple CIC PBA, Funes 3350, Mar del Plata 7600, Argentina; Centro de Investigaciones en Abejas Sociales, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata 7600, Argentina
| | - M M Vázquez
- Instituto de Investigaciones en Producción Sanidad y Ambiente (IIPROSAM), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Centro Científico Tecnológico Mar del Plata, CONICET, Centro de Asociación Simple CIC PBA, Funes 3350, Mar del Plata 7600, Argentina; Centro de Investigaciones en Abejas Sociales, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata 7600, Argentina
| | - F M Mitton
- Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), Paseo Victoria Ocampo N°1 Escollera Norte, Mar del Plata B7602HSA, Argentina; Instituto de Investigaciones Marinas y Costeras (IIMyC), UNMdP-CONICET,, Funes 3350, Mar del Plata B7602AYL, Argentina
| | - P Chan
- USDA-ARS Bee Research Laboratory, Beltsville, MD, USA
| | - S R Ruffinengo
- Instituto de Investigaciones en Producción Sanidad y Ambiente (IIPROSAM), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Centro Científico Tecnológico Mar del Plata, CONICET, Centro de Asociación Simple CIC PBA, Funes 3350, Mar del Plata 7600, Argentina; Grupo Apicultura, Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata (UNMdP), Balcarce, 7620, Argentina
| | - M D Maggi
- Instituto de Investigaciones en Producción Sanidad y Ambiente (IIPROSAM), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Centro Científico Tecnológico Mar del Plata, CONICET, Centro de Asociación Simple CIC PBA, Funes 3350, Mar del Plata 7600, Argentina; Centro de Investigaciones en Abejas Sociales, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata 7600, Argentina
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13
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Shaheen N, Miao J, Li D, Xia B, Baoyinna B, Zhao Y, Zhao J. Indole-3-Acetic Acid Protects Against Lipopolysaccharide-induced Endothelial Cell Dysfunction and Lung Injury through the Activation of USP40. Am J Respir Cell Mol Biol 2024; 71:307-317. [PMID: 38761166 PMCID: PMC11376244 DOI: 10.1165/rcmb.2024-0159oc] [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: 04/02/2024] [Accepted: 05/18/2024] [Indexed: 05/20/2024] Open
Abstract
Lung microvascular endothelial cell (EC) dysfunction is the pathological hallmark of acute respiratory distress syndrome. Heat shock protein 90 (HSP90) is a key regulator in control of endothelial barrier disruption and inflammation. Our recent study has demonstrated that ubiquitin-specific peptidase 40 (USP40) preserves endothelial integrity by targeting HSP90β for its deubiquitination and inactivation. Indole-3-acetic acid (IAA), a plant hormone of the auxin class, can also be catabolized from dietary tryptophan by the intestinal microbiota. Accumulating evidence suggests that IAA reduces oxidative stress and inflammation and promotes intestinal barrier function. However, little is known about the role of IAA in endothelial cells and acute lung injury. In this study, we investigated the role of IAA in lung endothelial cell function in the context of acute lung injury. IAA exhibited EC barrier protection against LPS-induced reduction in transendothelial electrical resistance and inflammatory responses. The underlying mechanism of IAA on EC protective effects was investigated by examining the influence of IAA on degrees of HSP90 ubiquitination and USP40 activity. We identified that IAA, acting as a potential activator of USP40, reduces HSP90 ubiquitination, thereby protecting against LPS-induced inflammation in human lung microvascular endothelial cells as well as alleviating experimental lung injury. Furthermore, the EC protective effects of IAA against LPS-induced EC dysfunction and lung injury were abolished in USP40-deficient human lung microvascular endothelial cell and lungs of USP40 EC-specific knockout (USP40cdh5-ECKO) mice. Taken together, this study reveals that IAA protects against LPS-induced EC dysfunction and lung injury through the activation of USP40.
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Affiliation(s)
- Nargis Shaheen
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, and
| | - Jiaxing Miao
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, and
| | - Donna Li
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, and
| | - Boyu Xia
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, and
| | - Boina Baoyinna
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, and
| | - Yutong Zhao
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, and
- Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Jing Zhao
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, and
- Department of Internal Medicine, The Ohio State University, Columbus, Ohio
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14
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Wang A, Guan C, Wang T, Mu G, Tuo Y. Lactobacillus-derived indole derivatives ameliorate intestinal barrier damage in rat pups with complementary food administration. Food Funct 2024; 15:8775-8787. [PMID: 39105499 DOI: 10.1039/d4fo02230k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
The consumption of complementary foods can bring about diarrhea and intestinal barrier dysfunction in infants. In this study, three different Lactobacillus strains combined with L-tryptophan (Trp) were administered to rat pups with complementary foods. Complementary food feeding caused inflammatory cell infiltration, crypt structure irregularity and goblet cell reduction in the colon tissues of the rat pups. However, the oral administration of Trp combined with Lactiplantibacillus plantarum DPUL-S164 or Limosilactobacillus reuteri DPUL-M94 significantly restored the pathological changes in the colon tissues and inhibited the expression of pro-inflammatory cytokines in the colon and ileum of the rat pups. M94 or S164 combined with Trp intervention could promote the expression of cell differentiation genes and tight junction proteins, and restore the intestinal barrier damage caused by complementary foods in rat pups by activating the aryl hydrocarbon receptors (AhR) and nuclear factor erythroid 2-related factor 2 (Nrf2) pathway. In addition, the indole-3-lactic acid (ILA), indole-3-propionic acid (IPA), or indole-3-carbaldehyde (I3C) level in the cecal contents of the rat pups increased after intervention of Trp combined with S164 or M94, which may account for the amelioration of intestinal barrier damage in rat pups administered with complementary foods. Furthermore, S164 or M94 combined with Trp intervention up-regulated the relative abundance of f_Lactobacillaceae, f_Akkermansiaceae, g_Lactobacillus, and g_Akkermansia in the intestinal tract of the rat pups. In conclusion, S164 or M94 combined with Trp intervention can ameliorate complementary food-induced intestinal barrier damage and gut flora disorder in rat pups by producing ILA, IPA, or I3C, which are AhR ligands.
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Affiliation(s)
- Arong Wang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China.
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China.
| | - Cheng Guan
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China.
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China.
| | - Tieqi Wang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China.
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China.
| | - Guangqing Mu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China.
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China.
| | - Yanfeng Tuo
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China.
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China.
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15
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Motta EVS, de Jong TK, Gage A, Edwards JA, Moran NA. Glyphosate effects on growth and biofilm formation in bee gut symbionts and diverse associated bacteria. Appl Environ Microbiol 2024; 90:e0051524. [PMID: 39012136 PMCID: PMC11337805 DOI: 10.1128/aem.00515-24] [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: 03/20/2024] [Accepted: 06/22/2024] [Indexed: 07/17/2024] Open
Abstract
Biofilm formation is a common adaptation enabling bacteria to thrive in various environments and withstand external pressures. In the context of host-microbe interactions, biofilms play vital roles in establishing microbiomes associated with animals and plants and are used by opportunistic microbes to facilitate survival within hosts. Investigating biofilm dynamics, composition, and responses to environmental stressors is crucial for understanding microbial community assembly and biofilm regulation in health and disease. In this study, we explore in vivo colonization and in vitro biofilm formation abilities of core members of the honey bee (Apis mellifera) gut microbiota. Additionally, we assess the impact of glyphosate, a widely used herbicide with antimicrobial properties, and a glyphosate-based herbicide formulation on growth and biofilm formation in bee gut symbionts as well as in other biofilm-forming bacteria associated with diverse animals and plants. Our results demonstrate that several strains of core bee gut bacterial species can colonize the bee gut, which probably depends on their ability to form biofilms. Furthermore, glyphosate exposure elicits variable effects on bacterial growth and biofilm formation. In some instances, the effects correlate with the bacteria's ability to encode a susceptible or tolerant version of the enzyme inhibited by glyphosate in the shikimate pathway. However, in other instances, no such correlation is observed. Testing the herbicide formulation further complicates comparisons, as results often diverge from glyphosate exposure alone, suggesting that co-formulants influence bacterial growth and biofilm formation. These findings highlight the nuanced impacts of environmental stressors on microbial biofilms, with both ecological and host health-related implications. IMPORTANCE Biofilms are essential for microbial communities to establish and thrive in diverse environments. In the honey bee gut, the core microbiota member Snodgrassella alvi forms biofilms, potentially aiding the establishment of other members and promoting interactions with the host. In this study, we show that specific strains of other core members, including Bifidobacterium, Bombilactobacillus, Gilliamella, and Lactobacillus, also form biofilms in vitro. We then examine the impact of glyphosate, a widely used herbicide that can disrupt the bee microbiota, on bacterial growth and biofilm formation. Our findings demonstrate the diverse effects of glyphosate on biofilm formation, ranging from inhibition to enhancement, reflecting observations in other beneficial or pathogenic bacteria associated with animals and plants. Thus, glyphosate exposure may influence bacterial growth and biofilm formation, potentially shaping microbial establishment on host surfaces and impacting health outcomes.
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Affiliation(s)
- Erick V. S. Motta
- Department of Integrative Biology, The University of Texas at Austin, Austin, Texas, USA
- Department of Entomology, Texas A&M University, College Station, Texas, USA
| | - Tyler K. de Jong
- Department of Integrative Biology, The University of Texas at Austin, Austin, Texas, USA
| | - Alejandra Gage
- Department of Integrative Biology, The University of Texas at Austin, Austin, Texas, USA
| | - Joseph A. Edwards
- Department of Integrative Biology, The University of Texas at Austin, Austin, Texas, USA
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, Texas, USA
| | - Nancy A. Moran
- Department of Integrative Biology, The University of Texas at Austin, Austin, Texas, USA
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16
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Liu F, Ye F, Yang Y, Kang Z, Liu Y, Chen W, Wang S, Kou H, Kang L, Sun J. Gut bacteria are essential for development of an invasive bark beetle by regulating glucose transport. Proc Natl Acad Sci U S A 2024; 121:e2410889121. [PMID: 39110737 PMCID: PMC11331112 DOI: 10.1073/pnas.2410889121] [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: 05/31/2024] [Accepted: 07/09/2024] [Indexed: 08/21/2024] Open
Abstract
Insects and their gut bacteria form a tight and beneficial relationship, especially in utilization of host nutrients. The red turpentine beetle (RTB), a destructive and invasive pine pest, employs mutualistic microbes to facilitate its invasion success. However, the molecular mechanism underlying the utilization of nutrients remains unknown. In this study, we found that gut bacteria are crucial for the utilization of D-glucose, a main carbon source for RTB development. Downstream assays revealed that gut bacteria-induced gut hypoxia and the secretion of riboflavin are responsible for RTB development by regulating D-glucose transport via the activation of a hypoxia-induced transcription factor 1 (Hif-1α). Further functional investigations confirmed that Hif-1α mediates glucose transport by direct upregulation of two glucose transporters (ST10 and ST27), thereby promoting RTB development. Our findings reveal how gut bacteria regulate the development of RTB, and promote our understanding of the mutualistic relationship of animals and their gut bacteria.
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Affiliation(s)
- Fanghua Liu
- College of Life Sciences/Hebei Basic Science Center for Biotic Interactions, Institute of Life Science and Green Development, Hebei University, Baoding071002, China
| | - Fangyuan Ye
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, Chaoyang District100101, China
| | - Yunwen Yang
- College of Life Sciences/Hebei Basic Science Center for Biotic Interactions, Institute of Life Science and Green Development, Hebei University, Baoding071002, China
| | - Zhiwei Kang
- College of Life Sciences/Hebei Basic Science Center for Biotic Interactions, Institute of Life Science and Green Development, Hebei University, Baoding071002, China
| | - Yang Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, Haidian District100193, China
| | - Wei Chen
- College of Life Sciences/Hebei Basic Science Center for Biotic Interactions, Institute of Life Science and Green Development, Hebei University, Baoding071002, China
| | - Saige Wang
- College of Life Sciences/Hebei Basic Science Center for Biotic Interactions, Institute of Life Science and Green Development, Hebei University, Baoding071002, China
| | - Hongru Kou
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, Chaoyang District100101, China
| | - Le Kang
- College of Life Sciences/Hebei Basic Science Center for Biotic Interactions, Institute of Life Science and Green Development, Hebei University, Baoding071002, China
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, Chaoyang District100101, China
| | - Jianghua Sun
- College of Life Sciences/Hebei Basic Science Center for Biotic Interactions, Institute of Life Science and Green Development, Hebei University, Baoding071002, China
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, Chaoyang District100101, China
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17
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Wang K, Zheng M, Cai M, Zhang Y, Fan Y, Lin Z, Wang Z, Niu Q, Ji T. Possible interactions between gut microbiome and division of labor in honey bees. Ecol Evol 2024; 14:e11707. [PMID: 39193168 PMCID: PMC11348130 DOI: 10.1002/ece3.11707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 06/19/2024] [Accepted: 06/21/2024] [Indexed: 08/29/2024] Open
Abstract
Recent studies have provided new insights into the role of the microbiome in shaping host behavior. However, the relationship between the temporal division of labor among honey bees (Apis mellifera) and their gut microbial community has not been widely studied. Therefore, we aimed to evaluate the link between the gut microbiome and division of labor in honey bees by examining the microbial absolute abundance and relative composition of 7-day-old nurse bees and 28-day-old forager bees from a natural hive, as well as those of worker bees of the same 14-day-old age showing different behaviors in a manipulated hive. We found that forager bees had fewer core bacteria, particularly gram-positive fermentative genera such as Lactobacillus and Bifidobacterium, with Bifidobacterium asteroides being the most sensitive to host behavioral tasks. Our results showed that forager bees have lower gut community stability compared to nurse bees, suggesting that their gut community is more susceptible to invasion by non-core members. Furthermore, a pollen limitation experiment using caged honey bees indicated that dietary changes during behavioral shifts may be a driving factor in honey bee microbial diversity. This study contributes to a greater understanding of the interaction between the gut microbiome and behavioral tasks and provides a foundation for future assays.
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Affiliation(s)
- Kang Wang
- College of Animal Science and TechnologyYangzhou UniversityYangzhouChina
| | - Ming Zheng
- College of Animal Science and TechnologyYangzhou UniversityYangzhouChina
| | - Minqi Cai
- College of Animal Science and TechnologyYangzhou UniversityYangzhouChina
| | - Yi Zhang
- College of Animal Science and TechnologyYangzhou UniversityYangzhouChina
| | - Yuanchan Fan
- College of Animal Science and TechnologyYangzhou UniversityYangzhouChina
| | - Zheguang Lin
- College of Animal Science and TechnologyYangzhou UniversityYangzhouChina
| | - Zhi Wang
- Key Laboratory for bee Genetics and BreedingJilin Provincial Institute of Apicultural SciencesJilinChina
| | - Qingsheng Niu
- Key Laboratory for bee Genetics and BreedingJilin Provincial Institute of Apicultural SciencesJilinChina
| | - Ting Ji
- College of Animal Science and TechnologyYangzhou UniversityYangzhouChina
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18
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Luo S, Zhang X, Zhou X. Temporospatial dynamics and host specificity of honeybee gut bacteria. Cell Rep 2024; 43:114408. [PMID: 38935504 DOI: 10.1016/j.celrep.2024.114408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 06/10/2024] [Accepted: 06/11/2024] [Indexed: 06/29/2024] Open
Abstract
Honeybees are important pollinators worldwide, with their gut microbiota playing a crucial role in maintaining their health. The gut bacteria of honeybees consist of primarily five core lineages that are spread through social interactions. Previous studies have provided a basic understanding of the composition and function of the honeybee gut microbiota, with recent advancements focusing on analyzing diversity at the strain level and changes in bacterial functional genes. Research on honeybee gut microbiota across different regions globally has provided insights into microbial ecology. Additionally, recent findings have shed light on the mechanisms of host specificity of honeybee gut bacteria. This review explores the temporospatial dynamics in honeybee gut microbiota, discussing the reasons and mechanisms behind these fluctuations. This synopsis provides insights into host-microbe interactions and is invaluable for honeybee health.
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Affiliation(s)
- Shiqi Luo
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Xue Zhang
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Xin Zhou
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
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Zeng J, Li Y, Yan J, Chang R, Xu M, Zhou G, Meng J, Liu D, Mao Z, Yang Y. Gut microbiota from patients with Parkinson's disease causes motor deficits in honeybees. Front Microbiol 2024; 15:1418857. [PMID: 39070266 PMCID: PMC11272988 DOI: 10.3389/fmicb.2024.1418857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 06/25/2024] [Indexed: 07/30/2024] Open
Abstract
Objective Parkinson's disease (PD) is possibly caused by genetic factors, environmental factors, and gut microbiota dysbiosis. This study aims to explore whether the microbiota contributes to the behavior abnormalities of PD. Methods We transplanted gut microbiota from patients with PD or healthy controls (HC) into microbiota-free honeybees. We also established two more groups, namely the rotenone (ROT) group, in which PD-like symptoms of honeybees were induced by rotenone, and the conventional (CV) group, in which honeybees were colonized with conventional gut microbiota. The climbing assay was performed to assess the motor capabilities of honeybees. Histopathological examination was conducted to evaluate the integrity of gut mucosa. Tyrosine hydroxylase (TH) gene expression levels and dopamine (DA) concentrations in the brain were also examined. Additionally, metagenomics and full-length 16S rRNA analyses were performed to identify alterations in gut microbiota profiles, both in PD patients and honeybees. Results Honeybees in the PD and ROT groups exhibited slower climbing speeds, downregulated TH gene expression, and impaired gut barriers. Both the HC and PD groups of honeybees successfully harbored a portion of gut microbiota from corresponding human donors, and differences in microbial composition were identified. Morganella morganii and Erysipelatoclostridium ramosum exhibited significantly increased relative abundance in the HC group, while Dorea longicatena, Collinsella aerofaciens, Lactococcus garvieae, Holdemanella biformis, Gemmiger formicilis, and Blautia obeum showed significantly increased relative abundance in the PD group. Functional predictions of microbial communities in the PD group indicated an increased synthesis of hydrogen sulfide and methane. Conclusion A novel PD model was induced in honeybees with rotenone and gut microbiota from PD patients. This study linked PD-related behaviors to altered gut microbiota, highlighting a potential gut microbiota-brain axis involvement in PD pathogenesis. We identify previously unrecognized associations of Dorea longicatena, Collinsella aerofaciens, Lactococcus garvieae, Holdemanella biformis, Gemmiger formicilis, and Blautia obeum with PD. Additionally, pathways related to hydrogen sulfide and methane synthesis have been previously suggested as potential contributors to the development of PD, and our research further supports this hypothesis.
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Affiliation(s)
- Jiaqi Zeng
- Microbiota Division, Department of Gastroenterology and Hepatology, First Medical Center, Chinese PLA General Hospital, Beijing, China
- Medical School of Chinese PLA, Beijing, China
| | - Yiyuan Li
- Microbiota Division, Department of Gastroenterology and Hepatology, First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Jingshuang Yan
- Microbiota Division, Department of Gastroenterology and Hepatology, First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Ruqi Chang
- Microbiota Division, Department of Gastroenterology and Hepatology, First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Mengqi Xu
- Microbiota Division, Department of Gastroenterology and Hepatology, First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Guanzhou Zhou
- Microbiota Division, Department of Gastroenterology and Hepatology, First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Jie Meng
- Department of Neurosurgery, First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Di Liu
- Department of Neurosurgery, First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Zhiqi Mao
- Department of Neurosurgery, First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Yunsheng Yang
- Microbiota Division, Department of Gastroenterology and Hepatology, First Medical Center, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
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20
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Sui Y, Feng X, Ma Y, Zou Y, Liu Y, Huang J, Zhu X, Wang J. BHBA attenuates endoplasmic reticulum stress-dependent neuroinflammation via the gut-brain axis in a mouse model of heat stress. CNS Neurosci Ther 2024; 30:e14840. [PMID: 38973202 PMCID: PMC11228358 DOI: 10.1111/cns.14840] [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: 03/31/2024] [Revised: 06/12/2024] [Accepted: 06/25/2024] [Indexed: 07/09/2024] Open
Abstract
BACKGROUND Heat stress (HS) commonly occurs as a severe pathological response when the body's sensible temperature exceeds its thermoregulatory capacity, leading to the development of chronic brain inflammation, known as neuroinflammation. Emerging evidence suggests that HS leads to the disruption of the gut microbiota, whereas abnormalities in the gut microbiota have been demonstrated to affect neuroinflammation. However, the mechanisms underlying the effects of HS on neuroinflammation are poorly studied. Meanwhile, effective interventions have been unclear. β-Hydroxybutyric acid (BHBA) has been found to have neuroprotective and anti-inflammatory properties in previous studies. This study aims to explore the modulatory effects of BHBA on neuroinflammation induced by HS and elucidate the underlying molecular mechanisms. METHODS An in vivo and in vitro model of HS was constructed under the precondition of BHBA pretreatment. The modulatory effects of BHBA on HS-induced neuroinflammation were explored and the underlying molecular mechanisms were elucidated by flow cytometry, WB, qPCR, immunofluorescence staining, DCFH-DA fluorescent probe assay, and 16S rRNA gene sequencing of colonic contents. RESULTS Heat stress was found to cause gut microbiota disruption in HS mouse models, and TM7 and [Previotella] spp. may be the best potential biomarkers for assessing the occurrence of HS. Fecal microbiota transplantation associated with BHBA effectively reversed the disruption of gut microbiota in HS mice. Moreover, BHBA may inhibit microglia hyperactivation, suppress neuroinflammation (TNF-α, IL-1β, and IL-6), and reduce the expression of cortical endoplasmic reticulum stress (ERS) markers (GRP78 and CHOP) mainly through its modulatory effects on the gut microbiota (TM7, Lactobacillus spp., Ruminalococcus spp., and Prevotella spp.). In vitro experiments revealed that BHBA (1 mM) raised the expression of the ERS marker GRP78, enhanced cellular activity, and increased the generation of reactive oxygen species (ROS) and anti-inflammatory cytokines (IL-10), while also inhibiting HS-induced apoptosis, ROS production, and excessive release of inflammatory cytokines (TNF-α and IL-1β) in mouse BV2 cells. CONCLUSION β-Hydroxybutyric acid may be an effective agent for preventing neuroinflammation in HS mice, possibly due to its ability to inhibit ERS and subsequent microglia neuroinflammation via the gut-brain axis. These findings lay the groundwork for future research and development of BHBA as a preventive drug for HS and provide fresh insights into techniques for treating neurological illnesses by modifying the gut microbiota.
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Affiliation(s)
- Yuzhen Sui
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Xiao Feng
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Yue Ma
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Yimeng Zou
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Yanli Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Jian Huang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Xiaoyan Zhu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Jianguo Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
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21
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Guo D, Wang Y, Li Z, Zhang DX, Wang C, Wang H, Liu Z, Liu F, Guo X, Wang N, Xu B, Gao Z. Effects of abamectin nanocapsules on bees through host physiology, immune function, and gut microbiome. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 930:172738. [PMID: 38670362 DOI: 10.1016/j.scitotenv.2024.172738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 04/18/2024] [Accepted: 04/22/2024] [Indexed: 04/28/2024]
Abstract
Pesticide usage is a common practice to increase crop yields. Nevertheless, the existence of pesticide residues in the surrounding environment presents a significant hazard to pollinators, specifically the potential undisclosed dangers related to emerging nanopesticides. This study examines the impact of abamectin nanocapsules (AbaNCs), created through electrostatic self-assembly, as an insecticide on honey bees. It was determined that AbaNCs upregulated detoxification genes, including CYP450, as well as antioxidant and immune genes in honey bees. Furthermore, AbaNCs affected the activity of crucial enzymes such as superoxide dismutase (SOD). Although no apparent damage was observed in bee gut tissue, AbaNCs significantly decreased digestive enzyme activity. Microbiome sequencing revealed that AbaNCs disrupted gut microbiome, resulting in a reduction of beneficial bacteria such as Bifidobacterium and Lactobacillus. Additionally, these changes in the gut microbiome were associated with decreased activity of digestive enzymes, including lipase. This study enhances our understanding of the impact of nanopesticides on pollinating insects. Through the revelation of the consequences arising from the utilization of abamectin nanocapsules, we have identified potential stress factors faced by these pollinators, enabling the implementation of improved protective measures.
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Affiliation(s)
- Dezheng Guo
- College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China
| | - Ying Wang
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China
| | - Zhongyu Li
- College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China
| | - Da-Xia Zhang
- College of Plant Protection, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China
| | - Chen Wang
- College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China
| | - Hongfang Wang
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China
| | - Zhenguo Liu
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China
| | - Feng Liu
- College of Plant Protection, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China
| | - Xingqi Guo
- College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China
| | - Ningxin Wang
- College of Plant Protection, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China.
| | - Baohua Xu
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China.
| | - Zheng Gao
- College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China.
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Yu Q, Liu Y, Liu S, Li S, Zhai Y, Zhang Q, Zheng L, Zheng H, Zhai Y, Wang X. Lactobacillus melliventris promotes hive productivity and immune functionality in Bombus terrestris performance in the greenhouse. INSECT SCIENCE 2024; 31:911-926. [PMID: 37830269 DOI: 10.1111/1744-7917.13281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 08/18/2023] [Accepted: 09/15/2023] [Indexed: 10/14/2023]
Abstract
Bumblebees are important pollinators in agricultural ecosystems, but their abundance is declining globally. There is an urgent need to protect bumblebee health and their pollination services. Bumblebees possess specialized gut microbiota with potential to be used as probiotics to help defend at-risk bumblebee populations. However, evidence for probiotic benefits on bumblebees is lacking. Here, we evaluated how supplementation with Lactobacillus melliventris isolated from bumblebee gut affected the colony development of Bombus terrestris. This native strain colonized robustly and persisted long-term in bumblebees, leading to a significantly higher quality of offspring. Subsequently, the tyrosine pathway was upregulated in the brain and fat body, while the Wnt and mTOR pathways of the gut were downregulated. Notably, the field experiment in the greenhouse revealed the supplementation of L. melliventris led to a 2.5-fold increase in the bumblebee survival rate and a more than 10% increase in the number of flowers visited, indicating a better health condition and pollination ability in field conditions. Our study represents a first screening for the potential use of the native gut member, L. melliventris, as probiotic strains in hive supplement for bumblebee breeding, which may be a practical approach to improve immunity and hive health.
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Affiliation(s)
- Qianhui Yu
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
- Key Laboratory of Natural Enemies Insects, Ministry of Agriculture and Rural Affairs, Jinan, China
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Yan Liu
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
- Key Laboratory of Natural Enemies Insects, Ministry of Agriculture and Rural Affairs, Jinan, China
| | - Shanshan Liu
- BGI-Qingdao, BGI-Shenzhen, Qingdao, Shandong, China
| | - Shaogang Li
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Yifan Zhai
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Qingchao Zhang
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
- Key Laboratory of Natural Enemies Insects, Ministry of Agriculture and Rural Affairs, Jinan, China
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Li Zheng
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
- Key Laboratory of Natural Enemies Insects, Ministry of Agriculture and Rural Affairs, Jinan, China
| | - Hao Zheng
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
- Key Laboratory of Natural Enemies Insects, Ministry of Agriculture and Rural Affairs, Jinan, China
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Yifan Zhai
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
- Key Laboratory of Natural Enemies Insects, Ministry of Agriculture and Rural Affairs, Jinan, China
| | - Xiaofei Wang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
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23
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Sattayawat P, Inwongwan S, Noirungsee N, Li J, Guo J, Disayathanoowat T. Engineering Gut Symbionts: A Way to Promote Bee Growth? INSECTS 2024; 15:369. [PMID: 38786925 PMCID: PMC11121833 DOI: 10.3390/insects15050369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Accepted: 05/16/2024] [Indexed: 05/25/2024]
Abstract
Bees play a crucial role as pollinators, contributing significantly to ecosystems. However, the honeybee population faces challenges such as global warming, pesticide use, and pathogenic microorganisms. Promoting bee growth using several approaches is therefore crucial for maintaining their roles. To this end, the bacterial microbiota is well-known for its native role in supporting bee growth in several respects. Maximizing the capabilities of these microorganisms holds the theoretical potential to promote the growth of bees. Recent advancements have made it feasible to achieve this enhancement through the application of genetic engineering. In this review, we present the roles of gut symbionts in promoting bee growth and collectively summarize the engineering approaches that would be needed for future applications. Particularly, as the engineering of bee gut symbionts has not been advanced, the dominant gut symbiotic bacteria Snodgrassella alvi and Gilliamella apicola are the main focus of the paper, along with other dominant species. Moreover, we propose engineering strategies that will allow for the improvement in bee growth with listed gene targets for modification to further encourage the use of engineered gut symbionts to promote bee growth.
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Affiliation(s)
- Pachara Sattayawat
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
- Research Center of Deep Technology in Beekeeping and Bee Products for Sustainable Development Goals (SMART BEE SDGs), Chiang Mai University, Chiang Mai 50200, Thailand
| | - Sahutchai Inwongwan
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
- Research Center of Deep Technology in Beekeeping and Bee Products for Sustainable Development Goals (SMART BEE SDGs), Chiang Mai University, Chiang Mai 50200, Thailand
| | - Nuttapol Noirungsee
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
- Research Center of Deep Technology in Beekeeping and Bee Products for Sustainable Development Goals (SMART BEE SDGs), Chiang Mai University, Chiang Mai 50200, Thailand
| | - Jilian Li
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jun Guo
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Terd Disayathanoowat
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
- Research Center of Deep Technology in Beekeeping and Bee Products for Sustainable Development Goals (SMART BEE SDGs), Chiang Mai University, Chiang Mai 50200, Thailand
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24
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Li D, Wang L, Wang L, Gou Y, Luo B, Yan R, Liu H. The species and abundance of gut bacteria both positively impact Phortica okadai behavior. Parasit Vectors 2024; 17:217. [PMID: 38734668 PMCID: PMC11088764 DOI: 10.1186/s13071-024-06297-3] [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: 02/04/2024] [Accepted: 04/22/2024] [Indexed: 05/13/2024] Open
Abstract
BACKGROUND Gut bacteria, which serve as essential modulators, exert a significant impact on insect physiology and behavior and have substantial application potential in pest management. The dynamics of gut bacteria and their impact on Phortica okadai behavior remain unclear. METHODS In this study, the dynamics of gut bacteria at different developmental stages in P. okadai were analyzed using 16S ribosomal RNA (rRNA) gene sequencing, and the species and abundance of gut bacteria that affect host behavior were examined via behavioral experiments. RESULTS A total of 19 phyla, 29 classes, 74 orders, 101 species, and 169 genera were identified. The results of the behavioral experiments indicated that the species Lactiplantibacillus argentoratensis, Acetobacter tropicalis, Leuconostoc citreum, and Levilactobacillus brevis effectively influenced the feeding preference of P. okadai, and the single-bacterium-seeded P. okadai exhibited feeding preferences distinct from those of the germ-free (GF) and wild-type P. okadai. CONCLUSIONS The species and relative abundance of gut bacteria together positively impact P. okadai behavior. Lactiplantibacillus argentoratensis, as the most attractive bacteria to P. okadai, presents opportunities for novel pest control strategies targeting this vector and agricultural pest.
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Affiliation(s)
- Di Li
- Department of Parasitology, Zunyi Medical University, Zunyi, 563000, China
| | - Lingjun Wang
- Department of Parasitology, Zunyi Medical University, Zunyi, 563000, China
- NHC Key Laboratory of Parasite and Vector Biology, National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, 200025, China
| | - Liang Wang
- Department of Parasitology, Zunyi Medical University, Zunyi, 563000, China
| | - Yanting Gou
- Department of Parasitology, Zunyi Medical University, Zunyi, 563000, China
| | - Bo Luo
- Department of Parasitology, Zunyi Medical University, Zunyi, 563000, China
| | - Rong Yan
- Department of Parasitology, Zunyi Medical University, Zunyi, 563000, China
| | - Hui Liu
- Department of Parasitology, Zunyi Medical University, Zunyi, 563000, China.
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25
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Shi J, Liu C, Zhang Y, Wu X. Early larval exposure to flumethrin induces long-term impacts on survival and memory behaviors of adult worker bees Apis mellifera. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 201:105909. [PMID: 38685230 DOI: 10.1016/j.pestbp.2024.105909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 04/08/2024] [Accepted: 04/09/2024] [Indexed: 05/02/2024]
Abstract
Flumethrin has been supplied as an acaricide for Varroa mite control in world-wide apiculture due to its low lethal effects on honey bees. However, little is known about the effects of short-term flumethrin exposure in the larval stage on adult life stage of bees involving survival status, foraging and memory-related behaviors. Here, we found that exposure to flumethrin at 1 mg/L during larval stage reduced survival and altered foraging activities including induced precocious foraging activity, decreased foraging trips and time, and altered rotating day-off status of adult worker bees using the radio frequency identification system. Furthermore, larval exposure at 1 mg/L flumethrin influenced the correct proboscis extension responses of 7-day-old worker bees and decreased homing rates of 20-day-old worker bees, suggesting that 1 mg/L flumethrin exposure at larval stage could affect memory-related behaviors of adult bees; meanwhile, three genes related to memory (GluRA, Nmdar1 and Tyr1) were certainly down-regulated varying different flumethrin concentrations (0.01, 0.1, and 1 mg/L). Combined with transcriptomic sequencing, differentially expressed genes involved in olfactory memory of adult bees were completely down-regulated under flumethrin exposure. Our findings highlight the unprecedented impact of short-term exposure of insecticides on honey bees in long-term health monitoring under field conditions.
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Affiliation(s)
- Jingliang Shi
- Honeybee Research Institute, Jiangxi Agricultural University, Nanchang 330045, China; Jiangxi Province Key Laboratory of Honeybee Biology and Beekeeping, Nanchang 330045, China; College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Nankai University, Tianjin 300350, China
| | - Chen Liu
- Honeybee Research Institute, Jiangxi Agricultural University, Nanchang 330045, China; Jiangxi Province Key Laboratory of Honeybee Biology and Beekeeping, Nanchang 330045, China
| | - Yonghong Zhang
- Honeybee Research Institute, Jiangxi Agricultural University, Nanchang 330045, China; Jiangxi Province Key Laboratory of Honeybee Biology and Beekeeping, Nanchang 330045, China
| | - Xiaobo Wu
- Honeybee Research Institute, Jiangxi Agricultural University, Nanchang 330045, China; Jiangxi Province Key Laboratory of Honeybee Biology and Beekeeping, Nanchang 330045, China.
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26
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Hu J, Bi R, Luo Y, Wu K, Jin S, Liu Z, Jia Y, Mao CX. The gut microbiome promotes locomotion of Drosophila larvae via octopamine signaling. INSECT SCIENCE 2024. [PMID: 38643372 DOI: 10.1111/1744-7917.13370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 03/10/2024] [Accepted: 03/24/2024] [Indexed: 04/22/2024]
Abstract
The gut microbiome is a key partner of animals, influencing various aspects of their physiology and behaviors. Among the diverse behaviors regulated by the gut microbiome, locomotion is vital for survival and reproduction, although the underlying mechanisms remain unclear. Here, we reveal that the gut microbiome modulates the locomotor behavior of Drosophila larvae via a specific neuronal type in the brain. The crawling speed of germ-free (GF) larvae was significantly reduced compared to the conventionally reared larvae, while feeding and excretion behaviors were unaffected. Recolonization with Acetobacter and Lactobacillus can fully and partially rescue the locomotor defects in GF larvae, respectively, probably due to the highest abundance of Acetobacter as a symbiotic bacterium in the larval gut, followed by Lactobacillus. Moreover, the gut microbiome promoted larval locomotion, not by nutrition, but rather by enhancing the brain levels of tyrosine decarboxylase 2 (Tdc2), which is an enzyme that synthesizes octopamine (OA). Overexpression of Tdc2 rescued locomotion ability in GF larvae. These findings together demonstrate that the gut microbiome specifically modulates larval locomotor behavior through the OA signaling pathway, revealing a new mechanism underlying larval locomotion regulated by the gut microbiome.
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Affiliation(s)
- Juncheng Hu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Ran Bi
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Yuxuan Luo
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Kaihong Wu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Shan Jin
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Zhihua Liu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Yicong Jia
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Chuan-Xi Mao
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
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Zhao M, Gao Z, Kuang C, Chen X. Partial root-zone drying combined with nitrogen treatments mitigates drought responses in rice. FRONTIERS IN PLANT SCIENCE 2024; 15:1381491. [PMID: 38685964 PMCID: PMC11056961 DOI: 10.3389/fpls.2024.1381491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 03/27/2024] [Indexed: 05/02/2024]
Abstract
Drought is a major stress affecting rice yields. Combining partial root-zone drying (PRD) and different nitrogen fertilizers reduces the damage caused by water stress in rice. However, the underlying molecular mechanisms remain unclear. In this study, we combined treatments with PRD and ammonia:nitrate nitrogen at 0:100 (PRD0:100) and 50:50 (PRD50:50) ratios or PEG and nitrate nitrogen at 0:100 (PEG0:100) ratios in rice. Physiological, transcriptomic, and metabolomic analyses were performed on rice leaves to identify key genes involved in water stress tolerance under different nitrogen forms and PRD pretreatments. Our results indicated that, in contrast to PRD0:100, PRD50:50 elevated the superoxide dismutase activity in leaves to accelerate the scavenging of ROS accumulated by osmotic stress, attenuated the degree of membrane lipid peroxidation, stabilized photosynthesis, and elevated the relative water content of leaves to alleviate the drought-induced osmotic stress. Moreover, the alleviation ability was better under PRD50:50 treatment than under PRD0:100. Integrated transcriptome and metabolome analyses of PRD0:100 vs PRD50:50 revealed that the differences in PRD involvement in water stress tolerance under different nitrogen pretreatments were mainly in photosynthesis, oxidative stress, nitrogen metabolism process, phytohormone signaling, and biosynthesis of other secondary metabolites. Some key genes may play an important role in these pathways, including OsGRX4, OsNDPK2, OsGS1;1, OsNR1.2, OsSUS7, and YGL8. Thus, the osmotic stress tolerance mediated by PRD and nitrogen cotreatment is influenced by different nitrogen forms. Our results provide new insights into osmotic stress tolerance mediated by PRD and nitrogen cotreatment, demonstrate the essential role of nitrogen morphology in PRD-induced molecular regulation, and identify genes that contribute to further improving stress tolerance in rice.
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Affiliation(s)
- Minhua Zhao
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in the Northern Region, College of Biology and Agriculture, Shaoguan College, Shaoguan, Guangdong, China
- Guangdong Engineering Technology Research Center for Efficient Utilization of Water and Soil Resources in North Region, College of Biology and Agriculture, Shaoguan College, Shaoguan, Guangdong, China
- School of Biology and Agriculture, College of Biology and Agriculture, Shaoguan College, Shaoguan University, Shaoguan, Guangdong, China
| | - Zhihong Gao
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in the Northern Region, College of Biology and Agriculture, Shaoguan College, Shaoguan, Guangdong, China
- Guangdong Engineering Technology Research Center for Efficient Utilization of Water and Soil Resources in North Region, College of Biology and Agriculture, Shaoguan College, Shaoguan, Guangdong, China
- School of Biology and Agriculture, College of Biology and Agriculture, Shaoguan College, Shaoguan University, Shaoguan, Guangdong, China
| | - Chunyi Kuang
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in the Northern Region, College of Biology and Agriculture, Shaoguan College, Shaoguan, Guangdong, China
- Guangdong Engineering Technology Research Center for Efficient Utilization of Water and Soil Resources in North Region, College of Biology and Agriculture, Shaoguan College, Shaoguan, Guangdong, China
- School of Biology and Agriculture, College of Biology and Agriculture, Shaoguan College, Shaoguan University, Shaoguan, Guangdong, China
| | - Xiaoyuan Chen
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in the Northern Region, College of Biology and Agriculture, Shaoguan College, Shaoguan, Guangdong, China
- Guangdong Engineering Technology Research Center for Efficient Utilization of Water and Soil Resources in North Region, College of Biology and Agriculture, Shaoguan College, Shaoguan, Guangdong, China
- School of Biology and Agriculture, College of Biology and Agriculture, Shaoguan College, Shaoguan University, Shaoguan, Guangdong, China
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28
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He Y, Wang X, Liu Q, Liu H, Yang S. Exploring the mechanism of clomiphene citrate to improve ovulation disorder in PCOS rats based on follicular fluid metabolomics. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:2281-2296. [PMID: 37815607 DOI: 10.1007/s00210-023-02750-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 09/26/2023] [Indexed: 10/11/2023]
Abstract
To examine the effects of clomiphene citrate (CC) on follicular fluid metabolites and related metabolic pathways in rats with polycystic ovary syndrome (PCOS) using non-targeted metabolomics and determine how CC treats ovulation disorder in PCOS. The Sprague Dawley rats were randomly divided into control, model, and CC groups. A PCOS model was established with letrozole. Body weight, ovarian weight, estrus cycles, serum hormone levels, and ovary histopathology of the rats were collected for further evaluation. Moreover, through ultra-performance liquid chromatography-mass spectrometry, the study of follicular fluid metabolites revealed the mechanism of action of CC. CC reduced ovarian weight and regulated estrous cycles and serum hormone levels in PCOS rats but did not affect their body weight. Moreover, the metabolomic results showed that CC adjusted 153 metabolites, among which 16 cross metabolites like testosterone, androstenedione, 17α-hydroxyprogesterone, and cholic acid were considered as potential biomarkers for CC to improve ovulation disorders in PCOS rats. Kyoto Encyclopedia of Genes and Genomes pathway enrichment also showed that the CC group mainly engaged in tryptophan metabolism and steroid hormone biosynthesis. CC can improve ovulation disorders in rats, and its mechanism is related to the regulation of the secretion of serum hormone and follicular fluid metabolites and the amelioration of multi-metabolic pathways.
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Affiliation(s)
- Yiqing He
- College of Integrated Traditional Chinese and Western Medicine, Hunan University of Chinese Medicine, Changsha, 410208, Hunan, China
| | - Xi Wang
- College of Integrated Traditional Chinese and Western Medicine, Hunan University of Chinese Medicine, Changsha, 410208, Hunan, China
| | - Quan Liu
- College of Integrated Traditional Chinese and Western Medicine, Hunan University of Chinese Medicine, Changsha, 410208, Hunan, China
| | - Huiping Liu
- Hunan University of Chinese Medicine, Changsha, 410208, Hunan, China
| | - Shuo Yang
- Hunan University of Chinese Medicine, Changsha, 410208, Hunan, China.
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29
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Ye H, Jiang J, Lei Y, Fang N, Luo Y, Cheng Y, Li Y, Wang X, He H, Yu J, Xu Z, Zhang C. A systemic study of cyenopyrafen in strawberry cultivation system: Efficacy, residue behavior, and impact on honeybees (Apis mellifera L.). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 346:123601. [PMID: 38373624 DOI: 10.1016/j.envpol.2024.123601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 02/16/2024] [Accepted: 02/16/2024] [Indexed: 02/21/2024]
Abstract
The pesticide application method is one of the important factors affecting its effectiveness and residues, and the risk of pesticides to non-target organisms. To elucidate the effect of application methods on the efficacy and residue of cyenopyrafen, and the toxic effects on pollinators honeybees in strawberry cultivation, the efficacy and residual behavior of cyenopyrafen were investigated using foliar spray and backward leaf spray in field trials. The results showed that the initial deposition of cyenopyrafen using backward leaf spray on target leaves reached 5.06-9.81 mg/kg at the dose of 67.5-101.25 g a.i./ha, which was higher than that using foliar spray (2.62-3.71 mg/kg). The half-lives of cyenopyrafen in leaves for foliar and backward leaf spray was 2.3-3.3 and 5.3-5.9 d, respectively. The residues (10 d) of cyenopyrafen in leaves after backward leaf spray was 1.41-3.02 mg/kg, which was higher than that after foliar spraying (0.25-0.37 mg/kg). It is the main reason for the better efficacy after backward leaf spray. However, the residues (10 d) in strawberry after backward leaf spray and foliar spray was 0.04-0.10 and < 0.01 mg/kg, which were well below the established maximum residue levels of cyenopyrafen in Japan and South Korea for food safety. To further investigate the effects of cyenopyrafen residues after backward leaf spray application on pollinator honeybees, sublethal effects of cyenopyrafen on honeybees were studied. The results indicated a significant inhibition in the detoxification metabolic enzymes of honeybees under continuous exposure of cyenopyrafen (0.54 and 5.4 mg/L) over 8 d. The cyenopyrafen exposure also alters the composition of honeybee gut microbiota, such as increasing the relative abundance of Rhizobiales and decreasing the relative abundance of Acetobacterales. The comprehensive data on cyenopyrafen provide basic theoretical for environmental and ecological risk assessment, while backward leaf spray proved to be effective and safe for strawberry cultivation.
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Affiliation(s)
- Hui Ye
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ministry of Agriculture and Rural Affairs Key Laboratory for Pesticide Residue Detection, Institute of Agro-Products Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China
| | - Jinhua Jiang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ministry of Agriculture and Rural Affairs Key Laboratory for Pesticide Residue Detection, Institute of Agro-Products Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China
| | - Yuan Lei
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ministry of Agriculture and Rural Affairs Key Laboratory for Pesticide Residue Detection, Institute of Agro-Products Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China
| | - Nan Fang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ministry of Agriculture and Rural Affairs Key Laboratory for Pesticide Residue Detection, Institute of Agro-Products Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China
| | - Yuqin Luo
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ministry of Agriculture and Rural Affairs Key Laboratory for Pesticide Residue Detection, Institute of Agro-Products Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China
| | - Youpu Cheng
- Tianjin Agricultural University, Tianjin, 300392, PR China
| | - Yanjie Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ministry of Agriculture and Rural Affairs Key Laboratory for Pesticide Residue Detection, Institute of Agro-Products Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China; Xianghu Laboratory, Hangzhou, 311231, PR China
| | - Xiangyun Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ministry of Agriculture and Rural Affairs Key Laboratory for Pesticide Residue Detection, Institute of Agro-Products Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China
| | - Hongmei He
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ministry of Agriculture and Rural Affairs Key Laboratory for Pesticide Residue Detection, Institute of Agro-Products Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China
| | - Jianzhong Yu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ministry of Agriculture and Rural Affairs Key Laboratory for Pesticide Residue Detection, Institute of Agro-Products Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China
| | - Zhenlan Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ministry of Agriculture and Rural Affairs Key Laboratory for Pesticide Residue Detection, Institute of Agro-Products Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China
| | - Changpeng Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ministry of Agriculture and Rural Affairs Key Laboratory for Pesticide Residue Detection, Institute of Agro-Products Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, PR China.
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30
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Ren Y, Dong W, Bu W, Xue H. Identification and expression patterns of somatic piRNAs and PIWI genes in Riptortus pedestris (Hemiptera: Alydidae). ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2024; 115:e22107. [PMID: 38591567 DOI: 10.1002/arch.22107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/29/2024] [Accepted: 03/15/2024] [Indexed: 04/10/2024]
Abstract
RNA interference (RNAi)-based gene silencing is a feasible and sustainable technology for the management of hemipteran pests by double-stranded RNA involvement, including small-interfering RNA, microRNA, and Piwi-interacting RNA (piRNA) pathways, that may help to decrease the usage of chemical insecticides. However, only a few data are available on the somatic piRNAs and their biogenesis genes in Riptortus pedestris, which serves as a significant pest of soybean (Glycine max). In this study, two family members of the PIWI gene were identified and characterized in R. pedestris, containing Argonaute3 (RpAgo3) and Aubergine (RpAub) genes with conserved protein domains, and their clusters were validated by phylogenetic analysis. In addition, they were widely expressed in all developmental stages of the whole body of R. pedestris and had lower expression levels in R. pedestris guts under different rearing conditions based on previous transcriptome sequencing. Furthermore, abundant clean reads were filtered to a total number of 45,998 piRNAs with uridine bias at the first nucleotide (nt) position and 26-32 nt in length by mapping onto the reference genome of R. pedestris according to our previous whole-transcriptome sequencing. Finally, our data revealed that gut bacterial changes were significantly positively or negatively associated with differentially expressed piRNAs among the five comparison groups with Pearson correlation analysis. In conclusion, these findings paved new avenues for the application of RNAi-based biopesticides for broad-spectrum hemipteran pest control.
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Affiliation(s)
- Yipeng Ren
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, P.R. China
| | - Wenhao Dong
- Tianjin Key Laboratory of Food and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin, P.R. China
| | - Wenjun Bu
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, P.R. China
| | - Huaijun Xue
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, P.R. China
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31
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Xiaowen C, Jiahao L, Zhaorun D, Wenfeng L, Richou H, Yanping C, Huichun X, Yi Z. Honeybee symbiont Bombella apis could restore larval-to-pupal transition disrupted by antibiotic treatment. JOURNAL OF INSECT PHYSIOLOGY 2024; 153:104601. [PMID: 38142957 DOI: 10.1016/j.jinsphys.2023.104601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 12/11/2023] [Accepted: 12/19/2023] [Indexed: 12/26/2023]
Abstract
Numerous studies have demonstrated the vital roles of gut microbes in the health, immunity, nutrient metabolism, and behavior of adult worker honeybees. However, a few studies have been conducted on gut microbiota associated with the larval stage of honeybees. In the present study, we explored the role of a gut bacterium in larval development and larval-pupal transition in the Asian honeybee, Apis cerana. First, our examination of gut microbial profiling showed that Bombella apis, a larvae-associated bacterium, was the most dominant bacterium colonized in the fifth instar larvae. Second, we demonstrated that tetracycline, an antibiotic used to treat a honeybee bacterial brood disease, could cause the complete depletion of gut bacteria. This antibiotic-induced gut microbiome depletion in turn, significantly impacted the survivorship, pupation rate and emergence rate of the treated larvae. Furthermore, our analysis of gene expression pattens revealed noteworthy changes in key genes. The expression of genes responsible for encoding storage proteins vitellogenin (vg) and major royal jelly protein 1 (mrjp1) was significantly down-regulated in the tetracycline-treated larvae. Concurrently, the expression of krüppel homolog 1(kr-h1), a pivotal gene in endocrine signaling, increased, whilethe expression of broad-complex (br-c) gene that plays a key role in the ecdysone regulation decreased. These alterations indicated a disruption in the coordination of juvenile hormone and ecdysteroid synthesis. Finally, we cultivated B. apis isolated from the fifth instar worker larval of A. cerana and fed tetracycline-treated larvae with a diet replenished by B. apis. This intervention resulted in a significant improvement in the pupation rate, emergence rate, and overall survival rate of the treated larvae. Our findings demonstrate the positive impact of B. apis on honeybee larvae development, providing new evidence of the functional capacities of gut microbes in honeybee growth and development.
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Affiliation(s)
- Chen Xiaowen
- Key Laboratory of Tibetan Plateau Medicinal Plant and Animal Resources, Qinghai Normal University, Xi'ning 810008, China; Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Li Jiahao
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Ding Zhaorun
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Li Wenfeng
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Han Richou
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Chen Yanping
- USDA-ARS Bee Research Laboratory, Beltsville, MD 20705, USA
| | - Xie Huichun
- Key Laboratory of Tibetan Plateau Medicinal Plant and Animal Resources, Qinghai Normal University, Xi'ning 810008, China; Qinghai Ecosystem Observation and Research Station in the Southern Qilian Mountains, Haidong 810500, China.
| | - Zhang Yi
- School of Chinese Medicinal Resource, Guangdong Pharmaceutical University, Yunfu 527527, China.
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32
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Motta EVS, Moran NA. The honeybee microbiota and its impact on health and disease. Nat Rev Microbiol 2024; 22:122-137. [PMID: 38049554 PMCID: PMC10998682 DOI: 10.1038/s41579-023-00990-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2023] [Indexed: 12/06/2023]
Abstract
Honeybees (Apis mellifera) are key pollinators that support global agriculture and are long-established models for developmental and behavioural research. Recently, they have emerged as models for studying gut microbial communities. Earlier research established that hindguts of adult worker bees harbour a conserved set of host-restricted bacterial species, each showing extensive strain variation. These bacteria can be cultured axenically and introduced to gnotobiotic hosts, and some have basic genetic tools available. In this Review, we explore the most recent research showing how the microbiota establishes itself in the gut and impacts bee biology and health. Microbiota members occupy specific niches within the gut where they interact with each other and the host. They engage in cross-feeding and antagonistic interactions, which likely contribute to the stability of the community and prevent pathogen invasion. An intact gut microbiota provides protection against diverse pathogens and parasites and contributes to the processing of refractory components of the pollen coat and dietary toxins. Absence or disruption of the microbiota results in altered expression of genes that underlie immunity, metabolism, behaviour and development. In the field, such disruption by agrochemicals may negatively impact bees. These findings demonstrate a key developmental and protective role of the microbiota, with broad implications for bee health.
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Affiliation(s)
- Erick V S Motta
- Department of Integrative Biology, University of Texas, Austin, TX, USA
| | - Nancy A Moran
- Department of Integrative Biology, University of Texas, Austin, TX, USA.
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33
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Nguyen JB, Marshall CW, Cook CN. The buzz within: the role of the gut microbiome in honeybee social behavior. J Exp Biol 2024; 227:jeb246400. [PMID: 38344873 DOI: 10.1242/jeb.246400] [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] [Indexed: 02/15/2024]
Abstract
Gut symbionts influence the physiology and behavior of their host, but the extent to which these effects scale to social behaviors is an emerging area of research. The use of the western honeybee (Apis mellifera) as a model enables researchers to investigate the gut microbiome and behavior at several levels of social organization. Insight into gut microbial effects at the societal level is critical for our understanding of how involved microbial symbionts are in host biology. In this Commentary, we discuss recent findings in honeybee gut microbiome research and synthesize these with knowledge of the physiology and behavior of other model organisms to hypothesize how host-microbe interactions at the individual level could shape societal dynamics and evolution.
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Affiliation(s)
- J B Nguyen
- Department of Biological Sciences, Marquette University, Milwaukee, WI 53233, USA
| | - C W Marshall
- Department of Biological Sciences, Marquette University, Milwaukee, WI 53233, USA
| | - C N Cook
- Department of Biological Sciences, Marquette University, Milwaukee, WI 53233, USA
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34
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Chang R, Yan J, Li Y, Zhang Y, Wu K, Yang Y. Crohn's disease-associated Escherichia coli LF82 in the gut damage of germ-free honeybees: A laboratory study. Microb Pathog 2024; 187:106487. [PMID: 38158143 DOI: 10.1016/j.micpath.2023.106487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 10/30/2023] [Accepted: 11/30/2023] [Indexed: 01/03/2024]
Abstract
Escherichia coli LF82 (LF82) is associated with Crohn's disease. The simplicity and genetic maneuverability of honeybees' gut microbiota make them suitable for studying host-microbe interactions. To understand the interaction between LF82 and host gut, LF82 was used to infect germ-free honeybees (Apis mellifera) orally. We found that LF82 successfully colonized the gut and shortened the lifespan of germ-free bees. LF82 altered the gut structure and significantly increased gut permeability. RT-qPCR showed that LF82 infection activated anti-infective immune pathways and upregulated the mRNAs levels of antimicrobial peptides in the gut of germ-free bees. The gut transcriptome showed that LF82 significantly upregulated genes involved in Notch signaling, adhesion junctions, and Toll and Imd signaling pathways and downregulated genes involved in the peroxisome proliferator-activated receptor (PPAR) signaling pathway, protein digestion and absorption, and tyrosine metabolism. In conclusion, the human-derived enteropathogenic bacterium LF82 can successfully colonize the gut of germ-free honeybees and cause enteritis-like changes, which provides an ideal model organism for revealing the pathogenesis of bacterial-associated diseases.
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Affiliation(s)
- Ruqi Chang
- Medical College of Nankai University, Tianjin, 300071, China
| | - Jingshuang Yan
- Medical College of Nankai University, Tianjin, 300071, China
| | - Yiyuan Li
- Department of Gastroenterology and Hepatology, The First Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Yan Zhang
- Department of Gastroenterology and Hepatology, The First Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | | | - Yunsheng Yang
- Medical College of Nankai University, Tianjin, 300071, China; Department of Gastroenterology and Hepatology, The First Medical Center, Chinese PLA General Hospital, Beijing, 100853, China.
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35
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Quinn A, El Chazli Y, Escrig S, Daraspe J, Neuschwander N, McNally A, Genoud C, Meibom A, Engel P. Host-derived organic acids enable gut colonization of the honey bee symbiont Snodgrassella alvi. Nat Microbiol 2024; 9:477-489. [PMID: 38225461 PMCID: PMC11343714 DOI: 10.1038/s41564-023-01572-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 11/30/2023] [Indexed: 01/17/2024]
Abstract
Diverse bacteria can colonize the animal gut using dietary nutrients or by engaging in microbial crossfeeding interactions. Less is known about the role of host-derived nutrients in enabling gut bacterial colonization. Here we examined metabolic interactions within the evolutionary ancient symbiosis between the honey bee (Apis mellifera) and the core gut microbiota member Snodgrassella alvi. This betaproteobacterium is incapable of metabolizing saccharides, yet colonizes the honey bee gut in the presence of a sugar-only diet. Using comparative metabolomics, 13C-tracers and nanoscale secondary ion mass spectrometry (NanoSIMS), we show in vivo that S. alvi grows on host-derived organic acids, including citrate, glycerate and 3-hydroxy-3-methylglutarate, which are actively secreted by the host into the gut lumen. S. alvi also modulates tryptophan metabolism in the gut by converting kynurenine to anthranilate. These results suggest that S. alvi is adapted to a specific metabolic niche in the honey bee gut that depends on host-derived nutritional resources.
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Affiliation(s)
- Andrew Quinn
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
| | - Yassine El Chazli
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
| | - Stéphane Escrig
- Laboratory for Biological Geochemistry, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Jean Daraspe
- Electron Microscopy Facility, University of Lausanne, Lausanne, Switzerland
| | - Nicolas Neuschwander
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
| | - Aoife McNally
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
| | - Christel Genoud
- Electron Microscopy Facility, University of Lausanne, Lausanne, Switzerland
| | - Anders Meibom
- Laboratory for Biological Geochemistry, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
- Center for Advanced Surface Analysis, Institute of Earth Sciences, University of Lausanne, Lausanne, Switzerland
| | - Philipp Engel
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland.
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36
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Gonçalves CL, Doifode T, Rezende VL, Costa MA, Rhoads JM, Soutullo CA. The many faces of microbiota-gut-brain axis in autism spectrum disorder. Life Sci 2024; 337:122357. [PMID: 38123016 DOI: 10.1016/j.lfs.2023.122357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 12/02/2023] [Accepted: 12/13/2023] [Indexed: 12/23/2023]
Abstract
The gut-brain axis is gaining more attention in neurodevelopmental disorders, especially autism spectrum disorder (ASD). Many factors can influence microbiota in early life, including host genetics and perinatal events (infections, mode of birth/delivery, medications, nutritional supply, and environmental stressors). The gut microbiome can influence blood-brain barrier (BBB) permeability, drug bioavailability, and social behaviors. Developing microbiota-based interventions such as probiotics, gastrointestinal (GI) microbiota transplantation, or metabolite supplementation may offer an exciting approach to treating ASD. This review highlights that RNA sequencing, metabolomics, and transcriptomics data are needed to understand how microbial modulators can influence ASD pathophysiology. Due to the substantial clinical heterogeneity of ASD, medical caretakers may be unlikely to develop a broad and effective general gut microbiota modulator. However, dietary modulation followed by administration of microbiota modulators is a promising option for treating ASD-related behavioral and gastrointestinal symptoms. Future work should focus on the accuracy of biomarker tests and developing specific psychobiotic agents tailored towards the gut microbiota seen in ASD patients, which may include developing individualized treatment options.
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Affiliation(s)
- Cinara L Gonçalves
- Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil.
| | - Tejaswini Doifode
- Louis A. Faillace, MD, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health (UTHealth), Houston, TX, USA
| | - Victoria L Rezende
- Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Maiara A Costa
- Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - J Marc Rhoads
- Department of Pediatrics, Division of Pediatric Gastroenterology, McGovern Medical School, The University of Texas Health (UTHealth), Houston, TX, USA
| | - Cesar A Soutullo
- Louis A. Faillace, MD, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health (UTHealth), Houston, TX, USA
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37
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Davidson GL, Cienfuegos IA, Dalesman S. Antibiotic-altered gut microbiota explain host memory plasticity and disrupt pace-of-life covariation for an aquatic snail. THE ISME JOURNAL 2024; 18:wrae078. [PMID: 38811063 PMCID: PMC11136587 DOI: 10.1093/ismejo/wrae078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/21/2024] [Accepted: 04/29/2024] [Indexed: 05/31/2024]
Abstract
There is mounting evidence that intestinal microbiota communities and their genes (the gut microbiome) influence how animals behave and interact with their environment, driving individual variation. Individual covariation in behavioural, physiological, and cognitive traits among individuals along a fast-slow continuum is thought to arise because these traits are linked as part of an adaptive pace-of-life strategy. Yet paradoxically, trait intercorrelation is absent or disrupted in some populations but not others. Here, we provide experimental evidence from aquatic pond snails (Lymnaea stagnalis) that environmental stressors and the gut microbiota explain host phenotypic plasticity and disrupted covariation among traits. Antibiotic exposure at varying levels of ecologically relevant concentrations had multiple effects starting with gut microbiota diversity, differential abundance, and inferred function. Memory declined in line with antibiotic concentrations that caused the most profound gut microbiota disruption, and although pace-of-life traits remained rigid, their covariation did not. Moreover, inferred microbial metabolic pathways with biologically relevant host functions explained individual and treatment variation in phenotypes. Together, our results point to the gut microbiome as a proximate mechanism influencing the emergence and maintenance of phenotypic variation within populations and highlights the need to decipher whether the gut microbiome's sensitivity to environmental pollution facilitates adaptive or maladaptive phenotypic plasticity.
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Affiliation(s)
- Gabrielle L Davidson
- School of Biological Sciences, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
- Department of Psychology, University of Cambridge, Cambridge, CB2 3EB, United Kingdom
- School of Biological, Earth and Environmental Sciences, University College Cork, Cork, Ireland
| | - Ignacio A Cienfuegos
- Department of Life Sciences, Aberystwyth University, Aberystwyth, SY23 3DA, United Kingdom
| | - Sarah Dalesman
- Department of Life Sciences, Aberystwyth University, Aberystwyth, SY23 3DA, United Kingdom
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38
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Suenami S, Sato M, Miyazaki R. Gustatory Responsiveness of Honey Bees Colonized with a Defined or Conventional Gut Microbiota. Microbes Environ 2024; 39:ME23081. [PMID: 38447985 PMCID: PMC10982108 DOI: 10.1264/jsme2.me23081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 01/19/2024] [Indexed: 03/08/2024] Open
Abstract
Gut microbes have many beneficial functions for host animals, such as food digestion and development of the immune system. An increasing number of studies report that gut bacteria also affect host neural function and behavior. The sucrose responsiveness of the western honey bee Apis mellifera, which harbors a characteristic gut microbiota, was recently reported to be increased by the presence of gut microbes. However, this responsiveness may vary depending on the experimental design, as animal behavior may be modulated by physiological states and environmental conditions. To evaluate the robustness of the effects of the gut microbiota on host gustatory responsiveness, we herein examined the sucrose responsiveness of honey bees colonized with a defined bacterial community or a conventional gut microbiota extracted from a field-collected bee. Although colonization was experimentally verified, sucrose responsiveness did not significantly differ among treatments after the 2- or 5-h starvation period. We concluded that the sucrose responsiveness of A. mellifera is not always affected by its gut microbiota. Therefore, host physiological conditions and environmental factors need to be considered when evaluating the impact of the gut microbiota on host neural function and behavior.
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Affiliation(s)
- Shota Suenami
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305–8566, Japan
| | - Masato Sato
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305–8566, Japan
| | - Ryo Miyazaki
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305–8566, Japan
- Computational Bio Big Data Open Innovation Laboratory (CBBD-OIL), AIST, Tokyo 169–8555, Japan
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba 305–8572, Japan
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Peng S, Ye L, Li Y, Wang F, Sun T, Wang L, Hao W, Zhao J, Dong Z. Microbiota regulates life-cycle transition and nematocyte dynamics in jellyfish. iScience 2023; 26:108444. [PMID: 38125018 PMCID: PMC10730743 DOI: 10.1016/j.isci.2023.108444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 10/25/2023] [Accepted: 11/09/2023] [Indexed: 12/23/2023] Open
Abstract
Jellyfish represent one of the most basal animal groups with complex life cycles. The polyp-to-medusa transition, termed strobilation, is the pivotal process that determines the switch in swimming behavior and jellyfish blooms. Their microbiota plays an essential role in strobilation. Here, we investigated microbiota-mediated host phenotype dynamics during strobilation in the jellyfish Aurelia coerulea via antibiotic-induced microbiome alteration. Microbial depletion delayed the initiation of strobilation and resulted in fewer segments and ephyrae, which could be restored via microbial recolonization. Jellyfish-associated cyanobacteria, which were eliminated by antibiotics in the polyp stage, had the potential to supply retinal and trigger the retinoic acid signaling cascade, which drove the strobilation process. The microbiota regulated nematocyte development and differentiation, influencing the feeding and growth of the jellyfish. The findings improve our understanding of jellyfish-microbe interactions and provide new insights into the role of the microbiota in shaping feeding behavior through nematocyte dynamics.
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Affiliation(s)
- Saijun Peng
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lijing Ye
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China
| | - Yongxue Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fanghan Wang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tingting Sun
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China
| | - Lei Wang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China
| | - Wenjin Hao
- School of Life Science, Nantong University, Nantong, Jiangsu 226019, China
| | - Jianmin Zhao
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhijun Dong
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Junrui-Fu, Rong Z, Huang X, Wang J, Long X, Feng Q, Deng H. Gut dysbacteriosis induces expression differences in the adult head transcriptome of Spodoptera frugiperda in a sex-specific manner. BMC Microbiol 2023; 23:388. [PMID: 38057708 PMCID: PMC10702092 DOI: 10.1186/s12866-023-03089-0] [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: 08/15/2023] [Accepted: 10/25/2023] [Indexed: 12/08/2023] Open
Abstract
Mounting evidence indicates that the gut microbiota influences the neurodevelopment and behavior of insects through the gut-brain axis. However, it is currently unclear whether the gut microbiota affect the head profiles and immune pathway in pests. Here, we find that gut bacteria is essential for the immune and neural development of adult Spodoptera frugiperda, which is an extremely destructive agricultural pest worldwide. 16 S rRNA sequencing analysis showed that antibiotics exposure significantly disturbed the composition and diversity of gut bacteria. Further transcriptomic analysis revealed that the adult head transcripts were greatly affected by gut dysbacteriosis, and differently expression genes critical for brain and neural development including A4galt, Tret1, nsun4, Galt, Mitofilin, SLC2A3, snk, GABRB3, Oamb and SLC6A1 were substantially repressed. Interestingly, the dysbacteriosis caused sex-specific differences in immune response. The mRNA levels of pll (serine/threonine protein kinase Pelle), PGRP (peptidoglycan-sensing receptor), CECA (cecropin A) and CECB (cecropin B) involved in Toll and Imd signaling pathway were drastically decreased in treated male adults' heads but not in female adults; however, genes of HIVEP2, ZNF131, inducible zinc finger protein 1-like and zinc finger protein 99-like encoding zinc-finger antiviral protein (ZAP) involved in the interferon (IFNα/β) pathway were significantly inhibited in treated female adults' heads. Collectively, these results demonstrate that gut microbiota may regulate head transcription and impact the S. frugiperda adults' heads through the immune pathway in a sex-specific manner. Our finding highlights the relationship between the gut microbiota and head immune systems of S. frugiperda adults, which is an astonishing similarity with the discoveries of other animals. Therefore, this is the basis for further research to understand the interactions between hosts and microorganisms via the gut-brain axis in S. frugiperda and other insects.
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Affiliation(s)
- Junrui-Fu
- Guangdong Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Zixia Rong
- Guangdong Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Ximei Huang
- Guangdong Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Junhan Wang
- Guangdong Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Xiaoyan Long
- Guangdong Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Qili Feng
- Guangdong Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Huimin Deng
- Guangdong Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology & School of Life Sciences, South China Normal University, Guangzhou, 510631, China.
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510631, China.
- Guangmeiyuan R&D Center, Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, South China Normal University, Meizhou, 514779, China.
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Ren Y, Chen J, Fu S, Bu W, Xue H. Changes in the gut bacterial community affect miRNA profiles in Riptortus pedestris under different rearing conditions. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. PART D, GENOMICS & PROTEOMICS 2023; 48:101135. [PMID: 37688974 DOI: 10.1016/j.cbd.2023.101135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/04/2023] [Accepted: 08/31/2023] [Indexed: 09/11/2023]
Abstract
Insects possess complex and dynamic gut microbial system, which contributes to host nutrient absorption, reproduction, energy metabolism, and protection against stress. However, there are limited data on interactions of host-gut bacterial microbiota through miRNA (microRNA) regulation in a significant pest, Riptortus pedestris. Here, we performed the 16S rRNA amplicon sequencing and small RNA sequencing from the R. pedestris gut under three environmental conditions and antibiotic treatment, suggesting that we obtained a large amount of reads by assembly, filtration and quality control. The 16S rRNA amplicon sequencing results showed that the abundance and diversity of gut bacterial microbiota were significantly changed between antibiotic treatment and other groups, and they are involved in metabolism and biosynthesis-related function based on functional prediction. Furthermore, we identified different numbers of differentially expressed unigenes (DEGs) and differentially expressed miRNAs (DEMs) based on high-quality mappable reads, which were enriched in various immune-related pathways, including Toll-like receptor, RIG-I-like receptor, NOD-like receptor, JAK/STAT, PI3K/Akt, NF-κB, MAPK signaling pathways, and so forth, using GO and KEGG enrichment analysis. Later on, the identified miRNAs and their target genes in the R. pedestris gut were predicted and randomly selected to construct an interaction network. Finally, our study indicated that alterations in the gut bacterial microbiota are significantly positively or negatively associated with DEMs of the Toll/Imd signaling pathway with Pearson correlation analysis. Taken together, the results of our study lay the foundation for further deeply understanding the interactions between the gut microbiota and immune responses in R. pedestris through miRNA regulation, and provide the new basis for pest management in hemipteran pests.
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Affiliation(s)
- Yipeng Ren
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin 300071, PR China.
| | - Juhong Chen
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin 300071, PR China.
| | - Siying Fu
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin 300071, PR China.
| | - Wenjun Bu
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin 300071, PR China.
| | - Huaijun Xue
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin 300071, PR China.
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Deng Y, Yang X, Chen J, Yang S, Chi H, Chen C, Yang X, Hou C. Jute ( Corchorus olitorius L.) Nanocrystalline Cellulose Inhibits Insect Virus via Gut Microbiota and Metabolism. ACS NANO 2023; 17:21662-21677. [PMID: 37906569 DOI: 10.1021/acsnano.3c06824] [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: 11/02/2023]
Abstract
Natural plant nanocrystalline cellulose (NCC), exhibiting a number of exceptional performance characteristics, is widely used in food fields. However, little is known about the relationship between NCC and the antiviral effect in animals. Here, we tested the function of NCC in antiviral methods utilizing honey bees as the model organism employing Israeli acute paralysis virus (IAPV), a typical RNA virus of honey bees. In both the lab and the field, we fed the IAPV-infected bees various doses of jute NCC (JNCC) under carefully controlled conditions. We found that JNCC can reduce IAPV proliferation and improve gut health. The metagenome profiling suggested that IAPV infection significantly decreased the abundance of gut core bacteria, while JNCC therapy considerably increased the abundance of the gut core bacteria Snodgrassella alvi and Lactobacillus Firm-4. Subsequent metabolome analysis further revealed that JNCC promoted the biosynthesis of fatty acids and unsaturated fatty acids, accelerated the purine metabolism, and then increased the expression of antimicrobial peptides (AMPs) and the genes involved in the Wnt and apoptosis signaling pathways against IAPV infection. Our results highlighted that JNCC could be considered as a prospective candidate agent against a viral infection.
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Affiliation(s)
- Yanchun Deng
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, P. R. China
| | - Xiai Yang
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, P. R. China
| | - Jiquan Chen
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, P. R. China
| | - Sa Yang
- Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, P. R. China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
| | - Haiyang Chi
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, P. R. China
| | - Chenxiao Chen
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, P. R. China
| | - Xiushi Yang
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, P. R. China
| | - Chunsheng Hou
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, P. R. China
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Ren Y, Wang Y, Chen J, Fu S, Bu W, Xue H. Integrated analysis of miRNA profiles and gut bacterial changes in Altica viridicyanea following antibiotic treatment. Ecol Evol 2023; 13:e10660. [PMID: 37915809 PMCID: PMC10616750 DOI: 10.1002/ece3.10660] [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: 05/11/2023] [Revised: 09/29/2023] [Accepted: 10/12/2023] [Indexed: 11/03/2023] Open
Abstract
The gut bacteria involves in insect homeostasis by playing essential roles in host physiology, metabolism, innate immunity, and so forth. microRNAs (miRNAs) are endogenous small noncoding RNAs that posttranscriptionally regulate gene expression to affect immune or metabolic processes in insects. For several non-model insects, the available knowledge on the relationship between changes in the gut bacteria and miRNA profiles is limited. In this study, we investigated the gut bacterial diversity, composition, and function from Altica viridicyanea feeding on normal- and antibiotic-treated host plants using 16S rRNA amplicon sequencing; antibiotics have been shown to affect the body weight and development time in A. viridicyanea, suggesting that the gut bacteria of the normal sample were more diverse and abundant than those of the antibiotic-fed group, and most of them were involved in various physical functions by enrichment analysis. Furthermore, we executed small RNA transcriptome sequencing using the two experimental groups to obtain numerous sRNAs, such as piRNAs, siRNAs, and known and novel miRNAs, by data mapping and quality control, and furthermore, a total of 224 miRNAs were identified as significantly differentially expressed miRNAs, of which some DEMs and their target genes participated in immune- and metabolism-related pathways based on GO and KEGG annotation. Besides, regarding the regulatory roles of miRNA and target genes, a interaction network of DEM-target gene pairs from eight immune- or metabolism-related signaling pathways were constructed. Finally, we discovered that DEMs from above pathways were significantly positively or negatively correlated with gut bacterial alterations following antibiotic treatment. Collectively, the observations of this study expand our understanding of how the disturbance of gut bacteria affects miRNA profiles in A. viridicyanea and provide new valuable resources from extreme ranges for future studies on the adaptive evolution in insects.
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Affiliation(s)
- Yipeng Ren
- Institute of Entomology, College of Life SciencesNankai UniversityTianjinChina
| | - Yuan Wang
- Institute of Entomology, College of Life SciencesNankai UniversityTianjinChina
| | - Juhong Chen
- Institute of Entomology, College of Life SciencesNankai UniversityTianjinChina
| | - Siying Fu
- Institute of Entomology, College of Life SciencesNankai UniversityTianjinChina
| | - Wenjun Bu
- Institute of Entomology, College of Life SciencesNankai UniversityTianjinChina
| | - Huaijun Xue
- Institute of Entomology, College of Life SciencesNankai UniversityTianjinChina
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Chen Y, Pan R, Mei L, Tian P, Wang L, Zhao J, Chen W, Wang G. Colon-Targeted Delivery of Indole Acetic Acid Helps Regulate Gut Motility by Activating the AHR Signaling Pathway. Nutrients 2023; 15:4282. [PMID: 37836566 PMCID: PMC10574622 DOI: 10.3390/nu15194282] [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: 09/15/2023] [Revised: 10/01/2023] [Accepted: 10/06/2023] [Indexed: 10/15/2023] Open
Abstract
Intestinal peristalsis is vital for gastrointestinal physiology and host homeostasis and is frequently dysregulated in intestinal disorders. Gut microbiota can regulate gut motility, especially through the tryptophan metabolism pathway. However, the role of indoles as microbial tryptophan metabolites in colonic function requires further exploration. Here, we show that the delivery of indole acetic acid (IAA) targeting the colon can improve gut motility by activating the aryl hydrocarbon receptor (AHR). To achieve colon-targeted delivery, Eudragit S-100 (ES) and chitosan (CS) were used as drug carriers. After optimisation, IAA-loaded ES-coated CS nanoparticles exhibited an encapsulation efficiency of 83% and a drug-loading capacity of 16%. These nanoparticles exhibited pH-dependent characteristics and remained stable in acidic conditions and the upper intestine. In simulated intestinal fluid (pH 7.4) and colonic lumen, considerable amounts of IAA were released after approximately 4 h. Compared with free IAA, the nanoparticles exerted enhanced therapeutic effects on gut movement disorders induced by loperamide. The efficacy of IAA treatment was attributable to the activation of the AHR signalling pathway and increased levels of AHR agonists. Furthermore, the oral administration of IAA-loaded nanoparticles promoted serotonin secretion and maintained the intestinal barrier function. The experimental outcomes demonstrate the efficiency of the proposed colon-specific delivery system and highlight the role of IAA, produced by gut microbiota metabolism, in regulating gut peristalsis through AHR activation.
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Affiliation(s)
- Ying Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (Y.C.); (R.P.); (L.M.); (P.T.); (L.W.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Ruili Pan
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (Y.C.); (R.P.); (L.M.); (P.T.); (L.W.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Liya Mei
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (Y.C.); (R.P.); (L.M.); (P.T.); (L.W.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Peijun Tian
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (Y.C.); (R.P.); (L.M.); (P.T.); (L.W.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Linlin Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (Y.C.); (R.P.); (L.M.); (P.T.); (L.W.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (Y.C.); (R.P.); (L.M.); (P.T.); (L.W.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
- (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou 225004, China
| | - Wei Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (Y.C.); (R.P.); (L.M.); (P.T.); (L.W.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Gang Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (Y.C.); (R.P.); (L.M.); (P.T.); (L.W.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
- (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou 225004, China
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Nguyen PN, Rehan SM. Environmental Effects on Bee Microbiota. MICROBIAL ECOLOGY 2023; 86:1487-1498. [PMID: 37099156 DOI: 10.1007/s00248-023-02226-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 04/19/2023] [Indexed: 06/19/2023]
Abstract
Anthropogenic activities and increased land use, which include industrialization, agriculture and urbanization, directly affect pollinators by changing habitats and floral availability, and indirectly by influencing their microbial composition and diversity. Bees form vital symbioses with their microbiota, relying on microorganisms to perform physiological functions and aid in immunity. As altered environments and climate threaten bees and their microbiota, characterizing the microbiome and its complex relationships with its host offers insights into understanding bee health. This review summarizes the role of sociality in microbiota establishment, as well as examines if such factors result in increased susceptibility to altered microbiota due to environmental changes. We characterize the role of geographic distribution, temperature, precipitation, floral resources, agriculture, and urbanization on bee microbiota. Bee microbiota are affected by altered surroundings regardless of sociality. Solitary bees that predominantly acquire their microbiota through the environment are particularly sensitive to such effects. However, the microbiota of obligately eusocial bees are also impacted by environmental changes despite typically well conserved and socially inherited microbiota. We provide an overview of the role of microbiota in plant-pollinator relationships and how bee microbiota play a larger role in urban ecology, offering microbial connections between animals, humans, and the environment. Understanding bee microbiota presents opportunities for sustainable land use restoration and aiding in wildlife conservation.
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Affiliation(s)
| | - Sandra M Rehan
- Department of Biology, York University, Toronto, Canada.
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Lazarova S, Lozanova L, Neov B, Shumkova R, Balkanska R, Palova N, Salkova D, Radoslavov G, Hristov P. Composition and diversity of bacterial communities associated with honey bee foragers from two contrasting environments. BULLETIN OF ENTOMOLOGICAL RESEARCH 2023; 113:693-702. [PMID: 37545319 DOI: 10.1017/s0007485323000378] [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: 08/08/2023]
Abstract
The honey bee is associated with a diverse community of microbes (viruses, bacteria, fungi, and protists), commonly known as the microbiome. Here, we present data on honey bee microbiota from two localities having different surrounding landscapes - mountain (the Rhodope Mountains) and lowland (the Danube plain). The bacterial communities of abdomen of adult bees were studied using amplicon sequencing of the 16S rRNA gene. The composition and dominance structure and their variability within and between localities, alpha and beta diversity, and core and differential taxa were compared at different hierarchical levels (operational taxonomic units to phylum). Seven genera (Lactobacillus, Gilliamella, Bifidobacterium, Commensalibacter, Bartonella, Snodgrassella, and Frischella), known to include core gut-associated phylotypes or species clusters, dominated (92-100%) the bacterial assemblages. Significant variations were found in taxa distribution across both geographical regions and within each apiary. Lactobacillus (Firmicutes) prevailed significantly in the mountain locality followed by Gilliamella and Bartonella (Proteobacteria). Bacteria of four genera, core (Bartonella and Lactobacillus) and non-core (Pseudomonas and Morganella), dominated the bee-associated assemblages of the Danube plain locality. Several ubiquitous bacterial genera (e.g., Klebsiella, Serratia, and Providencia), some species known also as potential and opportunistic bee pathogens, had been found in the lowland locality. Beta diversity analyses confirmed the observed differences in the bacterial communities from both localities. The occurrence of non-core taxa contributes substantially to higher microbial richness and diversity in bees from the Danube plain locality. We assume that the observed differences in the microbiota of honey bees from both apiaries are due to a combination of factors specific for each region. The surrounding landscape features of both localities and related vegetation, anthropogenic impact and land use intensity, the beekeeping management practices, and bee health status might all contribute to observed differences in bee microbiota traits.
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Affiliation(s)
- Stela Lazarova
- Department of Animal Diversity and Resources, Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Lyudmila Lozanova
- Department of Ecosystem Research, Environmental Risk Assessment and Conservation Biology, Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Boyko Neov
- Department of Animal Diversity and Resources, Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Rositsa Shumkova
- Research Centre of Stockbreeding and Agriculture, Agricultural Academy, 4700 Smolyan, Bulgaria
| | - Ralitsa Balkanska
- Department 'Special Branches', Institute of Animal Science, Agricultural Academy, 2230 Kostinbrod, Bulgaria
| | - Nadezhda Palova
- Scientific Center of Agriculture, Agricultural Academy, Sredets 8300, Bulgaria
| | - Delka Salkova
- Department of Experimental Parasitology, Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Georgi Radoslavov
- Department of Animal Diversity and Resources, Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Peter Hristov
- Department of Animal Diversity and Resources, Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Mills TJT, Nelson TM, Pearson LA, Neilan BA. Hive Transplantation Has Minimal Impact on the Core Gut Microbiome of the Australian Stingless Bee, Tetragonula carbonaria. MICROBIAL ECOLOGY 2023; 86:2086-2096. [PMID: 37088849 PMCID: PMC10497653 DOI: 10.1007/s00248-023-02222-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 04/11/2023] [Indexed: 05/03/2023]
Abstract
Bacteria residing in the guts of pollinating insects play a key role in nutrient acquisition, digestion, and resistance to pests and diseases. Imbalances in microbial flora in response to environmental change and stress can therefore impact insect health and resilience. This study is aimed at defining the core gut microbiome of the Australian native stingless bee, Tetragonula carbonaria, and exploring the impact of colony transplantation on gut health. The gut microbiomes of nine forager bees from natural (log) and manufactured (box) hives were examined via 16S rRNA gene amplicon sequencing. Some differences were observed at the ASV level between the microbiomes of log and box hive bees. However, a core microbiome, dominated by Lactobacillus spp., unclassified Acetobacteraceae spp., and Bombella spp., was maintained. Further, the inferred functional potential of the microbiomes was consistent across all individuals. This study highlights that although hive transplantation has an impact on the overall diversity of stingless bee gut microbiomes, it is unlikely to have a significant negative impact on the overall health and resilience of the colony.
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Affiliation(s)
- T J T Mills
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, New South Wales, Australia
| | - T M Nelson
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, New South Wales, Australia
| | - L A Pearson
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, New South Wales, Australia
| | - B A Neilan
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, New South Wales, Australia.
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Dai C, Chen X, Qian S, Fan Y, Li L, Yuan J. Dysbiosis of intestinal homeostasis contribute to Whitmania pigra edema disease. Microb Biotechnol 2023; 16:1940-1956. [PMID: 37410351 PMCID: PMC10527190 DOI: 10.1111/1751-7915.14308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 06/20/2023] [Accepted: 06/22/2023] [Indexed: 07/07/2023] Open
Abstract
Whitmania pigra is widely used in traditional Chinese medicine. However, W. pigra is being threatened by an edema disease with unknown causes (WPE). In this study, a comprehensive exploration of virome, microbiome, and metabolome aberrations in the intestine of W. pigra was performed to address the aetiology of WPE. Virome analysis indicated that eukaryotic viruses did not contribute to WPE, whereas an expansion of Caudovirales was observed in WPE. Compared to the control, the microbial richness and diversity in diseased W. pigra decreased remarkably. Nine genera, including Aeromonas, Anaerotruncus, Vibrio, Proteocatella, Acinetobacter, and Brachyspira were overrepresented in WPE, whereas eleven genera, including Bifidobacterium, Phascolarctobacterium, Lactobacillus, Bacillus and AF12, were enriched in healthy individuals. Furthermore, certain metabolites, especially amino acids, short-chain fatty acids, and bile acids, were found to be linked to intestinal microbiota alterations in WPE. An integration of the microbiome and metabolome in WPE found that dysbiosis of the gut microbiota or metabolites caused WPE. Notably, W. pigra accepted intestinal microbiota transplantation from WPE donors developed WPE clinical signs eventually, and the dysbiotic intestinal microbiota can be recharacterized in this recipient W. pigra. Strikingly, pathological features of metanephridium and uraemic toxin enrichment in the gut indicated a putative interconnection between the gut and metanephridium in WPE, which represents the prototype of the gut-kidney axis in mammals. These finding exemplify the conservation of "microecological Koch's postulates" from annelids to insects and other vertebrates, which provides a direction of prevention and treatment for WPE and opens a new insight into the pathogenesis of aquatic animal diseases from an ecological perspective.
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Affiliation(s)
- Caijiao Dai
- Department of Aquatic Animal Medicine, College of FisheriesHuazhong Agricultural UniversityWuhanChina
- National Aquatic Animal Diseases Para‐reference laboratory (HZAU)WuhanChina
| | - Xin Chen
- Department of Aquatic Animal Medicine, College of FisheriesHuazhong Agricultural UniversityWuhanChina
- National Aquatic Animal Diseases Para‐reference laboratory (HZAU)WuhanChina
| | - Shiyu Qian
- Department of Aquatic Animal Medicine, College of FisheriesHuazhong Agricultural UniversityWuhanChina
- Hubei Engineering Research Centre for Aquatic Animal Diseases Control and PreventionWuhanChina
| | - Yihui Fan
- Department of Aquatic Animal Medicine, College of FisheriesHuazhong Agricultural UniversityWuhanChina
- Hubei Engineering Research Centre for Aquatic Animal Diseases Control and PreventionWuhanChina
| | - Lijuan Li
- Department of Aquatic Animal Medicine, College of FisheriesHuazhong Agricultural UniversityWuhanChina
- National Aquatic Animal Diseases Para‐reference laboratory (HZAU)WuhanChina
- Hubei Engineering Research Centre for Aquatic Animal Diseases Control and PreventionWuhanChina
| | - Junfa Yuan
- Department of Aquatic Animal Medicine, College of FisheriesHuazhong Agricultural UniversityWuhanChina
- National Aquatic Animal Diseases Para‐reference laboratory (HZAU)WuhanChina
- Hubei Engineering Research Centre for Aquatic Animal Diseases Control and PreventionWuhanChina
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49
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Cabirol A, Moriano-Gutierrez S, Engel P. Neuroactive metabolites modulated by the gut microbiota in honey bees. Mol Microbiol 2023. [PMID: 37718573 DOI: 10.1111/mmi.15167] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 09/04/2023] [Accepted: 09/05/2023] [Indexed: 09/19/2023]
Abstract
Honey bees have emerged as a new model to study the gut-brain axis, as they exhibit complex social behaviors and cognitive abilities, while experiments with gnotobiotic bees have revealed that their gut microbiota alters both brain and behavioral phenotypes. Furthermore, while honey bee brain functions supporting a broad range of behaviors have been intensively studied for over 50 years, the gut microbiota of bees has been experimentally characterized only recently. Here, we combined six published datasets from metabolomic analyses to provide an overview of the neuroactive metabolites whose abundance in the gut, hemolymph and brain varies in presence of the gut microbiota. Such metabolites may either be produced by gut bacteria, released from the pollen grains during their decomposition by bacteria, or produced by other organs in response to different bacterial products. We describe the current state of knowledge regarding the impact of such metabolites on brain function and behavior and provide further hypotheses to explore in this emerging field of research.
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Affiliation(s)
- Amélie Cabirol
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
| | | | - Philipp Engel
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
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50
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Guo L, Li Z, Xu J. Effects of Cadmium Stress on Bacterial and Fungal Communities in the Whitefly Bemisia tabaci. Int J Mol Sci 2023; 24:13588. [PMID: 37686394 PMCID: PMC10488276 DOI: 10.3390/ijms241713588] [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: 07/19/2023] [Revised: 08/23/2023] [Accepted: 08/31/2023] [Indexed: 09/10/2023] Open
Abstract
Heavy metal contamination is among the most prominent environmental problems in China, posing serious threats to both ecosystem and human health. Among the diverse heavy metal contaminants, cadmium is the most serious. The whitefly Bemisia tabaci is a cosmopolitan pest capable of causing severe damage to a broad range of agricultural crops, especially vegetables. At present, little is known about the effects of cadmium stress on B. tabaci, including on its bacterial and fungal communities. In the current study, we investigated the effects of cadmium on bacterial and fungal communities in whiteflies. Meta-barcode sequencing of the 16S rRNA gene revealed that the whitefly bacterial community contained 264 operational taxonomic units (OTUs) belonging to 201 known genera and 245 known species. The top five most frequent bacterial genera were Rickettsia, Rhodococcus, Candidatus Portiera, Candidatus Hamiltonella, and Achromobacter. Meta-barcode sequencing of the fungal ITS locus revealed that the whitefly fungal community contained 357 OTUs belonging to 187 known genera and 248 known species. The top five most frequent fungal genera were Wallemia, unclassified_f_Dipodascaceae, Apiotrichum, Penicillium, and unclassified_o_Saccharomycetales. Cadmium exposure reduced the fungal OTU richness but increased the bacterial Shannon and Simpson diversity indices in whiteflies. In addition, upon exposure to cadmium, the microbial community composition in whiteflies changed significantly, with increased prevalence of the bacterial genera Rhodococcus and Exiguobacterium and fungal genus Wallemia. Our results indicate that the whitefly microbiota likely contributed to their adaptation and resistance to cadmium and suggested that whiteflies may contain microbes that could help remediate cadmium contamination in natural environments and agricultural fields.
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Affiliation(s)
- Litao Guo
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China; (L.G.); (Z.L.)
| | - Zhimin Li
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China; (L.G.); (Z.L.)
| | - Jianping Xu
- Department of Biology, McMaster University, Hamilton, ON L8S 4K1, Canada
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