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Li JL, Li WL, Zhang J, Pang YT, Xiong J, Wu P, Wei BR, Li XJ, Huang Q, Tang QH, Zhao CH, Wang Q, Liu ZL, Chen Y, Dong ZX, Zhao YZ, Guo J. Seasonal dynamics of the microbiota and nutritional composition in bee bread from Apis cerana and Apis mellifera colonies. Food Res Int 2024; 190:113905. [PMID: 38945555 DOI: 10.1016/j.foodres.2023.113905] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 07/02/2024]
Abstract
Bee bread is a product of honeybees, which collect and ferment pollen, that contains highly nutritious and easily digestible active substances. However, its nutritional composition varies significantly with fermentation strains and seasonal changes. To unveil the patterns of microbial community and nutritional component changes in bee bread across seasons, we employed high-throughput techniques to assess the diversity of bacteria and fungi in bee bread. The results indicated that the compositions of bacteria and fungi in bee bread undergo significant seasonal variation, with noticeable changes in the microbial diversity of bee bread from different bee species. Subsequently, metabolomic analysis revealed high activity of glycerophospholipid metabolism in bee bread. Furthermore, our analysis identifaied noteworthy differences in nutritional components, including pH values, sugar content, and free amino acid levels, in bee bread across different seasons.
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Affiliation(s)
- Jia-Li Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan 650500, China; Yunnan Zhongfeng Technology Development Co. LTD, Kunming, Yunnan 651701, China
| | - Wan-Li Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Jun Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Yan-Tao Pang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Jian Xiong
- Yunnan Zhongfeng Technology Development Co. LTD, Kunming, Yunnan 651701, China
| | - Ping Wu
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China
| | - Bang-Rong Wei
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China
| | - Xi-Jie Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Qi Huang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Qi-He Tang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Chong-Hui Zhao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Qian Wang
- General Station of Bee Technology Promotion in Gansu Province/Gansu Provincial Bee Research Institute, China
| | - Zhan-Li Liu
- General Station of Bee Technology Promotion in Gansu Province/Gansu Provincial Bee Research Institute, China
| | - Yuan Chen
- Pujia Life Technology Development Co. LTD, Fuzhou 350018, China
| | - Zhi-Xiang Dong
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan 650500, China.
| | - Ya-Zhou Zhao
- Nanchuan District Livestock, Veterinary and Fisheries Center, Chongqing 408400, China; State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China.
| | - Jun Guo
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan 650500, China; Yunnan Zhongfeng Technology Development Co. LTD, Kunming, Yunnan 651701, China.
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Maccaro JJ, Figueroa LL, McFrederick QS. From pollen to putrid: Comparative metagenomics reveals how microbiomes support dietary specialization in vulture bees. Mol Ecol 2024; 33:e17421. [PMID: 38828760 DOI: 10.1111/mec.17421] [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: 01/21/2024] [Revised: 05/12/2024] [Accepted: 05/20/2024] [Indexed: 06/05/2024]
Abstract
For most animals, the microbiome is key for nutrition and pathogen defence, and is often shaped by diet. Corbiculate bees, including honey bees, bumble bees, and stingless bees, share a core microbiome that has been shaped, at least in part, by the challenges associated with pollen digestion. However, three species of stingless bees deviate from the general rule of bees obtaining their protein exclusively from pollen (obligate pollinivores) and instead consume carrion as their sole protein source (obligate necrophages) or consume both pollen and carrion (facultative necrophages). These three life histories can provide missing insights into microbiome evolution associated with extreme dietary transitions. Here, we investigate, via shotgun metagenomics, the functionality of the microbiome across three bee diet types: obligate pollinivory, obligate necrophagy, and facultative necrophagy. We find distinct differences in microbiome composition and gene functional profiles between the diet types. Obligate necrophages and pollinivores have more specialized microbes, whereas facultative necrophages have a diversity of environmental microbes associated with several dietary niches. Our study suggests that necrophagous bee microbiomes may have evolved to overcome cellular stress and microbial competition associated with carrion. We hypothesize that the microbiome evolved social phenotypes, such as biofilms, that protect the bees from opportunistic pathogens present on carcasses, allowing them to overcome novel nutritional challenges. Whether specific microbes enabled diet shifts or diet shifts occurred first and microbial evolution followed requires further research to disentangle. Nonetheless, we find that necrophagous microbiomes, vertebrate and invertebrate alike, have functional commonalities regardless of their taxonomy.
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Affiliation(s)
- Jessica J Maccaro
- Department of Entomology, University of California Riverside, Riverside, California, USA
| | - Laura L Figueroa
- Department of Environmental Conservation, University of Massachusetts Amherst, Amherst, Massachusetts, USA
| | - Quinn S McFrederick
- Department of Entomology, University of California Riverside, Riverside, California, USA
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3
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Ullah S, Huyop F, Wahab RA, Huda N, Oyewusi HA, Sujana IGA, Saloko S, Andriani AASPR, Mohamad MAN, Abdul Hamid AA, Mohd Nasir MH, Antara NS, Gunam IBW. The first ITS1 profiling of honey samples from the Southeast Asian region Lombok, Bali and Banggi Island. Sci Rep 2024; 14:14122. [PMID: 38898099 PMCID: PMC11187073 DOI: 10.1038/s41598-024-64838-3] [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: 03/01/2024] [Accepted: 06/13/2024] [Indexed: 06/21/2024] Open
Abstract
Southern Asian flowers offer honeybees a diversity of nectar. Based on its geographical origin, honey quality varies. Traditional methods are less authentic than DNA-based identification. The origin of honey is determined by pollen, polyphenolic, and macro-microorganisms. In this study, amplicon sequencing targets macro-microorganisms in eDNA using the ITS1 region to explore honey's geographical location and authentication. The variety of honey samples was investigated using ITS1 with Illumina sequencing. For all four honey samples, raw sequence reads showed 979,380 raw ITS1 amplicon reads and 375 ASVs up to the phylum level. The highest total number of 202 ASVs up to phylum level identified Bali honey with 211,189 reads, followed by Banggi honey with 309,207 a total number of 111 ASVs, and Lombok represents only 63 ASVs up to phylum level with several read 458,984. Based on Shannon and Chao1, honey samples from Bali (B2) and (B3) exhibited higher diversity than honey from Lombok (B1) and green honey from Sabah (B4), while the Simpson index showed that Banggi honey (B4) had higher diversity. Honey samples had significant variance in mycobiome taxonomic composition and abundance. Zygosaccharomyces and Aspergillus were the main genera found in Lombok honey, with percentages of 68.81% and 29.76% respectively. Bali honey samples (B2 and B3) were identified as having a significant amount of the genus Aureobasidium, accounting for 40.81% and 25% of the readings, respectively. The microbiome composition of Banggi honey (B4) showed a high presence of Zygosaccharomyces 45.17% and Aureobasidium 35.24%. The ITS1 analysis effectively distinguishes between honey samples of different origins and its potential as a discriminatory tool for honey origin and authentication purposes.
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Affiliation(s)
- Saeed Ullah
- Department of Biosciences, Faculty of Science, Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia
| | - Fahrul Huyop
- Department of Biosciences, Faculty of Science, Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia.
- Bioindustry Laboratory, Department of Agro-Industrial Technology, Udayana University, Denpasar, Indonesia.
| | - Roswanira Ab Wahab
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia
| | - Nurul Huda
- Faculty of Sustainable Agriculture, Universiti Malaysia Sabah, 90509, Sandakan, Sabah, Malaysia
| | - Habeebat Adekilekun Oyewusi
- Department of Biosciences, Faculty of Science, Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia
- Biochemistry Unit, Department of Science Technology, The Federal Polytechnic, P. M. B 5351, Ado Ekiti, Ekiti State, Nigeria
| | - I Gede Arya Sujana
- Bioindustry Laboratory, Department of Agro-Industrial Technology, Udayana University, Denpasar, Indonesia
| | - Satrijo Saloko
- Faculty of Food Technology and Agro Industry, University of Mataram, Mataram, Nusa Tenggara Barat, 83126, Indonesia
| | | | - Mohd Azrul Naim Mohamad
- Research Unit for Bioinformatics and Computational Biology (RUBIC), Kulliyyah of Science, International Islamic University Malaysia, Bandar Indera Mahkota, 25200, Kuantan, Pahang, Malaysia
| | - Azzmer Azzar Abdul Hamid
- Research Unit for Bioinformatics and Computational Biology (RUBIC), Kulliyyah of Science, International Islamic University Malaysia, Bandar Indera Mahkota, 25200, Kuantan, Pahang, Malaysia
| | - Mohd Hamzah Mohd Nasir
- Research Unit for Bioinformatics and Computational Biology (RUBIC), Kulliyyah of Science, International Islamic University Malaysia, Bandar Indera Mahkota, 25200, Kuantan, Pahang, Malaysia
| | - Nyoman Semadi Antara
- Bioindustry Laboratory, Department of Agro-Industrial Technology, Udayana University, Denpasar, Indonesia
| | - Ida Bagus Wayan Gunam
- Bioindustry Laboratory, Department of Agro-Industrial Technology, Udayana University, Denpasar, Indonesia.
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Asoutis Didaras N, Karaiskou I, Nikolaidis M, Siaperopoulou C, Georgi I, Tsadila C, Karatasou K, Amoutzias GD, Mossialos D. Contribution of Microbiota to Bioactivity Exerted by Bee Bread. Pharmaceuticals (Basel) 2024; 17:761. [PMID: 38931428 PMCID: PMC11206572 DOI: 10.3390/ph17060761] [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: 04/04/2024] [Revised: 05/27/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
Bee-collected pollen (BCP) and bee bread (BB) are honey bee products known for their beneficial biological properties. The main goal of this study was to investigate BB microbiota and its contribution to bioactivity exerted by BB. The microbiota of BB samples collected at different maturation stages was investigated via culture-independent (Next Generation Sequencing, NGS) and culture-dependent methods. Microbial communities dynamically fluctuate during BB maturation, ending in a stable microbial community structure in mature BB. Bee bread bacterial isolates were tested for phenotypes and genes implicated in the production and secretion of enzymes as well as antibacterial activity. Out of 309 bacterial isolates, 41 secreted hemicellulases, 13 cellulases, 39 amylases, 132 proteinases, 85 Coomassie brilliant blue G or R dye-degrading enzymes and 72 Malachite Green dye-degrading enzymes. Furthermore, out of 309 bacterial isolates, 42 exhibited antibacterial activity against Staphylococcus aureus, 34 against Pseudomonas aeruginosa, 47 against Salmonella enterica ser. Typhimurium and 43 against Klebsiella pneumoniae. Artificially fermented samples exerted higher antibacterial activity compared to fresh BCP, strongly indicating that BB microbiota contribute to BB antibacterial activity. Our findings suggest that BB microbiota is an underexplored source of novel antimicrobial agents and enzymes that could lead to new applications in medicine and the food industry.
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Affiliation(s)
- Nikos Asoutis Didaras
- Microbial Biotechnology-Molecular Bacteriology-Virology Laboratory, Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Larissa, Greece; (N.A.D.); (I.K.); (C.S.); (I.G.); (C.T.)
| | - Ioanna Karaiskou
- Microbial Biotechnology-Molecular Bacteriology-Virology Laboratory, Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Larissa, Greece; (N.A.D.); (I.K.); (C.S.); (I.G.); (C.T.)
| | - Marios Nikolaidis
- Bioinformatics Laboratory, Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Larissa, Greece; (M.N.); (G.D.A.)
| | - Christina Siaperopoulou
- Microbial Biotechnology-Molecular Bacteriology-Virology Laboratory, Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Larissa, Greece; (N.A.D.); (I.K.); (C.S.); (I.G.); (C.T.)
| | - Irini Georgi
- Microbial Biotechnology-Molecular Bacteriology-Virology Laboratory, Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Larissa, Greece; (N.A.D.); (I.K.); (C.S.); (I.G.); (C.T.)
| | - Christina Tsadila
- Microbial Biotechnology-Molecular Bacteriology-Virology Laboratory, Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Larissa, Greece; (N.A.D.); (I.K.); (C.S.); (I.G.); (C.T.)
| | - Katerina Karatasou
- Apicultural Centre of Larissa, Federation of Greek Beekeepers Associations, 41222 Larissa, Greece;
| | - Grigoris D. Amoutzias
- Bioinformatics Laboratory, Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Larissa, Greece; (M.N.); (G.D.A.)
| | - Dimitris Mossialos
- Microbial Biotechnology-Molecular Bacteriology-Virology Laboratory, Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Larissa, Greece; (N.A.D.); (I.K.); (C.S.); (I.G.); (C.T.)
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Nguyen PN, Samad-Zada F, Chau KD, Rehan SM. Microbiome and floral associations of a wild bee using biodiversity survey collections. Environ Microbiol 2024; 26:e16657. [PMID: 38817079 DOI: 10.1111/1462-2920.16657] [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: 01/21/2024] [Accepted: 05/07/2024] [Indexed: 06/01/2024]
Abstract
The health of bees can be assessed through their microbiome, which serves as a biomarker indicating the presence of both beneficial and harmful microorganisms within a bee community. This study presents the characterisation of the bacterial, fungal, and plant composition on the cuticle of adult bicoloured sweat bees (Agapostemon virescens). These bees were collected using various methods such as pan traps, blue vane traps and sweep netting across the northern extent of their habitat range. Non-destructive methods were employed to extract DNA from the whole pinned specimens of these wild bees. Metabarcoding of the 16S rRNA, ITS and rbcL regions was then performed. The study found that the method of collection influenced the detection of certain microbial and plant taxa. Among the collection methods, sweep net samples showed the lowest fungal alpha diversity. However, minor differences in bacterial or fungal beta diversity suggest that no single method is significantly superior to others. Therefore, a combination of techniques can cater to a broader spectrum of microbial detection. The study also revealed regional variations in bacterial, fungal and plant diversity. The core microbiome of A. virescens comprises two bacteria, three fungi and a plant association, all of which are commonly detected in other wild bees. These core microbes remained consistent across different collection methods and locations. Further extensive studies of wild bee microbiomes across various species and landscapes will help uncover crucial relationships between pollinator health and their environment.
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Affiliation(s)
- Phuong N Nguyen
- Department of Biology, York University, Toronto, Ontario, Canada
| | | | - Katherine D Chau
- Department of Biology, York University, Toronto, Ontario, Canada
| | - Sandra M Rehan
- Department of Biology, York University, Toronto, Ontario, Canada
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6
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Al Naggar Y, Taha IM, Taha EKA, Zaghlool A, Nasr A, Nagib A, Elhamamsy SM, Abolaban G, Fahmy A, Hegazy E, Metwaly KH, Zahra AA. Gamma irradiation and ozone application as preservation methods for longer-term storage of bee pollen. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:25192-25201. [PMID: 38462566 PMCID: PMC11023998 DOI: 10.1007/s11356-024-32801-4] [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: 08/09/2023] [Accepted: 03/03/2024] [Indexed: 03/12/2024]
Abstract
Bee pollen is a healthy product with a good nutritional profile and therapeutic properties. Its high moisture content, however, promotes the growth of bacteria, molds, and yeast during storage commonly result in product degradation. Therefore, the aim of this study is to assess the effectiveness of gamma irradiation (GI) and ozone (OZ) as bee pollen preservation methods for longer storage time, as well as whether they are influenced by pollen species. To do that, GI at a dosage of 2.5, 5.0, and 7.5 kGy was applied at a rate of 0.68 kGy/h and OZ application at a concentration of 0.01, 0.02, and 0.03 g/m3 was applied for one time for 6 h, to Egyptian clover and maize bee pollen, then stored at ambient temperature for 6 months. We then determined the total phenolic content (TPC) and antioxidant activity of treated and non-treated pollen samples at 0, 3, and 6 months of storage. Total bacteria, mold, and yeast count were also evaluated at 0, 2, 4, and 6 months. Statistical analyses revealed that, TPC, antioxidant, and microbial load of both clover and maize pollen samples were significantly (p < 0.05) affected by both treatment and storage time and their interaction. Both methods were extremely effective at preserving the antioxidant properties of pollen samples after 6 months of storage at room temperature. Furthermore, the highest concentrations of both GI and OZ applications completely protected pollen samples from mold and yeast while decreasing bacterial contamination. GI at the highest dose (7.5 KGy) was found to be more effective than other GI doses and OZ application in preserving biologically active compounds and lowering the microbial count of pollen samples for 6 months. As a result, we advise beekeepers to use GI at this dose for longer-term storage.
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Affiliation(s)
- Yahya Al Naggar
- Zoology Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
- Center of Bee Research and its Products, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia.
| | - Ibrahim M Taha
- Department of Food Science and Technology, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - El-Kazafy A Taha
- Department of Economic Entomology, Faculty of Agriculture, Kafr Elsheikh University, Kafr Elsheikh, 33516, Egypt
| | - Ayman Zaghlool
- Department of Food Science and Technology, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Ali Nasr
- Department of Food Science and Technology, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Ashraf Nagib
- Department of Food Science and Technology, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Sam M Elhamamsy
- Department of Biochemistry, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Gomaa Abolaban
- Department of Plant Protection, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Alaa Fahmy
- Chemistry Department, Faculty of Science, Al-Azhar University, Cairo, 11884, Egypt
- Petrochemicals Department, Faculty of Engineering, Pharos University in Alexandria, Alexandria, Egypt
| | - Eslam Hegazy
- Department of Food Irradiation, National Centre for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, 11787, Egypt
| | - Khaled H Metwaly
- Center of Plasma Technology, Al-Azhar University, Cairo, 11884, Egypt
| | - Abdullah A Zahra
- Department of Plant Protection, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
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7
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Aynalem T, Meng L, Getachew A, Wu J, Yu H, Tan J, Li N, Xu S. A New Isolated Fungus and Its Pathogenicity for Apis mellifera Brood in China. Microorganisms 2024; 12:313. [PMID: 38399717 PMCID: PMC10892447 DOI: 10.3390/microorganisms12020313] [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: 11/10/2023] [Revised: 12/13/2023] [Accepted: 12/14/2023] [Indexed: 02/25/2024] Open
Abstract
In this article, we report the pathogenicity of a new strain of fungus, Rhizopus oryzae to honeybee larvae, isolated from the chalkbrood-diseased mummies of honeybee larvae and pupae collected from apiaries in China. Based on morphological observation and internal transcribed spacer (ITS) region analyses, the isolated pathogenic fungus was identified as R. oryzae. Koch's postulates were performed to determine the cause-and-effect pathogenicity of this isolate fungus. The in vitro pathogenicity of this virulent fungus in honeybees was tested by artificially inoculating worker larvae in the lab. The pathogenicity of this new fungus for honeybee larvae was both conidial-concentration and exposure-time dependent; its highly infectious and virulent effect against the larvae was observed at 1 × 105 conidia/larva in vitro after 96 h of challenge. Using probit regression analysis, the LT50 value against the larvae was 26.8 h at a conidial concentration of 1 × 105 conidia/larva, and the LC50 was 6.2 × 103 conidia/larva. These results indicate that the new isolate of R. oryzae has considerable pathogenicity in honeybee larvae. Additionally, this report suggests that pathogenic phytofungi may harm their associated pollinators. We recommend further research to quantify the levels, mechanisms, and pathways of the pathogenicity of this novel isolated pathogen for honeybee larvae at the colony level.
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Affiliation(s)
- Tessema Aynalem
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China; (T.A.); (L.M.); (A.G.); (J.W.); (H.Y.); (J.T.); (N.L.)
- College of Agriculture and Environmental Science, Bahir Dar University, Bahir Dar P.O. Box 26, Ethiopia
| | - Lifeng Meng
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China; (T.A.); (L.M.); (A.G.); (J.W.); (H.Y.); (J.T.); (N.L.)
| | - Awraris Getachew
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China; (T.A.); (L.M.); (A.G.); (J.W.); (H.Y.); (J.T.); (N.L.)
- College of Agriculture and Environmental Science, Bahir Dar University, Bahir Dar P.O. Box 26, Ethiopia
| | - Jiangli Wu
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China; (T.A.); (L.M.); (A.G.); (J.W.); (H.Y.); (J.T.); (N.L.)
| | - Huimin Yu
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China; (T.A.); (L.M.); (A.G.); (J.W.); (H.Y.); (J.T.); (N.L.)
| | - Jing Tan
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China; (T.A.); (L.M.); (A.G.); (J.W.); (H.Y.); (J.T.); (N.L.)
| | - Nannan Li
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China; (T.A.); (L.M.); (A.G.); (J.W.); (H.Y.); (J.T.); (N.L.)
| | - Shufa Xu
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China; (T.A.); (L.M.); (A.G.); (J.W.); (H.Y.); (J.T.); (N.L.)
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8
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Wang Y, Ma L, Xu B. Bee wisdom: exploring bee control strategies for food microflora by comparing the physicochemical characteristics and microbial composition of beebread. Microbiol Spectr 2023; 11:e0181823. [PMID: 37800944 PMCID: PMC10871783 DOI: 10.1128/spectrum.01818-23] [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: 04/30/2023] [Accepted: 08/05/2023] [Indexed: 10/07/2023] Open
Abstract
IMPORTANCE Bees are a valuable model for investigating the relationship between environmental factors, gut microbiota, and organismal health. Beebread, produced from collected pollen, is a natural food source and a primary reservoir of gut microorganisms. Although pollen typically has diverse bacterial species, beebread has low species richness and bacterial abundance. Consequently, considerable attention has been paid to the adaptive strategies employed by honey bees to cope with the microorganisms within their food environment during co-evolution with plants. This study identified the distribution patterns of beebread's physicochemical characteristics, showing how bees use fermentation to enrich specific microbes. These findings help understand the relationship between environmental and food-associated microbes and bee intestinal microbiota. They also bridge gaps in the literature and provide a valuable reference for studying the complex interplay between these factors.
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Affiliation(s)
- Ying Wang
- College of Animal Science and Technology, Shandong Agricultural University, Tai’an, China
| | - Lanting Ma
- College of Animal Science and Technology, Shandong Agricultural University, Tai’an, China
| | - Baohua Xu
- College of Animal Science and Technology, Shandong Agricultural University, Tai’an, China
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Svečnjak L, Bošković K, Prđun S, Mrkonjić Fuka M, Tanuwidjaja I. Metric and Spectral Insight into Bee-Pollen-to-Bee-Bread Transformation Process. Foods 2023; 12:4149. [PMID: 38002206 PMCID: PMC10669938 DOI: 10.3390/foods12224149] [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: 09/15/2023] [Revised: 11/08/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023] Open
Abstract
Due to numerous bioactive constituents, both bee pollen (BP) and bee bread (BB) represent valuable food supplements. The transformation of BP into BB is a complex biochemical in-hive process that enables the preservation of the pollen's nutritional value. The aim of this study was to determine the depth of the honeycomb cells in which bees store pollen and to provide a spectral insight into the chemical changes that occur during the BP-to-BB transformation process. This study was carried out on three experimental colonies of Apis mellifera carnica, from which fresh BP was collected using pollen traps, while BB samples were manually extracted from the cells two weeks after BP sampling. The samples were analyzed using infrared (FTIR-ATR) spectroscopy, and the depth of the cells was measured using a caliper. The results showed that the average depth of the cells was 11.0 mm, and that the bees stored BB up to an average of 7.85 mm, thus covering between ⅔ and ¾ (71.4%) of the cell. The FTIR-ATR analysis revealed unique spectral profiles of both BP and BB, indicating compositional changes primarily reflected in a higher water content and an altered composition of the carbohydrate fraction (and, to a lesser extent, the lipid fraction) in BB compared to BP.
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Affiliation(s)
- Lidija Svečnjak
- Department of Fisheries, Apiculture, Wildlife Management and Special Zoology, Faculty of Agriculture, University of Zagreb, Svetošimunska Cesta 25, 10000 Zagreb, Croatia (S.P.)
| | - Kristian Bošković
- Department of Fisheries, Apiculture, Wildlife Management and Special Zoology, Faculty of Agriculture, University of Zagreb, Svetošimunska Cesta 25, 10000 Zagreb, Croatia (S.P.)
| | - Saša Prđun
- Department of Fisheries, Apiculture, Wildlife Management and Special Zoology, Faculty of Agriculture, University of Zagreb, Svetošimunska Cesta 25, 10000 Zagreb, Croatia (S.P.)
| | - Mirna Mrkonjić Fuka
- Department of Microbiology, Faculty of Agriculture, University of Zagreb, Svetošimunska Cesta 25, 10000 Zagreb, Croatia; (M.M.F.); (I.T.)
| | - Irina Tanuwidjaja
- Department of Microbiology, Faculty of Agriculture, University of Zagreb, Svetošimunska Cesta 25, 10000 Zagreb, Croatia; (M.M.F.); (I.T.)
- Institute of Sanitary Engineering and Water Pollution Control, Department of Water, Atmosphere and Environment, University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
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10
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Pełka K, Hafeez AB, Worobo RW, Szweda P. Probiotic potential of Bacillus Isolates from Polish Bee Pollen and Bee Bread. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10157-4. [PMID: 37725304 DOI: 10.1007/s12602-023-10157-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/12/2023] [Indexed: 09/21/2023]
Abstract
The main goal of this study was the evaluation of the probiotic potential of 10 Bacillus spp. strains isolated from 5 bee bread and 3 bee pollen samples. The antagonistic interaction with Staphylococcus aureus and Escherichia coli was a primary criterion for the preliminary selection of the isolates. Three out of ten strains-PY2.3 (isolated from pollen), BP20.15 and BB10.1 (both isolated from bee bread)-were found to be possible probiotic strains. All these strains are safe for humans (exhibiting [Formula: see text]-hemolytic activity) and meet all essential requirements for probiotics in terms of viability in the presence of bile salts and acid conditions, hydrophobicity, auto-aggregation, and co-aggregation with the cells of important human pathogenic bacteria. They also assimilate more than 30% of cholesterol after 24 h of incubation. These three isolates are resistant to penicillin but sensitive (or exhibit moderate resistance) to the other nine antibiotics tested herein. On the basis of whole-genome sequencing, BP20.15 and BB10.1 were classified as B. subtilis and PY2.3 as B. velezensis. Moreover, genomic analyses revealed that all these isolates are potential producers of different antimicrobial compounds, including bacteriocins and secondary metabolites. The outcomes of this study have proven that some of the Bacillus strains isolated from bee pollen or bee bread are potential probiotics.
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Affiliation(s)
- Karolina Pełka
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdansk University of Technology, Narutowicza 11/12, 80233, Gdansk, Poland
| | - Ahmer Bin Hafeez
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdansk University of Technology, Narutowicza 11/12, 80233, Gdansk, Poland
| | - Randy W Worobo
- Department of Food Science, Cornell University, Ithaca, NY, 14853, USA
| | - Piotr Szweda
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdansk University of Technology, Narutowicza 11/12, 80233, Gdansk, Poland.
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11
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Vocadlova K, Lüddecke T, Patras MA, Marner M, Hartwig C, Benes K, Matha V, Mraz P, Schäberle TF, Vilcinskas A. Extracts of Talaromyces purpureogenus Strains from Apis mellifera Bee Bread Inhibit the Growth of Paenibacillus spp. In Vitro. Microorganisms 2023; 11:2067. [PMID: 37630627 PMCID: PMC10459140 DOI: 10.3390/microorganisms11082067] [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: 07/24/2023] [Revised: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Honey bees coexist with fungi that colonize hive surfaces and pollen. Some of these fungi are opportunistic pathogens, but many are beneficial species that produce antimicrobial compounds for pollen conservation and the regulation of pathogen populations. In this study, we tested the in vitro antimicrobial activity of Talaromyces purpureogenus strains isolated from bee bread against Paenibacillus alvei (associated with European foulbrood disease) and three Aspergillus species that cause stonebrood disease. We found that methanol extracts of T. purpureogenus strains B18 and B195 inhibited the growth of P. alvei at a concentration of 0.39 mg/mL. Bioactivity-guided dereplication revealed that the activity of the crude extracts correlated with the presence of diketopiperazines, a siderophore, and three unknown compounds. We propose that non-pathogenic fungi such as Talaromyces spp. and their metabolites in bee bread could be an important requirement to prevent disease. Agricultural practices involving the use of fungicides can disrupt the fungal community and thus negatively affect the health of bee colonies.
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Affiliation(s)
- Katerina Vocadlova
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, Ohlebergsweg 12, 35392 Giessen, Germany; (K.V.)
| | - Tim Lüddecke
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, Ohlebergsweg 12, 35392 Giessen, Germany; (K.V.)
- LOEWE Centre for Translational Biodiversity Genomics (LOEWE-TBG), 60325 Frankfurt, Germany
| | - Maria A. Patras
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, Ohlebergsweg 12, 35392 Giessen, Germany; (K.V.)
| | - Michael Marner
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, Ohlebergsweg 12, 35392 Giessen, Germany; (K.V.)
| | - Christoph Hartwig
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, Ohlebergsweg 12, 35392 Giessen, Germany; (K.V.)
| | - Karel Benes
- OncoRa s.r.o., Nemanicka 2722, 37001 Ceske Budejovice, Czech Republic
| | - Vladimir Matha
- Retorta s.r.o., Tresnova 316, 37382 Borsov nad Vltavou, Czech Republic
| | - Petr Mraz
- Faculty of Agriculture and Technology, University of South Bohemia in Ceske Budejovice, Studentska 1668, 37005 Ceske Budejovice, Czech Republic
| | - Till F. Schäberle
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, Ohlebergsweg 12, 35392 Giessen, Germany; (K.V.)
- Institute for Insect Biotechnology, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 26–32, 35392 Giessen, Germany
| | - Andreas Vilcinskas
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, Ohlebergsweg 12, 35392 Giessen, Germany; (K.V.)
- Institute for Insect Biotechnology, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 26–32, 35392 Giessen, Germany
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12
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Rutkowski D, Weston M, Vannette RL. Bees just wanna have fungi: a review of bee associations with nonpathogenic fungi. FEMS Microbiol Ecol 2023; 99:fiad077. [PMID: 37422442 PMCID: PMC10370288 DOI: 10.1093/femsec/fiad077] [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: 04/20/2023] [Revised: 06/15/2023] [Accepted: 07/06/2023] [Indexed: 07/10/2023] Open
Abstract
Bee-fungus associations are common, and while most studies focus on entomopathogens, emerging evidence suggests that bees associate with a variety of symbiotic fungi that can influence bee behavior and health. Here, we review nonpathogenic fungal taxa associated with different bee species and bee-related habitats. We synthesize results of studies examining fungal effects on bee behavior, development, survival, and fitness. We find that fungal communities differ across habitats, with some groups restricted mostly to flowers (Metschnikowia), while others are present almost exclusively in stored provisions (Zygosaccharomyces). Starmerella yeasts are found in multiple habitats in association with many bee species. Bee species differ widely in the abundance and identity of fungi hosted. Functional studies suggest that yeasts affect bee foraging, development, and pathogen interactions, though few bee and fungal taxa have been examined in this context. Rarely, fungi are obligately beneficial symbionts of bees, whereas most are facultative bee associates with unknown or ecologically contextual effects. Fungicides can reduce fungal abundance and alter fungal communities associated with bees, potentially disrupting bee-fungi associations. We recommend that future study focus on fungi associated with non-honeybee species and examine multiple bee life stages to document fungal composition, abundance, and mechanistic effects on bees.
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Affiliation(s)
- Danielle Rutkowski
- 367 Briggs Hall, Department of Entomology and Nematology, University of California Davis, Davis, CA 95616, United States
| | - Makena Weston
- 367 Briggs Hall, Department of Entomology and Nematology, University of California Davis, Davis, CA 95616, United States
| | - Rachel L Vannette
- 367 Briggs Hall, Department of Entomology and Nematology, University of California Davis, Davis, CA 95616, United States
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13
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Farlow AJ, Rupasinghe DB, Naji KM, Capon RJ, Spiteller D. Rosenbergiella meliponini D21B Isolated from Pollen Pots of the Australian Stingless Bee Tetragonula carbonaria. Microorganisms 2023; 11:microorganisms11041005. [PMID: 37110428 PMCID: PMC10142583 DOI: 10.3390/microorganisms11041005] [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: 03/14/2023] [Revised: 04/05/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
Rosenbergiella bacteria have been previously isolated predominantly from floral nectar and identified in metagenomic screenings as associated with bees. Here, we isolated three Rosenbergiella strains from the robust Australian stingless bee Tetragonula carbonaria sharing over 99.4% sequence similarity with Rosenbergiella strains isolated from floral nectar. The three Rosenbergiella strains (D21B, D08K, D15G) from T. carbonaria exhibited near-identical 16S rDNA. The genome of strain D21B was sequenced; its draft genome contains 3,294,717 bp, with a GC content of 47.38%. Genome annotation revealed 3236 protein-coding genes. The genome of D21B differs sufficiently from the closest related strain, Rosenbergiella epipactidis 2.1A, to constitute a new species. In contrast to R. epipactidis 2.1A, strain D21B produces the volatile 2-phenylethanol. The D21B genome contains a polyketide/non-ribosomal peptide gene cluster not present in any other Rosenbergiella draft genomes. Moreover, the Rosenbergiella strains isolated from T. carbonaria grew in a minimal medium without thiamine, but R. epipactidis 2.1A was thiamine-dependent. Strain D21B was named R. meliponini D21B, reflecting its origin from stingless bees. Rosenbergiella strains may contribute to the fitness of T. carbonaria.
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Affiliation(s)
- Anthony J Farlow
- Chemical Ecology/Biological Chemistry, Department of Biology, University of Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany
| | - Darshani B Rupasinghe
- Chemical Ecology/Biological Chemistry, Department of Biology, University of Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany
| | - Khalid M Naji
- Chemical Ecology/Biological Chemistry, Department of Biology, University of Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany
| | - Robert J Capon
- Centre for Drug Discovery, Institute for Molecular Bioscience, The University of Queensland, 306 Carmody Road, Brisbane, QLD 4072, Australia
| | - Dieter Spiteller
- Chemical Ecology/Biological Chemistry, Department of Biology, University of Konstanz, Universitätsstraße 10, 78457 Konstanz, Germany
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14
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Nano-managing silver and zinc as bio-conservational approach against pathogens of the honey bee. J Biotechnol 2023; 365:1-10. [PMID: 36708999 DOI: 10.1016/j.jbiotec.2023.01.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 01/24/2023] [Indexed: 01/27/2023]
Abstract
Herein, silver and zinc oxide Nanoparticles (NPs) were synthesized by using W. coagulant fruit extract as reducing agent and capping agent. The green synthesized NP with distinct properties were used for novel application against fungal and bacterial pathogen of honey bee (A. mellifera). The UV-spectroscopy confirms the synthesis of silver and zinc oxide NPs at 420 nm and 350 nm respectively. Further, XRD evaluated the monoclinic structure of Ag NPs while ZnO NPs showed wurtzite hexagonalcrystlized structure. Resistant honey bee pathogens such Paenibacilluslarvae, Melissococcus plutonius and Ascosphaera apis were isolated, identified and cultured in vitro to assess the antimicrobial potentials of Ag and ZnO NPs. Additionally, different biomolecules provide access to achieve maximum and stable Ag and ZnO NPs. It was also observed that with increasing the concentration of zinc oxide NPs and sliver NPs, zone of inhibition was also increased. Thus, present findings show that plant extracts can be a useful natural resource to prepare functional nonmaterial for targeted applications especially in the field of apicultural research.
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15
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Kahraman-Ilıkkan Ö. Bacterial Profile and Fatty Acid Composition of Anatolian Bee Bread Samples by Metataxonomic and Metabolomic Approach. Curr Microbiol 2023; 80:90. [PMID: 36723722 DOI: 10.1007/s00284-023-03195-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 01/14/2023] [Indexed: 02/02/2023]
Abstract
This study investigated the bacterial and postbiotic potential of three Anatolian bee bread samples obtained from different regions of Turkey (Marmara, Aegean, and Mediterranean) and offered for human consumption. The families most commonly found in Anatolian bee bread were Lactobacillaceae, Oscillospiraceae, Bacteroidaceae, Prevotellaceae, and Lachnospiraceae. Lactobacillus delbruckeii was highly abundant, but also other beneficial bacteria, known to be next-generation probiotics, were revealed in bee bread, such as Prevotalla copri, Faecalibacterium prausnitzii, and Akkermansia muciniphila. Apart from these beneficial bacteria, bee bread samples also harbored undesired bacteria such as Phocaeicola vulgatus, Phocaeicola dorei, and Clostridium perfringens. Fatty acid composition showed that bee bread samples had butyric acid, a short-chain fatty acid, as a postbiotic. Additionally, polyunsaturated fatty acids were also found such as alfa-linolenic acid and eicosadienoic acid. The fatty acids with the highest amounts were palmitic acid (~ 30%), stearic acid (~ 17%), and alpha-linolenic acid (~ 12%). One of the samples exhibited antimicrobial activity against Staphylococcus aureus.
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16
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Crude Extracts of Talaromyces Strains (Ascomycota) Affect Honey Bee ( Apis mellifera) Resistance to Chronic Bee Paralysis Virus. Viruses 2023; 15:v15020343. [PMID: 36851556 PMCID: PMC9958978 DOI: 10.3390/v15020343] [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: 01/05/2023] [Revised: 01/20/2023] [Accepted: 01/22/2023] [Indexed: 01/27/2023] Open
Abstract
Viruses contribute significantly to the global decline of honey bee populations. One way to limit the impact of such viruses is the introduction of natural antiviral compounds from fungi as a component of honey bee diets. Therefore, we examined the effect of crude organic extracts from seven strains of the fungal genus Talaromyces in honey bee diets under laboratory conditions. The strains were isolated from bee bread prepared by honey bees infected with chronic bee paralysis virus (CBPV). The antiviral effect of the extracts was also quantified in vitro using mammalian cells as a model system. We found that three extracts (from strains B13, B18 and B30) mitigated CBPV infections and increased the survival rate of bees, whereas other extracts had no effect (B11 and B49) or were independently toxic (B69 and B195). Extract B18 inhibited the replication of feline calicivirus and feline coronavirus (FCoV) in mammalian cells, whereas extracts B18 and B195 reduced the infectivity of FCoV by ~90% and 99%, respectively. Our results show that nonpathogenic fungi (and their products in food stores) offer an underexplored source of compounds that promote disease resistance in honey bees.
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17
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Xiong ZR, Sogin JH, Worobo RW. Microbiome analysis of raw honey reveals important factors influencing the bacterial and fungal communities. Front Microbiol 2023; 13:1099522. [PMID: 36713191 PMCID: PMC9877413 DOI: 10.3389/fmicb.2022.1099522] [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: 11/15/2022] [Accepted: 12/29/2022] [Indexed: 01/13/2023] Open
Abstract
Raw honeys contain diverse microbial communities. Previous studies have focused on isolating bacteria and fungi that are culturable, while missing a large proportion of the microbial community due to culture-based constraints. This study utilized next-generation sequencing (NGS) to analyze the composition of microorganisms in raw honey; these data can reveal environmental and physicochemical variables that are associated with different microbial communities. To examine the microbial composition (bacteria and fungi) of raw honey and analyze its association with physicochemical properties, four types of honey (monofloral, wildflower, manuka, and feral; n total = 36) were analyzed via amplicon metagenomics. The analyzed honey samples had relatively similar bacterial communities but more distinct and diverse fungal communities. Honey type was determined as a significant factor influencing alpha and beta diversity metrics of bacterial and fungal communities. For the bacterial communities, titratable acidity (TA) was associated with community richness and diversity. For the fungal communities, Brix, TA, and color were associated with community richness, while water activity and color were associated with community diversity. Additionally, important bacterial and fungal amplicon sequence variants (ASVs) that influenced the overall community were identified. Results from this study provide important insights into the microbial communities associated with different types of raw honey, which could improve our understanding of microbial dynamics in beehives, improve honey production, and prevent honeybee disease.
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Affiliation(s)
- Zirui Ray Xiong
- Department of Food Science, Cornell University, Ithaca, NY, United States
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18
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Tang QH, Li WL, Wang JP, Li XJ, Li D, Cao Z, Huang Q, Li JL, Zhang J, Wang ZW, Guo J, Li JL. Effects of spinetoram and glyphosate on physiological biomarkers and gut microbes in Bombus terrestris. Front Physiol 2023; 13:1054742. [PMID: 36699673 PMCID: PMC9868390 DOI: 10.3389/fphys.2022.1054742] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 12/19/2022] [Indexed: 01/11/2023] Open
Abstract
The sublethal effects of pesticide poisoning will have significant negative impacts on the foraging and learning of bees and bumblebees, so it has received widespread attention. However, little is known about the physiological effects of sublethal spinetoram and glyphosate exposure on bumblebees. We continuously exposed Bombus terrestris to sublethal (2.5 mg/L) spinetoram or glyphosate under controlled conditions for 10 days. The superoxide dismutase, glutathione-S-transferase, carboxylesterase, prophenoloxidase, α-amylase and protease activities, and changes in gut microbes were measured to understand the effects of sublethal pesticide exposure on the physiology and gut microbes of bumblebees. Sublethal pesticide exposure to significantly increased superoxide dismutase activity and significantly decreased gut α-amylase activity in bumblebees but had no significant effect on glutathione-S-transferase, carboxylesterase or gut protease activities. In addition, glyphosate increased the activity of prophenoloxidase. Interestingly, we observed that neither of the two pesticides had a significant effect on dominant gut bacteria, but glyphosate significantly altered the structure of the dominant gut fungal community, and reduced the relative abundance of Zygosaccharomyces associated with fat accumulation. These results suggest that sublethal spinetoram and glyphosate do not significantly affect the detoxification system of bumblebees, but may affect bumblebee health by inhibiting energy acquisition. Our results provide information on the sublethal effects of exposure to low concentrations of glyphosate and spinetoram on bumblebees in terms of physiology and gut microbes.
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Affiliation(s)
- Qi-He Tang
- Key Laboratory for Insect-Pollinator Biology, Ministry of Agriculture and Rural Affairs, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China,Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Wan-Li Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Jie-Ping Wang
- ChongQing Academy of Animal Sciences, Chongqing, China
| | - Xi-Jie Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Dan Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Zhe Cao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Qi Huang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Jia-Li Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Jun Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Zheng-Wei Wang
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Jinghong, China,*Correspondence: Zheng-Wei Wang, ; Jun Guo, ; Ji-Lian Li,
| | - Jun Guo
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China,*Correspondence: Zheng-Wei Wang, ; Jun Guo, ; Ji-Lian Li,
| | - Ji-Lian Li
- Key Laboratory for Insect-Pollinator Biology, Ministry of Agriculture and Rural Affairs, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China,*Correspondence: Zheng-Wei Wang, ; Jun Guo, ; Ji-Lian Li,
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19
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Microbial Community Structure among Honey Samples of Different Pollen Origin. Antibiotics (Basel) 2023; 12:antibiotics12010101. [PMID: 36671302 PMCID: PMC9855004 DOI: 10.3390/antibiotics12010101] [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: 12/18/2022] [Revised: 01/02/2023] [Accepted: 01/03/2023] [Indexed: 01/07/2023] Open
Abstract
Honey's antibacterial activity has been recently linked to the inhibitory effects of honey microbiota against a range of foodborne and human pathogens. In the current study, the microbial community structure of honey samples exerting pronounced antimicrobial activity was examined. The honey samples were obtained from different geographical locations in Greece and had diverse pollen origin (fir, cotton, fir-oak, and Arbutus unedo honeys). Identification of honey microbiota was performed by high-throughput amplicon sequencing analysis, detecting 335 distinct taxa in the analyzed samples. Regarding ecological indices, the fir and cotton honeys possessed greater diversity than the fir-oak and Arbutus unedo ones. Lactobacillus kunkeei (basionym of Apilactobacillus kun-keei) was the predominant taxon in the fir honey examined. Lactobacillus spp. appeared to be favored in honey from fir-originated pollen and nectar since lactobacilli were more pronounced in fir compared to fir-oak honey. Pseudomonas, Streptococcus, Lysobacter and Meiothermus were the predominant taxa in cotton honey, whereas Lonsdalea, the causing agent of acute oak decline, and Zymobacter, an osmotolerant facultative anaerobic fermenter, were the dominant taxa in fir-oak honey. Moreover, methylotrophic bacteria represented 1.3-3% of the total relative abundance, independently of the geographical and pollen origin, indicating that methylotrophy plays an important role in honeybee ecology and functionality. A total of 14 taxa were identified in all examined honey samples, including bacilli/anoxybacilli, paracocci, lysobacters, pseudomonads, and sphingomonads. It is concluded that microbial constituents of the honey samples examined were native gut microbiota of melliferous bees and microbiota of their flowering plants, including both beneficial bacteria, such as potential probiotic strains, and animal and plant pathogens, e.g., Staphylococcus spp. and Lonsdalea spp. Further experimentation will elucidate aspects of potential application of microbial bioindicators in identifying the authenticity of honey and honeybee-derived products.
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20
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Westreich LR, Westreich ST, Tobin PC. Bacterial and Fungal Symbionts in Pollen Provisions of a Native Solitary Bee in Urban and Rural Environments. MICROBIAL ECOLOGY 2022:10.1007/s00248-022-02164-9. [PMID: 36576521 DOI: 10.1007/s00248-022-02164-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
Among insects, symbionts such as bacteria and fungi can be linked to their physiology and immature development, and in some cases are part of a defense system against parasites and diseases. Current bacterial and fungal symbiont associations in solitary bees are understudied, especially in the Pacific Northwest region of the USA. We collected pollen provisions from the native spring-foraging solitary bee, Osmia lignaria Say, across two distinct foraging periods over 2 years at 22 sites along an urban-to-rural gradient in western Washington. We then used next-generation sequencing to identify bacterial and fungi within pollen provisions and assessed the effect of their richness and diversity on O. lignaria larval development success and adult emergence. We detected a significantly positive relationship between bacterial diversity in pollen with O. lignaria larval developmental success, and higher bacterial richness and diversity during the later foraging period. Fungal generic richness and diversity decreased with increasing plant richness. Although neither was associated with O. lignaria developmental success, we did detect Ascosphaera spp. known to be pathogenic to O. lignaria and other bee species. Neither bacterial or fungal richness or diversity was affected by site type when classified as urban or rural. This study provides new information on bacterial and fungal symbionts present in pollen provisions of a native solitary bee when foraging across urban and rural areas of the Pacific Northwest.
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Affiliation(s)
- Lila R Westreich
- School of Environmental and Forest Sciences, University of Washington, 3715 W. Stevens Way NE, Seattle, WA, 98195, USA
| | | | - Patrick C Tobin
- School of Environmental and Forest Sciences, University of Washington, 3715 W. Stevens Way NE, Seattle, WA, 98195, USA.
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21
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First report on isolation of Mucor bainieri from honeybees, Apis mellifera: Characterization and biological activities. BIOTECHNOLOGY REPORTS 2022; 36:e00770. [PMID: 36338578 PMCID: PMC9634281 DOI: 10.1016/j.btre.2022.e00770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/16/2022] [Accepted: 10/16/2022] [Indexed: 11/06/2022]
Abstract
The schematic mechanism for R1234yf combustion were revealed in unimolecular lysis reactions, colliding reactions with oxygen molecules, collision reaction with active radicals (H and OH radicals). The new chemical reaction equations for the combustion of R1234yf were proposed. This paper provided an effective method to establish the combustion mechanism of flammable hydrofluoroolefins.
Fungi are potential biocontrol agents and rich sources of secondary metabolites with demonstrated biological activities. This study aimed to isolate and identify fungi from surface-sterilized honeybees (Apis mellifera), as well as to evaluate their biological activities. One fungal isolate was obtained and identified morphologically and genetically as Mucor bainieri MK-Bee-2. Gas chromatography-mass spectroscopy (GC–MS) analysis of fungus crude extract, showed the existence of six major metabolites representing 92.48% of the total peak area. The crude extract of Mucor bainieri MK-Bee-2 was tested for antimicrobial, antioxidant, and antitumor activities. It demonstrated wide antimicrobial activities against human pathogenic Gram-positive and Gram-negative bacterial strains, as well as Candida albicans, with MIC values ranged from 62.5 to 250 µg/ml. The results revealed that the extract exhibited considerable antioxidant activities indicated by strong inhibition of both DPPH and ABTS free radicals. Additionally, the extract exhibited greater potential anticancer activity against both adenocarcinomic human non-small cell lung cancer cells (A549) [IC50 = 6.45 μg/ml], and immortal cell line hepatoma G2 (HepG2) human liver cancer cells [IC50 = 27.48 μg/ml] and higher selectivity in cancer cells than normal cell lines. Furthermore, the extract showed less cytotoxic activity against normal cells with higher IC50 values of 106.99 and 132.57 μg/ml against human lung fibroblast Wistar-38 (Wi-38) and oral epithelial cells (OEC), respectively. Taken together, the Mucor bainieri MK-Bee-2 extract comprises bioactive compounds as promising potential therapeutic candidates for the treatment of lung cancer. Strikingly, the extract sensitizes the lung cancer cells A549 to the ionizing radiation through the pro-apoptotic pathway as indicated by the annexin V flow cytometry analysis which showed that the extract reduced the apoptosis of lung cancer cells.
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Becchimanzi A, Nicoletti R. Aspergillus-bees: A dynamic symbiotic association. Front Microbiol 2022; 13:968963. [PMID: 36160228 PMCID: PMC9489833 DOI: 10.3389/fmicb.2022.968963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 08/22/2022] [Indexed: 11/24/2022] Open
Abstract
Besides representing one of the most relevant threats of fungal origin to human and animal health, the genus Aspergillus includes opportunistic pathogens which may infect bees (Hymenoptera, Apoidea) in all developmental stages. At least 30 different species of Aspergillus have been isolated from managed and wild bees. Some efficient behavioral responses (e.g., diseased brood removal) exerted by bees negatively affect the chance to diagnose the pathology, and may contribute to the underestimation of aspergillosis importance in beekeeping. On the other hand, bee immune responses may be affected by biotic and abiotic stresses and suffer from the loose co-evolutionary relationships with Aspergillus pathogenic strains. However, if not pathogenic, these hive mycobiota components can prove to be beneficial to bees, by affecting the interaction with other pathogens and parasites and by detoxifying xenobiotics. The pathogenic aptitude of Aspergillus spp. likely derives from the combined action of toxins and hydrolytic enzymes, whose effects on bees have been largely overlooked until recently. Variation in the production of these virulence factors has been observed among strains, even belonging to the same species. Toxigenic and non-toxigenic strains/species may co-exist in a homeostatic equilibrium which is susceptible to be perturbed by several external factors, leading to mutualistic/antagonistic switch in the relationships between Aspergillus and bees.
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Affiliation(s)
- Andrea Becchimanzi
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy
- *Correspondence: Andrea Becchimanzi,
| | - Rosario Nicoletti
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy
- Council for Agricultural Research and Economics, Research Centre for Olive, Fruit and Citrus Crops, Caserta, Italy
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Cui P, Kong K, Yao Y, Huang Z, Shi S, Liu P, Huang Y, Abbas N, Yu L, Zhang Y. Community composition, bacterial symbionts, antibacterial and antioxidant activities of honeybee-associated fungi. BMC Microbiol 2022; 22:168. [PMID: 35761187 PMCID: PMC9235140 DOI: 10.1186/s12866-022-02580-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 06/02/2022] [Indexed: 11/25/2022] Open
Abstract
Background Fungi associated with insects represent one potentially rich source for the discovery of novel metabolites. However, a comprehensive understanding of the fungal communities of Apis mellifera ligustica remains elusive. Results Here, we investigated the phylogenetic diversity and community composition of honeybee-associated fungi using combination of culture-dependent and culture-independent approaches. A total of forty-five fungi were isolated and purified from the Apis mellifera ligustica, royal jelly, and honeycomb, which belonged to four classes and eleven different genera. Furthermore, 28 bacterial 16S rRNA gene sequences were obtained by PCR from the fungal metagenome. High-throughput sequencing analyses revealed that the fungal communities were more diverse, a total of 62 fungal genera were detected in the honeybee gut by culture-independent method, whereas only 4 genera were isolated by culture-dependent method. Similarly, 247 fungal genera were detected in the honeycomb, whereas only 4 genera were isolated. In addition, we assessed the antibacterial and antioxidant activities of fungal isolates. Most fungal crude extracts obtained from the cultivation supernatant exhibited antioxidant activities. Only two fungal crude extracts displayed moderate activity against Escherichia coli and Staphylococcus aureus. Chemical analysis of Chaetomium subaffine MFFC22 led to the discovery of three known compounds, including cochliodinol (1), emodin (2), chrysophanol (3). Among them, cochliodinol (1) showed intense DPPH radical scavenging activity with the 50% inhibitory concentration (IC50) of 3.06 μg/mL, which was comparable to that of the positive ascorbic acid (IC50 = 2.25 μg/mL). Compound 2 displayed weak inhibitory activities against Micrococcus tetragenus and S. aureus. Conclusions This research provided a fundamental clue for the complex interactions among honeybees, fungi, bacterial symbionts, and the effects on the honeybee. Furthermore, the diversity of honeybee-associated fungi had great potential in finding the resource of new species and antioxidants. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-022-02580-4.
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Fungal Community Investigation from Propolis Natural Products: Diversity and Antibacterial Activities Evaluation. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:7151655. [PMID: 35469159 PMCID: PMC9034937 DOI: 10.1155/2022/7151655] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 02/24/2022] [Accepted: 03/16/2022] [Indexed: 12/21/2022]
Abstract
Discovering new species and interesting bioactive metabolites from customary sources is becoming progressively laborious. Propolis constitutes the largest diversified reserve of microbial constituents in the beehive. However, fungal communities associated with these environments remain insufficiently established. We present the first detailed investigation of the cultivable fungal community associated with Tunisian propolis, and we evaluate its antibacterial properties against pathogenic bacteria. A total of 80 fungal strains were isolated from propolis samples derived from seven different Tunisian locations. The majority of the isolated fungi were classified as Ascomycota (97.5%), and only 2.5% belonged to Basidiomycota. Our collection was clustered into 15 genera, among which Coniochaeta (36.25%), Aspergillus (15%), Penicillium (13.75%), Cladosporium (10%), Fusarium (7.5%), Didymella (5%), and Alternaria (3.75%) were the most common. Evaluation of the antibacterial activity revealed that 25.6% of the total community showed a broad range of antibacterial activity. Particularly, the Penicillium griseofulvum CC8 strain has manifested the strongest inhibitory effects against all the tested bacteria.
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25
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Rebelo KS, Nunez CEC, Cazarin CBB, Maróstica Júnior MR, Kristiansen K, Danneskiold-Samsøe NB. Pot-pollen supplementation reduces fasting glucose and modulates the gut microbiota in high-fat/high-sucrose fed C57BL/6 mice. Food Funct 2022; 13:3982-3992. [PMID: 35311861 DOI: 10.1039/d1fo03019a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Pot-pollen is a mixture of pollen and nectar from flowers combined with salivary substances of stingless bees, which together are fermented inside cerumen pots. As pot-pollen is rich in polyphenols, we hypothesized that dietary ingestion could modulate obesity, glucose metabolism, and the gut microbiota in an animal model of diet-induced obesity. Male C57BL/6J mice were fed a low-fat/low-sucrose diet (LF/LS), a HF/HS diet or a HF/HS diet containing 0.1% pot-pollen (HF/HS-PP) for 12 weeks. In HF/HS-fed mice, pot-pollen supplementation decreased fasting blood glucose and increased glucose-stimulated insulin secretion without modifying weight gain, body composition, glucose tolerance, and insulin sensitivity. Intake of pot-pollen resulted in changes of the gut microbiota, including a decrease in the abundance of the Rikenellaceae RC9 gut group and Lactobacillus, and an increase in the abundance of Romboutsia. Correlations between genus abundances and metabolic changes in response to supplementation indicated that the gut microbiota contributed to the positive effects of pot-pollen ingestion on fasting glucose. Pot-pollen supplementation-associated changes in the gut microbiota composition correlated with the lowering of fasting glucose levels without modulating weight gain.
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Affiliation(s)
- Kemilla Sarmento Rebelo
- Department of Food and Nutrition, School of Food Engineering, University of Campinas, C.P. 6121, 13083-862, Campinas, SP, Brazil. .,Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Universitetsparken 13, DK-2100 Copenhagen, Denmark
| | - Carla Evelyn Coimbra Nunez
- Department of Food and Nutrition, School of Food Engineering, University of Campinas, C.P. 6121, 13083-862, Campinas, SP, Brazil. .,Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Universitetsparken 13, DK-2100 Copenhagen, Denmark
| | - Cinthia Baú Betim Cazarin
- Department of Food and Nutrition, School of Food Engineering, University of Campinas, C.P. 6121, 13083-862, Campinas, SP, Brazil.
| | - Mário Roberto Maróstica Júnior
- Department of Food and Nutrition, School of Food Engineering, University of Campinas, C.P. 6121, 13083-862, Campinas, SP, Brazil.
| | - Karsten Kristiansen
- Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Universitetsparken 13, DK-2100 Copenhagen, Denmark
| | - Niels Banhos Danneskiold-Samsøe
- Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Universitetsparken 13, DK-2100 Copenhagen, Denmark
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26
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Gruneck L, Gentekaki E, Khongphinitbunjong K, Popluechai S. Distinct gut microbiota profiles of Asian honey bee (Apis cerana) foragers. Arch Microbiol 2022; 204:187. [PMID: 35192066 DOI: 10.1007/s00203-022-02800-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 02/03/2022] [Accepted: 02/10/2022] [Indexed: 01/05/2023]
Abstract
Bee gut microbial communities have been studied extensively and linked to honey bee biology in terms of stages of bee development and behavior. Associations of bee gut microbiota in health and disease have also been explored. A large number of studies have centered on the gut microbiome of Apis mellifera, with similar investigations lagging far behind in Asian honey bee foragers. In this study, we characterized and compared the gut bacterial profiles of foragers and nurse bees of A. cerana and A. mellifera. Analysis of 16S rRNA partial gene sequences revealed significant differences in gut bacterial communities between the two honey bee species. Despite sharing dominant taxa, Bacteroides was more abundant in A. cerana, while Proteobacteria was higher in A. mellifera. Specific gut members are distinctly associated with hosts performing different tasks (i.e. nurse bees versus foragers). An exclusive abundance of Apibacter detected in Asian honey bee seemed to be a microbial signature of A. cerana foragers. Overall, our study highlights that variations in gut microbiota could be linked to task-specific (nurse bees and foragers) bacterial species associated with honey bees. Future investigations on the symbiotic relationship between host and the resident microbiota would be beneficial for improving honey bee health.
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Affiliation(s)
- Lucsame Gruneck
- Gut Microbiome Research Group, Mae Fah Luang University, Muang, Chiang Rai, Thailand
| | - Eleni Gentekaki
- Gut Microbiome Research Group, Mae Fah Luang University, Muang, Chiang Rai, Thailand.,School of Science, Mae Fah Luang University, Muang, Chiang Rai, Thailand
| | - Kitiphong Khongphinitbunjong
- School of Science, Mae Fah Luang University, Muang, Chiang Rai, Thailand.,Microbial Products and Innovation Group, Mae Fah Luang University, Muang, Chiang Rai, Thailand
| | - Siam Popluechai
- Gut Microbiome Research Group, Mae Fah Luang University, Muang, Chiang Rai, Thailand. .,School of Science, Mae Fah Luang University, Muang, Chiang Rai, Thailand.
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27
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Wang Y, Li Z, Ma L, Li G, Han K, Liu Z, Wang H, Xu B. The Native Dietary Habits of the Two Sympatric Bee Species and Their Effects on Shaping Midgut Microorganisms. Front Microbiol 2021; 12:738226. [PMID: 34690980 PMCID: PMC8529121 DOI: 10.3389/fmicb.2021.738226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 09/14/2021] [Indexed: 12/27/2022] Open
Abstract
The intestinal microbial community composition of different bee species typically has host specificity, yet little is known about the underlying formation mechanism. There are signs that dietary habits vary in different bee species, suggesting that there may be close relationships between dietary habits and intestinal microorganisms. We explored this hypothesis by comparing the dietary habits and gut microbiota of two common bee species (Apis mellifera L. and Apis cerana cerana) in China. Bee bread and midgut samples from wild and laboratory-reared bees were collected, and the differences in intestinal microbial community composition and growth and development before and after the change in dietary habits of different bee species were compared. We found that the two sympatric species had different dietary specializations and similar metagenomic diversities. The microbiota composition differed between the two species. Moreover, we revealed that changes in native dietary habits destroyed the intestinal microbiota community composition, negatively affecting the growth and development of honeybees.
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Affiliation(s)
- Ying Wang
- Department of Science and Technology, Shandong Agricultural University, Taian, China
| | - Zhenfang Li
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Lanting Ma
- College of Animal Science and Technology, Shandong Agricultural University, Taian, China
| | - Guilin Li
- College of Life Sciences, Qufu Normal University, Jining, China
| | - Kai Han
- College of Animal Science and Technology, Shandong Agricultural University, Taian, China
| | - Zhenguo Liu
- College of Animal Science and Technology, Shandong Agricultural University, Taian, China
| | - Hongfang Wang
- College of Animal Science and Technology, Shandong Agricultural University, Taian, China
| | - Baohua Xu
- College of Animal Science and Technology, Shandong Agricultural University, Taian, China
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28
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A Snapshot Picture of the Fungal Composition of Bee Bread in Four Locations in Bulgaria, Differing in Anthropogenic Influence. J Fungi (Basel) 2021; 7:jof7100845. [PMID: 34682266 PMCID: PMC8539294 DOI: 10.3390/jof7100845] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/21/2021] [Accepted: 10/07/2021] [Indexed: 01/30/2023] Open
Abstract
Information about the fungal composition of bee bread, and the fermentation processes to which the fungi contribute significantly, is rather scarce or fragmentary. In this study, we performed an NGS-based metagenomics snapshot picture study of the fungal composition of bee bread in four locations in Bulgaria during the most active honeybee foraging period at the end of June 2020. The sampling locations were chosen to differ significantly in climatic conditions, landscape, and anthropogenic pressure, and the Illumina 2 × 250 paired-end reads platform was used for amplicon metagenomics study of the ITS2 region. We found that some of the already reported canonical beneficial core fungal species were present within the studied samples. However, some fungal genera such as Monilinia, Sclerotinia, Golovinomyces, Toxicocladosporium, Pseudopithomyces, Podosphaera and Septoriella were reported for the first time among the dominant genera for a honeybee related product. Anthropogenic pressure negatively influences the fungal composition of the bee bread in two different ways-urban/industrial pressure affects the presence of pathogenic species, while agricultural pressure is reflected in a decrease of the ratio of the beneficial fungi.
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29
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Friedle C, D'Alvise P, Schweikert K, Wallner K, Hasselmann M. Changes of microorganism composition in fresh and stored bee pollen from Southern Germany. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:47251-47261. [PMID: 33893577 PMCID: PMC8692275 DOI: 10.1007/s11356-021-13932-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 04/09/2021] [Indexed: 06/12/2023]
Abstract
Analysis of plant pollen can provide valuable insights into the existing spectrum of microorganisms in the environment. When harvesting bee-collected pollen as a dietary supplement for human consumption, timely preservation of the freshly collected pollen is fundamental for product quality. Environmental microorganisms contained in freshly collected pollen can lead to spoilage by degradation of pollen components. In this study, freshly collected bee pollen was sampled at different locations and stored under various storage conditions to examine the hypothesis that storage conditions may have an effect on the composition of microorganisms in pollen samples. The samples were analyzed using 16S and 18S amplicon sequencing and characterized by palynological analysis. Interestingly, the bacterial communities between pollen samples from different locations varied only slightly, whereas for fungal community compositions, this effect was substantially increased. Further, we noticed that fungal communities in pollen are particularly sensitive to storage conditions. The fungal genera proportion Cladosporium and Mycosphaerella decreased, while Zygosaccharomyces and Aspergillus increased during storage. Aspergillus and Zygosaccharomyces fractions increased during storage at 30 °C, which could negatively impact the pollen quality if it is used as a dietary supplement.
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Affiliation(s)
- Carolin Friedle
- Apicultural State Institute, University of Hohenheim, Stuttgart, Germany.
- Institute of Animal Science, Department of Livestock Population Genomics, University of Hohenheim, Stuttgart, Germany.
| | - Paul D'Alvise
- Institute of Animal Science, Department of Livestock Population Genomics, University of Hohenheim, Stuttgart, Germany
| | - Karsten Schweikert
- Core Facility Hohenheim and Institute of Economics, University of Hohenheim, Stuttgart, Germany
| | - Klaus Wallner
- Apicultural State Institute, University of Hohenheim, Stuttgart, Germany
| | - Martin Hasselmann
- Institute of Animal Science, Department of Livestock Population Genomics, University of Hohenheim, Stuttgart, Germany
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30
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Suleiman JB, Mohamed M, Abu Bakar AB, Nna VU, Zakaria Z, Othman ZA, Aroyehun AB. Chemical Profile, Antioxidant Properties and Antimicrobial Activities of Malaysian Heterotrigona itama Bee Bread. Molecules 2021; 26:molecules26164943. [PMID: 34443531 PMCID: PMC8399440 DOI: 10.3390/molecules26164943] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/08/2021] [Accepted: 08/11/2021] [Indexed: 12/02/2022] Open
Abstract
The aim of the study was to determine the chemical profile, antioxidant properties and antimicrobial activities of Heterotrigona itama bee bread from Malaysia. The pH, presence of phytochemicals, antioxidant properties, total phenolic content (TPC) and total flavonoid content (TFC), as well as antimicrobial activities, were assessed. Results revealed a decrease in the pH of bee bread water extract (BBW) relative to bee bread ethanolic extract (BBE) and bee bread hot water extract (BBH). Further, alkaloids, flavonoids, phenols, tannins, saponins, terpenoids, resins, glycosides and xanthoproteins were detected in BBW, BBH and BBE. Also, significant decreases in TPC, TFC, DPPH activity and FRAP were detected in BBW relative to BBH and BBE. We detected phenolic acids such as gallic acid, caffeic acid, trans-ferulic acid, trans 3-hydroxycinnamic acid and 2-hydroxycinnamic acid, and flavonoids such as quercetin, kaempferol, apigenin and mangiferin in BBE using high-performance liquid chromatography analysis. The strongest antimicrobial activity was observed in Klebsilla pneumonia (MIC50 1.914 µg/mL), followed by E. coli (MIC50 1.923 µg/mL), Shigella (MIC50 1.813 µg/mL) and Salmonella typhi (MIC50 1.617 µg/mL). Bee bread samples possess antioxidant and antimicrobial properties. Bee bread contains phenolic acids and flavonoids, and could be beneficial in the management and treatment of metabolic diseases.
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Affiliation(s)
- Joseph Bagi Suleiman
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia; (J.B.S.); (A.B.A.B.); (Z.Z.); (Z.A.O.)
- Department of Science Laboratory Technology, Akanu Ibiam Federal Polytechnic, Unwana P.M.B. 1007, Ebonyi State, Nigeria
| | - Mahaneem Mohamed
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia; (J.B.S.); (A.B.A.B.); (Z.Z.); (Z.A.O.)
- Unit of Integrative Medicine, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
- Correspondence:
| | - Ainul Bahiyah Abu Bakar
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia; (J.B.S.); (A.B.A.B.); (Z.Z.); (Z.A.O.)
| | - Victor Udo Nna
- Department of Physiology, Faculty of Basic Medical Sciences, College of Medical Sciences, University of Calabar, Calabar P.M.B. 1115, Cross River State, Nigeria;
| | - Zaida Zakaria
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia; (J.B.S.); (A.B.A.B.); (Z.Z.); (Z.A.O.)
| | - Zaidatul Akmal Othman
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia; (J.B.S.); (A.B.A.B.); (Z.Z.); (Z.A.O.)
- Unit of Physiology, Faculty of Medicine, Universiti Sultan Zainal Abidin, Kuala Terengganu 20400, Terengganu, Malaysia
| | - Abdulqudus Bola Aroyehun
- Nutrition and Dietetics Program, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia;
- Clinical Nutrition, The Rowett Institute of Nutrition and Health, University of Aberdeen, Scotland AB24 3FX, UK
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31
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Microbial quality, physicochemical characteristics, proximate analysis, and antimicrobial activities of honey from Anfilo district. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101132] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Hsu CK, Wang DY, Wu MC. A Potential Fungal Probiotic Aureobasidium melanogenum CK-CsC for the Western Honey Bee, Apis mellifera. J Fungi (Basel) 2021; 7:508. [PMID: 34202244 PMCID: PMC8306588 DOI: 10.3390/jof7070508] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 06/21/2021] [Accepted: 06/23/2021] [Indexed: 12/23/2022] Open
Abstract
Aureobasidium melanogenum has been used as an animal feed additive for improving thehealth of pets, however, it has not yet been applied in honey bees. Here, a fungal strain CK-CsC isolated from bee bread pollen, was identified as A. melanogenum. Following characterizing CK-CsC fermentation broth, the 4-days fermentation broth (SYM medium or bee pollen) of the CK-CsC was used to feed newly emerged adult honey bees in cages under laboratory-controlled conditions for analysis of survival, gene expression of nutrient and antibacterial peptide, and gut microbiota of honey bees. It was found that the CK-CsC fermentation broth (SYM medium or bee pollen) is nontoxic to honey bees, and can regularly increase nutrient gene expression of honey bees. However, significant mortality of bees was observed after bees were fed on the supernatant liquid of the fermentation broth. Notably, this mortality can be lowered by the simultaneous consumption of bee pollen. The honey bees that were fed bee pollen exhibited more γ-Proteobacteria, Bacteriodetes, and Actinobacteria in their gut flora than did the honey bees fed only crude supernatant liquid extract. These findings indicate that A. melanogenum CK-CsC has high potential as a bee probiotic when it was fermented with bee pollen.
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Affiliation(s)
| | | | - Ming-Cheng Wu
- Department of Entomology, College of Agriculture and Natural Resources, National Chung Hsing University, Taichung 40227, Taiwan; (C.-K.H.); (D.-Y.W.)
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Bee Pollen and Bee Bread as a Source of Bacteria Producing Antimicrobials. Antibiotics (Basel) 2021; 10:antibiotics10060713. [PMID: 34199247 PMCID: PMC8231920 DOI: 10.3390/antibiotics10060713] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/05/2021] [Accepted: 06/09/2021] [Indexed: 12/12/2022] Open
Abstract
The principal objective of the study was the isolation and identification of bacteria that are present in mature bee bread (BB) and dried (ready for selling and consumption) bee pollen (BP). Obtained isolates were screened for their potential to inhibit select human pathogenic bacteria and their ability to produce enzymes of particular industrial importance. Four and five samples of BP and BB, respectively, were used for the study. In total, 81 strains of bacteria were isolated, and 34 (42%) of them exhibited antagonistic interactions with at least one reference strain of pathogenic bacteria, namely Staphylococcus aureus ATCC 25923, Staphylococcus aureus ATCC 29213, Staphylococcus epidermidis 12228, Pseudomonas aeruginosa ATCC 27857, and Escherichia coli ATCC 25922. The sequencing of the 16S rRNA gene revealed that all strains producing antimicrobials belong to the genus Bacillus spp., and among them, five species were identified: B. pumilus (n = 17), B. altitudinis (n = 9), B. licheniformis (n = 4), B. subtilis (n = 2), and B. safensis (n = 1). Furthermore, 69, 54, 39, and 29 of the strains exhibited lipolytic, proteolytic, cellulolytic, and esterolytic activity, respectively. Alpha amylase and beta galactosidase activity were rarely observed, and none of the strains produced laccase. The outcomes of the study revealed that BP and BB can be considered potential sources of bacteria producing antimicrobial agents and/or enzymes of particular industrial importance. Of course, additional research is required to verify this hypothesis, but the results of preliminary studies are promising.
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Daisley BA, Reid G. BEExact: a Metataxonomic Database Tool for High-Resolution Inference of Bee-Associated Microbial Communities. mSystems 2021; 6:e00082-21. [PMID: 33824193 PMCID: PMC8546966 DOI: 10.1128/msystems.00082-21] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 03/08/2021] [Indexed: 01/04/2023] Open
Abstract
High-throughput 16S rRNA gene sequencing technologies have robust potential to improve our understanding of bee (Hymenoptera: Apoidea)-associated microbial communities and their impact on hive health and disease. Despite recent computation algorithms now permitting exact inferencing of high-resolution exact amplicon sequence variants (ASVs), the taxonomic classification of these ASVs remains a challenge due to inadequate reference databases. To address this, we assemble a comprehensive data set of all publicly available bee-associated 16S rRNA gene sequences, systematically annotate poorly resolved identities via inclusion of 618 placeholder labels for uncultivated microbial dark matter, and correct for phylogenetic inconsistencies using a complementary set of distance-based and maximum likelihood correction strategies. To benchmark the resultant database (BEExact), we compare performance against all existing reference databases in silico using a variety of classifier algorithms to produce probabilistic confidence scores. We also validate realistic classification rates on an independent set of ∼234 million short-read sequences derived from 32 studies encompassing 50 different bee types (36 eusocial and 14 solitary). Species-level classification rates on short-read ASVs range from 80 to 90% using BEExact (with ∼20% due to "bxid" placeholder names), whereas only ∼30% at best can be resolved with current universal databases. A series of data-driven recommendations are developed for future studies. We conclude that BEExact (https://github.com/bdaisley/BEExact) enables accurate and standardized microbiota profiling across a broad range of bee species-two factors of key importance to reproducibility and meaningful knowledge exchange within the scientific community that together, can enhance the overall utility and ecological relevance of routine 16S rRNA gene-based sequencing endeavors.IMPORTANCE The failure of current universal taxonomic databases to support the rapidly expanding field of bee microbiota research has led to many investigators relying on "in-house" reference sets or manual classification of sequence reads (usually based on BLAST searches), often with vague identity thresholds and subjective taxonomy choices. This time-consuming, error- and bias-prone process lacks standardization, cripples the potential for comparative cross-study analysis, and in many cases is likely to incorrectly sway study conclusions. BEExact is structured on and leverages several complementary bioinformatic techniques to enable refined inference of bee host-associated microbial communities without any other methodological modifications necessary. It also bridges the gap between current practical outcomes (i.e., phylotype-to-genus level constraints with 97% operational taxonomic units [OTUs]) and the theoretical resolution (i.e., species-to-strain level classification with 100% ASVs) attainable in future microbiota investigations. Other niche habitats could also likely benefit from customized database curation via implementation of the novel approaches introduced in this study.
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Affiliation(s)
- Brendan A Daisley
- Department of Microbiology & Immunology, The University of Western Ontario, London, Ontario, Canada
- Canadian Centre for Human Microbiome and Probiotics Research, London, Ontario, Canada
| | - Gregor Reid
- Department of Microbiology & Immunology, The University of Western Ontario, London, Ontario, Canada
- Canadian Centre for Human Microbiome and Probiotics Research, London, Ontario, Canada
- Department of Surgery, Schulich School of Medicine, London, Ontario, Canada
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Bee Bread Exhibits Higher Antimicrobial Potential Compared to Bee Pollen. Antibiotics (Basel) 2021; 10:antibiotics10020125. [PMID: 33525690 PMCID: PMC7911093 DOI: 10.3390/antibiotics10020125] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/22/2021] [Accepted: 01/25/2021] [Indexed: 12/11/2022] Open
Abstract
This study aimed at investigation of the antimicrobial potential of ethanolic extracts of bee bread (BB) and bee pollen (BP) and suspensions of these products in MHB (Mueller Hinton Broth). We covered 30 samples of BP and 19 samples of BB harvested in Polish apiaries. Slightly lower activity was observed against Gram-negative bacteria compared to Gram-positive staphylococci. BB extracts exhibited higher inhibitory potential with minimum inhibitory concentration (MIC) values in the range from 2.5 to 10% (v/v) against Staphylococcus aureus ATCC 25923 and ATCC 29213. Most active BB extracts, namely, BB6, BB11 and BB19, effectively inhibited growth of clinical isolates of S. aureus (n = 9), including MRSA (methicillin resistant Staphylococcus aureus) strains (n = 3) at concentrations ranging from 2.5 to 5.0% (v/v). Minimal bactericidal concentration (MBC) values were in the same range of concentrations; however, a shift from 2.5 to 5.0% (v/v) was observed for some products. The most active BP extracts inhibited the growth of reference strains of S. aureus at a concentration of 5% (v/v). Up to the concentration of 20% (v/v) three and seven BP extracts were not able to inhibit the growth of S. aureus ATCC 29213 and S. aureus ATCC 25923 respectively. The growth of staphylococci was also importantly inhibited in suspensions of the products in MHB. No correlation between phenolic content and antimicrobial activity was observed.
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Ye MH, Fan SH, Li XY, Tarequl IM, Yan CX, Wei WH, Yang SM, Zhou B. Microbiota dysbiosis in honeybee ( Apis mellifera L .) larvae infected with brood diseases and foraging bees exposed to agrochemicals. ROYAL SOCIETY OPEN SCIENCE 2021; 8:201805. [PMID: 33614099 PMCID: PMC7890499 DOI: 10.1098/rsos.201805] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/14/2020] [Indexed: 06/01/2023]
Abstract
American foulbrood (AFB) disease and chalkbrood disease (CBD) are important bacterial and fungal diseases, respectively, that affect honeybee broods. Exposure to agrochemicals is an abiotic stressor that potentially weakens honeybee colonies. Gut microflora alterations in adult honeybees associated with these biotic and abiotic factors have been investigated. However, microbial compositions in AFB- and CBD-infected larvae and the profile of whole-body microbiota in foraging bees exposed to agrochemicals have not been fully studied. In this study, bacterial and fungal communities in healthy and diseased (AFB/CBD) honeybee larvae were characterized by amplicon sequencing of bacterial 16S rRNA gene and fungal internal transcribed spacer1 region, respectively. The bacterial and fungal communities in disordered foraging bees poisoned by agrochemicals were analysed. Our results revealed that healthy larvae were significantly enriched in bacterial genera Lactobacillus and Stenotrophomonas and the fungal genera Alternaria and Aspergillus. The enrichment of these microorganisms, which had antagonistic activities against the etiologic agents for AFB and CBD, respectively, may protect larvae from potential infection. In disordered foraging bees, the relative abundance of bacterial genus Gilliamella and fungal species Cystofilobasidium macerans were significantly reduced, which may compromise hosts' capacities in nutrient absorption and immune defence against pathogens. Significantly higher frequency of environmentally derived fungi was observed in disordered foraging bees, which reflected the perturbed microbiota communities of hosts. Results from PICRUSt and FUNGuild analyses revealed significant differences in gene clusters of bacterial communities and fungal function profiles. Overall, results of this study provide references for the composition and function of microbial communities in AFB- and CBD-infected honeybee larvae and foraging bees exposed to agrochemicals.
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Affiliation(s)
- Man-Hong Ye
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, Jiangsu Province, People's Republic of China
| | - Shu-Hang Fan
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, Jiangsu Province, People's Republic of China
| | - Xiao-Yuan Li
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, Jiangsu Province, People's Republic of China
| | - Islam Mohd Tarequl
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, Jiangsu Province, People's Republic of China
| | - Chun-Xiang Yan
- Chunxiang Professional Beekeeping Cooperatives, Yangzhou 225009, Jiangsu Province, People's Republic of China
| | - Wan-Hong Wei
- Joint International Research Laboratory of Agricultural & Agri-Product Safety, Yangzhou University, Yangzhou 225009, Jiangsu Province, People's Republic of China
| | - Sheng-Mei Yang
- Joint International Research Laboratory of Agricultural & Agri-Product Safety, Yangzhou University, Yangzhou 225009, Jiangsu Province, People's Republic of China
| | - Bin Zhou
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, Jiangsu Province, People's Republic of China
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Didaras NA, Karatasou K, Dimitriou TG, Amoutzias GD, Mossialos D. Antimicrobial Activity of Bee-Collected Pollen and Beebread: State of the Art and Future Perspectives. Antibiotics (Basel) 2020; 9:antibiotics9110811. [PMID: 33202560 PMCID: PMC7697837 DOI: 10.3390/antibiotics9110811] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/06/2020] [Accepted: 11/12/2020] [Indexed: 01/06/2023] Open
Abstract
Bee-collected pollen (BCP) is a well-known functional food. Honey bees process the collected pollen and store it in the hive, inside the comb cells. The processed pollen is called bee- bread or ambrosia and it is the main source of proteins, lipids, vitamins, macro-and micro-elements in honey bee nutrition. During storage, beebread undergoes solid state fermentation which preserves it and increases the bioavailability of nutrients. Research on beebread has been rather limited until now. In recent years, there is an increasing interest regarding the antimicrobial properties of BCP and beebread, due to emerging antimicrobial resistance by pathogens. Both BCP and beebread exhibit antimicrobial properties against diverse pathogens, like bacteria and fungi. As is the case with other bee products, lack of antimicrobial resistance might be attributed to the synergy of more than one antimicrobial compounds within BCP and beebread. Furthermore, BCP and bee bread exert targeted activity against pathogens and affect the host microbiome in a prebiotic manner. This review aims to present up to date research findings regarding these aspects as well as to discuss current challenges and future perspectives in the field.
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Affiliation(s)
- Nikos Asoutis Didaras
- Microbial Biotechnology-Molecular Bacteriology-Virology Laboratory, Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Volos, Greece; (N.A.D.); (T.G.D.)
| | - Katerina Karatasou
- Apicultural Centre of Larissa, Federation of Greek Beekeepers Associations, 41500 Larissa, Greece;
| | - Tilemachos G Dimitriou
- Microbial Biotechnology-Molecular Bacteriology-Virology Laboratory, Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Volos, Greece; (N.A.D.); (T.G.D.)
| | - Grigoris D. Amoutzias
- Bioinformatics Laboratory, Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Volos, Greece;
| | - Dimitris Mossialos
- Microbial Biotechnology-Molecular Bacteriology-Virology Laboratory, Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Volos, Greece; (N.A.D.); (T.G.D.)
- Correspondence: ; Tel.: +30-241-056-5270
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Kafantaris I, Amoutzias GD, Mossialos D. Foodomics in bee product research: a systematic literature review. Eur Food Res Technol 2020. [DOI: 10.1007/s00217-020-03634-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Significance of Apoidea as Main Pollinators. Ecological and Economic Impact and Implications for Human Nutrition. DIVERSITY 2020. [DOI: 10.3390/d12070280] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Wild and managed bees provide pollination services to crops and wild plants, as well as a variety of other services beneficial to humans. Honey bees are the most economically valuable pollinator worldwide. It has been calculated that 9.5% of the total economic value of agricultural production comes from insect pollination, thus amounting to just under USD 200 billion globally. More than 100 important crops depend on pollination by honey bees. The latter pollinate not only a wide number of commercial crops but also many wild plants, some of which are threatened by extinction and constitute a valuable genetic resource. Moreover, as pollinators, honey bees play a significant role in every aspect of the ecosystem by facilitating the growth of trees, flowers, and other plants that serve as food and shelter for many large and small creatures. In this paper, we describe how the reduction in honey bee populations affects various economic sectors, as well as human health.
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