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Zhao L, Zhang S, Xiao R, Zhang C, Lyu Z, Zhang F. Diversity and Functionality of Bacteria Associated with Different Tissues of Spider Heteropoda venatoria Revealed through Integration of High-Throughput Sequencing and Culturomics Approaches. MICROBIAL ECOLOGY 2024; 87:67. [PMID: 38703220 PMCID: PMC11069485 DOI: 10.1007/s00248-024-02383-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 04/19/2024] [Indexed: 05/06/2024]
Abstract
Spiders host a diverse range of bacteria in their guts and other tissues, which have been found to play a significant role in their fitness. This study aimed to investigate the community diversity and functional characteristics of spider-associated bacteria in four tissues of Heteropoda venatoria using HTS of the 16S rRNA gene and culturomics technologies, as well as the functional verification of the isolated strains. The results of HTS showed that the spider-associated bacteria in different tissues belonged to 34 phyla, 72 classes, 170 orders, 277 families, and 458 genera. Bacillus was found to be the most abundant bacteria in the venom gland, silk gland, and ovary, while Stenotrophomonas, Acinetobacter, and Sphingomonas were dominant in the gut microbiota. Based on the amplicon sequencing results, 21 distinct cultivation conditions were developed using culturomics to isolate bacteria from the ovary, gut, venom gland, and silk gland. A total of 119 bacterial strains, representing 4 phyla and 25 genera, with Bacillus and Serratia as the dominant genera, were isolated. Five strains exhibited high efficiency in degrading pesticides in the in vitro experiments. Out of the 119 isolates, 28 exhibited antibacterial activity against at least one of the tested bacterial strains, including the pathogenic bacteria Staphylococcus aureus, Acinetobacter baumanii, and Enterococcus faecalis. The study also identified three strains, GL312, PL211, and PL316, which exhibited significant cytotoxicity against MGC-803. The crude extract from the fermentation broth of strain PL316 was found to effectively induce apoptosis in MGC-803 cells. Overall, this study offers a comprehensive understanding of the bacterial community structure associated with H. venatoria. It also provides valuable insights into discovering novel antitumor natural products for gastric cancer and xenobiotic-degrading bacteria of spiders.
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Affiliation(s)
- Likun Zhao
- College of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding, 071002, People's Republic of China
- The Key Laboratory of Microbial Diversity Research and Application of Hebei Province, Baoding, 071002, People's Republic of China
| | - Shanfeng Zhang
- College of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding, 071002, People's Republic of China
| | - Ruoyi Xiao
- College of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding, 071002, People's Republic of China
| | - Chao Zhang
- College of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding, 071002, People's Republic of China
| | - Zhitang Lyu
- College of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding, 071002, People's Republic of China.
- The Key Laboratory of Microbial Diversity Research and Application of Hebei Province, Baoding, 071002, People's Republic of China.
| | - Feng Zhang
- College of Life Sciences, Institute of Life Sciences and Green Development, Hebei University, Baoding, 071002, People's Republic of China.
- The Key Laboratory of Zoological Systematics and Application of Hebei Province, Baoding, 071002, People's Republic of China.
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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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3
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Abdulsalam RA, Ijabadeniyi OA, Cason ED, Sabiu S. Characterization of Microbial Diversity of Two Tomato Cultivars through Targeted Next-Generation Sequencing 16S rRNA and ITS Techniques. Microorganisms 2023; 11:2337. [PMID: 37764180 PMCID: PMC10534366 DOI: 10.3390/microorganisms11092337] [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: 08/09/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
Even though the nutritional and economic values of Solanum lycopersicum (tomato) are substantially impacted by microbial spoilage, the available data on its microbial community, particularly during spoilage, are limited and have primarily been characterized using conventional culture-dependent methods. This study employed a targeted high-throughput next-generation sequencing method to longitudinally characterize the microbial diversity of two South African tomato cultivars (jam and round) at varied storage intervals (1, 6, and 12 days). Throughout the storage period, the bacterial communities of the two cultivars were more diverse than the fungal communities. The microbial diversity of both bacteria and fungi was greater and comparable between the cultivars on day 1, but becomes distinct as the storage period increases, with round tomatoes being more diverse than jam tomato, though, on day 12, jam tomato develops greater diversity than round tomato. Overall, the most abundant phyla (though Proteobacteria was most dominant) were Proteobacteria, Firmicutes, and Bacteriodota in the bacterial communities, while Ascomycota and Basidiomycota formed most fungal communities with Ascomycota being dominant. At the genus level, Pantoea and Klebsiella (bacteria), Hanseniaspora, Stemphylium, and Alternaria (fungi) were prevalent. Taken together, this study casts light on a broad microbial diversity profile thus, confirms the cultivars' diversity and abundance differences.
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Affiliation(s)
- Rukayat Abiola Abdulsalam
- Department of Biotechnology and Food Science, Durban University of Technology, Durban 4000, South Africa
| | | | - Errol D. Cason
- Department of Animal Science, University of the Free State, Bloemfontein 9300, South Africa
| | - Saheed Sabiu
- Department of Biotechnology and Food Science, Durban University of Technology, Durban 4000, South Africa
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Tejerina MR, Cabana MJ, Cruz NM, Enríquez PA, Benitez-Ahrendts MR, Fonseca MI. Fungal microbiota isolated from native stingless bee species inhibited pathogens of Apis mellifera. Fungal Biol 2023; 127:1267-1275. [PMID: 37821148 DOI: 10.1016/j.funbio.2023.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 07/06/2023] [Accepted: 07/10/2023] [Indexed: 10/13/2023]
Abstract
Social bees can establish interactions with microorganisms to keep their colonies free of pathogens and parasites by developing different protection strategies. We explored the fungal microbiota isolated from three species of stingless bees, Tetragonisca fiebrigi, Plebeias sp., and Scaptotrigona jujuyensis, and its potential ability to suppress pathogenic microorganisms of A. mellifera, namely Paenibacillus larvae, Ascosphaera apis and Aspergillus flavus, which were tested and evaluated. Six filamentous fungal strains, Trametes hirsuta, Alternaria alternata, Curvularia spicifera, Skeletocutis sp., Alternaria tenuissima, Monascus spp., as well as the yeast Wickerhamomyces anomalus, were selected for trials and isolated from the heads of foraging bees. The fungal strains were identified by macroscopic and microscopic taxonomic characteristics and by sequencing of the ITS1-5.8S-ITS2 region of ribosomal DNA. All fungal strains inhibited these pathogens of A. mellifera. We also evaluated the effect of the secondary metabolites extracted with and without ethanol. Both metabolites showed antimicrobial properties, and our results suggest that fungi isolated from stingless bees produce bioactive compounds with antibacterial and antifungal effects that could be used to treat Apis mellifera colony diseases and maintain colony health.
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Affiliation(s)
- Marcos Raúl Tejerina
- Cátedra de Microbiología, Sanidad apícola y Meliponícola, Facultad de Ciencias Agrarias, Universidad Nacional de Jujuy, Alberdi 47, 4600, Jujuy, Argentina; Instituto de Ecorregiones Andinas (INECOA)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Avenida Bolivia 1239, Jujuy, Argentina.
| | - María José Cabana
- Cátedra de Microbiología, Sanidad apícola y Meliponícola, Facultad de Ciencias Agrarias, Universidad Nacional de Jujuy, Alberdi 47, 4600, Jujuy, Argentina
| | - Nancy Marina Cruz
- Cátedra de Microbiología, Sanidad apícola y Meliponícola, Facultad de Ciencias Agrarias, Universidad Nacional de Jujuy, Alberdi 47, 4600, Jujuy, Argentina
| | - Pablo Adrián Enríquez
- Cátedra de Microbiología, Sanidad apícola y Meliponícola, Facultad de Ciencias Agrarias, Universidad Nacional de Jujuy, Alberdi 47, 4600, Jujuy, Argentina
| | - Marcelo Rafael Benitez-Ahrendts
- Cátedra de Microbiología, Sanidad apícola y Meliponícola, Facultad de Ciencias Agrarias, Universidad Nacional de Jujuy, Alberdi 47, 4600, Jujuy, Argentina; Instituto de Ecorregiones Andinas (INECOA)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Avenida Bolivia 1239, Jujuy, Argentina
| | - María Isabel Fonseca
- Universidad Nacional de Misiones, Facultad de Ciencias Exactas, Químicas y Naturales. Instituto de Biotecnología "Dra. María Ebe Reca" (INBIOMIS), Laboratorio de Biotecnología Molecular, Misiones, Argentina; CONICET, Buenos Aires, Argentina
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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: 14] [Impact Index Per Article: 14.0] [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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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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7
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Gaggìa F, Jakobsen RR, Alberoni D, Baffoni L, Cutajar S, Mifsud D, Nielsen DS, Di Gioia D. Environment or genetic isolation? An atypical intestinal microbiota in the Maltese honey bee Apis mellifera spp. ruttneri. Front Microbiol 2023; 14:1127717. [PMID: 36910174 PMCID: PMC9995969 DOI: 10.3389/fmicb.2023.1127717] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 02/06/2023] [Indexed: 02/25/2023] Open
Abstract
Introduction Apis mellifera evolved mainly in African, Asian, and European continents over thousands of years, leading to the selection of a considerable number of honey bees subspecies that have adapted to various environments such as hot semi-desert zones and cold temperate zones. With the evolution of honey bee subspecies, it is possible that environmental conditions, food sources, and microbial communities typical of the colonized areas have shaped the honey bee gut microbiota. Methods In this study the microbiota of two distinct lineages (mitochondrial haplotypes) of bees Apis mellifera ruttneri (lineage A) and Apis mellifera ligustica and carnica (both lineage C) were compared. Honey bee guts were collected in a dry period in the respective breeding areas (the island of Malta and the regions of Emilia-Romagna and South Tyrol in Italy). Microbial DNA from the honey bee gut was extracted and amplified for the V3-V4 regions of the 16S rRNA gene for bacteria and for ITS2 for fungi. Results The analyses carried out show that the Maltese lineage A honey bees have a distinctive microbiota when compared to Italian lineage C honey bees, with the most abundant genera being Bartonellaceae and Lactobacillaceae, respectively. Lactobacillaceae in Maltese Lineage A honey bees consist mainly of Apilactobacillus instead of Lactobacillus and Bombilactobacillus in the lineage C. Lineage A honey bee gut microbiota also harbors higher proportions of Arsenophonus, Bombella, Commensalibacter, and Pseudomonas when compared to lineage C. Discussion The environment seems to be the main driver in the acquisition of these marked differences in the gut microbiota. However, the influence of other factors such as host genetics, seasonality or geography may still play a significant role in the microbiome shaping, in synergy with the environmental aspects.
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Affiliation(s)
- Francesca Gaggìa
- Department of Agricultural and Food Sciences, University of Bologna, Bologna, Italy
| | - Rasmus Riemer Jakobsen
- Section of Microbiology and Fermentation, Department of Food Science, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Daniele Alberoni
- Department of Agricultural and Food Sciences, University of Bologna, Bologna, Italy
| | - Loredana Baffoni
- Department of Agricultural and Food Sciences, University of Bologna, Bologna, Italy
| | - Simone Cutajar
- Institute of Earth Systems, L-Università tà Malta, Msida, Malta
| | - David Mifsud
- Institute of Earth Systems, L-Università tà Malta, Msida, Malta
| | - Dennis Sandris Nielsen
- Section of Microbiology and Fermentation, Department of Food Science, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Diana Di Gioia
- Department of Agricultural and Food Sciences, University of Bologna, Bologna, Italy
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8
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Cui P, Kong K, Yao Y, Huang Z, Shi S, Liu P, Huang Y, Abbas N, Yu L, Zhang Y. Correction: Community composition, bacterial symbionts, antibacterial and antioxidant activities of honeybee-associated fungi. BMC Microbiol 2022; 22:315. [PMID: 36544096 PMCID: PMC9773476 DOI: 10.1186/s12866-022-02740-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Pu Cui
- grid.411389.60000 0004 1760 4804School of Life Sciences, Anhui Agricultural University, Hefei, 230036 China
| | - Kun Kong
- grid.411389.60000 0004 1760 4804School of Life Sciences, Anhui Agricultural University, Hefei, 230036 China
| | - Yong Yao
- grid.411389.60000 0004 1760 4804School of Life Sciences, Anhui Agricultural University, Hefei, 230036 China
| | - Zhongdi Huang
- grid.411389.60000 0004 1760 4804School of Life Sciences, Anhui Agricultural University, Hefei, 230036 China
| | - Shuping Shi
- grid.411389.60000 0004 1760 4804School of Life Sciences, Anhui Agricultural University, Hefei, 230036 China
| | - Peng Liu
- grid.411389.60000 0004 1760 4804School of Plant Protection, Anhui Agricultural University, Hefei, 230036 China
| | - Yechen Huang
- grid.411389.60000 0004 1760 4804School of Life Sciences, Anhui Agricultural University, Hefei, 230036 China
| | - Naeem Abbas
- grid.411389.60000 0004 1760 4804School of Life Sciences, Anhui Agricultural University, Hefei, 230036 China
| | - Linsheng Yu
- grid.411389.60000 0004 1760 4804School of Plant Protection, Anhui Agricultural University, Hefei, 230036 China
| | - Yinglao Zhang
- grid.411389.60000 0004 1760 4804School of Life Sciences, Anhui Agricultural University, Hefei, 230036 China ,grid.413458.f0000 0000 9330 9891Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014 China
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9
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Cui P, Wu H, Jiang T, Tao J, Zhu Z, Liu P, Yu L, Zhang Y. Diversity and antibacterial potential of the Actinobacteria associated with Apis mellifera ligustica. Front Microbiol 2022; 13:1056176. [PMID: 36590398 PMCID: PMC9800615 DOI: 10.3389/fmicb.2022.1056176] [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: 09/28/2022] [Accepted: 11/29/2022] [Indexed: 12/23/2022] Open
Abstract
Insect-associated Actinobacteria are a potentially rich source of novel natural products with antibacterial activity. Here, the community composition of Actinobacteria associated with Apis mellifera ligustica was investigated by integrated culture-dependent and independent methods. A total of 61 strains of Streptomyces genera were isolated from the honeycomb, larva, and different anatomical parts of the honeybee's body using the culture-dependent method. Amplicon sequencing analyses revealed that the actinobacterial communities were dominated by the family of Bifidobacteriaceae and Microbacteriaceae in the honeybee gut, and Nocardiaceae and Pseudonocardiaceae in the honeycomb, whereas only Streptomyces genera were isolated by the culture-dependent method. Culture-independent analyses showed more diverse actinobacterial communities than those of culture-dependent methods. The antibacterial bioassay showed that most crude extracts of representative isolates exhibited antibacterial activities. Among them, the crude extract of Streptomyces sp. FCF01 showed the best antibacterial activities against Staphylococcus aureus, Micrococcus tetragenus, and Pseudomonas syringae pv. actinidiae (Psa) with the disc diameter of inhibition zone diameter (IZD) of 23.00, 15.00, and 13.33 mm, respectively. Chemical analysis of Streptomyces sp. FCF01 led to the isolation of three secondary metabolites, including mayamycin (1), mayamycin B (2), and N-(2-Hydroxyphenyl) acetamide (3). Among them, compound 1 displayed strong antibacterial activity against S. aureus, M. tetragenus, and Psa with minimum inhibitory concentrations (MIC) values of 6.25, 12.5, and 6.25 μg/ml, respectively. In addition, two novel derivative compounds 1a and 1b were synthesized by acetylation of compound 1. Both compounds 1a and 1b displayed similar antibacterial activities with those of metabolite 1. These results indicated that Streptomyces species associated with honeybees had great potential in finding antibiotics.
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Affiliation(s)
- Pu Cui
- School of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Haoyang Wu
- School of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Taoshan Jiang
- School of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Jian Tao
- School of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Zhiwei Zhu
- School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Peng Liu
- School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Linsheng Yu
- School of Plant Protection, Anhui Agricultural University, Hefei, China
| | - Yinglao Zhang
- School of Life Sciences, Anhui Agricultural University, Hefei, China,*Correspondence: Yinglao Zhang,
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10
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Micro"bee"ota: Honey Bee Normal Microbiota as a Part of Superorganism. Microorganisms 2022; 10:microorganisms10122359. [PMID: 36557612 PMCID: PMC9785237 DOI: 10.3390/microorganisms10122359] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 11/17/2022] [Accepted: 11/28/2022] [Indexed: 12/02/2022] Open
Abstract
Honey bees are model organisms for microbiota research. Gut microbiomes are very interesting for surveys due to their simple structure and relationship with hive production. Long-term studies reveal the gut microbiota patterns of various hive members, as well as the functions, sources, and interactions of the majority of its bacteria. But the fungal non-pathogenic part of gut microbiota is almost unexplored, likewise some other related microbiota. Honey bees, as superorganisms, interact with their own microorganisms, the microbial communities of food stores, hive surfaces, and other environments. Understanding microbiota diversity, its transition ways, and hive niche colonization control are necessary for understanding any separate microbiota niche because of their interplay. The long coevolution of bees with the microorganisms populating these niches makes these systems co-dependent, integrated, and stable. Interaction with the environment, hive, and other bees determines caste lifestyle as well as individual microbiota. In this article, we bring together studies on the microbiota of the western honey bee. We show a possible relationship between caste determination and microbiota composition. And what is primary: caste differentiation or microbiota composition?
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