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Koh YC, Yao CH, Lee PS, Nagabhushanam K, Ho CT, Pan MH. Hepatoprotective effect of dietary pterostilbene against high-fat-diet-induced lipid accumulation exacerbated by chronic jet lag via SIRT1 and SIRT3 activation. Phytother Res 2024. [PMID: 38899498 DOI: 10.1002/ptr.8262] [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: 01/10/2024] [Revised: 05/19/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024]
Abstract
Hepatic lipid metabolism is modulated by the circadian rhythm; therefore, circadian disruption may promote obesity and hepatic lipid accumulation. This study aims to investigate dietary pterostilbene (PSB) 's protective effect against high-fat-diet (HFD)-induced lipid accumulation exacerbated by chronic jet lag and the potential role of gut microbiota therein. Mice were treated with a HFD and chronic jet lag for 14 weeks. The experimental group was supplemented with 0.25% (w/w) PSB in its diet to evaluate whether PSB had a beneficial effect. Our study found that chronic jet lag exacerbates HFD-induced obesity and hepatic lipid accumulation, but these adverse effects were significantly mitigated by PSB supplementation. Specifically, PSB promoted hepatic lipolysis and β-oxidation by upregulating SIRT1 expression, which indirectly reduced oxidative stress caused by lipid accumulation. Additionally, the PSB-induced elevation of SIRT1 and SIRT3 expression helped prevent excessive autophagy and mitochondrial fission by activating Nrf2-mediated antioxidant enzymes. The result was evidenced by the use of SIRT1 and SIRT3 inhibitors in in vitro studies, which demonstrated that activation of SIRT1 and SIRT3 by PSB is crucial for the translocation of PGC-1α and Nrf2, respectively. Moreover, the analysis of gut microbiota suggested that PSB's beneficial effects were partly due to its positive modulation of gut microbial composition and functionality. The findings of this study suggest the potential of dietary PSB as a candidate to improve hepatic lipid metabolism via several mechanisms. It may be developed as a treatment adjuvant in the future.
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Affiliation(s)
- Yen-Chun Koh
- Institute of Food Sciences and Technology, National Taiwan University, Taipei, Taiwan
| | - Ching-Hui Yao
- Institute of Food Sciences and Technology, National Taiwan University, Taipei, Taiwan
| | - Pei-Sheng Lee
- Institute of Food Sciences and Technology, National Taiwan University, Taipei, Taiwan
| | | | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, New Jersey, USA
| | - Min-Hsiung Pan
- Institute of Food Sciences and Technology, National Taiwan University, Taipei, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung City, Taiwan
- Department of Health and Nutrition Biotechnology, Asia University, Taichung City, Taiwan
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2
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Herlemann DPR, Tammert H, Kivistik C, Käiro K, Kisand V. Distinct biogeographical patterns in snail gastrointestinal tract bacterial communities compared with sediment and water. Microbiologyopen 2024; 13:e13. [PMID: 38825966 PMCID: PMC11144953 DOI: 10.1002/mbo3.1413] [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: 01/30/2024] [Revised: 04/16/2024] [Accepted: 04/30/2024] [Indexed: 06/04/2024] Open
Abstract
The factors that influence the distribution of bacterial community composition are not well understood. The role of geographical patterns, which suggest limited dispersal, is still a topic of debate. Bacteria associated with hosts face unique dispersal challenges as they often rely on their hosts, which provide specific environments for their symbionts. In this study, we examined the effect of biogeographic distances on the bacterial diversity and composition of bacterial communities in the gastrointestinal tract of Ampullaceana balthica. We compared the effects on the host-associated bacterial community to those on bacterial communities in water and sediment. This comparison was made using 16S ribosomal RNA gene sequencing. We found that the bacterial communities we sampled in Estonia, Denmark, and Northern Germany varied between water, sediment, and the gastrointestinal tract. They also varied between countries within each substrate. This indicates that the type of substrate is a dominant factor in determining bacterial community composition. We separately analyzed the turnover rates of water, sediment, and gastrointestinal bacterial communities over increasing geographic distances. We observed that the turnover rate was lower for gastrointestinal bacterial communities compared to water bacterial communities. This implies that the composition of gastrointestinal bacteria remains relatively stable over distances, while water bacterial communities exhibit greater variability. However, the gastrointestinal tract had the lowest percentage of country-specific amplicon sequence variants, suggesting bacterial colonization from local bacterial communities. Since the overlap between the water and gastrointestinal tract was highest, it appears that the gastrointestinal bacterial community is colonized by the water bacterial community. Our study confirmed that biogeographical patterns in host-associated communities differ from those in water and sediment bacterial communities. These host-associated communities consist of numerous facultative symbionts derived from the water bacterial community.
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Affiliation(s)
- Daniel P. R. Herlemann
- Centre for Limnology, Institute of Agricultural and Environmental SciencesEstonian University of Life SciencesTartu CountyEstonia
- Department of Biological OceanographyLeibniz Institute for Baltic Sea Research Warnemünde (IOW)RostockGermany
| | - Helen Tammert
- Centre for Limnology, Institute of Agricultural and Environmental SciencesEstonian University of Life SciencesTartu CountyEstonia
- Institute of TechnologyUniversity of TartuTartuEstonia
| | - Carmen Kivistik
- Centre for Limnology, Institute of Agricultural and Environmental SciencesEstonian University of Life SciencesTartu CountyEstonia
| | - Kairi Käiro
- Centre for Limnology, Institute of Agricultural and Environmental SciencesEstonian University of Life SciencesTartu CountyEstonia
| | - Veljo Kisand
- Centre for Limnology, Institute of Agricultural and Environmental SciencesEstonian University of Life SciencesTartu CountyEstonia
- Institute of TechnologyUniversity of TartuTartuEstonia
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Sun Y, Hao Y, Wang S, Chen X. Changes in the bacterial communities of Harmonia axyridis (Coleoptera: Coccinellidae) in response to long-term cold storage and progressive loss of egg viability in cold-stored beetles. Front Microbiol 2024; 15:1276668. [PMID: 38533331 PMCID: PMC10964723 DOI: 10.3389/fmicb.2024.1276668] [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: 08/12/2023] [Accepted: 02/21/2024] [Indexed: 03/28/2024] Open
Abstract
Bacteria have a profound influence on life history and reproduction of numerous insects, while the associations between hosts and bacteria are substantially influenced by environmental pressures. Cold storage is crucial for extending the shelf life of insects used as tools for biological control, but mostly causes detrimental effects. In this study, we observed a great decrease in egg hatch rate of cold-stored Harmonia axyridis during the later oviposition periods. Furthermore, most eggs produced by their F1 offspring exhibited complete loss of hatchability. We hypothesized that long-term exposure to cold may greatly alter the bacterial community within the reproductive tracts of H. axyridis, which may be an important factor contributing to the loss of egg viability. Through sequencing of the 16S rRNA gene, we discovered considerable changes in the bacterial structure within the reproductive tracts of female cold-stored beetles (LCS_F) compared to non-stored beetles (Control_F), with a notable increase in unclassified_f_Enterobacteriaceae in LCS_F. Furthermore, in accordance with the change of egg hatchability, we observed a slight variation in the microbial community of eggs produced by cold-stored beetles in early (Egg_E) and later (Egg_L) oviposition periods as well as in eggs produced by their F1 offspring (Egg_F1). Functional predictions of the microbial communities revealed a significant decrease in the relative abundance of substance dependence pathway in LCS_F. Moreover, this pathway exhibited relatively lower abundance levels in both Egg_L and Egg_F1 compared to Egg_E. These findings validate that long-term cold storage can greatly modify the bacterial composition within H. axyridis, thereby expanding our understanding of the intricate bacteria-insect host interactions.
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Affiliation(s)
- Yuanxing Sun
- Biocontrol Engineering Laboratory of Crop Diseases and Pests of Gansu Province, College of Plant Protection, Gansu Agricultural University, Lanzhou, China
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Gafarova E, Kuracji D, Sogomonyan K, Gorokhov I, Polev D, Zubova E, Golikova E, Granovitch A, Maltseva A. Gut Bacteriomes and Ecological Niche Divergence: An Example of Two Cryptic Gastropod Species. BIOLOGY 2023; 12:1521. [PMID: 38132347 PMCID: PMC10740740 DOI: 10.3390/biology12121521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/04/2023] [Accepted: 12/08/2023] [Indexed: 12/23/2023]
Abstract
Symbiotic microorganisms may provide their hosts with abilities critical to their occupation of microhabitats. Gut (intestinal) bacterial communities aid animals to digest substrates that are either innutritious or toxic, as well as support their development and physiology. The role of microbial communities associated with sibling species in the hosts' adaptation remains largely unexplored. In this study, we examined the composition and plasticity of the bacteriomes in two sibling intertidal gastropod species, Littorina fabalis and L. obtusata, which are sympatric but differ in microhabitats. We applied 16S rRNA gene metabarcoding and shotgun sequencing to describe associated microbial communities and their spatial and temporal variation. A significant drop in the intestinal bacteriome diversity was revealed during the cold season, which may reflect temperature-related metabolic shifts and changes in snail behavior. Importantly, there were significant interspecies differences in the gut bacteriome composition in summer but not in autumn. The genera Vibrio, Aliivibrio, Moritella and Planktotalea were found to be predominantly associated with L. fabalis, while Granulosicoccus, Octadecabacter, Colwellia, Pseudomonas, Pseudoalteromonas and Maribacter were found to be mostly associated with L. obtusata. Based on these preferential associations, we analyzed the metabolic pathways' enrichment. We hypothesized that the L. obtusata gut bacteriome contributes to decomposing algae and detoxifying polyphenols produced by fucoids. Thus, differences in the sets of associated bacteria may equip their closely phylogenetically related hosts with a unique ability to occupy specific micro-niches.
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Affiliation(s)
- Elizaveta Gafarova
- Department of Invertebrate Zoology, St. Petersburg State University, 199034 St. Petersburg, Russia; (D.K.); (E.Z.); (A.G.)
| | - Dmitrii Kuracji
- Department of Invertebrate Zoology, St. Petersburg State University, 199034 St. Petersburg, Russia; (D.K.); (E.Z.); (A.G.)
| | - Karina Sogomonyan
- Center for Bioinformatics and Algorithmic Biotechnology, St. Petersburg State University, 199034 St. Petersburg, Russia;
| | - Ivan Gorokhov
- Department of Invertebrate Zoology, St. Petersburg State University, 199034 St. Petersburg, Russia; (D.K.); (E.Z.); (A.G.)
| | - Dmitrii Polev
- Department of Epidemiology, St. Petersburg Pasteur Institute, Mira Street 14, 197101 St. Petersburg, Russia;
| | - Ekaterina Zubova
- Department of Invertebrate Zoology, St. Petersburg State University, 199034 St. Petersburg, Russia; (D.K.); (E.Z.); (A.G.)
| | - Elena Golikova
- Department of Invertebrate Zoology, St. Petersburg State University, 199034 St. Petersburg, Russia; (D.K.); (E.Z.); (A.G.)
| | - Andrey Granovitch
- Department of Invertebrate Zoology, St. Petersburg State University, 199034 St. Petersburg, Russia; (D.K.); (E.Z.); (A.G.)
| | - Arina Maltseva
- Department of Invertebrate Zoology, St. Petersburg State University, 199034 St. Petersburg, Russia; (D.K.); (E.Z.); (A.G.)
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Li P, Hong J, Yuan Z, Huang Y, Wu M, Ding T, Wu Z, Sun X, Lin D. Gut microbiota in parasite-transmitting gastropods. Infect Dis Poverty 2023; 12:105. [PMID: 38001502 PMCID: PMC10668521 DOI: 10.1186/s40249-023-01159-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 11/13/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND Gastropoda, the largest class within the phylum Mollusca, houses diverse gut microbiota, and some gastropods serve as intermediate hosts for parasites. Studies have revealed that gut bacteria in gastropods are associated with various biological aspects, such as growth, immunity and host-parasite interactions. Here, we summarize our current knowledge of gastropod gut microbiomes and highlight future research priorities and perspectives. METHODS A literature search was undertaken using PubMed, Web of Science and CNKI for the articles on the gut microbiota of gastropods until December 31, 2022. We retrieved a total of 166 articles and identified 73 eligible articles for inclusion in this review based on the inclusion and exclusion criteria. RESULTS Our analysis encompassed freshwater, seawater and land snails, with a specific focus on parasite-transmitting gastropods. We found that most studies on gastropod gut microbiota have primarily utilized 16S rRNA gene sequencing to analyze microbial composition, rather than employing metagenomic, metatranscriptomic, or metabolomic approaches. This comprehensive review provided an overview of the parasites carried by snail species in the context of gut microbiota studies. We presented the gut microbial trends, a comprehensive summary of the diversity and composition, influencing factors, and potential functions of gastropod gut microbiota. Additionally, we discussed the potential applications, research gaps and future perspectives of gut microbiomes in parasite-transmitting gastropods. Furthermore, several strategies for enhancing our comprehension of gut microbiomes in snails were also discussed. CONCLUSIONS This review comprehensively summarizes the current knowledge on the composition, potential function, influencing factors, potential applications, limitations, and challenges of gut microbiomes in gastropods, with a specific emphasis on parasite-transmitting gastropods. These findings provide important insights for future studies aiming to understand the potential role of gastropod gut microbiota in controlling snail populations and snail-borne diseases.
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Affiliation(s)
- Peipei Li
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China
- Chinese Atomic Energy Agency Center of Excellence on Nuclear Technology Applications for Insect Control, Provincial Engineering Technology Research Center for Diseases-Vectors Control, Sun Yat-Sen University, Guangzhou, China
| | - Jinni Hong
- Department of Traditional Chinese Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China
| | - Zhanhong Yuan
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China
| | - Yun Huang
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China
| | - Mingrou Wu
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China
| | - Tao Ding
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China
| | - Zhongdao Wu
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China.
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China.
- Chinese Atomic Energy Agency Center of Excellence on Nuclear Technology Applications for Insect Control, Provincial Engineering Technology Research Center for Diseases-Vectors Control, Sun Yat-Sen University, Guangzhou, China.
| | - Xi Sun
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China.
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China.
| | - Datao Lin
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China.
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China.
- Chinese Atomic Energy Agency Center of Excellence on Nuclear Technology Applications for Insect Control, Provincial Engineering Technology Research Center for Diseases-Vectors Control, Sun Yat-Sen University, Guangzhou, China.
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6
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Merlin BL, Moraes GJ, Cônsoli FL. The Microbiota of a Mite Prey-Predator System on Different Host Plants Are Characterized by Dysbiosis and Potential Functional Redundancy. MICROBIAL ECOLOGY 2023; 85:1590-1607. [PMID: 35543735 DOI: 10.1007/s00248-022-02032-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 05/02/2022] [Indexed: 05/10/2023]
Abstract
Microbiota has diverse roles in the life cycles of their hosts, affecting their growth, development, behavior, and reproduction. Changes in physiological conditions of the host can also impact the assemblage of host-associated microorganisms. However, little is known of the effects of host plant-prey-predatory mite interactions on mite microbiota. We compared the microbial communities of eggs and adult females of the two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), and of adult females of the predatory mite Neoseiulus californicus (McGregor) (Acari: Phytoseiidae) on four different host plants (cotton, maize, pinto bean, and tomato) by metabarcoding sequencing of the V3-V4 region of the 16S ribosomal RNA gene (16S rRNA), using the Illumina MiSeq platform. Only the egg microbiota of T. urticae was affected by the host plant. The microbiota of the predatory mite N. californicus was very different from that of its prey, and the predator microbiota was unaffected by the different host plant-prey systems tested. Only the microbiota of the eggs of T. urticae carried Serratia as a high fidelity-biomarker, but their low abundance in T. urticae adult females suggests that the association between Serratia and T. urticae is accidental. Biomarker bacteria were also detected in the microbiota of adult females of T. urticae and N. californicus, with different biomarkers in each host plant species. The microbiota associated with eggs and adult females of T. urticae and adult females of N. californicus differed in their functional potential contributions to the host mite.
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Affiliation(s)
- Bruna Laís Merlin
- Department of Entomology and Acarology, College of Agriculture Luiz de Queiroz, University of São Paulo, Piracicaba, SP, Brazil.
| | - Gilberto J Moraes
- Department of Entomology and Acarology, College of Agriculture Luiz de Queiroz, University of São Paulo, Piracicaba, SP, Brazil
- CNPq, Federal District, Brazil
| | - Fernando L Cônsoli
- Department of Entomology and Acarology, College of Agriculture Luiz de Queiroz, University of São Paulo, Piracicaba, SP, Brazil
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Jiang XR, Dai YY, Wang YR, Guo K, Du Y, Gao JF, Lin LH, Li P, Li H, Ji X, Qu YF. Dietary and Sexual Correlates of Gut Microbiota in the Japanese Gecko, Gekko japonicus (Schlegel, 1836). Animals (Basel) 2023; 13:ani13081365. [PMID: 37106928 PMCID: PMC10134999 DOI: 10.3390/ani13081365] [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: 03/01/2023] [Revised: 04/06/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Numerous studies have demonstrated that multiple intrinsic and extrinsic factors shape the structure and composition of gut microbiota in a host. The disorder of the gut microbiota may trigger various host diseases. Here, we collected fecal samples from wild-caught Japanese geckos (Gekko japonicus) and captive conspecifics fed with mealworms (mealworm-fed geckos) and fruit flies (fly-fed geckos), aiming to examine the dietary and sexual correlates of the gut microbiota. We used 16S rRNA gene sequencing technology to determine the composition of the gut microbiota. The dominant phyla with a mean relative abundance higher than 10% were Verrucomicrobiota, Bacteroidota, and Firmicutes. Gut microbial community richness and diversity were higher in mealworm-fed geckos than in wild geckos. Neither community evenness nor beta diversity of gut microbiota differed among wild, mealworm-fed, and fly-fed geckos. The beta rather than alpha diversity of gut microbiota was sex dependent. Based on the relative abundance of gut bacteria and their gene functions, we concluded that gut microbiota contributed more significantly to the host's metabolic and immune functions. A higher diversity of gut microbiota in mealworm-fed geckos could result from higher chitin content in insects of the order Coleoptera. This study not only provides basic information about the gut microbiota of G. japonicus but also shows that gut microbiota correlates with dietary habits and sex in the species.
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Affiliation(s)
- Xin-Ru Jiang
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Ying-Yu Dai
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Yu-Rong Wang
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Kun Guo
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, China
| | - Yu Du
- Hainan Key Laboratory of Herpetological Research, College of Fisheries and Life Science, Hainan Tropical Ocean University, Sanya 572022, China
| | - Jian-Fang Gao
- Herpetological Research Center, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Long-Hui Lin
- Herpetological Research Center, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Peng Li
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Hong Li
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Xiang Ji
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, China
| | - Yan-Fu Qu
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
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Liu H, Yang X, Yang W, Zheng Z, Zhu J. Gut Microbiota of Freshwater Gastropod (Bellamya aeruginosa) Assist the Adaptation of Host to Toxic Cyanobacterial Stress. Toxins (Basel) 2023; 15:toxins15040252. [PMID: 37104190 PMCID: PMC10141019 DOI: 10.3390/toxins15040252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/20/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023] Open
Abstract
Gut microbes play a critical role in helping hosts adapt to external environmental changes and are becoming an important phenotype for evaluating the response of aquatic animals to environmental stresses. However, few studies have reported the role that gut microbes play after the exposure of gastropods to bloom-forming cyanobacteria and toxins. In this study, we investigated the response pattern and potential role of intestinal flora in freshwater gastropod Bellamya aeruginosa when exposed to toxic and non-toxic strains of Microcystis aeruginosa, respectively. Results showed that the composition of the intestinal flora of the toxin-producing cyanobacteria group (T group) changed significantly over time. The concentration of microcystins (MCs) in hepatopancreas tissue decreased from 2.41 ± 0.12 on day 7 to 1.43 ± 0.10 μg·g−1 dry weight on day 14 in the T group. The abundance of cellulase-producing bacteria (Acinetobacter) was significantly higher in the non-toxic cyanobacteria group (NT group) than that in the T group on day 14, whereas the relative abundance of MC-degrading bacteria (Pseudomonas and Ralstonia) was significantly higher in the T group than that in the NT group on day 14. In addition, the co-occurrence networks in the T group were more complex than that in the NT group at day 7 and day 14. Some genera identified as key nodes, such as Acinetobacter, Pseudomonas, and Ralstonia, showed different patterns of variation in the co-occurrence network. Network nodes clustered to Acinetobacter increased in the NT group from day 7 to day 14, whereas the interactions between Pseudomonas and Ralstonia and other bacteria almost changed from positive correlations in the D7T group to negative correlations in the D14T group. These results suggested that these bacteria not only have the ability to improve host resistance to toxic cyanobacterial stress by themselves, but they can also further assist host adaptation to environmental stress by regulating the interaction patterns within the community. This study provides useful information for understanding the role of freshwater gastropod gut flora in response to toxic cyanobacteria and reveals the underlying tolerance mechanisms of B. aeruginosa to toxic cyanobacteria.
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9
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Liu F, Li K. Comparison of epiphytic and intestinal bacterial communities in freshwater snails ( Bellamya aeruginosa) living on submerged plants. PeerJ 2022; 10:e14318. [PMID: 36348666 PMCID: PMC9637354 DOI: 10.7717/peerj.14318] [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: 07/07/2022] [Accepted: 10/09/2022] [Indexed: 11/06/2022] Open
Abstract
The combination of submerged plants and snails can combat eutrophication of freshwater systems by suppressing algal growth and assimilating nutrients. By consuming epiphytes, snails can benefit the growth of submerged plants. However, the efficiency of this phytoremediation strategy may depend on the microbes associated with the plants and snails. In this study, we compared the epiphytic bacterial communities on submerged plants (Vallisneria natans and Cabomba caroliniana) and intestinal bacterial communities of a snail, Bellamya aeruginosa, found on these plants using 16S rRNA gene sequencing. Epiphytic bacterial communities were similar between the two plant species and snails shared a high proportion of snail intestinal bacterial OTUs (75%) and genera (85%) with plants they grazed on. However, significant variations of Bray-Curtis distances differentiated epiphytic and intestinal bacterial communities. In addition, between the top 50 genera shared by intestinal and epiphytic bacterial communities, more Spearman correlations were detected within bacterial communities associated with snails than between communities associated with plants (190 vs. 143), and the correlations in epiphytic bacterial networks were more concentrated on certain genera, indicating they possessed distinct bacterial networks. This suggests the bacterial communities associated with snails do not depend strongly on the plant they graze on, which may be important for better understanding the role of snails in aquatic eco-restoration.
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Affiliation(s)
- Fucai Liu
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, China
| | - Kejun Li
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, China
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10
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Kivistik C, Käiro K, Tammert H, Sokolova IM, Kisand V, Herlemann DPR. Distinct stages of the intestinal bacterial community of Ampullaceana balthica after salinization. Front Microbiol 2022; 13:767334. [PMID: 36110301 PMCID: PMC9468257 DOI: 10.3389/fmicb.2022.767334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 07/19/2022] [Indexed: 12/15/2022] Open
Abstract
Environmental disturbances influence bacterial community structure and functioning. To investigate the effect of environmental disturbance caused by changes in salinity on host-protected bacterial communities, we analyzed the microbiome within the gastrointestinal tract of Ampullaceana balthica in different salinities. A. balthica is a benthic gastropod found in fresh- and mesohaline waters. Whereas the total energy reserves of A. balthica were unaffected by an increase of salinity to 3, a high mortality rate was detected after a shift from freshwater to salinity 6 suggesting a major disruption of energy homeostasis. The shift to salinity 6 also caused a change in the gastrointestinal bacterial community composition. At salinity 3, the bacterial community composition of different host individuals was related either to the freshwater or salinity 6 gastrointestinal bacterial community, indicating an ambivalent nature of salinity 3. Since salinity 3 represents the range where aquatic gastropods are able to regulate their osmolarity, this may be an important tipping point during salinization. The change in the intestinal microbiome was uncoupled from the change in the water bacterial community and unrelated to the food source microbiome. Our study shows that environmental disturbance caused by salinity acts also on the host-protected microbiome. In light of the sea-level rise, our findings indicate that salinization of the near-shore freshwater bodies will cause changes in organisms' intestinal microbiomes if a critical salinity threshold (presumably ∼3) is exceeded.
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Affiliation(s)
- Carmen Kivistik
- Estonian University of Life Sciences, Center for Limnology, Tartu, Estonia
| | - Kairi Käiro
- Estonian University of Life Sciences, Center for Limnology, Tartu, Estonia
| | - Helen Tammert
- Estonian University of Life Sciences, Center for Limnology, Tartu, Estonia
| | - Inna M. Sokolova
- Department of Marine Biology, Institute for Biological Sciences, University of Rostock, Rostock, Germany
- Department of Maritime Systems, Interdisciplinary Faculty, University of Rostock, Rostock, Germany
| | - Veljo Kisand
- Estonian University of Life Sciences, Center for Limnology, Tartu, Estonia
- Institute of Technology, University of Tartu, Tartu, Estonia
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Quintanilla-Mena MA, Olvera-Novoa MA, Sánchez-Tapia IA, Lara-Pérez LA, Rivas-Reyes I, Gullian-Klanian M, Patiño-Suárez MV, Puch-Hau CA. The digestive tract sections of the sea cucumber Isostichopus badionotus reveal differences in composition, diversity, and functionality of the gut microbiota. Arch Microbiol 2022; 204:463. [PMID: 35792945 DOI: 10.1007/s00203-022-03080-9] [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: 08/26/2021] [Revised: 06/11/2022] [Accepted: 06/15/2022] [Indexed: 11/30/2022]
Abstract
For the first time, this study analyses the composition and diversity of the gut microbiota of Isostichopus badionotus in captivity, using high-throughput 16S rRNA sequencing, and predicts the metagenomic functions of the microbiota. The results revealed a different composition of the gut microbiota for the foregut (FG) and midgut (MG) compared to the hindgut (HG), with a predominance of Proteobacteria, followed by Actinobacteria, Bacteroidetes, and Firmicutes. The FG and MG demonstrated a greater bacterial diversity compared to the HG. In addition, a complex network of interactions was observed at the genus level and identified some strains with probiotic and bioremediation potentials, such as Acinetobacter, Ruegeria, Streptococcus, Lactobacillus, Pseudomonas, Enterobacter, Aeromonas, Rhodopseudomonas, Agarivorans, Bacillus, Enterococcus, Micrococcus, Bifidobacterium, and Shewanella. Predicting metabolic pathways revealed that the bacterial composition in each section of the intestine participates in different physiological processes such as metabolism, genetic and environmental information processing, organismal systems, and cellular processes. Understanding and manipulating microbe--host-environment interactions and their associated functional capacity could substantially contribute to achieving more sustainable aquaculture systems for I. badionotus.
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Affiliation(s)
- Mercedes A Quintanilla-Mena
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Departamento de Recursos de Mar, Unidad Mérida, Km. 6 Antigua Carretera a Progreso, Apdo. Postal 73-CORDEMEX, 97310, Mérida, Yucatán, Mexico
| | - Miguel A Olvera-Novoa
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Departamento de Recursos de Mar, Unidad Mérida, Km. 6 Antigua Carretera a Progreso, Apdo. Postal 73-CORDEMEX, 97310, Mérida, Yucatán, Mexico
| | - Itzel A Sánchez-Tapia
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Departamento de Recursos de Mar, Unidad Mérida, Km. 6 Antigua Carretera a Progreso, Apdo. Postal 73-CORDEMEX, 97310, Mérida, Yucatán, Mexico
| | - Luis A Lara-Pérez
- Tecnológico Nacional de México Campus Instituto Tecnológico de la Zona Maya, Carretera Chetumal-Escárcega km 21.5, C.P. 77965, Ejido Juan Sarabia, Quintana Roo, Mexico
| | - Isajav Rivas-Reyes
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Departamento de Recursos de Mar, Unidad Mérida, Km. 6 Antigua Carretera a Progreso, Apdo. Postal 73-CORDEMEX, 97310, Mérida, Yucatán, Mexico
| | - Mariel Gullian-Klanian
- Universidad Marista de Mérida, Periférico Norte Tablaje Catastral 13941, Carretera Mérida-Progreso, P.O. Box 97300, Mérida, Yucatán, Mexico
| | - María V Patiño-Suárez
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Departamento de Recursos de Mar, Unidad Mérida, Km. 6 Antigua Carretera a Progreso, Apdo. Postal 73-CORDEMEX, 97310, Mérida, Yucatán, Mexico
| | - Carlos A Puch-Hau
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Departamento de Recursos de Mar, Unidad Mérida, Km. 6 Antigua Carretera a Progreso, Apdo. Postal 73-CORDEMEX, 97310, Mérida, Yucatán, Mexico.
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12
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Lyu T, Zhu J, Yang X, Yang W, Zheng Z. Responses of Gut Microbial Community Composition and Function of the Freshwater Gastropod Bellamya aeruginosa to Cyanobacterial Bloom. Front Microbiol 2022; 13:906278. [PMID: 35633671 PMCID: PMC9136413 DOI: 10.3389/fmicb.2022.906278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 04/20/2022] [Indexed: 11/24/2022] Open
Abstract
Freshwater gastropods are widely distributed and play an important role in aquatic ecosystems. Symbiotic microorganisms represented by gut microbes can affect the physiological and biochemical activities of their hosts. However, few studies have investigated the response of the gut microbial community of snails to environmental stress. In this study, the dynamics of the gut microbiota of the gastropod Bellamya aeruginosa were tracked to explore their responses in terms of their composition and function to cyanobacterial bloom. Differences in gut microbial community structures during periods of non-cyanobacterial bloom and cyanobacterial bloom were determined. Results showed that the alpha diversity of the gut microbiota exposed to cyanobacterial bloom was lower than that of the gut microbiota exposed to non-cyanobacterial bloom. The main genera differentiating the two periods were Faecalibacterium, Subdoligranulum, Ralstonia, and Pelomonas. Microcystins (MCs) and water temperature (WT) were the primary factors influencing the gut microbial community of B. aeruginosa; between them, the influence of MCs was greater than that of WT. Fourteen pathways (level 2) were notably different between the two periods. The pathways of carbohydrate metabolism, immune system, environmental adaptation, and xenobiotics biodegradation and metabolism in these differential pathways exhibited a strong linear regression relationship with MCs and WT. Changes in the functions of the gut microbiota may help B. aeruginosa meet its immunity and energy needs during cyanobacterial bloom stress. These results provide key information for understanding the response pattern of freshwater snail intestinal flora to cyanobacterial blooms and reveal the underlying environmental adaptation mechanism of gastropods from the perspective of intestinal flora.
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Shi L, Yang X, Dou H, Lyu T, Wang L, Zhou S, Shang Y, Dong Y, Zhang H. Comparative Analysis of the Gut Microbiota of Mongolian Gazelle ( Procapra gutturosa) Under Fragmented Habitats. Front Microbiol 2022; 13:830321. [PMID: 35369477 PMCID: PMC8965509 DOI: 10.3389/fmicb.2022.830321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 01/11/2022] [Indexed: 12/15/2022] Open
Abstract
The existence of man-made facilities such as pasture fences makes the grassland ecosystem fragmented and endangers the survival of local wild animals. The Mongolian gazelle is highly sensitive to hunting and habitat destruction, and is one of the most threatened artiodactyls in Eurasia. It provides a critical model to studying gut microbiota under fragmented habitats. Therefore, we applied metagenomics sequencing to analyze the gut microbiota communities and functions of Mongolian gazelle under fragmented habitats. The results demonstrated that there were no significant differences in gut microbial communities between the different groups at both the phylum and genus level. The functional analyses showed that the Mongolian gazelle in fragmented habitat had a stronger ability to degrade naphthalene, but their ability to absorb carbohydrates was weaker. This study provided fundamental information about the gut microbiota of Mongolian gazelle, and we recommend reducing habitat fragmentation to better protect the Mongolian gazelle.
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Affiliation(s)
- Lupeng Shi
- College of Life Sciences, Qufu Normal University, Qufu, China
| | - Xiufeng Yang
- College of Life Sciences, Qufu Normal University, Qufu, China
| | - Huashan Dou
- Hulunbuir Academy of Inland Lakes in Northern Cold & Arid Areas, Hulunbuir, China
| | - Tianshu Lyu
- College of Life Sciences, Qufu Normal University, Qufu, China
| | - Lidong Wang
- College of Life Sciences, Qufu Normal University, Qufu, China
| | - Shengyang Zhou
- College of Life Sciences, Qufu Normal University, Qufu, China
| | - Yongquan Shang
- College of Life Sciences, Qufu Normal University, Qufu, China
| | - Yuehuan Dong
- College of Life Sciences, Qufu Normal University, Qufu, China
| | - Honghai Zhang
- College of Life Sciences, Qufu Normal University, Qufu, China
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Zhou Z, Wu H, Li D, Zeng W, Huang J, Wu Z. Comparison of gut microbiome in the Chinese mud snail ( Cipangopaludina chinensis) and the invasive golden apple snail ( Pomacea canaliculata). PeerJ 2022; 10:e13245. [PMID: 35402093 PMCID: PMC8992660 DOI: 10.7717/peerj.13245] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 03/18/2022] [Indexed: 01/13/2023] Open
Abstract
Background Gut microbiota play a critical role in nutrition absorption and environmental adaptation and can affect the biological characteristics of host animals. The invasive golden apple snail (Pomacea canaliculata) and native Chinese mud snail (Cipangopaludina chinensis) are two sympatric freshwater snails with similar ecological niche in southern China. However, gut microbiota comparison of interspecies remains unclear. Comparing the difference of gut microbiota between the invasive snail P. canaliculata and native snail C. chinensis could provide new insight into the invasion mechanism of P.canaliculata at the microbial level. Methods Gut samples from 20 golden apple snails and 20 Chinese mud snails from wild freshwater habitats were collected and isolated. The 16S rRNA gene V3-V4 region of the gut microbiota was analyzed using high throughput Illumina sequencing. Results The gut microbiota dominantly composed of Proteobacteria, Bacteroidetes, Firmicutes and Epsilonbacteraeota at phylum level in golden apple snail. Only Proteobacteria was the dominant phylum in Chinese mud snail. Alpha diversity analysis (Shannon and Simpson indices) showed there were no significant differences in gut microbial diversity, but relative abundances of the two groups differed significantly (P < 0.05). Beta diversity analysis (Bray Curtis and weighted UniFrac distance) showed marked differences in the gut microbiota structure (P < 0.05). Unique or high abundance microbial taxa were more abundant in the invasive snail compared to the native form. Functional prediction analysis indicated that the relative abundances of functions differed significantly regarding cofactor prosthetic group electron carrier and vitamin biosynthesis, amino acid biosynthesis, and nucleoside and nucleotide biosynthesis (P < 0.05). These results suggest an enhanced potential to adapt to new habitats in the invasive snail.
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Affiliation(s)
- Zihao Zhou
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, Guangxi, China,Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin, Guangxi, China,Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin Institute for Sustainable Development and Innovation, Guangxi Normal University, Guilin, Guangxi, China
| | - Hongying Wu
- Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin Institute for Sustainable Development and Innovation, Guangxi Normal University, Guilin, Guangxi, China
| | - Dinghong Li
- Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin Institute for Sustainable Development and Innovation, Guangxi Normal University, Guilin, Guangxi, China
| | - Wenlong Zeng
- Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin Institute for Sustainable Development and Innovation, Guangxi Normal University, Guilin, Guangxi, China
| | - Jinlong Huang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, Guangxi, China,Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin, Guangxi, China,Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin Institute for Sustainable Development and Innovation, Guangxi Normal University, Guilin, Guangxi, China,College of Life Sciences, Guangxi Normal University, Guilin, Guangxi, China
| | - Zhengjun Wu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, Guangxi, China,Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University, Guilin, Guangxi, China,Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin Institute for Sustainable Development and Innovation, Guangxi Normal University, Guilin, Guangxi, China
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Zhou K, Qin J, Pang H, Chen Z, Huang Y, Li W, Du X, Wen L, Pan X, Lin Y. Comparison of the composition and function of gut microbes between adult and juvenile Cipangopaludina chinensis in the rice snail system. PeerJ 2022; 10:e13042. [PMID: 35282274 PMCID: PMC8916024 DOI: 10.7717/peerj.13042] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 02/10/2022] [Indexed: 01/11/2023] Open
Abstract
Cipangopaludina chinensis is an important economic value snail species with high medicinal value. The gut microbes of aquatic animals plays a vital role in food digestion and nutrient absorption. Herein, we aimed at high-throughput sequencing of 16S rRNA to further investigate whether there were differences in the composition and function of gut microbes of adult and juvenile C. chinensis snails, as well as sediments. This study found that the microbial diversity of the sediment was significantly higher than that of the snails gut (P < 0.001), but there was no significant difference between the gut flora of adult and juvenile snails (P > 0.05). A total of 47 phyla and 644 genera were identified from all samples. Proteobacteria and Verrucomicrobia were the two dominant phyla in all samples, and overall relative abundances was 48.2% and 14.2%, respectively. Moreover, the relative abundances of Aeromonas and Luteolibacter in the gut of juvenile snails (30.8%, 11.8%) were higher than those of adults (27.7%, 10.6%) at the genus level (P > 0.05). Then, four indicator genera were found, namely Flavobacterium, Silanimonas, Geobacter and Zavarzinella, and they abundance in the gut of juvenile snails was significantly higher than that of adults (P < 0.05). This results imply the potential development of Silanimonas as a bait for juvenile snail openings. We observed that Aeromonas was the primary biomarker of the snail gut and sediments (P < 0.001), and it may be a cellulose-degrading bacteria. Function prediction revealed significantly better biochemical function in the snail gut than sediments (P < 0.001), but no significant differences in adult and juvenile snail (P > 0.05). In conclusion, studies show that the snail gut and sediment microbial composition differ, but the two were very similar. The microbial composition of the snail gut was relatively stable and has similar biological functions. These findings provide valuable information for in-depth understanding of the relationship between snails and environmental microorganisms.
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Affiliation(s)
- Kangqi Zhou
- Guangxi Key Laboratory for Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, China
| | - Junqi Qin
- Guangxi Key Laboratory for Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, China
| | | | - Zhong Chen
- Guangxi Key Laboratory for Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, China
| | - Yin Huang
- Guangxi Key Laboratory for Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, China
| | | | - Xuesong Du
- Guangxi Key Laboratory for Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, China
| | - Luting Wen
- Guangxi Key Laboratory for Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, China
| | - Xianhui Pan
- Guangxi Key Laboratory for Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, China
| | - Yong Lin
- Guangxi Key Laboratory for Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, China
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Belouhova M, Daskalova E, Yotinov I, Topalova Y, Velkova L, Dolashki A, Dolashka P. Microbial diversity of garden snail mucus. Microbiologyopen 2022; 11:e1263. [PMID: 35212476 PMCID: PMC8822593 DOI: 10.1002/mbo3.1263] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 01/07/2022] [Indexed: 01/04/2023] Open
Abstract
The search for new natural compounds for application in medicine and cosmetics is a trend in biotechnology. One of the sources of such active compounds is the snail mucus. Snail physiology and the biological activity of their fluids (especially the mucus) are still poorly studied. Only a few previous studies explored the relationship between snails and their microbiome. The present study was focused on the biodiversity of the snail mucus used in the creation of cosmetic products, therapeutics, and nutraceuticals. The commonly used cultivation techniques were applied for the determination of the number of major bacterial groups. Fluorescence in situ hybridization for key taxa was performed. The obtained images were subjected to digital image analysis. Sequencing of the 16S rRNA gene was also done. The results showed that the mucus harbors a rich bacterial community (10.78 × 1010 CFU/ml). Among the dominant bacteria, some are known for their ability to metabolize complex polysaccharides or are usually found in soil and plants (Rhizobiaceae, Shewanella, Pedobacter, Acinetobacter, Alcaligenes). The obtained data demonstrated that the snail mucus creates a unique environment for the development of the microbial community that differs from other parts of the animal and which resulted from the combined contribution of the microbiomes derived from the soil, plants, and the snails.
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Affiliation(s)
- Mihaela Belouhova
- Faculty of Biology Sofia University “St. Kliment Ohridski” Sofia Bulgaria
| | - Elmira Daskalova
- Faculty of Biology Sofia University “St. Kliment Ohridski” Sofia Bulgaria
| | - Ivaylo Yotinov
- Faculty of Biology Sofia University “St. Kliment Ohridski” Sofia Bulgaria
| | - Yana Topalova
- Faculty of Biology Sofia University “St. Kliment Ohridski” Sofia Bulgaria
| | - Lyudmila Velkova
- Institute of Organic Chemistry with Centre of Phytochemistry Bulgarian Academy of Sciences Sofia Bulgaria
| | - Aleksander Dolashki
- Institute of Organic Chemistry with Centre of Phytochemistry Bulgarian Academy of Sciences Sofia Bulgaria
| | - Pavlina Dolashka
- Institute of Organic Chemistry with Centre of Phytochemistry Bulgarian Academy of Sciences Sofia Bulgaria
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Huang Z, Zhu L, Lv J, Pu Z, Zhang L, Chen G, Hu X, Zhang Z, Zhang H. Dietary Effects on Biological Parameters and Gut Microbiota of Harmonia axyridis. Front Microbiol 2022; 12:818787. [PMID: 35154044 PMCID: PMC8828657 DOI: 10.3389/fmicb.2021.818787] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 12/29/2021] [Indexed: 12/24/2022] Open
Abstract
The multicolored Asian lady beetle (Harmonia axyridis, H. axyridis, Coleoptera, and Coccinellidae) is an effective biocontrol agent against agricultural pests. Previous studies have suggested that amount, type, and the quality of food can directly affect the biological aspects of H. axyridis. In this study, we investigated the influence of the food sources (Acyrthosiphon pisum Harris, Diaphorina citri Kuwayama, and artificial diets) on the gut microbiota diversity and the biology, reproductive variables, and population growth indicators of H. axyridis. Three kinds of diets were considered in this study: (1) HY: the adult of A. pisum Harris (HY group); (2) HM: the adult of D. citri Kuwayama (HM group); (3) HR: artificial diets prepared by blending a portion of fresh homogenized pork liver (15 g), honey (3 g), distilled water (35 ml) (HR group). We found that gut microbiota composition and diversity and the biological parameters differed when H. axyridis was fed with different diets. The abundance of Enterobacteriaceae was the highest in the HM group, followed by HY group, and was the lowest in the HR group. The abundance of Staphylococcaceae was highest in the HR group. Among the gut fungi, Davidiellaceae and Wallemiaceae were the highest and lowest in the HY group; Incertae_sedis were the major gut fungi in the HR group. Meanwhile, the changes of biological parameters may be correlated with the changes of Streptococcaceae abundance, Micrococcaceae abundance, Staphylococcaceae abundance, and Enterobacteriaceae abundance in responds to diet changes. To sum up, these data suggest that different diets can influence the changes in adult H. axyridis gut microbiota, consequently affecting the biological parameters.
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Affiliation(s)
- Zhendong Huang
- The Citrus Research Institute of Zhejiang Province, Taizhou, China
- State Key Laboratory of Agricultural Microbiology, Institute of Urban and Horticultural Entomology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
- *Correspondence: Zhendong Huang,
| | - Li Zhu
- The Citrus Research Institute of Zhejiang Province, Taizhou, China
| | - Jia Lv
- The Citrus Research Institute of Zhejiang Province, Taizhou, China
| | - Zhanxu Pu
- The Citrus Research Institute of Zhejiang Province, Taizhou, China
| | - Lipin Zhang
- The Citrus Research Institute of Zhejiang Province, Taizhou, China
| | - Guoqing Chen
- The Citrus Research Institute of Zhejiang Province, Taizhou, China
| | - Xiurong Hu
- The Citrus Research Institute of Zhejiang Province, Taizhou, China
| | - Zhenyu Zhang
- State Key Laboratory of Agricultural Microbiology, Institute of Urban and Horticultural Entomology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Hongyu Zhang
- State Key Laboratory of Agricultural Microbiology, Institute of Urban and Horticultural Entomology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
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Chalifour B, Li J. Characterization of the gut microbiome in wild rocky mountainsnails (Oreohelix strigosa). Anim Microbiome 2021; 3:49. [PMID: 34274024 PMCID: PMC8285866 DOI: 10.1186/s42523-021-00111-6] [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: 03/05/2021] [Accepted: 07/04/2021] [Indexed: 11/30/2022] Open
Abstract
Background The Rocky Mountainsnail (Oreohelix strigosa) is a terrestrial gastropod of ecological importance in the Rocky Mountains of western United States and Canada. Across the animal kingdom, including in gastropods, gut microbiomes have profound effects on the health of the host. Current knowledge regarding snail gut microbiomes, particularly throughout various life history stages, is limited. Understanding snail gut microbiome composition and dynamics can provide an initial step toward better conservation and management of this species. Results In this study, we employed 16S rRNA gene amplicon sequencing to examine gut bacteria communities in wild-caught O. strigosa populations from the Front Range of Colorado. These included three treatment groups: (1) adult and (2) fetal snails, as well as (3) sub-populations of adult snails that were starved prior to ethanol fixation. Overall, O. strigosa harbors a high diversity of bacteria. We sequenced the V4 region of the 16S rRNA gene on an Illumina MiSeq and obtained 2,714,330 total reads. We identified a total of 7056 unique operational taxonomic units (OTUs) belonging to 36 phyla. The core gut microbiome of four unique OTUs accounts for roughly half of all sequencing reads returned and may aid the snails’ digestive processes. Significant differences in microbial composition, as well as richness, evenness, and Shannon Indices were found across the three treatment groups. Conclusions Comparisons of gut microbiomes in O. strigosa adult, fetal, and starved samples provide evidence that the host internal environments influence bacterial community compositions, and that bacteria may be transmitted vertically from parent to offspring. This work provides the first comprehensive report on the structure and membership of bacterial populations in the gastropod family Oreohelicidae and reveals similarities and differences across varying life history metrics. Strong differentiation between these life history metrics demonstrates the need for wider sampling for studies of dynamics of the snail gut microbiome. Supplementary Information The online version contains supplementary material available at 10.1186/s42523-021-00111-6.
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Affiliation(s)
- Bridget Chalifour
- Department of Ecology and Evolutionary Biology, University of Colorado Boulder, 1900 Pleasant Street, 334 UCB, Boulder, CO, 80309, USA.
| | - Jingchun Li
- Department of Ecology and Evolutionary Biology, University of Colorado Boulder, 1900 Pleasant Street, 334 UCB, Boulder, CO, 80309, USA.,Museum of Natural History, University of Colorado Boulder, 265 UCB, Boulder, CO, 80309, USA
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Muneer MA, Huang X, Hou W, Zhang Y, Cai Y, Munir MZ, Wu L, Zheng C. Response of Fungal Diversity, Community Composition, and Functions to Nutrients Management in Red Soil. J Fungi (Basel) 2021; 7:jof7070554. [PMID: 34356933 PMCID: PMC8307627 DOI: 10.3390/jof7070554] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 07/05/2021] [Accepted: 07/09/2021] [Indexed: 11/23/2022] Open
Abstract
Soil fungi play a critical role in plant performance and soil nutrient cycling. However, the understanding of soil fungal community composition and functions in response to different nutrients management practices in red soils remains largely unknown. Here, we investigated the responses of soil fungal communities and functions under conventional farmer fertilization practice (FFP) and different nutrient management practices, i.e., optimization of NPK fertilizer (O) with soil conditioner (O + C), with lime and mushroom residue (O + L + M), and with lime and magnesium fertilizer (O + L + Mg). Illumina high-throughput sequencing was used for fungal identification, while the functional groups were inferred with FUNGuild. Nutrient management practices significantly raised the soil pH to 4.79–5.31 compared with FFP (3.69), and soil pH had the most significant effect (0.989 ***) on fungal communities. Predominant phyla, including Ascomycota, Basidiomycota, and Mortierellomycota were identified in all treatments and accounted for 94% of all fungal communities. The alpha diversity indices significantly increased under nutrients management practices compared with FFP. Co-occurrence network analysis revealed the keystone fungal species in the red soil, i.e., Ascomycota (54.04%), Basidiomycota (7.58%), Rozellomycota (4.55%), and Chytridiomycota (4.04%). FUNGuild showed that the relative abundance of arbuscular mycorrhizal fungi and ectomycorrhizal fungi was higher, while pathogenic fungi were lower under nutrient management practices compared with FFP. Our findings have important implications for the understanding of improvement of acidic soils that could significantly improve the soil fungal diversity and functioning in acidic soils.
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Affiliation(s)
- Muhammad Atif Muneer
- College of Resources and Environment/International Magnesium Institute, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (M.A.M.); (X.H.); (W.H.); (Y.Z.); (L.W.)
| | - Xiaoman Huang
- College of Resources and Environment/International Magnesium Institute, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (M.A.M.); (X.H.); (W.H.); (Y.Z.); (L.W.)
| | - Wei Hou
- College of Resources and Environment/International Magnesium Institute, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (M.A.M.); (X.H.); (W.H.); (Y.Z.); (L.W.)
| | - Yadong Zhang
- College of Resources and Environment/International Magnesium Institute, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (M.A.M.); (X.H.); (W.H.); (Y.Z.); (L.W.)
| | - Yuanyang Cai
- College of Plant Science, Jilin University, Changchun 130062, China;
| | - Muhammad Zeeshan Munir
- College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China;
| | - Liangquan Wu
- College of Resources and Environment/International Magnesium Institute, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (M.A.M.); (X.H.); (W.H.); (Y.Z.); (L.W.)
| | - Chaoyuan Zheng
- College of Resources and Environment/International Magnesium Institute, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (M.A.M.); (X.H.); (W.H.); (Y.Z.); (L.W.)
- Correspondence: ; Tel.: +86-177-5020-8499
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Composition and diversity of gut microbiota in Pomacea canaliculata in sexes and between developmental stages. BMC Microbiol 2021; 21:200. [PMID: 34210255 PMCID: PMC8252327 DOI: 10.1186/s12866-021-02259-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 06/10/2021] [Indexed: 01/16/2023] Open
Abstract
Background The apple snail, Pomacea canaliculata, is one of the world’s 100 worst invasive alien species and vector of some pathogens relevant to human health. Methods On account of the importance of gut microbiota to the host animals, we compared the communities of the intestinal microbiota from P. canaliculata collected at different developmental stages (juvenile and adult) and different sexes by using high-throughput sequencing. Results The core bacteria phyla of P. canaliculata gut microbiota included Tenericutes (at an average relative abundance of 45.7 %), Firmicutes (27.85 %), Proteobacteria (11.86 %), Actinobacteria (4.45 %), and Cyanobacteria (3.61 %). The female group possessed the highest richness values, whereas the male group possessed the lowest bacterial richness and diversity compared with the female and juvenile group. Both the developmental stages and sexes had important effects on the composition of the intestinal microbiota of P. canaliculata. By LEfSe analysis, microbes from the phyla Proteobacteria and Actinobacteria were enriched in the female group, phylum Bacteroidetes was enriched in the male group, family Mycoplasmataceae and genus Leuconostoc were enriched in the juvenile group. PICRUSt analysis predicted twenty-four metabolic functions in all samples, including general function prediction, amino acid transport and metabolism, transcription, replication, recombination and repair, carbohydrate transport and metabolism, etc. Conclusions This study provided a general understanding of the diversity characteristics of intestinal microbial communities of P. canaliculata, and indicated that developmental stage and gender could both influence the intestinal microbes of P. canaliculata. Further study may focus on the interaction between the gut microbiota and their host. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-021-02259-2.
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21
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Jackson D, Maltz MR, Freund HL, Borneman J, Aronson E. Environment and Diet Influence the Bacterial Microbiome of Ambigolimax valentianus, an Invasive Slug in California. INSECTS 2021; 12:575. [PMID: 34201881 PMCID: PMC8307491 DOI: 10.3390/insects12070575] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 06/12/2021] [Accepted: 06/15/2021] [Indexed: 12/27/2022]
Abstract
Ambigolimax valentianus is an invasive European terrestrial gastropod distributed throughout California. It is a serious pest of gardens, plant nurseries, and greenhouses. We evaluated the bacterial microbiome of whole slugs to capture a more detailed picture of bacterial diversity and composition in this host. We concentrated on the influences of diet and environment on the Ambigolimax valentianus core bacterial microbiome as a starting point for obtaining valuable information to aid in future slug microbiome studies. Ambigolimax valentianus were collected from two environments (gardens or reared from eggs in a laboratory). DNA from whole slugs were extracted and next-generation 16S rRNA gene sequencing was performed. Slug microbiomes differed between environmental sources (garden- vs. lab-reared) and were influenced by a sterile diet. Lab-reared slugs fed an unsterile diet harbored greater bacterial species than garden-reared slugs. A small core microbiome was present that was shared across all slug treatments. This is consistent with our hypothesis that a core microbiome is present and will not change due to these treatments. Findings from this study will help elucidate the impacts of slug-assisted bacterial dispersal on soils and plants, while providing valuable information about the slug microbiome for potential integrated pest research applications.
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Affiliation(s)
- Denise Jackson
- Department of Microbiology and Plant Pathology, University of California, Riverside, CA 92521, USA; (D.J.); (H.L.F.); (J.B.)
- Natural Science Division, Porterville College, Porterville, CA 93257, USA
| | - Mia R. Maltz
- Center for Conservation Biology, University of California, Riverside, CA 92521, USA;
- Division of Biomedical Sciences, University of California, Riverside, CA 92521, USA
| | - Hannah L. Freund
- Department of Microbiology and Plant Pathology, University of California, Riverside, CA 92521, USA; (D.J.); (H.L.F.); (J.B.)
- Genetics, Genomics, and Bioinformatics Program, University of California, Riverside, CA 92521, USA
| | - James Borneman
- Department of Microbiology and Plant Pathology, University of California, Riverside, CA 92521, USA; (D.J.); (H.L.F.); (J.B.)
| | - Emma Aronson
- Department of Microbiology and Plant Pathology, University of California, Riverside, CA 92521, USA; (D.J.); (H.L.F.); (J.B.)
- Center for Conservation Biology, University of California, Riverside, CA 92521, USA;
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22
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Chalifour B, Li J. A Review of the Molluscan Microbiome: Ecology, Methodology and Future. MALACOLOGIA 2021. [DOI: 10.4002/040.063.0208] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Bridget Chalifour
- Department of Ecology and Evolutionary Biology, University of Colorado Boulder, 334 UCB, Boulder, Colorado, 80309, U.S.A
| | - Jingchun Li
- Department of Ecology and Evolutionary Biology, University of Colorado Boulder, 334 UCB, Boulder, Colorado, 80309, U.S.A
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23
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Hu Z, Tong Q, Chang J, Yu J, Li S, Niu H, Ma D. Gut bacterial communities in the freshwater snail Planorbella trivolvis and their modification by a non-herbivorous diet. PeerJ 2021; 9:e10716. [PMID: 33614273 PMCID: PMC7883694 DOI: 10.7717/peerj.10716] [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: 07/09/2020] [Accepted: 12/15/2020] [Indexed: 12/19/2022] Open
Abstract
The freshwater pulmonate snail Planorbella trivolvis is a common species in various bodies of water but is not native to China. Planorbella trivolvis usually live on diets with high fiber content, such as water grasses, algae and fallen leaves. These snails can attach to the wall of a water tank or to water grass and can be transported overseas to China through the ornamental fish trade. There are few studies investigating the intestinal microbiota of freshwater snails. In this study, using culture-independent molecular analysis, we assessed for the first time the complexity of bacterial communities in the intestines of reared snails. The intestinal microbiota in the snails fed different diets, that is, herbivorous feed (HV) with high cellulose and non-herbivorous feed (NHV) with low cellulose, were analyzed by Illumina sequencing. The results showed that the NHV-based diet significantly increased the body mass, shell diameter and specific growth rate of the snails after 60 days of rearing (P < 0.05). Histological experiments showed that the fat droplets in the epithelium columnar cells of the intestines of the NHV snails increased, and the cilia on these cells fell off. The sequencing results identified 486 and 195 OTUs in HV and NHV, respectively. Lots of bacteria were not reported previously in snails. The intestinal microbiota diversity index (Shannon, Simpson, Ace and Chao) in the NHV snails was significantly lower than that in the HV snails. The gut microbiota in the HV snails were predominantly Proteobacteria (52.97%) and Bacteroidetes (28.75%), while the gut microbiota in NHV snails were predominantly Proteobacteria (95.23%). At the genus level, Cloacibacterium (24.60%), Pseudomonas (4.47%), OM6ON (6.12%), and Rhodobacter (5.79%) were observed to be abundant in HV snails. However, Aeromonas (85.4%) was determined to be predominant in NHV snails. Functional prediction of the gut microbiome in snails by PICRUSt demonstrated a significant difference between the two groups, and the HV snails exhibited higher lignocellulose enzyme activity than did the NHV snails. This study represents a first step in characterizing the gut microbiota of the freshwater snail. Most of these microbes can process plant biomass and digest cellulose and lignocellulose, and the enzymes of these bacteria may have potential biotechnological applications in a variety of industrial processes.
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Affiliation(s)
- Zongfu Hu
- College of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, People's Republic of China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - Qing Tong
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - Jie Chang
- College of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, People's Republic of China
| | - Jianhua Yu
- College of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, People's Republic of China
| | - Shuguo Li
- College of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, People's Republic of China
| | - Huaxin Niu
- College of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, People's Republic of China
| | - Deying Ma
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
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Safaei N, Mast Y, Steinert M, Huber K, Bunk B, Wink J. Angucycline-like Aromatic Polyketide from a Novel Streptomyces Species Reveals Freshwater Snail Physa acuta as Underexplored Reservoir for Antibiotic-Producing Actinomycetes. Antibiotics (Basel) 2020; 10:antibiotics10010022. [PMID: 33383910 PMCID: PMC7823578 DOI: 10.3390/antibiotics10010022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/23/2020] [Accepted: 12/25/2020] [Indexed: 11/16/2022] Open
Abstract
Simple Summary The current study shows that freshwater snails can be considered as new sources for bioactive metabolites, since a novel Streptomyces species 7NS3 produced four active compounds against Gram-positive bacteria. One of the compounds was an angucycline-like aromatic polyketide matched with a known compound, emycin A. Genome mining studies based on the whole-genome sequence of 7NS3 resulted in the identification of a gene cluster potentially coding for emycin A biosynthesis. Abstract Antibiotic producers have mainly been isolated from soil, which often has led to the rediscovery of known compounds. In this study, we identified the freshwater snail Physa acuta as an unexplored source for new antibiotic producers. The bacterial diversity associated with the snail was characterized by a metagenomic approach using cultivation-independent high-throughput sequencing. Although Actinobacteria represented only 2% of the bacterial community, the focus was laid on the isolation of the genus Streptomyces due to its potential to produce antibiotics. Three Streptomyces strains (7NS1, 7NS2 and 7NS3) were isolated from P. acuta, and the antimicrobial activity of the crude extracts were tested against a selection of Gram-positive and Gram-negative bacteria and fungi. 7NS3 showed the strongest activity against Gram-positive bacteria and, thus, was selected for genome sequencing and a phylogenomic analysis. 7NS3 represents a novel Streptomyces species, which was deposited as Streptomyces sp. DSM 110735 at the Leibniz Institute-German Collection of Microorganisms and Cell Cultures (DSMZ). Bioassay-guided high-performance liquid chromatography (HPLC) and high-resolution electrospray ionization-mass spectrometry (HR-ESI-MS) analyses of crude extract fractions resulted in the detection of four compounds, one of which matched the compound characteristics of emycin A, an angucycline-like aromatic polyketide. Genome mining studies based on the whole-genome sequence of 7NS3 resulted in the identification of a gene cluster potentially coding for emycin A biosynthesis. Our study demonstrates that freshwater snails like P. acuta can represent promising reservoirs for the isolation of new antibiotic-producing actinobacterial species.
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Affiliation(s)
- Nasim Safaei
- Helmholtz Centre for Infection Research, Department of microbial Strain Collection, Inhoffenstrasse 7, D-38124 Braunschweig, Germany;
| | - Yvonne Mast
- German Center for Infection Research (DZIF), Leibniz Institute DSMZ, Inhoffenstrasse 7, D-38124 Braunschweig, Germany; (Y.M.); (K.H.); (B.B.)
| | - Michael Steinert
- Technical University of Braunschweig, Spielmannstr. 7, 38106 Braunschweig, Germany;
| | - Katharina Huber
- German Center for Infection Research (DZIF), Leibniz Institute DSMZ, Inhoffenstrasse 7, D-38124 Braunschweig, Germany; (Y.M.); (K.H.); (B.B.)
| | - Boyke Bunk
- German Center for Infection Research (DZIF), Leibniz Institute DSMZ, Inhoffenstrasse 7, D-38124 Braunschweig, Germany; (Y.M.); (K.H.); (B.B.)
| | - Joachim Wink
- Helmholtz Centre for Infection Research, Department of microbial Strain Collection, Inhoffenstrasse 7, D-38124 Braunschweig, Germany;
- Correspondence: ; Tel.: +49-531-6181-4223
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25
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Osório JB, de Mattos Pereira L, Giongo A, Marconatto L, Potriquet J, Candido RRF, Mulvenna J, Jones M, Graeff-Teixeira C, Morassutti AL. Mollusk microbiota shift during Angiostrongylus cantonensis infection in the freshwater snail Biomphalaria glabrata and the terrestrial slug Phillocaulis soleiformis. Parasitol Res 2020; 119:2495-2503. [PMID: 32556501 DOI: 10.1007/s00436-020-06743-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Accepted: 06/01/2020] [Indexed: 02/01/2023]
Abstract
In the present work, we reported for the first time the microbiome from Phyllocaulis soleiformis and Biomphalaria glabrata assessed using high-throughput DNA sequencing pre- and post-infection with the helminth parasite Angiostrongylus cantonensis. B. glabrata and P. soleiformis were experimentally infected with A. cantonensis. Fecal DNAs from control and infected groups were extracted and subjected to 16S rRNA high-throughput sequencing survey. No significant differences were found in the alpha diversity indexes in Phyllocaulis and Biomphalaria experiments independently. PCoA analysis using the unweighted UniFrac measures showed that both microbiotas behaved differently depending on the host. In Biomphalaria microbiota, control and infected groups were significantly different (p = 0.0219), while Phyllocaulis samples were not (p = 0.5190). The microbiome of P. soleiformis infected with A. cantonensis showed a significant decrease of Sphingobacterium and a substantial increase of Cellvibrio when compared to a control group. The microbiome of B. glabrata infected with A. cantonensis showed a significant decline in the abundance of Flavobacterium, Fluviicola, Nitrospira, Vogesella and an OTU belonging to the family Comamonadaceae, and a significant increase of Uliginosibacterium and an OTU belonging to the family Weeksellaceae when compared to a control group. Overall, the microbiome data reported here provided valuable information with regard to the diversity of bacterial communities that comprise the gut microbiome of gastropods. Furthermore, we report here the effect of the infection of the helminth A. cantonensis in the ratio and distribution of the fecal microbiome of the snails. Further studies are highly valuable in order to better understand those interactions by comparing different microbiome profiles and mollusk models. By now, we anticipate that ecological studies will take significant advantage of these advances, particularly concerning improving our understanding of helminth-microbiome-host interactions.
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Affiliation(s)
- Joana Borges Osório
- Laboratório de Biologia Parasitária, Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Av. Ipiranga, 6681, Predio 12C, Porto Alegre, RS, 90060-900, Brazil
| | - Leandro de Mattos Pereira
- Laboratório de Biologia Parasitária, Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Av. Ipiranga, 6681, Predio 12C, Porto Alegre, RS, 90060-900, Brazil.,Laboratório de Ecologia Microbiana e Molecular, Bloco E - Predio CCS, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Rio de Janeiro, RJ, 21941-590, Brazil
| | - Adriana Giongo
- Instituto do Petróleo e Recursos Naturais, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Av. Ipiranga, 6681, Predio 96J, Porto Alegre, RS, 90060-900, Brazil
| | - Letícia Marconatto
- Laboratório de Biologia Parasitária, Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Av. Ipiranga, 6681, Predio 12C, Porto Alegre, RS, 90060-900, Brazil.,Laboratório de Ecologia Microbiana e Molecular, Bloco E - Predio CCS, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Rio de Janeiro, RJ, 21941-590, Brazil.,Instituto do Petróleo e Recursos Naturais, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Av. Ipiranga, 6681, Predio 96J, Porto Alegre, RS, 90060-900, Brazil.,QIMR Berghofer Medical Research Institute, University of Queensland, Brisbane, Queensland, 4006, Australia.,Department of Physics, The University of Western Australia, M013, 35 Stirling Hwy, Crawley, 6009, Australia.,School of Veterinary Science, The University of Queensland, Gatton, Queensland, 4343, Australia
| | - Jeremy Potriquet
- QIMR Berghofer Medical Research Institute, University of Queensland, Brisbane, Queensland, 4006, Australia
| | | | - Jason Mulvenna
- Instituto do Petróleo e Recursos Naturais, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Av. Ipiranga, 6681, Predio 96J, Porto Alegre, RS, 90060-900, Brazil
| | - Malcolm Jones
- School of Veterinary Science, The University of Queensland, Gatton, Queensland, 4343, Australia
| | - Carlos Graeff-Teixeira
- Laboratório de Biologia Parasitária, Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Av. Ipiranga, 6681, Predio 12C, Porto Alegre, RS, 90060-900, Brazil
| | - Alessandra Loureiro Morassutti
- Laboratório de Biologia Parasitária, Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Av. Ipiranga, 6681, Predio 12C, Porto Alegre, RS, 90060-900, Brazil.
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26
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Klein AH, Ballard KR, Storey KB, Motti CA, Zhao M, Cummins SF. Multi-omics investigations within the Phylum Mollusca, Class Gastropoda: from ecological application to breakthrough phylogenomic studies. Brief Funct Genomics 2020; 18:377-394. [PMID: 31609407 DOI: 10.1093/bfgp/elz017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 07/06/2019] [Accepted: 07/15/2019] [Indexed: 12/22/2022] Open
Abstract
Gastropods are the largest and most diverse class of mollusc and include species that are well studied within the areas of taxonomy, aquaculture, biomineralization, ecology, microbiome and health. Gastropod research has been expanding since the mid-2000s, largely due to large-scale data integration from next-generation sequencing and mass spectrometry in which transcripts, proteins and metabolites can be readily explored systematically. Correspondingly, the huge data added a great deal of complexity for data organization, visualization and interpretation. Here, we reviewed the recent advances involving gastropod omics ('gastropodomics') research from hundreds of publications and online genomics databases. By summarizing the current publicly available data, we present an insight for the design of useful data integrating tools and strategies for comparative omics studies in the future. Additionally, we discuss the future of omics applications in aquaculture, natural pharmaceutical biodiscovery and pest management, as well as to monitor the impact of environmental stressors.
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Affiliation(s)
- Anne H Klein
- Genecology Research Centre, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - Kaylene R Ballard
- Genecology Research Centre, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - Kenneth B Storey
- Institute of Biochemistry & Department of Biology, Carleton University, Ottawa, ON, Canada K1S 5B6
| | - Cherie A Motti
- Australian Institute of Marine Science (AIMS), Cape Ferguson, Townsville Queensland 4810, Australia
| | - Min Zhao
- Genecology Research Centre, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - Scott F Cummins
- Genecology Research Centre, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
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27
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Musella M, Wathsala R, Tavella T, Rampelli S, Barone M, Palladino G, Biagi E, Brigidi P, Turroni S, Franzellitti S, Candela M. Tissue-scale microbiota of the Mediterranean mussel (Mytilus galloprovincialis) and its relationship with the environment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 717:137209. [PMID: 32084687 DOI: 10.1016/j.scitotenv.2020.137209] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/07/2020] [Accepted: 02/07/2020] [Indexed: 06/10/2023]
Abstract
In this study, we characterize the structural variation of the microbiota of Mytilus galloprovincialis at the tissue scale, also exploring the connection with the microbial ecosystem of the surrounding water. Mussels were sampled within a farm located in the North-Western Adriatic Sea and microbiota composition was analyzed in gills, hemolymph, digestive glands, stomach and foot by Next Generation Sequencing marker gene approach. Mussels showed a distinctive microbiota structure, with specific declinations at the tissue level. Indeed, each tissue is characterized by a distinct pattern of dominant families, reflecting a peculiar adaptation to the respective tissue niche. For instance, the microbiota of the digestive gland is characterized by Ruminococcaceae and Lachnospiraceae, being shaped to ferment complex polysaccharides of dietary origin into short-chain fatty acids, well matching the general asset of the animal gut microbiota. Conversely, the gill and hemolymph ecosystems are dominated by marine microorganisms with aerobic oxidative metabolism, consistent with the role played by these tissues as an interface with the external environment. Our findings highlight the putative importance of mussel microbiota for different aspects of host physiology, with ultimate repercussions on mussel health and productivity.
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Affiliation(s)
- Margherita Musella
- HolobioME, Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Rasika Wathsala
- Animal and Environmental Physiology Laboratory, Department of Biological, Geological and Environmental Sciences (BiGeA), University of Bologna, Via S. Alberto 163, 48123 Ravenna, Italy
| | - Teresa Tavella
- HolobioME, Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Simone Rampelli
- HolobioME, Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Monica Barone
- HolobioME, Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Giorgia Palladino
- HolobioME, Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Elena Biagi
- HolobioME, Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Patrizia Brigidi
- HolobioME, Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Silvia Turroni
- HolobioME, Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Silvia Franzellitti
- Animal and Environmental Physiology Laboratory, Department of Biological, Geological and Environmental Sciences (BiGeA), University of Bologna, Via S. Alberto 163, 48123 Ravenna, Italy.
| | - Marco Candela
- HolobioME, Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy.
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Horton AA, Newbold LK, Palacio-Cortés AM, Spurgeon DJ, Pereira MG, Carter H, Gweon HS, Vijver MG, van Bodegom PM, Navarro da Silva MA, Lahive E. Accumulation of polybrominated diphenyl ethers and microbiome response in the great pond snail Lymnaea stagnalis with exposure to nylon (polyamide) microplastics. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 188:109882. [PMID: 31698175 DOI: 10.1016/j.ecoenv.2019.109882] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 10/22/2019] [Accepted: 10/25/2019] [Indexed: 06/10/2023]
Abstract
Microplastics attract widespread attention, including for their potential to transport toxic chemicals in the form of plasticisers and associated hydrophobic organic chemicals, such as polybrominated diphenyl ethers (PBDEs). The aims of this study were to investigate how nylon (polyamide) microplastics may affect PBDE accumulation in snails, and the acute effects of nylon particles and PBDEs on survival, weight change and inherent microbiome diversity and community composition of the pond snail Lymnaea stagnalis. Snails were exposed for 96 h to BDEs-47, 99, 100 and 153 in the presence and absence of 1% w/w nylon microplastics in quartz sand sediment. No mortality was observed over the exposure period. Snails not exposed to microplastics lost significantly more weight compared to those exposed to microplastics. Increasing PBDE concentration in the sediment resulted in an increased PBDE body burden in the snails, however microplastics did not significantly influence total PBDE uptake. Based on individual congeners, uptake of BDE 47 by snails was significantly reduced in the presence of microplastics. The diversity and composition of the snail microbiome was not significantly altered by the presence of PBDEs nor by the microplastics, singly or combined. Significant effects on a few individual operational taxonomic units (OTUs) occurred when comparing the highest PBDE concentration with the control treatment, but in the absence of microplastics only. Overall within these acute experiments, only subtle effects on weight loss and slight microbiome alterations occurred. These results therefore highlight that L. stagnalis are resilient to acute exposures to microplastics and PBDEs, and that microplastics are unlikely to influence HOC accumulation or the microbiome of this species over short timescales.
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Affiliation(s)
- Alice A Horton
- National Oceanography Centre, European Way, Southampton, SO14 SZH, UK; Centre for Ecology and Hydrology, Maclean Building, Benson Lane, Wallingford, Oxfordshire, OX10 8BB, UK; Institute of Environmental Sciences, University of Leiden, P.O. Box 9518, 2300 RA Leiden, the Netherlands.
| | - Lindsay K Newbold
- Centre for Ecology and Hydrology, Maclean Building, Benson Lane, Wallingford, Oxfordshire, OX10 8BB, UK
| | - Angela M Palacio-Cortés
- Zoology Department, Universidade Federal Do Paraná, Avenida Coronel Francisco H. Dos Santos, Jardim Das Americas, Curitiba, PR, 81531-981, Brazil
| | - David J Spurgeon
- Centre for Ecology and Hydrology, Maclean Building, Benson Lane, Wallingford, Oxfordshire, OX10 8BB, UK
| | - M Glória Pereira
- Centre for Ecology and Hydrology, Library Avenue, Lancaster Environment Centre, Lancaster, Bailrigg, LA1 4AP, UK
| | - Heather Carter
- Centre for Ecology and Hydrology, Library Avenue, Lancaster Environment Centre, Lancaster, Bailrigg, LA1 4AP, UK
| | - Hyun S Gweon
- National Oceanography Centre, European Way, Southampton, SO14 SZH, UK; School of Biological Sciences, University of Reading, Reading, RG6 6UR, UK
| | - Martina G Vijver
- Institute of Environmental Sciences, University of Leiden, P.O. Box 9518, 2300 RA Leiden, the Netherlands
| | - Peter M van Bodegom
- Institute of Environmental Sciences, University of Leiden, P.O. Box 9518, 2300 RA Leiden, the Netherlands
| | - Mario Antonio Navarro da Silva
- Zoology Department, Universidade Federal Do Paraná, Avenida Coronel Francisco H. Dos Santos, Jardim Das Americas, Curitiba, PR, 81531-981, Brazil
| | - Elma Lahive
- Centre for Ecology and Hydrology, Maclean Building, Benson Lane, Wallingford, Oxfordshire, OX10 8BB, UK
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Kaczmarek Ł, Roszkowska M, Poprawa I, Janelt K, Kmita H, Gawlak M, Fiałkowska E, Mioduchowska M. Integrative description of bisexual Paramacrobiotus experimentalis sp. nov. (Macrobiotidae) from republic of Madagascar (Africa) with microbiome analysis. Mol Phylogenet Evol 2020; 145:106730. [PMID: 31904510 DOI: 10.1016/j.ympev.2019.106730] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 12/31/2019] [Accepted: 12/31/2019] [Indexed: 12/26/2022]
Abstract
In a moss samples collected on Madagascar two populations of Paramacrobiotus experimentalis sp. nov. were found. Paramacrobiotus experimentalis sp. nov. with the presence of a microplacoid and areolatus type of eggs is similar to Pam. danielae, Pam. garynahi, Pam. hapukuensis, Pam. peteri, Pam. rioplatensis and Pam. savai, but it differs from them by some morphological and morphometric characters of the eggs. The p-distance between two COI haplotypes of Pam. experimentalis sp. nov. was 0.17%. In turn, the ranges of uncorrected genetic p-distances of all Paramacrobiotus species available in GenBank was from 18.27% (for Pam. lachowskae) to 25.26% (for Pam. arduus) with an average distance of 20.67%. We also found that Pam. experimentalis sp. nov. is bisexual. This observation was congruent on three levels: (i) morphological - specimen size dimorphism; (ii) structural (primary sexual characteristics) - females have an unpaired ovary while males have an unpaired testis and (iii) molecular - heterozygous and homozygous strains of the ITS-2 marker. Although symbiotic associations of hosts with bacteria (including endosymbiotic bacteria) are common in nature and these interactions exert various effects on the evolution, biology and reproductive ecology of hosts, there is still very little information on the bacterial community associated with tardigrades. To fill this gap and characterise the bacterial community of Pam. experimentalis sp. nov. populations and microbiome of its microhabitat, high throughput sequencing of the V3-V4 hypervariable regions in the bacterial 16S rRNA gene fragment was performed. The obtained 16S rRNA gene sequences ranged from 92,665 to 131,163. In total, 135 operational taxonomic units (OTUs) were identified across the rarefied dataset. Overall, both Pam. experimentalis sp. nov. populations were dominated by OTUs ascribed to the phylum Proteobacteria (89-92%) and Firmicutes (6-7%). In the case of samples from tardigrades' laboratory habitat, the most abundant bacterial phylum was Proteobacteria (51-90%) and Bacteroides (9-48%). In all compared microbiome profiles, only 16 of 137 OTUs were shared. We found also significant differences in beta diversity between the partly species-specific microbiome of Pam. experimentalis sp. nov. and its culturing environment. Two OTUs belonging to a putative bacterial endosymbiont were identified - Rickettsiales and Polynucleobacter. We also demonstrated that each bacterial community was rich in genes involved in membrane transport, amino acid metabolism, and carbohydrate metabolism.
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Affiliation(s)
- Łukasz Kaczmarek
- Department of Animal Taxonomy and Ecology, Faculty of Biology, Adam Mickiewicz University, Poznan, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland.
| | - Milena Roszkowska
- Department of Animal Taxonomy and Ecology, Faculty of Biology, Adam Mickiewicz University, Poznan, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland; Department of Bioenergetics, Faculty of Biology, Adam Mickiewicz University, Poznan, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland.
| | - Izabela Poprawa
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Bankowa 9, 40-007 Katowice, Poland.
| | - Kamil Janelt
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Bankowa 9, 40-007 Katowice, Poland
| | - Hanna Kmita
- Department of Bioenergetics, Faculty of Biology, Adam Mickiewicz University, Poznan, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland.
| | - Magdalena Gawlak
- The Institute of Plant Protection-National Research Institute, Węgorka 20, 60-318 Poznań, Poland.
| | - Edyta Fiałkowska
- Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland.
| | - Monika Mioduchowska
- Department of Genetics and Biosystematics, Faculty of Biology, University of Gdańsk, Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland.
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Li LH, Lv S, Lu Y, Bi DQ, Guo YH, Wu JT, Yue ZY, Mao GY, Guo ZX, Zhang Y, Tang YF. Spatial structure of the microbiome in the gut of Pomacea canaliculata. BMC Microbiol 2019; 19:273. [PMID: 31805864 PMCID: PMC6896589 DOI: 10.1186/s12866-019-1661-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Accepted: 11/22/2019] [Indexed: 01/27/2023] Open
Abstract
Background Gut microbes can contribute to their hosts in food digestion, nutrient absorption, and inhibiting the growth of pathogens. However, only limited studies have focused on the gut microbiota of freshwater snails. Pomacea canaliculata is considered one of the worst invasive alien species in the world. Elucidating the diversity and composition of the microbiota in the gut of P. canaliculata snails may be helpful for better understanding the widespread invasion of this snail species. In this study, the buccal masses, stomachs, and intestines were isolated from seven P. canaliculata snails. The diversity and composition of the microbiota in the three gut sections were then investigated based on high-throughput Illumina sequencing targeting the V3-V4 regions of the 16S rRNA gene. Results The diversity of the microbiota was highest in the intestine but lowest in the buccal mass. A total of 29 phyla and 111 genera of bacteria were identified in all of the samples. In general, Ochrobactrum, a genus of putative cellulose-degrading bacteria, was the most abundant (overall relative abundance: 13.6%), followed by Sediminibacterium (9.7%), Desulfovibrio (7.8%), an unclassified genus in the family Aeromonadaceae (5.4%), and Cloacibacterium (5.4%). The composition of the microbiota was diverse among the different gut sections. Ochrobactrum (relative abundance: 23.15% ± 7.92%) and Sediminibacterium (16.95 ± 5.70%) were most abundant in the stomach, an unclassified genus in the family Porphyromonadaceae (14.28 ± 7.29%) and Leptotrichia (8.70 ± 4.46%) were highest in the buccal mass, and two genera in the families Aeromonadaceae (7.55 ± 4.53%) and Mollicutes (13.47 ± 13.03%) were highest in the intestine. Conclusions The diversity and composition of the microbiome vary among different gut sections of P. canaliculata snails. Putative cellulose-degrading bacteria are enriched in the gut of P. canaliculata.
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Affiliation(s)
- Lan-Hua Li
- Health Shandong Collaborative Innovation Center for Major Social Risk Prediction and Management, School of Public Health and Management, Weifang Medical University, Weifang, 261053, People's Republic of China.,National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory of Parasite and Vector Biology, Ministry of Health, WHO Collaborating Center for Malaria, Schistosomiasis and Filariasis, Shanghai, 200025, People's Republic of China
| | - Shan Lv
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory of Parasite and Vector Biology, Ministry of Health, WHO Collaborating Center for Malaria, Schistosomiasis and Filariasis, Shanghai, 200025, People's Republic of China
| | - Yan Lu
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory of Parasite and Vector Biology, Ministry of Health, WHO Collaborating Center for Malaria, Schistosomiasis and Filariasis, Shanghai, 200025, People's Republic of China
| | - Ding-Qi Bi
- Health Shandong Collaborative Innovation Center for Major Social Risk Prediction and Management, School of Public Health and Management, Weifang Medical University, Weifang, 261053, People's Republic of China
| | - Yun-Hai Guo
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory of Parasite and Vector Biology, Ministry of Health, WHO Collaborating Center for Malaria, Schistosomiasis and Filariasis, Shanghai, 200025, People's Republic of China
| | - Jia-Tong Wu
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory of Parasite and Vector Biology, Ministry of Health, WHO Collaborating Center for Malaria, Schistosomiasis and Filariasis, Shanghai, 200025, People's Republic of China
| | - Zhi-Yuan Yue
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory of Parasite and Vector Biology, Ministry of Health, WHO Collaborating Center for Malaria, Schistosomiasis and Filariasis, Shanghai, 200025, People's Republic of China
| | - Guang-Yao Mao
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory of Parasite and Vector Biology, Ministry of Health, WHO Collaborating Center for Malaria, Schistosomiasis and Filariasis, Shanghai, 200025, People's Republic of China
| | - Zhong-Xin Guo
- Community Health Center of Beijing Normal University, Shanghai, 100875, People's Republic of China
| | - Yi Zhang
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory of Parasite and Vector Biology, Ministry of Health, WHO Collaborating Center for Malaria, Schistosomiasis and Filariasis, Shanghai, 200025, People's Republic of China.
| | - Yun-Feng Tang
- Health Shandong Collaborative Innovation Center for Major Social Risk Prediction and Management, School of Public Health and Management, Weifang Medical University, Weifang, 261053, People's Republic of China.
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Tong Q, Liu XN, Hu ZF, Ding JF, Bie J, Wang HB, Zhang JT. Effects of Captivity and Season on the Gut Microbiota of the Brown Frog ( Rana dybowskii). Front Microbiol 2019; 10:1912. [PMID: 31507549 PMCID: PMC6716059 DOI: 10.3389/fmicb.2019.01912] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 08/05/2019] [Indexed: 12/14/2022] Open
Abstract
The gut microbiota of amphibians is affected by exogenous and endogenous factors. We performed a comprehensive analysis using high-throughput sequencing technology and functional predictions and observed general changes in the gut microbiota of frogs in different growth stages, seasons, and growth environments. There were no significant differences in microbial richness and diversity between juvenile and adult wild frogs, between the summer and autumn groups of captive frogs, or between wild and captive frogs. There were significant differences in the gut microbiota community structure of Rana dybowskii between the summer and autumn groups of captive frogs and between wild and captive R. dybowskii, whereas the differences between juvenile and adult wild frogs were not significant. The dominant gut bacterial phyla in frogs from both captive and wild environments included Firmicutes, Bacteroidetes, Proteobacteria, and Actinobacteria. Linear discriminant effect size (LEfSe) analysis showed that Bacteroidetes and Firmicutes were significantly enriched in captive and wild R. dybowskii, respectively linear discriminant analysis (LDA > 4). The core operational taxonomical units (OTUs) that were found in >90% of all frogs tested encompassed 15 core OTUs. The captive frogs exhibited 15 core OTUs in addition to the above overall core microbiota, whereas the wild frogs exhibited 19 core OTUs in addition to the above overall core microbiota. Predictions made using Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt) suggested that eleven KEGG pathways, such as infectious diseases, immune system diseases, metabolism, metabolism of other amino acids, metabolism of cofactors and vitamins, metabolism of terpenoids and polyketides, neurodegenerative diseases, and transport and catabolism, were enriched in captive frogs. The relative abundance of several red-leg-syndrome-related pathogens increased significantly in captive frogs compared with that in wild frogs. To our knowledge, this is the first study on the effects of individual seasons and captivity on the gut microbiota of frogs.
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Affiliation(s)
- Qing Tong
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Xiao-Ning Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Zong-Fu Hu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Jia-Feng Ding
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Jia Bie
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Hong-Bin Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Jian-Tao Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
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Hochstein R, Zhang Q, Sadowsky MJ, Forbes VE. The deposit feeder Capitella teleta has a unique and relatively complex microbiome likely supporting its ability to degrade pollutants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 670:547-554. [PMID: 30909032 DOI: 10.1016/j.scitotenv.2019.03.255] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 03/12/2019] [Accepted: 03/17/2019] [Indexed: 06/09/2023]
Abstract
Capitella teleta is a sediment-dwelling marine polychaete that is often found in high densities in association with organic matter and pollutants. While C. teleta has been reported to transform a variety of aromatic hydrocarbons, the mechanisms by which degradation occurs are unknown. Moreover, there is continuing debate on the role of host and microbiota in degradation activity. The aims of this study were to characterize the gut microbiome of C. teleta and to identify microbiota that could potentially play a role in degradation of organic matter and aromatic hydrocarbons. Sequencing analysis of the 16S rRNA genes from the intestinal tracts of adult worms revealed a unique microbiome that was distinct from that of the worm's sediment food source and fecal pellets. About 66% of the 775 identified OTUs from the C. teleta gut microbiome were found to be unique to the worm and displayed high inter-individual variability. The gut microbiome was dominated by members of the genera Arcobacter, Pseudoalteromonas, Methylobacterium, and Propionibacterium. Functional analyses of microbiota revealed that hydrocarbon treatment led to a proliferation of gene classes involved in chemoheterotrophy and aromatic compound degradation. Of the 18 most abundant taxa identified, 50% were members of genera containing hydrocarbon (PAH)-degrading members, including Acinetobacter, Thalassotalea, and Achromobacter. Data obtained in this study will be useful to understand the biology of this marine polychaete and to elucidate the role that gut bacteria play in worm catabolism and the transformation of sediment organic pollutants.
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Affiliation(s)
- Rebecca Hochstein
- Department of Ecology, Evolution, and Behavior, University of Minnesota, United States of America; BioTechnology Institute, University of Minnesota, United States of America
| | - Qian Zhang
- BioTechnology Institute, University of Minnesota, United States of America
| | - Michael J Sadowsky
- BioTechnology Institute, University of Minnesota, United States of America; Department of Soil, Water and Climate, University of Minnesota, United States of America; Department of Plant and Microbial Biology, University of Minnesota, United States of America.
| | - Valery E Forbes
- Department of Ecology, Evolution, and Behavior, University of Minnesota, United States of America.
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