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Bin X, Wang P, Shen Y, Xiang X, Jafir M, Wan X. Investigation of Fungal Community Structure in the Gut of the Stag Beetle Dorcus hopei (Coleoptera; Lucanidae): Comparisons Among Developmental Stages. MICROBIAL ECOLOGY 2024; 87:70. [PMID: 38740585 DOI: 10.1007/s00248-024-02379-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 04/08/2024] [Indexed: 05/16/2024]
Abstract
Stag beetles, recognized as common saproxylic insects, are valued for their vibrant coloration and distinctive morphology. These beetles play a crucial ecological role in decomposition and nutrient cycling, serving as a vital functional component in ecosystem functioning. Although previous studies have confirmed that stag beetles are predominantly fungivores, the fluctuations in their intestinal fungal communities at different developmental stages remain poorly understood. In the current study, high-throughput sequencing was employed to investigate the dynamic changes within intestinal fungal communities at various developmental stages in the stag beetle Dorcus hopei. Results showed that microbial diversity was higher during the larval stage than during the pupal and adult stages. Furthermore, significant differences were identified in the composition of the intestinal fungal communities across the larval, pupal, and adult stages, suggesting that developmental transitions may be crucial factors contributing to variations in fungal community composition and diversity. Dominant genera included Candida, Scheffersomyces, Phaeoacremonium, and Trichosporon. Functional predictions indicated a greater diversity and relative abundance of endosymbiotic fungi in the larval gut, suggesting a potential dependency of larvae on beneficial gut fungi for nutrient acquisition. Additionally, the application of abundance-based β-null deviation and niche width analyses revealed that the adult gut exerted a stronger selection pressure on its fungal community, favoring certain taxa. This selection process culminates in a more robust co-occurrence network of fungal communities within the adult gut, thereby enhancing their adaptability to environmental fluctuations. This study advances our understanding of the intestinal fungal community structure in stag beetles, providing a crucial theoretical foundation for the development of saproxylic beetle resources, biomass energy utilization, plastic degradation strategies, and beetle conservation efforts.
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Affiliation(s)
- Xiaoyan Bin
- School of Resources and Environmental Engineering, Anhui University, Hefei, 230601, China
- Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, Hefei, 230601, China
| | - Pan Wang
- School of Resources and Environmental Engineering, Anhui University, Hefei, 230601, China
- Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, Hefei, 230601, China
| | - Yagang Shen
- School of Resources and Environmental Engineering, Anhui University, Hefei, 230601, China
- Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, Hefei, 230601, China
| | - Xingjia Xiang
- School of Resources and Environmental Engineering, Anhui University, Hefei, 230601, China
- Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, Hefei, 230601, China
| | - Muhammad Jafir
- School of Resources and Environmental Engineering, Anhui University, Hefei, 230601, China
- Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, Hefei, 230601, China
| | - Xia Wan
- School of Resources and Environmental Engineering, Anhui University, Hefei, 230601, China.
- Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, Hefei, 230601, China.
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Bosch J, Dobbler PT, Větrovský T, Tláskal V, Baldrian P, Brabcová V. Decomposition of Fomes fomentatius fruiting bodies - transition of healthy living fungus into a decayed bacteria-rich habitat is primarily driven by Arthropoda. FEMS Microbiol Ecol 2024; 100:fiae044. [PMID: 38640440 PMCID: PMC11030162 DOI: 10.1093/femsec/fiae044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 03/06/2024] [Accepted: 03/28/2024] [Indexed: 04/21/2024] Open
Abstract
Fomes fomentarius is a widespread, wood-rotting fungus of temperate, broadleaved forests. Although the fruiting bodies of F. fomentarius persist for multiple years, little is known about its associated microbiome or how these recalcitrant structures are ultimately decomposed. Here we used metagenomics and metatranscriptomics to analyse the microbial community associated with healthy living and decomposing F. fomentarius fruiting bodies to assess the functional potential of the fruiting body-associated microbiome and to determine the main players involved in fruiting body decomposition. F. fomentarius sequences in the metagenomes were replaced by bacterial sequences as the fruiting body decomposed. Most CAZymes expressed in decomposing fruiting bodies targeted components of the fungal cell wall with almost all chitin-targeting sequences, plus a high proportion of beta-glucan-targeting sequences, belonging to Arthropoda. We suggest that decomposing fruiting bodies of F. fomentarius represent a habitat rich in bacteria, while its decomposition is primarily driven by Arthropoda. Decomposing fruiting bodies thus represent a specific habitat supporting both microorganisms and microfauna.
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Affiliation(s)
- Jason Bosch
- Laboratory of Environmental Microbiology, Institute of Microbiology of the Czech Academy of Sciences, 142 00 Prague, Czechia
| | - Priscila Thiago Dobbler
- Laboratory of Environmental Microbiology, Institute of Microbiology of the Czech Academy of Sciences, 142 00 Prague, Czechia
| | - Tomáš Větrovský
- Laboratory of Environmental Microbiology, Institute of Microbiology of the Czech Academy of Sciences, 142 00 Prague, Czechia
| | - Vojtěch Tláskal
- Laboratory of Environmental Microbiology, Institute of Microbiology of the Czech Academy of Sciences, 142 00 Prague, Czechia
| | - Petr Baldrian
- Laboratory of Environmental Microbiology, Institute of Microbiology of the Czech Academy of Sciences, 142 00 Prague, Czechia
| | - Vendula Brabcová
- Laboratory of Environmental Microbiology, Institute of Microbiology of the Czech Academy of Sciences, 142 00 Prague, Czechia
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Integrative Insight into Relationships between Florivorous Thrips Haplothrips leucanthemi and H. niger (Insecta, Thysanoptera). INSECTS 2022; 13:insects13030279. [PMID: 35323577 PMCID: PMC8950692 DOI: 10.3390/insects13030279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/07/2022] [Accepted: 03/08/2022] [Indexed: 11/17/2022]
Abstract
Haplothrips niger is recognized as a parthenogenetic form of H. leucanthemi and is also considered to be a pest in clover-seed plantations. On the contrary, some researchers highlight the distinctiveness of H. niger and H. leucanthemi. Taking into account these two points of view, as well as the lack of molecular studies investigating the relationship between the mentioned thrips, we decided to perform analyses of both mitochondrial (COI) and nuclear markers (28S and ITS2) to determine the genetic diversity of H. leucanthemi and H. niger. Additionally, as a part of an integrative approach, we determined and analyzed their microbiota profiles, based on high-throughput 16S rRNA gene sequencing. The results of the molecular analyses revealed high intraspecific diversity of H. leucanthemi and did not support the distinctiveness of H. niger. The identified microbiota profiles were similar in both species and the performed analyses also did not support the distinctiveness of H. niger. Significant differences were, in turn, observed between H. leucanthemi and H. niger larvae. Moreover, two known endosymbiotic bacteria were found in the analyzed microbiota profiles (i.e., Wolbachia and Rickettsia). Nevertheless, these symbionts were not predominantly found in the bacterial communities that are associated with H. niger and thus, its impact on the parthenogenetic mode of its reproduction seems less likely.
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Wielkopolan B, Krawczyk K, Szabelska-Beręsewicz A, Obrępalska-Stęplowska A. The structure of the cereal leaf beetle (Oulema melanopus) microbiome depends on the insect's developmental stage, host plant, and origin. Sci Rep 2021; 11:20496. [PMID: 34650106 PMCID: PMC8516949 DOI: 10.1038/s41598-021-99411-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 09/24/2021] [Indexed: 01/04/2023] Open
Abstract
Cereal leaf beetle (CLB, Oulema melanopus, Coleoptera, Chrysomelidae) is a serious agricultural pest that causes considerable damages to agricultural production. The aim of this study was to characterize the bacterial communities associated with larvae and imagoes of CLB collected from various cereal host species and locations. The bacterial profile was characterized by 16S rRNA gene sequencing at the V3-V4 hypervariable region. Using taxonomy-based analysis, the bacterial community of CLB containing 16 phyla, 26 classes, 49 orders, 78 families, 94 genera, and 63 species of bacteria was identified. The abundance of Wolbachia, Rickettsia, and Lactococcus genus was significantly higher in CLB imagoes than in larvae. Statistical analysis confirmed that the bacterial community of the larvae is more diverse in comparison to imagoes and that insects collected from spring barley and wheat are characterized by a much higher biodiversity level of bacterial genera and species than insects collected from other cereals. Obtained results indicated that the developmental stage, the host plant, and the insect's sampling location affected the CLB's microbiome. Additionally, the CLB core microbiome was determined. It consists of 2 genera (Wolbachia and Rickettsia) shared by at least 90% tested CLB insects, regardless of the variables analysed.
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Affiliation(s)
- Beata Wielkopolan
- Department of Monitoring and Signaling of Agrophages, Institute of Plant Protection-National Research Institute, 20 Węgorka St, 60-318, Poznan, Poland
| | - Krzysztof Krawczyk
- Department of Molecular Biology and Biotechnology, Institute of Plant Protection-National Research Institute, 20 Węgorka St, 60-318, Poznan, Poland
| | - Alicja Szabelska-Beręsewicz
- Department of Mathematical and Statistical Methods, Poznań University of Life Sciences, 28 Wojska Polskiego St, 60-624, Poznan, Poland
| | - Aleksandra Obrępalska-Stęplowska
- Department of Molecular Biology and Biotechnology, Institute of Plant Protection-National Research Institute, 20 Węgorka St, 60-318, Poznan, Poland.
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Brentassi ME, Medina R, de la Fuente D, Franco ME, Toledo AV, Saparrat MC, Balatti PA. Endomycobiome associated with females of the planthopper Delphacodes kuscheli (Hemiptera: Delphacidae): A metabarcoding approach. Heliyon 2020; 6:e04634. [PMID: 32904272 PMCID: PMC7452442 DOI: 10.1016/j.heliyon.2020.e04634] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/09/2020] [Accepted: 08/03/2020] [Indexed: 12/22/2022] Open
Abstract
A metabarcoding approach was performed aimed at identifying fungi associated with Delphacodes kuscheli (Hemiptera: Delphacidae), the main vector of “Mal de Río Cuarto” disease in Argentina. A total of 91 fungal genera were found, and among them, 24 were previously identified for Delphacidae. The detection of fungi that are frequently associated with the phylloplane or are endophytes, as well as their presence in digestive tracts of other insects, suggest that feeding might be an important mechanism of their horizontal transfer in planthoppers. This study draws the baseline for future research regarding mutualistic associations present in D. kuscheli as well as their physiological role in the life cycle of this important pest that might lead to developing new management strategies to keep insects populations under control.
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Affiliation(s)
- María E Brentassi
- División Entomología, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Buenos Aires, Argentina.,Comisión de Investigaciones Científicas de la Provincia de Buenos Aires (CIC), Buenos Aires, Argentina
| | - Rocío Medina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.,Centro de Investigaciones de Fitopatología (CIDEFI), Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata, Buenos Aires, Argentina
| | - Daniela de la Fuente
- División Entomología, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Buenos Aires, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Mario Ee Franco
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.,Centro de Investigaciones de Fitopatología (CIDEFI), Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata, Buenos Aires, Argentina
| | - Andrea V Toledo
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.,Centro de Investigaciones de Fitopatología (CIDEFI), Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata, Buenos Aires, Argentina
| | - Mario Cn Saparrat
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.,Instituto de Fisiología Vegetal (INFIVE), Universidad Nacional de La Plata, Buenos Aires, Argentina.,Instituto de Botánica Carlos Spegazzini, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Buenos Aires, Argentina.,Cátedra de Microbiología Agrícola, Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata, Buenos Aires, Argentina
| | - Pedro A Balatti
- Comisión de Investigaciones Científicas de la Provincia de Buenos Aires (CIC), Buenos Aires, Argentina.,Centro de Investigaciones de Fitopatología (CIDEFI), Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata, Buenos Aires, Argentina.,Cátedra de Microbiología Agrícola, Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata, Buenos Aires, Argentina
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Kaczmarczyk-Ziemba A, Zagaja M, Wagner GK, Pietrykowska-Tudruj E, Staniec B. The microbiota of the Lasius fuliginosus – Pella laticollis myrmecophilous interaction. THE EUROPEAN ZOOLOGICAL JOURNAL 2020. [DOI: 10.1080/24750263.2020.1844322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Affiliation(s)
- A. Kaczmarczyk-Ziemba
- Department of Genetics and Biosystematics, Faculty of Biology, University of Gdansk, Gdansk, Poland
| | - M. Zagaja
- Isobolographic Analysis Laboratory, Institute of Rural Health, Lublin, Poland
| | - G. K. Wagner
- Department of Zoology and Nature Protection, Maria Curie-Sklodowska University, Lublin, Poland
| | - E. Pietrykowska-Tudruj
- Department of Zoology and Nature Protection, Maria Curie-Sklodowska University, Lublin, Poland
| | - B. Staniec
- Department of Zoology and Nature Protection, Maria Curie-Sklodowska University, Lublin, Poland
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