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Methanogenic archaea associated to Microcystis sp. in field samples and in culture
- Cyanobacterial mass developments impact the community composition of heterotrophic microorganisms with far-reaching consequences for biogeochemical and energy cycles of freshwater ecosystems including reservoirs. Here we sought to evaluate the temporal stability of methanogenic archaea in the water column and further scrutinize their associations with cyanobacteria. Monthly samples were collected from October 2009 to December 2010 in hypereutrophic Pampulha reservoir with permanently blooming cyanobacteria, and from January to December 2011 in oligotrophic Volta Grande reservoir with only sporadic cyanobacteria incidence. The presence of archaea in cyanobacterial cultures was investigated by screening numerous strains of Microcystis spp. from these reservoirs as well as from lakes in Europe, Asia, and North-America. We consistently determined the occurrence of archaea, in particular methanogenic archaea, in both reservoirs throughout the year. However, archaea were only associated with two strains (Microcystis sp. UFMG 165 and UFMGCyanobacterial mass developments impact the community composition of heterotrophic microorganisms with far-reaching consequences for biogeochemical and energy cycles of freshwater ecosystems including reservoirs. Here we sought to evaluate the temporal stability of methanogenic archaea in the water column and further scrutinize their associations with cyanobacteria. Monthly samples were collected from October 2009 to December 2010 in hypereutrophic Pampulha reservoir with permanently blooming cyanobacteria, and from January to December 2011 in oligotrophic Volta Grande reservoir with only sporadic cyanobacteria incidence. The presence of archaea in cyanobacterial cultures was investigated by screening numerous strains of Microcystis spp. from these reservoirs as well as from lakes in Europe, Asia, and North-America. We consistently determined the occurrence of archaea, in particular methanogenic archaea, in both reservoirs throughout the year. However, archaea were only associated with two strains (Microcystis sp. UFMG 165 and UFMG 175) recently isolated from these reservoirs. These findings do not implicate archaea in the occurrence of methane in the epilimnion of inland waters, but rather serve to highlight the potential of microhabitats associated with particles, including phytoplankton, to shelter unique microbial communities.…
| Author details: | A. M. M. Batista, Jason Nicholas WoodhouseORCiD, Hans-Peter GrossartORCiDGND, A. Giani |
|---|---|
| DOI: | https://doi.org/10.1007/s10750-018-3655-3 |
| ISSN: | 0018-8158 |
| ISSN: | 1573-5117 |
| Title of parent work (English): | Hydrobiologia : acta hydrobiologica, hydrographica, limnologica et protistologica |
| Publisher: | Springer |
| Place of publishing: | Dordrecht |
| Publication type: | Article |
| Language: | English |
| Date of first publication: | 2018/05/23 |
| Publication year: | 2018 |
| Release date: | 2021/03/30 |
| Tag: | Bacterial community composition; Cyanobacteria; Methanogenic archaea; Microcystis sp; Tropical reservoir |
| Volume: | 831 |
| Issue: | 1 |
| Number of pages: | 10 |
| First page: | 163 |
| Last Page: | 172 |
| Funding institution: | CAPES (Coordenacao Aperfeicoamento do Pessoal Docente-PDSE program); CEMIG (Companhia Eletrica de Minas Gerais); FAPEMIG (Fundacao de Amparo a Pesquisa de Minas Gerais)Minas Gerais State Research Foundation (FAPEMIG); DFG (Deutsche Forschungsgemeinschaft)German Research Foundation (DFG) [GR 1540/20-1, 21-1] |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Biochemie und Biologie |
| DDC classification: | 5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie |
| Peer review: | Referiert |
