Seismic events as potential drivers of the microbial community structure and evolution in a paleo-ocean analog
Anthropogenic perturbations profoundly affect aquatic ecosystem microbiomes and associated ecological functions. Comparatively, the effects of geological stresses on microbiome composition and stability remain poorly explored. Here, we monitored the archaeal, bacterial and microeukaryotes community structure over an 8-years period in Lake Dziani Dzaha (Comoros archipelago), that experienced a major earthquake swarm mid-survey, providing a rare opportunity to investigate the aftermaths of seismo-volcanic events on microbiome. Our results revealed the sensitivity of the aquatic microbial community towards seismicity and associated environmental changes, that triggered a major shift in microbiome composition and abundance with persisting consequences on structure and richness of the microbial ecosystem. Our findings suggest that seismological perturbations could be major drivers of the microbial community structure in aquatic environments through cascading effects on environmental conditions. Over geological time scales, such events may have been significant yet underestimated forces driving diversification and evolution of microbial communities. An 8-year-long observational study of Lake Dziani Dzaha in Mayotte, an analog for the Proterozoic ocean, suggests seismo-volcanic events can perturb geochemical variables and trigger shifts in the composition and structure of the microbiome.
Authors
- Mylène Hugoni (ORCID: https://orcid.org/0000-0002-2430-1057)
- Hélène Agogué (ORCID: https://orcid.org/0000-0002-1078-0130)
- Christophe Leboulanger (ORCID: https://orcid.org/0000-0001-5836-4294)
- Adrien Vigneron (ORCID: https://orcid.org/0000-0003-3552-8369)
- Sébastien Duperron (ORCID: https://orcid.org/0000-0002-6422-6821)
- Magali Ader (ORCID: https://orcid.org/0000-0002-9239-1509)
- Claire Carré
- Patrice Got (ORCID: https://orcid.org/0000-0001-7528-0770)
- Philippe Oger (ORCID: https://orcid.org/0000-0001-6298-6870)
- Marc Troussellier (ORCID: https://orcid.org/0000-0003-3890-063X)
- Cécile Roques
- Didier Jézéquel (ORCID: https://orcid.org/0000-0002-1983-9899)
- Cécile Bernard (ORCID: https://orcid.org/0000-0001-7032-3989)
- Lilian A. Cloarec (ORCID: https://orcid.org/0009-0002-2986-1771)
- Alexis Groleau
Institutions
- Université Claude Bernard Lyon 1 (FR)
- Centre National de la Recherche Scientifique (FR)
- Institut de physique du globe de Paris (FR)
- Ifremer (FR)
- Institut Universitaire de France (FR)
- Université de Montpellier (FR)
- Université Paris Cité (FR)
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (FR)
- LIttoral ENvironnement et Sociétés (FR)
- Laboratoire de Microbiologie, Adaptation et Pathogénie (FR)
- Molécules de Communication et Adaptation des Micro-organismes (FR)
- Marine Biodiversity Exploitation and Conservation (FR)
- Institut de Recherche pour le Développement (FR)
- Centre Alpin de Recherche sur les Réseaux Trophiques et les Ecosystèmes Limniques (FR)
- Institut National des Sciences Appliquées de Lyon (FR)
- La Rochelle Université (FR)
Publication Details
- Journal
- Communications Earth & Environment
- Published
- 2024-09-13
- DOI
- https://doi.org/10.1038/s43247-024-01615-0
- Citations
- 2
- Primary Topic
- Microbial Community Ecology and Physiology
- Type
- article
- Field-Weighted Citation Impact
- 0.92
Funders
- Agence Nationale de la Recherche
- Institut Universitaire de France