Seasonal marine microorganisms change neighbours under contrasting environmental conditions

© 2021 Society for Applied Microbiology and John Wiley & Sons Ltd..

Marine picoplankton contribute to global carbon sequestration and nutrient recycling. These processes are directly related to the composition of communities, which in turn depends on microbial interactions and environmental forcing. Under regular seasonal cycles, marine communities show strong predictable patterns of annual re-occurrences, but little is known about the effect of environmental perturbation on their organization. The aim of our study was to investigate the co-occurrence patterns of planktonic picoeukaryote, bacteria and archaea under contrasting environmental conditions. The study was designed to have high sampling frequency that could match both the biological rhythm of marine microbes and the short time scale of extreme weather events. Our results show that microbial networks changed from year to year depending on conditions. In addition, individual taxa became less interconnected and changed neighbours, which revealed an unfaithful relationship between marine microorganisms. This unexpected pattern suggests possible switches between organisms that have similar specific functions, or hints at the presence of organisms that share similar environmental niches without interacting. Despite the observed annual changes, the time series showed re-occurring communities that appear to recover from perturbations. Changing co-occurrence patterns between marine microorganisms may allow the long-term stability of ecosystems exposed to contrasting meteorological events.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:23

Enthalten in:

Environmental microbiology - 23(2021), 5 vom: 25. Mai, Seite 2592-2604

Sprache:

Englisch

Beteiligte Personen:

Lambert, Stefan [VerfasserIn]
Lozano, Jean-Claude [VerfasserIn]
Bouget, François-Yves [VerfasserIn]
Galand, Pierre E [VerfasserIn]

Links:

Volltext

Themen:

Journal Article
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 15.10.2021

Date Revised 15.10.2021

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1111/1462-2920.15482

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM32316496X