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Spatial variation in microbial communities associated with sea-ice algae in Commonwealth Bay, East Antarctica.
Vadillo Gonzalez, Sebastian; Clark, Graeme F; Johnston, Emma L; Turney, Chris S M; Fogwill, Christopher J; Steinberg, Peter D; Marzinelli, Ezequiel M.
Afiliación
  • Vadillo Gonzalez S; The University of Sydney, School of Life and Environmental Sciences, Sydney, NSW 2006, Australia.
  • Clark GF; Sydney Institute of Marine Science, 19 Chowder Bay Road, Mosman, NSW 2088, Australia.
  • Johnston EL; School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, NSW 2025, Australia.
  • Turney CSM; School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, NSW 2025, Australia.
  • Fogwill CJ; School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, NSW 2025, Australia.
  • Steinberg PD; University of Technology Sydney, 15 Broadway, Ultimo, NSW, 2007, Australia.
  • Marzinelli EM; School of Geography, Geology and the Environment, Keele University, Keele ST5 5BG, UK.
Microbiology (Reading) ; 168(4)2022 04.
Article en En | MEDLINE | ID: mdl-35416764
Antarctic sea-ice forms a complex and dynamic system that drives many ecological processes in the Southern Ocean. Sea-ice microalgae and their associated microbial communities are understood to influence nutrient flow and allocation in marine polar environments. Sea-ice microalgae and their microbiota can have high seasonal and regional (>1000 km2) compositional and abundance variation, driven by factors modulating their growth, symbiotic interactions and function. In contrast, our knowledge of small-scale variation in these communities is limited. Understanding variation across multiple scales and its potential drivers is critical for informing on how multiple stressors impact sea-ice communities and the functions they provide. Here, we characterized bacterial communities associated with sea-ice microalgae and the potential drivers that influence their variation across a range of spatial scales (metres to >10 kms) in a previously understudied area in Commonwealth Bay, East Antarctica where anomalous events have substantially and rapidly expanded local sea-ice coverage. We found a higher abundance and different composition of bacterial communities living in sea-ice microalgae closer to the shore compared to those further from the coast. Variation in community structure increased linearly with distance between samples. Ice thickness and depth to the seabed were found to be poor predictors of these communities. Further research on the small-scale environmental drivers influencing these communities is needed to fully understand how large-scale regional events can affect local function and ecosystem processes.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Microalgas / Microbiota Tipo de estudio: Prognostic_studies / Risk_factors_studies Idioma: En Revista: Microbiology (Reading) Asunto de la revista: MICROBIOLOGIA Año: 2022 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Microalgas / Microbiota Tipo de estudio: Prognostic_studies / Risk_factors_studies Idioma: En Revista: Microbiology (Reading) Asunto de la revista: MICROBIOLOGIA Año: 2022 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Reino Unido