Spatial patterns of microbial communities across surface waters of the Great Barrier Reef.

Autor:	Frade PR; Centre of Marine Sciences, University of Algarve, Faro, Portugal. pedro.frade@nhm-wien.ac.at.; College of Science and Engineering, James Cook University, Townsville, QLD, Australia. pedro.frade@nhm-wien.ac.at., Glasl B; College of Science and Engineering, James Cook University, Townsville, QLD, Australia.; Australian Institute of Marine Science, Townsville, QLD, Australia., Matthews SA; Australian Institute of Marine Science, Townsville, QLD, Australia.; ARC Centre of Excellence in Coral Reef Studies, James Cook University, Townsville, QLD, Australia., Mellin C; Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia.; The Environment Institute and School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia., Serrão EA; Centre of Marine Sciences, University of Algarve, Faro, Portugal., Wolfe K; Marine Spatial Ecology Lab, School of Biological Sciences, University of Queensland, St Lucia, QLD, Australia.; ARC Centre of Excellence for Coral Reef Studies, University of Queensland, St Lucia, QLD, Australia., Mumby PJ; Marine Spatial Ecology Lab, School of Biological Sciences, University of Queensland, St Lucia, QLD, Australia.; ARC Centre of Excellence for Coral Reef Studies, University of Queensland, St Lucia, QLD, Australia., Webster NS; Australian Institute of Marine Science, Townsville, QLD, Australia.; Australian Centre for Ecogenomics, University of Queensland, Brisbane, QLD, Australia., Bourne DG; College of Science and Engineering, James Cook University, Townsville, QLD, Australia.; Australian Institute of Marine Science, Townsville, QLD, Australia.
Jazyk:	angličtina
Zdroj:	Communications biology [Commun Biol] 2020 Aug 14; Vol. 3 (1), pp. 442. Date of Electronic Publication: 2020 Aug 14.
DOI:	10.1038/s42003-020-01166-y
Abstrakt:	Microorganisms are fundamental drivers of biogeochemical cycling, though their contribution to coral reef ecosystem functioning is poorly understood. Here, we infer predictors of bacterioplankton community dynamics across surface-waters of the Great Barrier Reef (GBR) through a meta-analysis, combining microbial with environmental data from the eReefs platform. Nutrient dynamics and temperature explained 41.4% of inter-seasonal and cross-shelf variation in bacterial assemblages. Bacterial families OCS155, Cryomorphaceae, Flavobacteriaceae, Synechococcaceae and Rhodobacteraceae dominated inshore reefs and their relative abundances positively correlated with nutrient loads. In contrast, Prochlorococcaceae negatively correlated with nutrients and became increasingly dominant towards outershelf reefs. Cyanobacteria in Prochlorococcaceae and Synechococcaceae families occupy complementary cross-shelf biogeochemical niches; their abundance ratios representing a potential indicator of GBR nutrient levels. One Flavobacteriaceae-affiliated taxa was putatively identified as diagnostic for ecosystem degradation. Establishing microbial observatories along GBR environmental gradients will facilitate robust assessments of microbial contributions to reef health and inform tipping-points in reef condition.
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu