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Title: Nutrient supply controls the linkage between species abundance and ecological interactions in marine bacterial communities

Journal Article · · Nature Communications

Nutrient scarcity is pervasive for natural microbial communities, affecting species reproduction and co-existence. However, it remains unclear whether there are general rules of how microbial species abundances are shaped by biotic and abiotic factors. Here we show that the ribosomal RNA gene operon (rrn) copy number, a genomic trait related to bacterial growth rate and nutrient demand, decreases from the abundant to the rare biosphere in the nutrient-rich coastal sediment but exhibits the opposite pattern in the nutrient-scarce pelagic zone of the global ocean. Both patterns are underlain by positive correlations between community-level rrn copy number and nutrients. Furthermore, inter-species co-exclusion inferred by negative network associations is observed more in coastal sediment than in ocean water samples. Nutrient manipulation experiments yield effects of nutrient availability on rrn copy numbers and network associations that are consistent with our field observations. Based on these results, we propose a “hunger games” hypothesis to define microbial species abundance rules using the rrn copy number, ecological interaction, and nutrient availability.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
China National Key R&D Program; China Postdoctoral Science Foundation; Hainan Key Laboratory of Tropical Marine Biotechnology Open Fund; National Natural Science Foundation of China; USDOE
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
2470923
Journal Information:
Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 13; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (55)

An introduction to niche construction theory journal February 2016
Trophic Interactions and the Drivers of Microbial Community Assembly journal October 2020
Dynamics of coastal bacterial community average ribosomal RNA operon copy number reflect its response and sensitivity to ammonium and phosphate journal May 2020
Evolutionary game theory: Theoretical concepts and applications to microbial communities journal October 2010
Spatio-temporal benthic biodiversity patterns and pollution pressure in three Mediterranean touristic ports journal May 2018
Sediment bacterial communities associated with environmental factors in Intermittently Closed and Open Lakes and Lagoons (ICOLLs) journal November 2019
The Ecology and Evolution of Microbial Competition journal October 2016
Long-term successional dynamics of microbial association networks in anaerobic digestion processes journal November 2016
Diversity and dynamics of rare and of resident bacterial populations in coastal sands journal October 2011
Bacterial assembly and temporal dynamics in activated sludge of a full-scale municipal wastewater treatment plant journal September 2014
Decreases in average bacterial community rRNA operon copy number during succession journal November 2015
Microbial functional trait of rRNA operon copy numbers increases with organic levels in anaerobic digesters journal August 2017
Shifts in growth strategies reflect tradeoffs in cellular economics journal January 2009
A communal catalogue reveals Earth’s multiscale microbial diversity journal November 2017
UPARSE: highly accurate OTU sequences from microbial amplicon reads journal August 2013
Exploiting rRNA operon copy number to investigate bacterial reproductive strategies journal September 2016
Bacterial evolution: Genomics of metabolic trade-offs journal October 2016
Ecology and exploration of the rare biosphere journal March 2015
Stochasticity constrained by deterministic effects of diet and age drive rumen microbiome assembly dynamics journal April 2020
Positive associations among rare species and their persistence in ecological assemblages journal December 2019
Strength of species interactions determines biodiversity and stability in microbial communities journal February 2020
Author Correction: Global diversity and biogeography of bacterial communities in wastewater treatment plants journal November 2019
Metabolic cooperation and spatiotemporal niche partitioning in a kefir microbial community journal January 2021
Open science resources for the discovery and analysis of Tara Oceans data journal May 2015
Biological stoichiometry from genes to ecosystems journal November 2000
Microbial diversity in the deep sea and the underexplored "rare biosphere" journal July 2006
The genomic basis of trophic strategy in marine bacteria journal September 2009
Ecology of the rare microbial biosphere of the Arctic Ocean journal December 2009
Global patterns of 16S rRNA diversity at a depth of millions of sequences per sample journal June 2010
Activity of abundant and rare bacteria in a coastal ocean journal July 2011
Biological composition and microbial dynamics of sinking particulate organic matter at abyssal depths in the oligotrophic open ocean journal May 2019
Cooperation mitigates diversity loss in a spatially expanding microbial population journal October 2019
Conceptual Synthesis in Community Ecology journal June 2010
rrnDB: improved tools for interpreting rRNA gene abundance in bacteria and archaea and a new foundation for future development journal November 2014
Understanding the evolution of interspecies interactions in microbial communities journal March 2020
Rare but active taxa contribute to community dynamics of benthic biofilms in glacier-fed streams: Benthic biofilms in glacier-fed streams journal February 2014
Rare taxa have potential to make metabolic contributions in enhanced biological phosphorus removal ecosystems: EBPR microbiome activity and dynamics journal May 2015
Primer selection impacts specific population abundances but not community dynamics in a monthly time-series 16S rRNA gene amplicon analysis of coastal marine bacterioplankton: Primer choice effects on populations, communities journal April 2018
Stability of soil microbial structure and activity depends on microbial diversity: Linking microbial diversity and stability journal December 2013
Co‐occurrence is not evidence of ecological interactions journal May 2020
Elemental stoichiometry of freshwater fishes in relation to phylogeny, allometry and ecology journal January 2007
N : P stoichiometry and protein : RNA ratios in vascular plants: an evaluation of the growth-rate hypothesis journal August 2009
The ecology of the microbiome: Networks, competition, and stability journal November 2015
Coordination between microbiota and root endodermis supports plant mineral nutrient homeostasis journal November 2020
rRNA Operon Copy Number Reflects Ecological Strategies of Bacteria journal April 2000
Phylogenetic Molecular Ecological Network of Soil Microbial Communities in Response to Elevated CO2 journal July 2011
SAR11 Bacteria: The Most Abundant Plankton in the Oceans journal January 2017
The Rare Bacterial Biosphere journal January 2012
Phylogenies and Community Ecology journal November 2002
Exploring Microbial Diversity and Taxonomy Using SSU rRNA Hypervariable Tag Sequencing journal November 2008
The Variability of the 16S rRNA Gene in Bacterial Genomes and Its Consequences for Bacterial Community Analyses journal February 2013
Lifestyles of rarity: understanding heterotrophic strategies to inform the ecology of the microbial rare biosphere journal December 2016
Biological stoichiometry of Daphnia growth: An ecophysiological test of the growth rate hypothesis journal May 2004
Ecological stoichiometry: An elementary approach using basic principles journal November 2013
Positive associations among rare species and their persistence in ecological assemblages dataset January 2019