Cyanobacterial Community Composition and Bacteria-Bacteria Interactions Promote the Stable Occurrence of Particle-Associated Bacteria

Frontiers in Microbiology
Jason N WoodhouseBrett Anthony Neilan

Abstract

Within meso/eutrophic freshwater ecosystems the dominance of cyanobacterial blooms during summer months has substantial impacts on ecosystem function with the production of toxins and subsequent induction of hypoxia altering food web structures and biogeochemical cycles. Cyanobacterial aggregates are extensively colonized by heterotrophic bacteria that provide the cyanobacteria with key nutrients and contribute towards remineralisation of organic matter. Here we sampled from five sites within a shallow eutrophic pond over a 6 months period, relating changes in the abundance of particle-associated heterotrophic taxa to phytoplankton abundance, toxin gene copies and physiochemical properties. The abundance of a majority of particle-associated bacteria were stable, in that they persisted despite perturbation. Cyanobacterial species abundance more likely correlated with stable rather than unstable bacteria and unstable bacteria were associated with allochthonous (terrestrial) organic matter. The occurrence of the most stable bacteria was correlated with large numbers of other bacteria suggesting bacteria-bacteria interactions have implications for the stable occurrence of microorganisms on particles. Freshwater ecosystems are frequ...Continue Reading

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Citations

Mar 24, 2020·Environmental Microbiology·Christina BockJens Boenigk
Aug 6, 2019·Frontiers in Microbiology·Seong-Jun ChunChi-Yong Ahn
Dec 22, 2020·Frontiers in Microbiology·Yu-Ming Cai
Nov 11, 2021·Biodiversity Data Journal·Paula VicoClaudia Piccini
Nov 30, 2021·Microbial Biotechnology·María José Huertas, Manuel J Mallén-Ponce

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Datasets Mentioned

BETA
PRJNA448770

Methods Mentioned

BETA
PCR
light microscopy

Software Mentioned

Cytoscape
Mothur
PERMANOVA
PRIMER
R
Hmisc

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