Niche differentiation drives microbial community assembly and succession in full-scale activated sludge bioreactors

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Celis Rodríguez, Miguel de and Duque, Javier and Marquina Díaz, Domingo and Salvadó, Humbert and Serrano Barrero, Susana Lourdes and Arregui García-Rovés, Lucía and Santos de la Sen, Antonio and Belda Aguilar, Ignacio (2022) Niche differentiation drives microbial community assembly and succession in full-scale activated sludge bioreactors. npj Biofilms and Microbiomes, 8 (23). pp. 1-6. ISSN Electronic: 2055-5008

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Official URL: https://doi.org/10.1038/s41522-022-00291-2




Abstract

Network models and community phylogenetic analyses are applied to assess the composition, structure, and ecological assembly mechanisms of microbial communities. Here we combine both approaches to investigate the temporal dynamics of network properties in individual samples of two activated sludge systems at different adaptation stages. At initial assembly stages, we observed microbial communities adapting to activated sludge, with an increase in network modularity and co-exclusion proportion, and a decrease in network clustering, here interpreted as a consequence of niche specialization. The selective pressure of deterministic factors at wastewater treatment plants produces this trend and maintains the structure of highly functional and specialized communities responding to seasonal environmental changes.


Item Type:Article
Uncontrolled Keywords:Microbial community; Sludge bioreactors
Subjects:Medical sciences > Biology > Microbiology
ID Code:74250
Deposited On:31 Aug 2022 11:33
Last Modified:01 Sep 2022 08:01

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