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Structure and co-occurrence patterns in microbial communities under acute environmental stress reveal ecological factors fostering resilience.
Mandakovic, Dinka; Rojas, Claudia; Maldonado, Jonathan; Latorre, Mauricio; Travisany, Dante; Delage, Erwan; Bihouée, Audrey; Jean, Géraldine; Díaz, Francisca P; Fernández-Gómez, Beatriz; Cabrera, Pablo; Gaete, Alexis; Latorre, Claudio; Gutiérrez, Rodrigo A; Maass, Alejandro; Cambiazo, Verónica; Navarrete, Sergio A; Eveillard, Damien; González, Mauricio.
Afiliação
  • Mandakovic D; Bioinformática y Expresión Génica, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago, Chile.
  • Rojas C; Center for Genome Regulation (Fondap 15090007), Universidad de Chile, Santiago, Chile.
  • Maldonado J; Instituto de Ciencias Agronómicas, Universidad de O'Higgins, Rancagua, Chile.
  • Latorre M; Bioinformática y Expresión Génica, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago, Chile.
  • Travisany D; Center for Genome Regulation (Fondap 15090007), Universidad de Chile, Santiago, Chile.
  • Delage E; Bioinformática y Expresión Génica, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago, Chile.
  • Bihouée A; Center for Genome Regulation (Fondap 15090007), Universidad de Chile, Santiago, Chile.
  • Jean G; Instituto de Ciencias Agronómicas, Universidad de O'Higgins, Rancagua, Chile.
  • Díaz FP; Mathomics, Center for Mathematical Modeling, Universidad de Chile, Santiago, Chile.
  • Fernández-Gómez B; Mathomics, Center for Mathematical Modeling, Universidad de Chile, Santiago, Chile.
  • Cabrera P; LS2N, UMR CNRS 6004, IMT Atlantique, ECN, Université de Nantes, Nantes, France.
  • Gaete A; l'institut du thorax, INSERM, CNRS, Université de Nantes, Nantes, France.
  • Latorre C; LS2N, UMR CNRS 6004, IMT Atlantique, ECN, Université de Nantes, Nantes, France.
  • Gutiérrez RA; Center for Genome Regulation (Fondap 15090007), Universidad de Chile, Santiago, Chile.
  • Maass A; Departamento de Ecología, Pontificia Universidad Católica de Chile, Santiago, Chile.
  • Cambiazo V; Institute of Ecology and Biodiversity (IEB), Santiago, Chile.
  • Navarrete SA; Millennium Nucleus Center for Plant Systems and Synthetic Biology, Pontificia Universidad Católica de Chile, Santiago, Chile.
  • Eveillard D; Bioinformática y Expresión Génica, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago, Chile.
  • González M; Center for Genome Regulation (Fondap 15090007), Universidad de Chile, Santiago, Chile.
Sci Rep ; 8(1): 5875, 2018 04 12.
Article em En | MEDLINE | ID: mdl-29651160
Understanding the factors that modulate bacterial community assembly in natural soils is a longstanding challenge in microbial community ecology. In this work, we compared two microbial co-occurrence networks representing bacterial soil communities from two different sections of a pH, temperature and humidity gradient occurring along a western slope of the Andes in the Atacama Desert. In doing so, a topological graph alignment of co-occurrence networks was used to determine the impact of a shift in environmental variables on OTUs taxonomic composition and their relationships. We observed that a fraction of association patterns identified in the co-occurrence networks are persistent despite large environmental variation. This apparent resilience seems to be due to: (1) a proportion of OTUs that persist across the gradient and maintain similar association patterns within the community and (2) bacterial community ecological rearrangements, where an important fraction of the OTUs come to fill the ecological roles of other OTUs in the other network. Actually, potential functional features suggest a fundamental role of persistent OTUs along the soil gradient involving nitrogen fixation. Our results allow identifying factors that induce changes in microbial assemblage configuration, altering specific bacterial soil functions and interactions within the microbial communities in natural environments.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Archaea / Fenômenos Fisiológicos Bacterianos / Ecologia / Microbiota Tipo de estudo: Prognostic_studies Idioma: En Revista: Sci Rep Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Chile País de publicação: Reino Unido

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Archaea / Fenômenos Fisiológicos Bacterianos / Ecologia / Microbiota Tipo de estudo: Prognostic_studies Idioma: En Revista: Sci Rep Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Chile País de publicação: Reino Unido