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Influence of agricultural activities in the structure and metabolic functionality of paramo soil samples in Colombia studied using a metagenomics analysis in dynamic state

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Listed:
  • Alvarez-Yela, Astrid Catalina
  • Alvarez-Silva, María Camila
  • Restrepo, Silvia
  • Husserl, Johana
  • Zambrano, María Mercedes
  • Danies, Giovanna
  • Gómez, Jorge M.
  • González Barrios, Andrés Fernando

Abstract

Soil is one of the most variable and complex habitats on earth where microbial communities and their metabolic capabilities are greatly affected by agricultural activities. Nevertheless, the impact of these activities has been poorly studied and more detailed analyses are required in order to understand soil ecosystems at both a structural and metabolic level. Here, we conducted a detailed metagenomics analysis to establish the effect of anthropogenic interventions on microbial communities and on the biogeochemical cycle dynamics in soil. Our results suggest that the agricultural activities lead to shifts in the structure of microbial communities characterized by an increase in ammonia-oxidizing archaea, bacteria with copiotrophic features, and ascomycete fungi. The most important biogeochemical processes were related to the carbon and nitrogen cycles. These shifts in the composition of microbial communities led to a loss in the metabolic functional diversity, which was reflected by the lower metabolic activity found. On the other hand, in the non-intervened soil, an increased metabolic activity was observed. The biogeochemical cycles behaved in an interdependent and synergistic way. We were able to elucidate how soil ecosystems dynamics is influenced by agricultural activities in a paramo ecosystem in Colombia.

Suggested Citation

  • Alvarez-Yela, Astrid Catalina & Alvarez-Silva, María Camila & Restrepo, Silvia & Husserl, Johana & Zambrano, María Mercedes & Danies, Giovanna & Gómez, Jorge M. & González Barrios, Andrés Fernando, 2017. "Influence of agricultural activities in the structure and metabolic functionality of paramo soil samples in Colombia studied using a metagenomics analysis in dynamic state," Ecological Modelling, Elsevier, vol. 351(C), pages 63-76.
    • Handle: RePEc:eee:ecomod:v:351:y:2017:i:c:p:63-76
    DOI: 10.1016/j.ecolmodel.2017.02.010
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    References listed on IDEAS

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    1. Zamora, Maria A. & Pinzón, Andres & Zambrano, Maria M. & Restrepo, Silvia & Broadbelt, Linda J. & Moura, Matthew & Husserl Orjuela, Johana & González Barrios, Andrés F., 2015. "A comparison between functional frequency and metabolic flows framed by biogeochemical cycles in metagenomes: The case of “El Coquito” hot spring located at Colombia's national Nevados park," Ecological Modelling, Elsevier, vol. 313(C), pages 259-265.
    2. S. Leininger & T. Urich & M. Schloter & L. Schwark & J. Qi & G. W. Nicol & J. I. Prosser & S. C. Schuster & C. Schleper, 2006. "Archaea predominate among ammonia-oxidizing prokaryotes in soils," Nature, Nature, vol. 442(7104), pages 806-809, August.
    3. H. Jeong & B. Tombor & R. Albert & Z. N. Oltvai & A.-L. Barabási, 2000. "The large-scale organization of metabolic networks," Nature, Nature, vol. 407(6804), pages 651-654, October.
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    1. Ruiz-Moreno, Héctor Alejandro & López-Tamayo, Ana María & Caro-Quintero, Alejandro & Husserl, Johana & González Barrios, Andrés Fernando, 2019. "Metagenome level metabolic network reconstruction analysis reveals the microbiome in the Bogotá River is functionally close to the microbiome in produced water," Ecological Modelling, Elsevier, vol. 399(C), pages 1-12.

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