Publikation:

Metatranscriptomics reveals contrasting effects of elevation on the activity of bacteria and bacterial viruses in soil

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Datum

2022

Autor:innen

Merges, Dominik
Schmitt, Imke
Neuschulz, Eike Lena
Dal Grande, Francesco
Bálint, Miklós

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Deutsche Forschungsgemeinschaft (DFG): NE 1863/2‐1

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Open Access-Veröffentlichung
Open Access Hybrid
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Titel in einer weiteren Sprache

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Published

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Molecular Ecology. Wiley. 2022, 32(23), pp. 6552-6563. ISSN 0962-1083. eISSN 1365-294X. Available under: doi: 10.1111/mec.16756

Zusammenfassung

Soil microbial diversity affects ecosystem functioning and global biogeochemical cycles. Soil bacterial communities catalyse a diversity of biogeochemical reactions and have thus sparked considerable scientific interest. One driver of bacterial community dynamics in natural ecosystems has so far been largely neglected: the predator–prey interactions between bacterial viruses (bacteriophages) and bacteria. To generate ground level knowledge on environmental drivers of these particular predator–prey dynamics, we propose an activity-based ecological framework to simultaneous capture community dynamics of bacteria and bacteriophages in soils. An ecological framework and specifically the analyses of community dynamics across latitudinal and elevational gradients have been widely used in ecology to understand community-wide responses of innumerable taxa to environmental change, in particular to climate. Here, we tested the hypothesis that the activity of bacteria and bacteriophages codeclines across an elevational gradient. We used metatranscriptomics to investigate bacterial and bacteriophage activity patterns at five sites across 400 elevational metres in the Swiss Alps in 2015 and 2017. We found that metabolic activity (transcription levels) of bacteria declined significantly with increasing elevation, but activity of bacteriophages did not. We showed that bacteriophages are consistently active in soil along the entire gradient, making bacteriophage activity patterns divergent from that of their putative bacterial prey. Future efforts will be necessary to link the environment-activity relationship to predator–prey dynamics, and to understand the magnitude of viral contributions to carbon, nitrogen and phosphorus cycling when infection causes bacterial cell death, a process that may represent an overlooked component of soil biogeochemical cycles.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
570 Biowissenschaften, Biologie

Schlagwörter

Genetics

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ISO 690MERGES, Dominik, Alexandra SCHMIDT, Imke SCHMITT, Eike Lena NEUSCHULZ, Francesco DAL GRANDE, Miklós BÁLINT, 2022. Metatranscriptomics reveals contrasting effects of elevation on the activity of bacteria and bacterial viruses in soil. In: Molecular Ecology. Wiley. 2022, 32(23), pp. 6552-6563. ISSN 0962-1083. eISSN 1365-294X. Available under: doi: 10.1111/mec.16756
BibTex
@article{Merges2022-11-18Metat-59624,
  year={2022},
  doi={10.1111/mec.16756},
  title={Metatranscriptomics reveals contrasting effects of elevation on the activity of bacteria and bacterial viruses in soil},
  number={23},
  volume={32},
  issn={0962-1083},
  journal={Molecular Ecology},
  pages={6552--6563},
  author={Merges, Dominik and Schmidt, Alexandra and Schmitt, Imke and Neuschulz, Eike Lena and Dal Grande, Francesco and Bálint, Miklós}
}
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