Early diagenesis and trophic role of extracellular DNA in different benthic ecosystems

  title={Early diagenesis and trophic role of extracellular DNA in different benthic ecosystems},
  author={Cinzia Corinaldesi and Antonio Dell'Anno and Roberto Danovaro},
  journal={Limnology and Oceanography},
To provide new insights into the early diagenesis of extracellular deoxyribonucleic acid (DNA) and its relevance in trophodynamic processes, we collected sediment samples from a variety of coastal and deep‐sea sites. Turnover times of extracellular DNA were approximately threefold shorter in coastal benthic systems than in deep‐sea sediments (0.35 yr and 1.2 yr, respectively). This was due to the higher concentrations of bioavailable extracellular DNA in deep‐sea over coastal sediments (19.8… 

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