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Microbial Ecology

, Volume 56, Issue 2, pp 383–389 | Cite as

Relationship of Geographic Distance, Depth, Temperature, and Viruses with Prokaryotic Communities in the Eastern Tropical Atlantic Ocean

  • Christian WinterEmail author
  • Markus M. Moeseneder
  • Gerhard J. Herndl
  • Markus G. Weinbauer
Brief Report

Abstract

The richness and biogeographical distribution pattern of bacterial and archaeal communities was assessed by terminal restriction fragment length polymorphism analysis of polymerase chain reaction-amplified fragments of the 16S rRNA gene at the surface (15–25 m depth), in the deep chlorophyll maximum layer (DCM; 50 m depth), and deep waters (75–1000 m depth) of the eastern tropical Atlantic Ocean. Additionally, prokaryotic and viral abundance and the frequency of infected prokaryotic cells (FIC) were determined along with physico-chemical parameters to identify factors influencing prokaryotic richness and biogeography. Viral abundance was highest in the DCM layer averaging 45.5 × 106 ml−1, whereas in the mixed surface layer and in the waters below the DCM, average viral abundance was 11.3 × 106 and 4.3 × 106 ml−1, respectively. The average estimate of FIC was 8.3% in the mixed surface layer and the DCM and 2.4% in deeper waters. FIC was positively related to prokaryotic and viral abundance and negatively to archaeal richness. There was no detectable effect of geographic distance (maximum distance between stations ∼4600 km) or differences between water masses on bacterial and archaeal community composition. Bacterial communities showed a clear depth zonation, whereas changes in archaeal community composition were related to temperature and FIC. The results indicate that planktonic archaeal virus host systems are a dynamic component of marine ecosystems under natural conditions.

Keywords

Archaea Mantel Test Terminal Restriction Fragment Length Polymorphism Archaeal Community Prokaryotic Cell 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

We thank the captain and crew of R/V Pelagia for their support at sea. We are grateful to G. J. Brummer for the opportunity to join the cruise. We would like to thank three anonymous reviewers for their helpful comments. Funding was provided by the Dutch Science Foundation (NWO-ALW grant 809.33.004) and the Royal NIOZ. Preparation of the manuscript was supported by a Marie Curie postdoctoral fellowship to CW (project ILVIROMAB, no. 007712).

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Christian Winter
    • 1
    Email author
  • Markus M. Moeseneder
    • 2
  • Gerhard J. Herndl
    • 3
  • Markus G. Weinbauer
    • 4
    • 5
  1. 1.University of British Columbia, EOS-OceanographyVancouverCanada
  2. 2.Dept. of Freshwater EcologyUniversity of ViennaViennaAustria
  3. 3.Dept. Biological OceanographyRoyal Netherlands Institute for Sea ResearchTexelThe Netherlands
  4. 4.Laboratoire d’ Océanographie de VillefrancheUniversité Pierre et Marie Curie-Paris 6Villefranche-sur-Mer CEDEXFrance
  5. 5.Microbial Ecology and Biogeochemistry Group, CNRSLaboratoire d’Océanographie de VillefrancheVillefranche-sur-Mer CEDEXFrance

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