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SAR11 marine bacteria require exogenous reduced sulphur for growth

Author

Listed:
  • H. James Tripp

    (220 Nash Hall, Oregon State University, Corvallis, Oregon 97331, USA)

  • Joshua B. Kitner

    (220 Nash Hall, Oregon State University, Corvallis, Oregon 97331, USA)

  • Michael S. Schwalbach

    (220 Nash Hall, Oregon State University, Corvallis, Oregon 97331, USA)

  • John W. H. Dacey

    (Woods Hole Oceanographic Institution, Redfield 3-22, MS no. 32, Woods Hole, Massachusetts 02543, USA)

  • Larry J. Wilhelm

    (220 Nash Hall, Oregon State University, Corvallis, Oregon 97331, USA)

  • Stephen J. Giovannoni

    (220 Nash Hall, Oregon State University, Corvallis, Oregon 97331, USA)

Abstract

Reduced circumstances An intriguing example of genome reduction has been found in SAR11 marine bacteria, the ubiquitous clade with the smallest known genome of all free-living heterotrophic cells. 'Normal' marine aerobic bacteria are known to use assimilatory sulphate reduction to acquire sulphur from the environment. But Candidatus Pelagibacter ubique, and other SAR11 microbes, are deficient in this key metabolic pathway. Instead they rely on reduced sulphur compounds in the environment. This identifies compounds such as DMSP and methionine as essential growth requirements for these large plankton populations, a potentially important factor in microbial population dynamics in the oceans.

Suggested Citation

  • H. James Tripp & Joshua B. Kitner & Michael S. Schwalbach & John W. H. Dacey & Larry J. Wilhelm & Stephen J. Giovannoni, 2008. "SAR11 marine bacteria require exogenous reduced sulphur for growth," Nature, Nature, vol. 452(7188), pages 741-744, April.
    • Handle: RePEc:nat:nature:v:452:y:2008:i:7188:d:10.1038_nature06776
    DOI: 10.1038/nature06776
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    Cited by:

    1. Flora Vincent & Matti Gralka & Guy Schleyer & Daniella Schatz & Miguel Cabrera-Brufau & Constanze Kuhlisch & Andreas Sichert & Silvia Vidal-Melgosa & Kyle Mayers & Noa Barak-Gavish & J. Michel Flores , 2023. "Viral infection switches the balance between bacterial and eukaryotic recyclers of organic matter during coccolithophore blooms," Nature Communications, Nature, vol. 14(1), pages 1-17, December.
    2. Lauren F. Messer & David G. Bourne & Steven J. Robbins & Megan Clay & Sara C. Bell & Simon J. McIlroy & Gene W. Tyson, 2024. "A genome-centric view of the role of the Acropora kenti microbiome in coral health and resilience," Nature Communications, Nature, vol. 15(1), pages 1-15, December.
    3. Josep Ramoneda & Thomas B. N. Jensen & Morgan N. Price & Emilio O. Casamayor & Noah Fierer, 2023. "Taxonomic and environmental distribution of bacterial amino acid auxotrophies," Nature Communications, Nature, vol. 14(1), pages 1-11, December.

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