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A predator-prey interaction between a marine Pseudoalteromonas sp. and Gram-positive bacteria

Author

Listed:
  • Bai-Lu Tang

    (Shandong University)

  • Jie Yang

    (Shandong University)

  • Xiu-Lan Chen

    (Shandong University)

  • Peng Wang

    (Shandong University
    Ocean University of China)

  • Hui-Lin Zhao

    (Shandong University)

  • Hai-Nan Su

    (Shandong University)

  • Chun-Yang Li

    (Ocean University of China
    Pilot National Laboratory for Marine Science and Technology (Qingdao))

  • Yang Yu

    (Shandong University)

  • Shuai Zhong

    (Shandong University)

  • Lei Wang

    (Shandong University)

  • Ian Lidbury

    (University of Warwick)

  • Haitao Ding

    (Polar Research Institute of China)

  • Min Wang

    (Ocean University of China)

  • Andrew McMinn

    (Ocean University of China
    University of Tasmania)

  • Xi-Ying Zhang

    (Shandong University)

  • Yin Chen

    (Ocean University of China
    University of Warwick)

  • Yu-Zhong Zhang

    (Shandong University
    Ocean University of China
    Pilot National Laboratory for Marine Science and Technology (Qingdao))

Abstract

Predator-prey interactions play important roles in the cycling of marine organic matter. Here we show that a Gram-negative bacterium isolated from marine sediments (Pseudoalteromonas sp. strain CF6-2) can kill Gram-positive bacteria of diverse peptidoglycan (PG) chemotypes by secreting the metalloprotease pseudoalterin. Secretion of the enzyme requires a Type II secretion system. Pseudoalterin binds to the glycan strands of Gram positive bacterial PG and degrades the PG peptide chains, leading to cell death. The released nutrients, including PG-derived D-amino acids, can then be utilized by strain CF6-2 for growth. Pseudoalterin synthesis is induced by PG degradation products such as glycine and glycine-rich oligopeptides. Genes encoding putative pseudoalterin-like proteins are found in many other marine bacteria. This study reveals a new microbial interaction in the ocean.

Suggested Citation

  • Bai-Lu Tang & Jie Yang & Xiu-Lan Chen & Peng Wang & Hui-Lin Zhao & Hai-Nan Su & Chun-Yang Li & Yang Yu & Shuai Zhong & Lei Wang & Ian Lidbury & Haitao Ding & Min Wang & Andrew McMinn & Xi-Ying Zhang &, 2020. "A predator-prey interaction between a marine Pseudoalteromonas sp. and Gram-positive bacteria," Nature Communications, Nature, vol. 11(1), pages 1-14, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-019-14133-x
    DOI: 10.1038/s41467-019-14133-x
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    Cited by:

    1. Alicja Razew & Cedric Laguri & Alicia Vallet & Catherine Bougault & Magdalena Kaus-Drobek & Izabela Sabala & Jean-Pierre Simorre, 2023. "Staphylococcus aureus sacculus mediates activities of M23 hydrolases," Nature Communications, Nature, vol. 14(1), pages 1-13, December.

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