Current Microbiology

, Volume 75, Issue 12, pp 1619–1625 | Cite as

Isolation and Complete Genome Sequence of a Novel Marinobacter Phage B23

  • Min Zhu
  • Min WangEmail author
  • Yong JiangEmail author
  • Siyuan You
  • Guihua Zhao
  • Yundan Liu
  • Qingwei Yang
  • Qian Liu
  • Zhaoyang Liu
  • Zheng Gong
  • Hongbing Shao


We used the double-agar layer method to isolate a novel Marinobacter marina bacteriophage, B23, from the surface water sample of the Bohai sea of China. There is some work to better understand the phage. The result of transmission electron microscopy revealed that B23 belongs to the family Siphoviridae with a head of 80 nm in diameter and a tail of 230 nm. Microbiological characterization evidenced that phage B23 is stable at the temperatures from − 25 to 60 °C, and showed vigorous vitality at pH between 4.0 and 12.0. One-step growth experiment showed that it had a longer latent period and higher lysis efficiency. Furthermore, the complete genome of B23 was sequenced and analyzed, which consists of a 35132 bp DNA with a G + C content of 59.8% and 50 putative open reading frames. The genome was divided into five parts, consisting of DNA replication and regulation, phage packaging, phage structure, host lysis and hypothetical protein.



We are grateful to the research vessel Dong Fang Hong 2, for providing the seawater samples. The research was funded by the National Natural Science Foundation of China (Nos. 31500339 and 41076088), the National Key Basic Research Program of China (973Program, Grant No: 2013CB429704), China Postdoctoral Science Foundation (Grant Nos. 2015M570612 and 2016T90649), and Fundamental Research Funds for the Central University of Ocean University of China (Grant Nos. 201762017, 201564010 and 201512008).

Compliance with Ethical Standards

Conflict of interest

The authors declare that they have no conflict of interest.


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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.College of Marine Life SciencesOcean University of ChinaQingdaoChina
  2. 2.Institute of Evolution and Marine BiodiversityOcean University of ChinaQingdaoChina
  3. 3.Key Lab of Polar Oceanography and Global Ocean ChangeOcean University of ChinaQingdaoChina

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