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Antonie van Leeuwenhoek

, Volume 111, Issue 6, pp 995–1000 | Cite as

Ponticoccus alexandrii sp. nov., a novel bacterium isolated from the marine toxigenic dinoflagellate Alexandrium minutum

  • Qiao Yang
  • Xiaoling Zhang
  • Lingzhi Li
  • Ruonan Zhang
  • Lijuan Feng
  • Jun Mu
Original Paper

Abstract

During an investigation of the biodiversity of the cultivable bacterial community associated with paralytic shellfish poisoning toxin-producing marine dinoflagellate, Alexandrium minutum a novel algal-associated bacterium, designated strain AT2-AT was isolated. 16S rRNA gene sequence similarity analysis showed that the strain is a member of the genus Ponticoccus, with high sequence similarity to Ponticoccus litoralis DSM 18986T (97.9%) and Ponticoccus lacteus JCM 30379T (96.0%). However, based on the data obtained for the physiological and biochemical characteristics, and low level of DNA–DNA relatedness analysis, the strain could be genotypically and phenotypically differentiated from two type strains of the genus Ponticoccus. Therefore, this algal-associated bacterial strain is concluded to represent a novel species of the genus Ponticoccus, for which the name Ponticoccus alexandrii sp. nov. is proposed. The type strain is AT2-AT (CCTCC AB 2017228 T = KCTC 52626 T ).

Keywords

Ponticoccus alexandrii sp. nov Marine dinoflagellate Alexandrium minutum Algal-associated bacterium 

Notes

Acknowledgements

This work was supported by Talent Introduction Foundation of Zhejiang Ocean University (for Qiao Yang), the National Natural Science Foundation of China (41206093 and 31470540), the Zhejiang Provincial Natural Science Foundation of China (LY18D060007), the fund from Central Non-profit Research Institutes (East China Sea Fisheries Research Institute) (2012T08). The authors also thank Dr. Kai Tang at Xiamen University for kindly providing the type strain of Ponticoccus lacteus.

Conflict of interest

All the authors have declared no conflict of interest.

Ethical approval

This article does not contain any studies with human participants or animals performed by any of the authors.

Supplementary material

10482_2017_996_MOESM1_ESM.docx (537 kb)
Supplementary material 1 (DOCX 536 kb)

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2017

Authors and Affiliations

  1. 1.Laboratory of Marine Environment & Ecology, College of Marine Science & TechnologyZhejiang Ocean UniversityZhoushanPeople’s Republic of China
  2. 2.East China Sea Fisheries Research Institute, Chinese Academy of Fishery SciencesShanghaiPeople’s Republic of China
  3. 3.Center of Research in Life Sciences & Environmental SciencesHarbin University of CommerceHarbinPeople’s Republic of China

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