, Volume 823, Issue 1, pp 205–216 | Cite as

Autoaggregation and adhesion abilities in bacteria associated with colonies of Microcystis

  • Peiliang Zhang
  • Maozhen Chen
  • Yapeng Zhang
  • Yemei Li
  • Shan Lu
  • Pengfu Li
Primary Research Paper


Bacteria associated with Microcystis may play an important role in formation of Microcystis colonies and in development of cyanobacterial blooms. Adhesion to Microcystis cells is a requirement for colonization and long-term association of bacteria with Microcystis colonies. This study aimed to explore the relationship between autoaggregation ability and adhesion ability of Microcystis-associated bacteria, and to evaluate the effects of different environmental factors on their autoaggregation abilities. Twelve bacterial strains were isolated from colonies of three Microcystis morphospecies. All the bacterial isolates exhibited autoaggregation abilities. A positive correlation was found between autoaggregation ability and adhesion ability. Two selected bacterial isolates, HJX5 and HJX9, exhibited strong autoaggregation abilities at pH from 3 to 11. The laboratory experiment revealed the inhibitory effects of metal cations on the autoaggregation abilities of HJX5 and HJX9, but HJX5 and HJX9 could exhibit their autoaggregation abilities in the lake water. Extraction of exopolysaccharides (EPS) decreased significantly their autoaggregation abilities, indicating that EPS can play an important role in autoaggregation. The autoaggregation ability of Microcystis-associated bacteria may be an important trait contributing to their attachment into Microcystis colonies.


Cyanobacterial bloom Exopolysaccharide Attachment Colonization 



This study is financially supported by the National Natural Science Foundation of China (No. 31270447). We thank two anonymous reviewers for their valuable comments.

Supplementary material

10750_2018_3706_MOESM1_ESM.pdf (110 kb)
Supplementary material 1 (PDF 109 kb)


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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • Peiliang Zhang
    • 1
  • Maozhen Chen
    • 1
  • Yapeng Zhang
    • 1
  • Yemei Li
    • 1
  • Shan Lu
    • 1
  • Pengfu Li
    • 1
  1. 1.State Key Laboratory of Pharmaceutical Biotechnology, School of Life SciencesNanjing UniversityNanjingChina

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