High-cell-density cultivation and algicidal activity assays of a novel algicidal bacterium to control algal bloom caused by water eutrophication

Chunli Liao, Xiaobo Liu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

To biocontrol algal bloom, a novel algicidal bacterium, Enterobacter sp. NP23, was isolated. This strain has an effective algicidal activity against Chlorella vulgari, Microcystis aeruginosa, Scenedesmus, and Chlorella pyrenoidosa. Meanwhile, the growth factors were assayed to obtain a high cell density of strain NP23. As a result, three growth factors (i.e.; KNO3 0.6 %, MnSO4·H2O 0.001 %, and K2HPO4 0.3 %) were determined as the critical roles in enhancing the cell density of 1013 CFU/mL. Moreover, algicidal activity assays revealed that strain NP23 exhibited high algicidal activities against M. aeruginosa and Scenedesmus. These results indicate that this wild-type strain would provide a new member for biocontrolling microalgal and cyanobacterial populations in eco-technology.

Original languageEnglish
Article number2120
JournalWater, Air, and Soil Pollution
Volume225
Issue number11
DOIs
StatePublished - Nov 2014
Externally publishedYes

Keywords

  • Algal bloom
  • Algicidal activity
  • Algicidal bacterium
  • Biocontrolling
  • High-cell-density cultivation

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