Selective control of cyanobacteria by surfactin-containing culture broth of Bacillus subtilis C1

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Title
Selective control of cyanobacteria by surfactin-containing culture broth of Bacillus subtilis C1
Author(s)
Chi-Yong Ahn; Seung Hyun Joung; Jong Woon Jeon; Hee Sik Kim; Byung Dae Yoon; Hee Mock Oh
Bibliographic Citation
Biotechnology Letters, vol. 25, no. 14, pp. 1137-1142
Publication Year
2003
Abstract
Of several types of chemical surfactants and biosurfactants, only the culture broth of Bacillus subtilis Cl containing surfactin at 10 mg 1-1 completely inhibited the growth of Microcystis aeruginosa, a bloom-forming cyanobacterium in highly eutrophic lakes. The broth with 10 mg surfactin 1-1 also removed 85% of the maximally grown M. aeruginosa (chlorophyll-a concentration, 1000 μg 1-1) within 2 d, and the removal efficiency was enhanced by Ca2+ over 1 mM. The growth of Anabaena affinis, another bloom-forming cyanobacterium, was also inhibited about 70% with surfactin at 10 mg 1-1 broth. However, the effect of the broth was delayed over 3 d in the green algae, Chlorella vulgaris and Scenedesmus sp., and was negligible in a diatom, Navicula sp., indicating the potential for the selective control of cyanobacterial blooms.
Keyword
bacillus subtiliscyanobacteriamicrocystis aeruginosaselectivitysurfactin
ISSN
0141-5492
Publisher
Springer
DOI
http://dx.doi.org/10.1023/A:1024508927361
Type
Article
Appears in Collections:
Synthetic Biology and Bioengineering Research Institute > Cell Factory Research Center > 1. Journal Articles
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