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Control Effect of Dinoflagellate Bloom by Powder of Marine Rock and Fungus Culture Supernatant  

Hyun, Sung-Hee (Department of Natural Science, Eulji University)
Shin, Hyun-Woung (Department of Marine Biotechnology, Soonchunhyang University)
Publication Information
Korean Journal of Microbiology / v.42, no.1, 2006 , pp. 7-11 More about this Journal
Abstract
To see effect of marine rock powder and fungal culture supernatant, we analyzed the biodegradation rates of harmful marine dinoflagellate, Heterosigma akashiwo and Prorocentrum minimum for developing the effective control methodology of algal bloom. Relatively low removal rates were observed in the treatment of marine rock powder or buffer solution alone. However, the lysis of H. akashiwo and P. minimum was enhanced in the combined treatments of marine rock powder with fungal supernatant. The effective concentration and exposure time of fungal supernatant for the lysis of H. akashiwo and P. minimum were 5 ml/l and 30 minutes, respectively. These results suggest that the fungal supernatant may be a biocontrol agent for the control of algal blooms in seawater.
Keywords
biodegradation; dinoflagellata; fungal supernatant; lysis; marine rock powder;
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