| Lytic Characteristics and Identification of Two Alga-lysing Bacterial Strains |
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| 作者姓名： | PEI Haiyan and HU Wenrong * College of Environmental Science and Engineering Ocean University of China Qingdao P.R.China Shandong Provincial Engineering Centre on Environmental Science and Technology Jinan P.R.China School of Environmental Science and Engineering Shandong University Jinan P.R.China |
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| 作者单位： | PEI Haiyan 1)，and HU Wenrong 2)，3)，* 1) College of Environmental Science and Engineering，Ocean University of China，Qingdao 266003，P.R.China 2) Shandong Provincial Engineering Centre on Environmental Science and Technology，Jinan 250061，P.R.China 3) School of Environmental Science and Engineering，Shandong University，Jinan 250061，P.R.China |
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| 摘 要： | Lytic Characteristics and Identification of Two Alga-lysing Bacterial StrainsBeaulieu, S. E., M. R. Sengco, and D. M. Anderson, 2005. Using clay to control harmful algal blooms: deposition and resuspension of clay/algal flocs. Harmful Algae . (4): 123-138…
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| 收稿时间： | 24 March 2006 |
| 修稿时间： | 13 August 2006 |
Lytic Characteristics and Identification of Two Alga-lysing Bacterial Strains |
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| PEI Haiyan ,and HU Wenrong ,,* College of Environmental Science and Engineering,Ocean University of China,Qingdao ,P.R.China Shandong Provincial Engineering Centre on Environmental Science and Technology,Jinan ,P.R.China School of Environmental Science and Engineering,Shandong University,Jinan ,P.R.China.Lytic Characteristics and Identification of Two Alga-lysing Bacterial Strains[J].Journal of Ocean University of China,2006,5(4):368-374. |
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| Authors: | PEI Haiyan HU Wenrong |
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| Institution: | 1. College of Environmental Science and Engineering, Ocean University of China, Qingdao 266003, P. R. China
2. Shandong Provincial Engineering Centre on Environmental Science and Technology, Jinan 250061, P. R. China;School of Environmental Science and Engineering, Shandong University, Jinan 250061, P.R. China |
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| Abstract: | All previously reported bacterial species which are capable of lysing harmful algae have been isolated from coastal environments
in which harmful algae blooms have occurred. Due to the low concentration of alga-lysing bacteria in an algal bloom, it is
difficult to isolate the alga-lysing bacteria by existing methods. In this paper, two algae-lysing bacterial strains, P01
and P03, have been isolated from a biosystem immobilized on a sponge that was highly effective in removing algae and microcystins.
Their lysing modes and effects on Microcystis aeruginosa have been studied. The results show that the degradation processes of these two strains for M. aeruginosa accorded with a first-order reaction model when the chlorophylla concentration was in the range from 0 to 1000μg L?1. The degradation rate constants were 0.1067, 0.1274 and 0.2792 for P01 and 0.0683, 0.0744 and 0.02897 for P03, when the bacterial
densities were 8.6×105, 8.6×106 and 8.6×107 cells mL?1 respectively. Moreover, the two bacterial strains had favourable lytic effects not only on M. aeruginosa , but also on Chlorella and Scene-desmus. Their lytic effect on M. aeruginosa did not require physical cell to cell contact, but proceeded by the production of an extracellular product. The bacterial
strains were identified as Bacillus species by PCR amplification of the 16S rRNA gene, BLAST analysis, and comparison with
sequences in the GenBank nucleotide database. |
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| Keywords: | alga-lysing bacteria lytic character 16S rDNA Bacillus |
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