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Isolation, Identification and Characterization of Blue-green Algae-lysing Strain DC-L14 from Lake Dianchi, China
Lu Lanlan; Li Genbao; Shen Yinwu; Liu Yongding (Liuyd@ihb.ac.cn); Liu Yongding; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2009
Source PublicationChinese Journal of Applied and Environmental Biology
ISSN1006-687X
Volume15Issue:1Pages:106-109
AbstractAn algae-lysing strain DC-L14 was isolated from an area with dense blue-green algae in Lake Dianchi, southwestern China and it was identified as Lysinibacillus fusiformis based on 16S rDNA sequence analysis. The toxicity test on mouse primarily showed that the strain was non-toxic. Under the laboratory condition, the strain could cause Microcystis aeruginosa cells to agglomerate, sinking to bottom and becoming yellow. The reduction rate of chlorophyll a after 4 days was 67.2% on an average, with the highest of 70.1% and lowest of 65.5% in the cultures of Microcystis viridis, M wesenbergii, Aphanizomenon flos-aquae and Anubaena flos-aquae. The strongest algae-lytic ability was found at the stable phase of DC-L14 culture, which could reduce chlorophyll a content of M aeruginosa by 82.1% in four days. After centrifugation and sedimentation, the cells of bacteria showed no algae-lytic ability, but the cell-free supernatant displayed the same algae-lytic ability as that of the whole bacteria culture, and the heated bacterial culture showed the highest algae-lytic ability, indicating that some extracellular and thermo-stable substances produced by this strain had the algae-lytic ability, and high temperature possibly reinforced the algae-lytic ability.
Indexed By其他
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/18707
Collection期刊论文
Corresponding AuthorLiu Yongding; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Lu Lanlan,Li Genbao,Shen Yinwu,et al. Isolation, Identification and Characterization of Blue-green Algae-lysing Strain DC-L14 from Lake Dianchi, China[J]. Chinese Journal of Applied and Environmental Biology,2009,15(1):106-109.
APA Lu Lanlan,Li Genbao,Shen Yinwu,Liu Yongding ,Liu Yongding,&Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2009).Isolation, Identification and Characterization of Blue-green Algae-lysing Strain DC-L14 from Lake Dianchi, China.Chinese Journal of Applied and Environmental Biology,15(1),106-109.
MLA Lu Lanlan,et al."Isolation, Identification and Characterization of Blue-green Algae-lysing Strain DC-L14 from Lake Dianchi, China".Chinese Journal of Applied and Environmental Biology 15.1(2009):106-109.
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