[1] Zhou Yuanlong, Yang Fei, Liang Geyu, Yin Lihong, et al. Biodegradation of microcystin-RR and -LR by an indigenousbacterial strain MC-LTH11 isolated from Lake Taihu [J]. Journal of Southeast University (English Edition), 2014, 30 (1): 68-71. [doi:10.3969/j.issn.1003-7985.2014.01.013]

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Biodegradation of microcystin-RR and -LR by an indigenousbacterial strain MC-LTH11 isolated from Lake Taihu()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

30

Issue:

2014 1

Page:

68-71

Research Field:

Environmental Science and Engineering

Publishing date:

2014-03-31

Info

Title:

Biodegradation of microcystin-RR and -LR by an indigenousbacterial strain MC-LTH11 isolated from Lake Taihu

Author(s):

Zhou Yuanlong;  Yang Fei;  Liang Geyu;  Yin Lihong;  Pu Yuepu

Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Southeast University, Nanjing 210009, China

Keywords:

water treatment;  biodegradation;  microbiology;  microcystins;  high performance liquid chromatography(HPLC)

PACS:

X506

DOI:

10.3969/j.issn.1003-7985.2014.01.013

Abstract:

The indigenous bacterial strain MC-LTH11 with the capability of degrading microcystin-RR(MC-RR)and microcystin-LR(MC-LR)was successfully isolated from Lake Taihu. The bacterium was identified as Stenotrophomonas sp., which possessed a mlrA gene. The MC-LTH11 thoroughly degraded MC-RR and MC-LR with the initial concentration of 37.13 mg/L and 18.49 mg/L, respectively, in the medium containing crude microcystins extract within 6 d. The degradation rates were affected by temperature, pH, initial MCs concentration and the kinds of media. Additionally, the bacterial strain MC-LTH11 also degraded thoroughly microcystins in the water body of Lake Taihu within 1 d. These results suggest that the Stenotrophomonas sp. MC-LTH11 has the capacity to bioremediate water bodies contaminated by microcystins, and may contribute to the degradation of microcystins after the outbreak of harmful cyanobacterial blooms in Lake Taihu.

References:

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Memo

Memo:

Biographies: Zhou Yuanlong(1988—), male, graduate; Pu Yuepu(corresponding author), male, doctor, professor, yppu@ seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.30972440), the National Science and Technology Major Project(No.2012ZX07101-005).
Citation: Zhou Yuanlong, Yang Fei, Liang Geyu, et, al.Biodegradation of microcystin-RR and -LR by an indigenous bacterial strain MC-LTH11 isolated from Lake Taihu[J].Journal of Southeast University(English Edition), 2014, 30(1):68-71.[doi:10.3969/j.issn.1003-7985.2014.01.013]

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