Microbial biodegradation of microcystin-RR by bacterium
Sphingopyxis sp. USTB-05 |
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| Authors: | Mulan Zhang Gang Pan and Hai Yan |
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| Institution: | 1. State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
2. Department of Biological Science and Technology, School of Applied Science, University of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | A strain,USTB-05,isolated from Lake Dianchi,China,degraded the cyanobacterial toxin microcystin-RR(MC-RR) at the rate of 16.7 mg/L per day.Analysis of 16S rDNA sequence showed that the strain was Sphingopyxis sp.Enzymatic degradation pathways for MC-RR by Sphingopyxis sp.USTB-05 were identified.Adda-Arg peptide bond of MC-RR was cleaved and then a hydrogen and a hydroxyl were combined onto the NH 2 group of Adda and the carboxyl group of arginine to form a linear molecule as intermediate product within the ... |
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| Keywords: | microcystin-RR biodegradation Sphingopyxis sp USTB-05 enzymatic pathways Lake Dianchi |
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