Microbial biodegradation of microcystin-RR by bacterium Sphingopyxis sp USTB-05
文献类型：期刊论文
| 作者 | Zhang, Mulan; Pan, Gang; Yan, Hai |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
 |
| 出版日期 | 2010 |
| 卷号 | 22期号:2页码:168-175 |
| 关键词 | microcystin-RR biodegradation Sphingopyxis sp USTB-05 enzymatic pathways Lake Dianchi |
| 中文摘要 | 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 first few hours. Then, through dehydration reaction, two hydrogen of amino group on arginine reacted with adjacent hydroxyl on carbon to form a linear MC-RR with two small peptide rings as the final product after 24 hr. These biodegradation pathways were different from those reported for other strains, implying that MC-RR may undergo different transformations and different products were formed due to various bacteria in natural lakes and reservoirs. |
| WOS记录号 | WOS:000274752100002 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21252]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhang, Mulan,Pan, Gang,Yan, Hai. Microbial biodegradation of microcystin-RR by bacterium Sphingopyxis sp USTB-05[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2010,22(2):168-175. |
| APA | Zhang, Mulan,Pan, Gang,&Yan, Hai.(2010).Microbial biodegradation of microcystin-RR by bacterium Sphingopyxis sp USTB-05.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,22(2),168-175. |
| MLA | Zhang, Mulan,et al."Microbial biodegradation of microcystin-RR by bacterium Sphingopyxis sp USTB-05".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 22.2(2010):168-175. |
入库方式： OAI收割
来源：生态环境研究中心
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