Effects of Irradiation on Microbial Community Structure in the Yangtze River and Selection of Representative Microorganisms

2016 International Conference on Environmental Engineering and Sustainable Development

生态环境科学;经济学

Song, J.B.^1 ; Kuai, L.P.^1

School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai

200240, China^1

关键词: Biological monitoring;    Cultivable bacteria;    Microbial community structures;    Pesticide pollution;    Pollution indicators;    Radioactive contamination;    Radioactive pollution;    Separation and purification;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/51/1/012024/pdf
DOI  :  10.1088/1742-6596/51/1/012024

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In the field of radioactive contamination, few studies were conducted on using microorganisms for biological monitoring. However, studies regard microorganisms as pollution indicator organisms are very common in the field of heavy metal and pesticide pollution. In this study, we chose the Yangtze River water as the research object, and studied the changes of species and quantity of cultivable bacteria in water samples under different irradiation by separation and purification methods. Results indicated that irradiation will cause the change of microbial community structure and the decline of their quantity; Among them, (flavobacterium) is mostly affected and (bacillus) is less affected. Finally, we found two representative microorganisms (Flavobacterium nitratireducens strain N1; Novosphingobium aquiterrae strain E-II-3) in the Yangtze Water and provided a reference for using microorganisms to monitor the radioactive pollution.