耐辐射球菌
生物修复
放射性废物
环境科学
环境修复
废物管理
放射性核素
生化工程
污染
化学
生物
DNA
工程类
生态学
物理
量子力学
生物化学
作者
Parameswaran Kiruthika Lakshmi,Sitharanjithan Abirami,Selvaraj Meenakshi,Chockaiyan Usha,Pandi Sakthieaswari,Kannan Aarthy,S. Gayathri,Sathaiah Baby
出处
期刊:Elsevier eBooks
[Elsevier]
日期:2022-01-01
卷期号:: 717-732
标识
DOI:10.1016/b978-0-323-90452-0.00037-2
摘要
Radioactive materials are inevitable in the field of medicine, medical diagnosis, industrial applications, energy generation, and nuclear research. They result in the generation of radioactive wastes and become a major threat to the living organisms as well as to the environment. High cost, low feasibility, and generation of secondary contaminants makes the conventional physicochemical techniques inappropriate for large-scale remediation of radionuclides. Bioremediation involving microorganisms such as fungi and bacteria can serve as a suitable technique for eco-friendly, cost-effective, and successful removal of radioactive elements. Potent antioxidants and the DNA repair mechanism in Deinococcus radiodurans are attributed for its survival under extreme radiation. A number of research studies have authenticated the metal-reducing ability of wild-type D. radiodurans. However, lot of genetic engineering research has been conducted to construct a recombinant strain capable of accumulating radionuclides at higher concentrations as well as for the removal of mixed pollutants present in the radioactive waste sites. Biofilm-producing recombinant D. radiodurans is considered to be efficient in industrial-scale bioremediation because of the ease of downstream processing. Moreover, a genetically engineered strain has also been exploited as a biosensor for measuring radioactivity. Hence, D. radiodurans plays a significant role in the management of radionuclides, thereby helping to create a sustainable environment.
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