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The reduction effect and mechanism of Deinococcus radiodurans transformed dsrA gene to uranyl ions.
- Source :
- Journal of Radioanalytical & Nuclear Chemistry; Dec2021, Vol. 330 Issue 3, p1075-1090, 16p
- Publication Year :
- 2021
-
Abstract
- Deinococcus radiodurans (DR) is highly resistant to ionizing radiation. This study aims to convert dsrA gene into DR to construct radiation-resistant genetically engineered bacteria (Deino-dsrA) with high reducibility, so as to enhance the reducing and enrichment ability of DR. Methods: the recombinant vector pRADK-dsrA was extracted and transformed into DR. 1. Radiation resistant gene engineering bacteria containing dsrA gene were constructed successfully. 2. In the most favorable conditions,contributing to approximately 92.45% U (VI) was removed. 3. Autioxidant enzyme activities in Deino-dsrA is higher than in Deino-pRADK, excepting the content of malondialdehyde. The uranium enrichment ability of the Deino-dsrA is better than the wild DR, and dsrA gene can increase its antioxidation capability by increasing the activity of oxidase. [ABSTRACT FROM AUTHOR]
- Subjects :
- DEINOCOCCUS radiodurans
URANIUM enrichment
IONIZING radiation
IONS
GENES
Subjects
Details
- Language :
- English
- ISSN :
- 02365731
- Volume :
- 330
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Journal of Radioanalytical & Nuclear Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 153557236
- Full Text :
- https://doi.org/10.1007/s10967-021-08038-7