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Dehalococcoides is a genus of bacteria within class Dehalococcoidia that obtain energy via the oxidation of hydrogen and subsequent reductive dehalogenation of halogenated organic compounds in a mode of anaerobic respiration called organohalide respiration. They are well known for their great potential to remediate halogenated ethenes and aromatics. They are the only bacteria known to transform highly chlorinated dioxins, PCBs. In addition, they are the only known bacteria to transform tetrachloroethene to ethene.
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Desulfitobacterium dehalogenans is a species of bacteria. They are facultative organohalide respiring bacteria capable of reductively dechlorinating chlorophenolic compounds and tetrachloroethene. They are anaerobic, motile, Gram-positive and rod-shaped bacteria capable of utilizing a wide range of electron donors and acceptors. The type strain JW/IU-DCT, DSM 9161, NCBi taxonomy ID 756499.
Reductive dehaholagenses (EC 1.97.1.8) are a group of enzymes utilized in organohalide respiring bacteria. These enzymes are mostly attached to the periplasmic side of the cytoplasmic membrane and play a central role in energy-conserving respiratory process for organohalide respiring bacteria by reducing organohalides. During such reductive dehalogenation reaction, organohalides are used as terminal electron acceptors. They catalyze the following general reactions:
Jagnyeswar Ratha is a professor at the School of Life Sciences, Sambalpur University, Burla. He teaches biochemistry, cell biology, immunology and animal biotechnology.
Sam Hay is a chemist from New Zealand and a Reader in the Department of Chemistry at The University of Manchester. His research in general is based on computational chemistry and theoretical chemistry, specifically on the areas of In silico Enzymology, quantum mechanics roles in biological processes, kinetic modelling of complex reactions and high pressure spectroscopy.
References
- ↑ Jugder, Bat-Erdene; Ertan, Haluk; Lee, Matthew; Manefield, Michael; Marquis, Christopher P. (2015-10-01). "Reductive Dehalogenases Come of Age in Biological Destruction of Organohalides". Trends in Biotechnology. 33 (10): 595–610. doi:10.1016/j.tibtech.2015.07.004. ISSN 0167-7799. PMID 26409778.
- ↑ Jugder, Bat-Erdene; Ertan, Haluk; Bohl, Susanne; Lee, Matthew; Marquis, Christopher P.; Manefield, Michael (2016). "Organohalide Respiring Bacteria and Reductive Dehalogenases: Key Tools in Organohalide Bioremediation". Frontiers in Microbiology. 7: 249. doi: 10.3389/fmicb.2016.00249 . ISSN 1664-302X. PMC 4771760 . PMID 26973626.
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