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Title: Description of the novel perchlorate-reducing bacteria Dechlorobacter hydrogenophilus gen. nov., sp. nov. and Propionivibrio militaris, sp. nov.

Journal Article · · Applied Microbiology and Biotechnology
 [1];  [2];  [3];  [4]
  1. Univ. of California, Berkeley, CA (United States)
  2. Univ. of California, Berkeley, CA (United States); Univ. of Montana, Missoula, MT (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  4. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Novel dissimilatory perchlorate-reducing bacteria (DPRB) were isolated from enrichments conducted under conditions different from those of all previously described DPRB. Strain LT-1T was enriched using medium buffered at pH 6.6 with 2-(N-morpholino)ethanesulfonic acid (MES) and had only 95% 16S rRNA gene identity with its closest relative, Azonexus caeni. Strain MPT was enriched in the cathodic chamber of a perchlorate-reducing bioelectrical reactor (BER) and together with an additional strain, CR (99% 16S rRNA gene identity), had 97% 16S rRNA gene identity with Propionivibrio limicola. The use of perchlorate and other electron acceptors distinguished strains MPT and CR from P. limicola physiologically. Strain LT-1T had differences in electron donor utilization and optimum growth temperatures from A. caeni. Strains LT-1T and MP(T) are the first DPRB to be described in the Betaproteobacteria outside of the Dechloromonas and Azospira genera. On the basis of phylogenetic and physiological features, strain LT-1T represents a novel genus in the Rhodocyclaceae; strain MPT represents a novel species within the genus Propionivibrio. The names Dechlorobacter hydrogenophilus gen. nov., sp. nov and Propionivibrio militaris sp. nov. are proposed.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation
Grant/Contract Number:
AC02-05CH11231; DACA72-00-C-0016
OSTI ID:
1619060
Journal Information:
Applied Microbiology and Biotechnology, Vol. 86, Issue 1; ISSN 0175-7598
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 43 works
Citation information provided by
Web of Science

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Cited By (18)

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Identification of a parasitic symbiosis between respiratory metabolisms in the biogeochemical chlorine cycle journal February 2020
Review on Fate, Toxicity, and Remediation of Perchlorate journal April 2015
The Perchlorate Reduction Genomic Island: Mechanisms and Pathways of Evolution by Horizontal Gene Transfer journal October 2015
One-step production of C6–C8 carboxylates by mixed culture solely grown on CO journal January 2018
Fermentative Bacteria Influence the Competition between Denitrifiers and DNRA Bacteria journal September 2017
DMSO Reductase Family: Phylogenetics and Applications of Extremophiles
  • Miralles-Robledillo, Jose María; Torregrosa-Crespo, Javier; Martínez-Espinosa, Rosa María
  • International Journal of Molecular Sciences, Vol. 20, Issue 13 https://doi.org/10.3390/ijms20133349
journal July 2019
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Figures / Tables (6)