Results 61 to 70 of about 487 (138)

Spatial and temporal dynamics of organohalide-respiring bacteria in a heterogeneous PCE–DNAPL source zone

Journal of Contaminant Hydrology, 2015
Effective treatment of sites contaminated with dense non-aqueous phase liquids (DNAPLs) requires detailed understanding of the microbial community responses to changes in source zone strength and architecture. Changes in the spatial and temporal distributions of the organohalide-respiring Dehalococcoides mccartyi (Dhc) strains and Geobacter lovleyi ...
Natalie L, Cápiro, Frank E, Löffler, Kurt D, Pennell   +2 more
openaire   +3 more sources

Metagenomic- and Cultivation-Based Exploration of Anaerobic Chloroform Biotransformation in Hypersaline Sediments as Natural Source of Chloromethanes

Microorganisms, 2020
Chloroform (CF) is an environmental contaminant that can be naturally formed in various environments ranging from forest soils to salt lakes. Here we investigated CF removal potential in sediments obtained from hypersaline lakes in Western Australia ...
Peng Peng, Yue Lu, Tom N.P. Bosma, Ivonne Nijenhuis, Bart Nijsse, Sudarshan A. Shetty, Alexander Ruecker, Alexander Umanets, Javier Ramiro-Garcia, Andreas Kappler, Detmer Sipkema, Hauke Smidt, Siavash Atashgahi   +12 more
doaj   +1 more source

Primary to post‐depositional microbial controls on the stable and clumped isotope record of shoreline sediments at Fayetteville Green Lake

Geobiology, Volume 22, Issue 4, July/August 2024.
Abstract Lacustrine carbonates are a powerful archive of paleoenvironmental information but are susceptible to post‐depositional alteration. Microbial metabolisms can drive such alteration by changing carbonate saturation in situ, thereby driving dissolution or precipitation.
Hanna C. Leapaldt, Carie M. Frantz, Juliana Olsen‐Valdez, Kathryn E. Snell, Elizabeth J. Trower, Miquela Ingalls   +5 more
wiley   +1 more source

Dechlorination and organohalide-respiring bacteria dynamics in sediment samples of the Yangtze Three Gorges Reservoir

Environmental Science and Pollution Research, 2013
Several groups of bacteria such as Dehalococcoides spp., Dehalobacter spp., Desulfomonile spp., Desulfuromonas spp., or Desulfitobacterium spp. are able to dehalogenate chlorinated pollutants such as chloroethenes, chlorobenzenes, or polychlorinated biphenyls under anaerobic conditions.
Kranzioch, I., Stoll, C., Holbach, A., Chen, H., Wang, L., Zheng, B., Norra, S., Bi, Y., Schramm, K.-W., Tiehm, A.   +9 more
openaire   +3 more sources

Functional Expression and Characterization of Tetrachloroethene Dehalogenase From Geobacter sp.

Frontiers in Microbiology, 2018
Reductive dehalogenase (RDase) consists of two parts, RdhA and RdhB. RdhA is the catalytic subunit, harboring a cobalamin cofactor and two Fe–S clusters. RdhA is anchored to the cytoplasmic membrane via the membrane anchoring subunit, RdhB.
Ryuki Nakamura, Tomohiro Obata, Ryota Nojima, Yohey Hashimoto, Keiichi Noguchi, Takahiro Ogawa, Masafumi Yohda, Masafumi Yohda   +7 more
doaj   +1 more source

Microbial Autotrophy Recorded by Carbonate Dual Clumped Isotope Disequilibrium

Geochemistry, Geophysics, Geosystems, Volume 25, Issue 6, June 2024.
Abstract The proliferation of microbial carbon fixation is a key control on the evolution of the biosphere and global carbon cycle. Most records of these metabolisms in ancient rocks come from organic matter or fossils, which are not always preserved.
Miquela Ingalls, Hanna C. Leapaldt, Max K. Lloyd   +2 more
wiley   +1 more source

Ecology and biogeography of bacterial communities associated with chloroethene-contaminated aquifers

Frontiers in Microbiology, 2012
Massive usage, along with careless handling, storage, spills and leakages made chloroethenes (CEs) one of the most abundant classes of groundwater contaminants.
Pierre eRossi, Noam eShani, Florian eKohler, Gwenaël eImfeld, Christof eHolliger   +4 more
doaj   +1 more source

Biodegradation of chloroethene compounds under microoxic conditions

Biotechnology and Bioengineering, Volume 121, Issue 3, Page 1036-1049, March 2024.
The authors examined the biodegradation of chloroethene compounds under microoxic conditions. The results indicated that partial reductive and cometabolic biodegradation of chloroethene compounds occurred concurrently. The findings of this study have significant implications for further research on chloroethene compound biodegradation, particularly in ...
Abidemi Oluranti Ojo, Julio Castillo, Errol Duncan Cason, Angel Valverde   +3 more
wiley   +1 more source

Electrochemical applications in RAS: A review

Reviews in Aquaculture, Volume 16, Issue 1, Page 86-105, January 2024.
Abstract Electrochemical water treatment for recirculating aquaculture systems (RAS) is a promising approach for replacing the biological water treatment methods and establishing a new RAS generation with improved cost‐effectiveness, lower environmental footprint, and no start‐up periods. On top of ammonia oxidation directly into N2(g), electrochemical
Raz Ben‐Asher, Youri Gendel, Ori Lahav
wiley   +1 more source

Functional genomics of corrinoid starvation in the organohalide-respiring bacterium Dehalobacter restrictus strain PER-K23

Frontiers in Microbiology, 2015
De novo corrinoid biosynthesis represents one of the most complicated metabolic pathways in nature. Organohalide-respiring bacteria (OHRB) have developed different strategies to deal with their need of corrinoid, as it is an essential cofactor of ...
Aamani eRupakula, Yue eLu, Thomas eKruse, Sjef eBoeren, Christof eHolliger, Hauke eSmidt, Julien eMaillard   +6 more
doaj   +1 more source