Results 31 to 40 of about 654 (126)

Metagenomic Analysis Reveals Microbial Interactions at the Biocathode of a Bioelectrochemical System Capable of Simultaneous Trichloroethylene and Cr(VI) Reduction

open access: yesFrontiers in Microbiology, 2021
Bioelectrochemical systems (BES) are attractive and versatile options for the bioremediation of organic or inorganic pollutants, including trichloroethylene (TCE) and Cr(VI), often found as co-contaminants in the environment.
Bruna Matturro   +4 more
doaj   +1 more source

Into the darkness: the ecologies of novel ‘microbial dark matter’ phyla in an Antarctic lake

open access: yesEnvironmental Microbiology, Volume 24, Issue 5, Page 2576-2603, May 2022., 2022
Summary Uncultivated microbial clades (‘microbial dark matter’) are inferred to play important but uncharacterized roles in nutrient cycling. Using Antarctic lake (Ace Lake, Vestfold Hills) metagenomes, 12 metagenome‐assembled genomes (MAGs; 88%–100% complete) were generated for four ‘dark matter’ phyla: six MAGs from Candidatus Auribacterota ...
Timothy J. Williams   +3 more
wiley   +1 more source

Novel nitrite reductase domain structure suggests a chimeric denitrification repertoire in the phylum Chloroflexi

open access: yesMicrobiologyOpen, Volume 11, Issue 1, February 2022., 2022
Nitrite reductase (Nir) and nitric oxide reductase (NOR) are the two central enzymes in denitrification, a key process in the global nitrogen cycle. This study identifies a novel Nir domain architecture and expanded diversity in a rarely reported nitric oxide reductase variant (eNOR) in members of the bacterial phylum Chloroflexi.
Sarah L. Schwartz   +5 more
wiley   +1 more source

Inhibitory effects of metal ions on reductive dechlorination of polychlorinated biphenyls and perchloroethene in distinct organohalide-respiring bacteria

open access: yesEnvironment International, 2020
Bioremediation of sites co-contaminated with organohalides and metal pollutants may have unsatisfactory performance, since metal ions can potentially inhibit organohalide respiration.
Qihong Lu   +6 more
doaj   +1 more source

‘Cry‐for‐help’ in contaminated soil: a dialogue among plants and soil microbiome to survive in hostile conditions

open access: yesEnvironmental Microbiology, Volume 23, Issue 10, Page 5690-5703, October 2021., 2021
Summary An open question in environmental ecology regards the mechanisms triggered by root chemistry to drive the assembly and functionality of a beneficial microbiome to rapidly adapt to stress conditions. This phenomenon, originally described in plant defence against pathogens and predators, is encompassed in the ‘cry‐for‐help’ hypothesis.
Eleonora Rolli   +5 more
wiley   +1 more source

Update of the risk assessment of hexabromocyclododecanes (HBCDDs) in food

open access: yesEFSA Journal, Volume 19, Issue 3, March 2021., 2021
Abstract The European Commission asked EFSA to update its 2011 risk assessment on hexabromocyclododecanes (HBCDDs) in food. HBCDDs, predominantly mixtures of the stereoisomers α‐, β‐ and γ‐HBCDD, were widely used additive flame retardants. Concern has been raised because of the occurrence of HBCDDs in the environment, food and in humans.
EFSA Panel on Contaminants in the Food Chain (CONTAM)   +23 more
wiley   +1 more source

Microbial Enzymes Used in Bioremediation

open access: yesJournal of Chemistry, Volume 2021, Issue 1, 2021., 2021
Emerging pollutants in nature are linked to various acute and chronic detriments in biotic components and subsequently deteriorate the ecosystem with serious hazards. Conventional methods for removing pollutants are not efficient; instead, they end up with the formation of secondary pollutants.
Sobika Bhandari   +11 more
wiley   +1 more source

Coupled Adsorption and Biodegradation of Trichloroethylene on Biochar from Pine Wood Wastes: A Combined Approach for a Sustainable Bioremediation Strategy

open access: yesMicroorganisms, 2022
Towards chlorinated solvents, the effectiveness of the remediation strategy can be improved by combining a biological approach (e.g., anaerobic reductive dechlorination) with chemical/physical treatments (e.g., adsorption).
Marta M. Rossi   +4 more
doaj   +1 more source

Complete genome sequence of <i>Dehalococcoides mccartyi</i> strain NK, an acid-tolerant organohalide-respiring bacterium. [PDF]

open access: yesMicrobiol Resour Announc
ABSTRACT Dehalococcoides mccartyi strain NK reductively dechlorinates tetrachloroethene to ethene at pH 5.5. The metagenome-assembled strain NK genome is 1.51 Mb in size with a G + C content of 48.6%.
Cui Y   +11 more
europepmc   +3 more sources

Impact of Ammonium on Syntrophic Organohalide-Respiring and Fermenting Microbial Communities

open access: yesmSphere, 2016
Syntrophic interactions between organohalide-respiring and fermentative microorganisms are critical for effective bioremediation of halogenated compounds.
Anca G. Delgado   +4 more
doaj   +1 more source

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