Results 21 to 30 of about 149,167 (166)

Organohalide respiration in pristine environments: implications for the natural halogen cycle [PDF]

Environmental Microbiology, 2017
Summary Halogenated organic compounds, also termed organohalogens, were initially considered to be of almost exclusively anthropogenic origin. However, over 5000 naturally synthesized organohalogens are known today. This has also fuelled the hypothesis that the natural and ancient origin of organohalogens could have primed development
Atashgahi, Siavash, Häggblom, Max M., Smidt, Hauke   +2 more
openaire   +3 more sources

Cofactor binding interactions with reductive dehalogenase shape cobamide utilization in organohalide-respiring bacteria [PDF]

Communications Biology
Selective utilization of certain cobamides, the vitamin B12-family enzyme cofactors, is a common physiological trait in organohalide respiration, an essential biogeochemical process relevant to global halogen cycling and the bioremediation of chlorinated
Huijuan Jin, Jingjing Wang, Xiuying Li, Yiru Cui, Xiaocui Li, Huan He, Ke Shi, Siqi Huang, Tongyue Zhou, Frank E. Löffler, Jun Yan   +10 more
doaj   +2 more sources

Environmental considerations and bioremediation applications of the metal-, nitrate-, and organohalide-respiring bacterium Trichlorobacter lovleyi (formerly Geobacter lovleyi) [PDF]

Applied and Environmental Microbiology
Trichlorobacter lovleyi (formerly Geobacter lovleyi) is a gram-negative bacterium that can couple the oxidation of acetate or other small organic acids with the reduction of soluble and insoluble electron acceptors, such as chlorinated solvents, heavy ...
Kelsie R. Herzer, César I. Torres, Rosa Krajmalnik-Brown, Anca G. Delgado   +3 more
doaj   +2 more sources

Unveiling organohalide respiration potential in River Nile sediments via 16S rRNA gene amplicon sequencing of endogenous bacterial communities [PDF]

BMC Microbiology
Background Industrial waste, agricultural runoff and untreated sewage contaminate the Nile, leaving a toxic legacy in its sediments. Organohalides-polluted sediment in particular poses serious public health risks and detrimental effects on aquatic life ...
Hwayda Soliman, Mohamed Ismaeil, Hoda Soussa, Wael S. El-Sayed   +3 more
doaj   +2 more sources

Organohalide respiration in Firmicutes: energy metabolism and transcription regulation [PDF]

, 2021
Organohalides are a class of compounds often considered as persistent pollutants and harmful to environmental and human health. Some bacteria, among which are representatives from the Firmicutes phylum, are capable of using these compounds as terminal acceptors in a process called organohalide respiration (OHR).
Willemin, Mathilde Stéphanie
openaire   +3 more sources

Energiekonservierung über Organohalid-Respiration in Sulfurospirillum multivorans [PDF]

, 2018
The epsilonproteobacterium Sulfurospirillum multivorans is able to couple the reductive dechlorination of tetrachloroethene (PCE) to energy conservation via electron transport phosphorylation (organohalide respiration). The key enzyme of this anaerobic respiration is the reductive PCE dehalogenase (PceA).
Gadkari, Jennifer
openaire   +2 more sources

Metagenomic 16S rRNA analysis and predictive functional profiling revealed intrinsic organohalides respiration and bioremediation potential in mangrove sediment [PDF]

BMC Microbiology
Background Mangrove sediment microbes are increasingly attracting scientific attention due to their demonstrated capacity for diverse bioremediation activities, encompassing a wide range of environmental contaminants.
Sultan M. Alsharif, Mohamed Ismaeil, Ali M. Saeed, Wael S. El-Sayed   +3 more
doaj   +2 more sources

Vitamin B12 as a source of variability in isotope effects for chloroform biotransformation by Dehalobacter

MicrobiologyOpen
Carbon and chlorine isotope effects for biotransformation of chloroform by different microbes show significant variability. Reductive dehalogenases (RDase) enzymes contain different cobamides, affecting substrate preferences, growth yields, and ...
Elizabeth Phillips, Katherine Picott, Steffen Kümmel, Olivia Bulka, Elizabeth Edwards, Po‐Hsiang Wang, Matthias Gehre, Ivonne Nijenhuis, Barbara S. Lollar   +8 more
doaj   +2 more sources

Organohalide respiration by a Desulforhopalus -dominated community

The ISME Journal, 2023
Abstract Despite the fact that several potential organohalide-respiring bacteria (OHRB) were discovered in metagenome-assembled genomes (MAGs) in our previous study of marine sediments from Aarhus Bay, delineation of their roles and interactions are yet to be disentangled.
Zhang C, Atashgahi S, Bosma TN, Smidt H.
europepmc   +3 more sources

Genome-resolved transcriptomics reveals novel PCE-dehalogenating bacteria from Aarhus Bay sediments [PDF]

mSystems
Organohalide-respiring bacteria (OHRB) are keystone microbes in bioremediation of sites contaminated with organohalides and in natural halogen cycling.
Chen Zhang, Tom N. P. Bosma, Siavash Atashgahi, Hauke Smidt   +3 more
doaj   +2 more sources