Results 51 to 60 of about 528 (128)

Impact of Anaerobic Cold Storage on Subseafloor Microbial Communities

Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 12, December 2025.
Abstract Sediment cores recovered from the deep sea often cannot be sampled for microbiological analysis immediately due to the need for core splitting and processing for subsequent onboard measurements and core storage. Consequently, sections are often stored at 4°C under anaerobic conditions for extended periods.
Tastuhiko Hoshino, Kana Jitsuno, Yohei Nishikawa, Ken Ikehara, Michael Strasser, Haruko Takeyama, Fumio Inagaki   +6 more
wiley   +1 more source

Thermochemical Recycling and Degradation Strategies of Halogenated Polymers (F−, Cl−, Br−): A Holistic Review Coupled with Mechanistic Insights

The Chemical Record, Volume 25, Issue 6, June 2025.
This review aims to comprehensively address recent degradation techniques (physical, chemical and biological) of halogenated waste polymers with a prime focus on thermal degradation techniques. Exploiting various metal oxides during co‐pyrolysis is deemed a viable solution for recycling halogenated polymeric waste.
Mohamed Shafi Kuttiyathil, Labeeb Ali, Mohammednoor Altarawneh   +2 more
wiley   +1 more source

Insights into the biodegradation process of 2,4,5-trichlorophenoxyacetic acid under anaerobic condition

Ecological Processes
Background Chlorophenoxy compounds represent a group of selective herbicides widely used around the world. Chlorophenoxy herbicides are toxic, chemically stable, and can migrate into groundwater through soil leaching, posing a significant threat to ...
Xiuying Li, Yan Lv, Yuanzhi Wang, Zhipeng Zhang, Jingjing Wang, Huijuan Jin, Tongyue Zhou, Yiru Cui, Yi Yang, Jun Yan   +9 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

Metabarcoding reveals unique microbial mat communities and evidence of biogeographic influence in low‐oxygen, high‐sulfur sinkholes and springs

Ecology and Evolution, Volume 14, Issue 3, March 2024.
Groundwater‐fed underwater sinkholes and springs create habitats with high‐sulfur, low‐oxygen conditions. Multi‐marker metabarcoding was used to describe microbial mat communities in these extreme aquatic habitats. Unique bacterial and diatom communities were found in five springs in Michigan and Florida, with water parameters and biogeography ...
Davis Fray, Callahan A. McGovern, Dale A. Casamatta, Bopaiah A. Biddanda, Sarah E. Hamsher   +4 more
wiley   +1 more source

The proton/electron ration of the menaquinone-dependent electron transport from dihydrogen to tetrachloroethene in "Dehalobacter restrictus" [PDF]

Journal of Bacteriology, 1996
In the anaerobic respiration chain of "Dehalobacter restrictus," dihydrogen functioned as the electron donor and tetrachloroethene (PCE) functioned as the electron acceptor. The hydrogenase faced the periplasm, and the PCE reductase faced the cytoplasmic side of the membrane. Both activities were associated with the cytoplasmic membrane.
Schumacher W, Holliger C
openaire   +3 more sources

Refined experimental annotation reveals conserved corrinoid autotrophy in chloroform-respiring Dehalobacter isolates [PDF]

The ISME Journal, 2016
Abstract Two novel chlorinated alkane-respiring Dehalobacter restrictus strains CF and DCA were isolated from the same enrichment culture, ACT-3, and characterized. The closed genomes of these highly similar sister strains were previously assembled from metagenomic sequence data and annotated.
Po-Hsiang Wang, Shuiquan Tang, Kayla Nemr, Robert Flick, Jun Yan, Radhakrishnan Mahadevan, Alexander F Yakunin, Frank E Löffler, Elizabeth A Edwards   +8 more
openaire   +2 more sources

Identification of Dehalobacter reductive dehalogenases that catalyse dechlorination of chloroform, 1,1,1-trichloroethane and 1,1-dichloroethane [PDF]

Philosophical Transactions of the Royal Society B: Biological Sciences, 2013
Two novel reductive dehalogenases (RDases) that are highly similar to each other but catalyse distinct dechlorination reactions were identified from Dehalobacter -containing mixed cultures.
Shuiquan, Tang, Elizabeth A, Edwards
openaire   +2 more sources

Heterologous expression, purification and cofactor reconstitution of the reductive dehalogenase PceA from Dehalobacter restrictus

Protein Expression and Purification, 2012
Organohalide respiration is used by a limited set of anaerobic bacteria to derive energy from the reduction of halogenated organic compounds. The enzymes that catalyze the reductive dehalogenation reaction, the reductive dehalogenases, represent a novel and distinct class of cobalamin and Fe-S cluster dependent enzymes.
Sjuts H, Fisher K, Dunstan MS, Rigby SE, Leys D.   +4 more
openaire   +2 more sources

Characterization of the electron-accepting part of the organohalide respiration chain of Dehalobacter and Desulfitobacterium

, 2022
Organohalide respiration (OHR) is a bacterial anaerobic process that use halogenated compounds, e.g. tetrachloroethene (PCE), as terminal electron acceptors. D. restrictus strain PER-K23, an obligate OHR bacterium (OHRB), and D. hafniense strain TCE1, a bacterium with a versatile metabolism, harbour the pceABCT gene cluster, which represents our model ...
openaire   +1 more source