Results 61 to 70 of about 471 (140)

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

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

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

Synergetic Interactions of Nanoscale Zero-Valent Iron (nZVI) and Anaerobic Bacteria in Groundwater Remediation: A Review

Eurasian Journal of Science and Engineering, 2022
During the last century, large scale production of halogenated organic compounds and heavy metals, specifically by industrial processes, and the inappropriate management of those products caused a wide spreading of a variety of hazardous contaminants ...
Muayad Shawkat Sheikh, Kamal Kolo, Samir Mustafa Hamad   +2 more
doaj  

Comparative genomics reveals Dehalogenimonas genome dynamics and evolutionary trajectories toward organohalide respiration

Applied and Environmental Microbiology
Dehalogenimonas spp. specialize in organohalide respiration, a metabolism that features reductive dehalogenase (RDase) as the key catalyst, yet their evolutionary history and adaptation to halogenated substrates are largely unknown. Here, we surveyed the
Yiru Cui, Xiuying Li, Xiaocui Li, Jingjing Wang, Huijuan Jin, Ke Shi, Jun Yan   +6 more
doaj   +1 more source

Validation of an integrative methodology to assess and monitor reductive dechlorination of chlorinated ethenes in contaminated aquifers

Frontiers in Environmental Science, 2016
Bioremediation of tetra-and trichloroethene-contaminated aquifers is frequently hampered due to incomplete dechlorination to the more toxic dichloroethene (DCE) and vinyl chloride (VC), indicating insufficient knowledge about the biological mechanisms ...
Sonia-Estelle eTarnawski, Pierre eRossi, Maria V. Brennerova, Monika eStavelova, Christof eHolliger   +4 more
doaj   +1 more source

Synergistic mechanism of modified nZVI and Citrobacter reshaping sludge microbiome drives co-removal of HBCD and nutrients in municipal wastewater

Environmental Chemistry and Ecotoxicology
Hexabromocyclododecane (HBCD), a persistent and toxic brominated flame retardant, poses severe ecological and health risks due to its bioaccumulation and endocrine-disrupting effects.
Tianyu Li, Yuzhe He, Weixian Zhang, Xingxing Peng   +3 more
doaj   +1 more source

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

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   +1 more source