Results 11 to 20 of about 276,381 (315)

Generation of Comprehensive Ecosystem-Specific Reference Databases with Species-Level Resolution by High-Throughput Full-Length 16S rRNA Gene Sequencing and Automated Taxonomy Assignment (AutoTax)

mBio, 2020
High-throughput 16S rRNA gene amplicon sequencing is an essential method for studying the diversity and dynamics of microbial communities. However, this method is presently hampered by the lack of high-identity reference sequences for many environmental ...
Morten Simonsen Dueholm, Kasper Skytte Andersen, Simon Jon McIlroy, Jannie Munk Kristensen, Erika Yashiro, Søren Michael Karst, Mads Albertsen, Per Halkjær Nielsen   +7 more
doaj   +1 more source

Directed Evolution of Microbial Communities

Annual Review of Biophysics, 2020
Directed evolution is a form of artificial selection that has been used for decades to find biomolecules and organisms with new or enhanced functional traits. Directed evolution can be conceptualized as a guided exploration of the genotype–phenotype map, where genetic variants with desirable phenotypes are first selected and then mutagenized to search ...
Rebolleda-Gomez, Maria, Chang, Chang-Yu, Estrela, Sylvie, Vila, Jean, Sanchez, Alvaro, Diaz-Colunga, Juan   +5 more
openaire   +6 more sources

Long-Read Metagenome-Assembled Genomes Improve Identification of Novel Complete Biosynthetic Gene Clusters in a Complex Microbial Activated Sludge Ecosystem

mSystems, 2022
Microorganisms produce a wide variety of secondary/specialized metabolites (SMs), the majority of which are yet to be discovered. These natural products play multiple roles in microbiomes and are important for microbial competition, communication, and ...
Roberto Sánchez-Navarro, Matin Nuhamunada, Omkar S. Mohite, Kenneth Wasmund, Mads Albertsen, Lone Gram, Per H. Nielsen, Tilmann Weber, Caitlin M. Singleton   +8 more
doaj   +1 more source

A Distinct, Flocculent, Acidogenic Microbial Community Accompanies Methanogenic Granules in Anaerobic Digesters

Microbiology Spectrum, 2021
The formation of dense, well-settling methanogenic granules is essential for the operation of high-rate, up-flow anaerobic bioreactors used for wastewater treatment.
Simon Mills, Anna Christine Trego, Piet N. L. Lens, Umer Zeeshan Ijaz, Gavin Collins   +4 more
doaj   +1 more source

Diffuse flow environments within basalt- and sediment-based hydrothermal vent ecosystems harbor specialized microbial communities [PDF]

, 2013
Hydrothermal vents differ both in surface input and subsurface geochemistry. The effects of these differences on their microbial communities are not clear.
Lisa eZeigler Allen, Charles K. Lee, Polson, Shawn W., Shannon J. Williamson, Zeigler Allen, Lisa, K Eric Wommack, K. Eric Wommack, Shawn W. Polson, Campbell, Barbara J., S. Craig Cary, Barbara J. Campbell, Shawn W Polson, Lee, Charles Kai-Wu, Williamson, Shannon J., Cary, S. Craig, Barbara J Campbell, Lisa Zeigler Allen, Barbara J. Campbell, Wommack, K. Eric   +18 more
core   +1 more source

Candidatus Amarolinea and Candidatus Microthrix Are Mainly Responsible for Filamentous Bulking in Danish Municipal Wastewater Treatment Plants

Frontiers in Microbiology, 2020
Filamentous bulking is a common serious operational problem leading to deteriorated sludge settling that has long been observed in activated sludge biological wastewater treatment systems.
Marta Nierychlo, Simon J. McIlroy, Simon J. McIlroy, Sergey Kucheryavskiy, Chenjing Jiang, Anja S. Ziegler, Zivile Kondrotaite, Mikkel Stokholm-Bjerregaard, Mikkel Stokholm-Bjerregaard, Per Halkjær Nielsen   +9 more
doaj   +1 more source

Environmental shaping of codon usage and functional adaptation across microbial communities. [PDF]

, 2013
Microbial communities represent the largest portion of the Earth's biomass. Metagenomics projects use high-throughput sequencing to survey these communities and shed light on genetic capabilities that enable microbes to inhabit every corner of the ...
Roller, Masa, Vlahovicek, Kristian, Nagy, István, Lucic, Vedran, Perica, Tina; https://orcid.org/   +4 more
core   +1 more source

Growth and Break-Up of Methanogenic Granules Suggests Mechanisms for Biofilm and Community Development

Frontiers in Microbiology, 2020
Methanogenic sludge granules are densely packed, small, spherical biofilms found in anaerobic digesters used to treat industrial wastewaters, where they underpin efficient organic waste conversion and biogas production.
Anna Christine Trego, Anna Christine Trego, Evan Galvin, Conor Sweeney, Sinéad Dunning, Cillian Murphy, Simon Mills, Corine Nzeteu, Christopher Quince, Stephanie Connelly, Umer Zeeshan Ijaz, Gavin Collins, Gavin Collins, Gavin Collins   +13 more
doaj   +1 more source

Activated Sludge Microbial Community Assembly: The Role of Influent Microbial Community Immigration

Applied and Environmental Microbiology, 2023
Abstract Wastewater treatment plants (WWTPs) are host to diverse microbial communities and receive a constant influx of microbes from influent wastewater, however the impact of immigrants on the structure and activities of the activated sludge (AS) microbial community remains unclear.
Claire Gibson, Shameem Jauffur, Bing Guo, Dominic Frigon   +3 more
openaire   +3 more sources

Airborne bacterial populations above desert soils of the McMurdo Dry Valleys, Antarctica [PDF]

, 2014
Bacteria are assumed to disperse widely via aerosolized transport due to their small size and resilience. The question of microbial endemicity in isolated populations is directly related to the level of airborne exogenous inputs, yet this has proven hard
Bottos, Eric M., Pointing, Stephen B., Stephen C. Cary, Cary, S. Craig, Stephen B. Pointing, Peyman Zawar-Reza, Woo, Anthony C., Zawar-Reza, Peyman, Eric M. Bottos, Anthony C. Woo   +9 more
core   +1 more source