Results 121 to 130 of about 31,651 (247)

Biochar addition affected the dynamics of ammonia oxidizers and nitrification in microcosms of a coastal alkaline soil [PDF]

open access: yes, 2014
Biochar amendments have frequently been reported to alter microbial communities and biogeochemical processes in soils. However, the impact of biochar application on bacterial (AOB) and archaeal ammonia oxidizers (AOA) remains poorly understood.
Chang, Scott X.   +6 more
core   +1 more source

Freshwater Recirculating Aquaculture System Operations Drive Biofilter Bacterial Community Shifts around a Stable Nitrifying Consortium of Ammonia-Oxidizing Archaea and Comammox Nitrospira

open access: yesFrontiers in Microbiology, 2017
Recirculating aquaculture systems (RAS) are unique engineered ecosystems that minimize environmental perturbation by reducing nutrient pollution discharge. RAS typically employ a biofilter to control ammonia levels produced as a byproduct of fish protein
Ryan P. Bartelme   +2 more
semanticscholar   +1 more source

Nexus of Whey Proteins, Gut Dysbiosis, and Colonic Health

open access: yesFood Science &Nutrition, Volume 14, Issue 2, February 2026.
Whey proteins possess antimicrobial and prebiotic properties that modulate gut microbiota by promoting beneficial bacteria like Bifidobacterium while suppressing pathogens. This modulation enhances short‐chain fatty acid production and strengthens intestinal barrier integrity, potentially alleviating dysbiosis‐related conditions such as colitis and ...
Tolulope Joshua Ashaolu   +4 more
wiley   +1 more source

Phylogenetic characterization and quantification of ammonia-oxidizing archaea and bacteria from Lake Kivu in a long-term microcosm incubation [PDF]

open access: yes, 2013
A microcosm cultivation-based method was set up to investigate the growth of ammonia-oxidizing archaea (AOA), isolated from a water sample acquired at a depth of 50 m from the northern basin of Lake Kivu.
Anna Plasencia   +3 more
core   +3 more sources

Ammonia‐oxidizing archaea release a suite of organic compounds potentially fueling prokaryotic heterotrophy in the ocean

open access: yesbioRxiv, 2019
Ammonia-oxidizing archaea (AOA) constitute a considerable fraction of microbial biomass in the global ocean, comprising 20-40% of the ocean’s prokaryotic plankton and thus play an important role in global nitrogen cycle.
Barbara Bayer   +6 more
semanticscholar   +1 more source

The role of the gut microbiome in the regulation of high‐altitude adaptation

open access: yesiMeta, Volume 5, Issue 1, February 2026.
This study is the first to elucidate mechanisms of high‐altitude adaptation from the perspective of the rumen ecosystem by using indigenous yaks and Holstein cows that have lived at high altitude since birth as comparative models. Through a systematic comparison of their rumen ecology using multi‐omics approaches—including rumen metagenomics ...
Xinyu Zhang   +6 more
wiley   +1 more source

Soil Microbial Communities Changes Along Depth and Contrasting Facing Slopes at the Parque Nacional La Campana, Chile

open access: yesMicroorganisms
The Parque Nacional La Campana (PNLC) was recently recognized for its high soil surface microbial richness. Here, we explored the microbial community structure in soil profiles from contrasting facing slopes where sclerophyllous forest (SF) and ...
Carolina Quinteros-Urquieta   +3 more
doaj   +1 more source

Depth-related distribution of a key gene of the tetraether lipid biosynthetic pathway in marine Thaumarchaeota [PDF]

open access: yes, 2014
The distribution of isoprenoid glycerol dialkyl glycerol tetraethers (GDGT) lipids synthesized by Thaumarchaeota has been shown to be temperature-dependent in world oceans.
Schouten, S.   +2 more
core   +1 more source

Progress in RNA‐Targeted Therapeutics for Human Diseases

open access: yesMedComm, Volume 7, Issue 2, February 2026.
RNA‐targeted therapies are revolutionizing molecular medicine by transitioning from a “protein‐centric” focus to an “RNA‐regulatory network” approach. Leveraging RNA's diverse roles in gene regulation, signaling, and epigenetic modifications, advanced platforms such as ASOs, siRNA, miRNA, mRNA, aptamers, shRNA, and CRISPR/Cas systems are enabling ...
Wangzheqi Zhang   +10 more
wiley   +1 more source

Vertical segregation and phylogenetic characterization of ammonia-oxidizing bacteria and archaea in the sediment of a freshwater aquaculture pond

open access: yesFrontiers in Microbiology, 2016
Pond aquaculture is the major freshwater aquaculture method in China. Ammonia-oxidizing communities inhabiting pond sediments play an important role in controlling culture water quality.
Shimin eLu   +10 more
doaj   +1 more source

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