Agricultural management and plant selection interactively affect rhizosphere microbial community structure and nitrogen cycling. [PDF]
, 2019 BACKGROUND:Rhizosphere microbial communities are key regulators of plant performance, yet few studies have assessed the impact of different management approaches on the rhizosphere microbiomes of major crops.
Brisson, Vanessa L +3 more
core +1 more source
Planktonic and sediment-associated aerobic methanotrophs in two seep systems along the North American margin [PDF]
, 2008 Methane vents are of significant geochemical and ecological importance. Notable progress has been made towards understanding anaerobic methane oxidation in marine sediments, however, the diversity and distribution of aerobic methanotrophs in the water ...
Orphan, Victoria J. +2 more
core +4 more sources
Journal of Microbiology and Biotechnology, 2013 Global warming will have far-reaching effects on our ecosystem. However, its effects on Antarctic soils have been poorly explored. To assess the effects of warming on microbial abundance and community composition, we sampled Antarctic soils from the King George Island in the Antarctic Peninsula and incubated these soils at elevated temperatures of 5°C ...
Jiwon, Han +4 more
openaire +2 more sources
Community analysis of betaproteobacterial ammonia-oxidizing bacteria using the amoCAB operon [PDF]
, 2009 The genes and intergenic regions of the amoCAB operon were analyzed to establish their potential as molecular markers for analyzing ammonia-oxidizing betaproteobacterial (beta-AOB) communities.
Johannes F. Imhoff +5 more
core +6 more sources
Nanosilver inhibits nitrification and reduces ammonia‐oxidising bacterial but not archaeal amoA gene abundance in estuarine sediments [PDF]
Environmental Microbiology, 2016 Summary Silver nanoparticles (AgNPs) enter estuaries via wastewater treatment effluents, where they can inhibit microorganisms, because of their antimicrobial properties. Ammonia‐oxidising bacteria (AOB) and archaea (AOA) are involved in the first step of nitrification and are important to ecosystem function ...
Beddow, Jessica +7 more
openaire +3 more sources
Environmental factors shaping the ecological niches of ammonia-oxidizing archaea [PDF]
, 2009 For more than 100 years it was believed that bacteria were the only group responsible for the oxidation of ammonia. However, recently, a new strain of archaea bearing a putative ammonia monooxygenase subunit A (amoA) gene and able to oxidize ammonia was ...
Boon, N. +4 more
core +1 more source
The ammonia monooxygenase structural gene amoA as a functional marker: molecular fine-scale analysis of natural ammonia-oxidizing populations [PDF]
Applied and Environmental Microbiology, 1997 The naturally occurring genetic heterogeneity of autotrophic ammonia-oxidizing populations belonging to the beta subclass of the Proteobacteria was studied by using a newly developed PCR-based assay targeting a partial stretch of the gene which encodes the active-site polypeptide of ammonia monooxygenase (amoA).
Rotthauwe, J., Witzel, K., Liesack, W.
openaire +4 more sources
Hayati Journal of Biosciences, 2018 The role of ammonia-oxidizing bacteria and archaea was evaluated using amoA gene in a freshwater recirculating system. Broken earthen pot pieces (BEP) were used as filter bed material.
Cherita Devi Khangembam +2 more
doaj +1 more source
Legume crop rotation suppressed nitrifying microbial community in a sugarcane cropping soil [PDF]
, 2017 Nitrifying microorganisms play an important role in nitrogen (N) cycling in agricultural soils as nitrification leads to accumulation of nitrate (NO3 −) that is readily lost through leaching and denitrification, particularly in high rainfall regions ...
Halpin, Neil +3 more
core +4 more sources
Frontiers in Microbiology, 2017 Marine ecosystems are exposed to a range of human-induced climate stressors, in particular changing carbonate chemistry and elevated sea surface temperatures as a consequence of climate change. More research effort is needed to reduce uncertainties about
Ashleigh R. Currie +9 more
doaj +1 more source