Results 71 to 80 of about 6,941 (172)

Cultivation of Electrogens With Cost‐Effective Membrane‐Less Bioreactor Designs

open access: yesFuel Cells, Volume 26, Issue 3, June 2026.
ABSTRACT Rational improvements in bioreactor design for scaling up power generation in microbial fuel cells (MFCs) are discussed in this study. The potential of autoclavable MFCs for isolating electroactive bacteria that produce sustainable electricity is being investigated.
Aswathi Mahesh, Ganesh Mahidhara
wiley   +1 more source

Cultivation of Autotrophic Ammonia-Oxidizing Archaea from Marine Sediments in Coculture with Sulfur-Oxidizing Bacteria

open access: yes, 2010
The role of ammonia-oxidizing archaea (AOA) in nitrogen cycling in marine sediments remains poorly characterized. In this study, we enriched and characterized AOA from marine sediments. Group I.1a crenarchaea closely related to those identified in marine
Byoung-Joon Park   +5 more
core   +1 more source

Ammonia‐oxidizing archaea and nitrite‐oxidizing nitrospiras in the biofilter of a shrimp recirculating aquaculture system [PDF]

open access: yes, 2013
This study analysed the nitrifier community in the biofilter of a zero discharge, recirculating aquaculture system ( RAS ) for the production of marine shrimp in a low density (low ammonium production) system.
Raskin, Lutgarde   +3 more
core   +1 more source

Metagenomic Evidence for the Presence of Comammox Nitrospira-Like Bacteria in a Drinking Water System

open access: yesmSphere, 2016
We report metagenomic evidence for the presence of a Nitrospira-like organism with the metabolic potential to perform the complete oxidation of ammonia to nitrate (i.e., it is a complete ammonia oxidizer [comammox]) in a drinking water system.
Ameet J. Pinto   +5 more
doaj   +1 more source

Hydrological seasonality shapes microbial biomass and diversity in an equatorial estuarine mangrove

open access: yesLimnology and Oceanography, Volume 71, Issue 6, June 2026.
Abstract Mangroves are pantropical marine forests rooted in soft sediments and subject to pronounced seasonal variability. However, the effects of these hydrological fluctuations on root‐associated prokaryotic communities remain poorly understood, particularly in underexplored regions like the Guianas.
Emma Jamon‐Haon   +11 more
wiley   +1 more source

Ammonia oxidation coupled to CO2 fixation by Archaea and Bacteria in an agricultural soil

open access: yes, 2011
Ammonia oxidation is an essential part of the global nitrogen cycling and was long thought to be driven only by bacteria. Recent findings expanded this pathway also to the archaea.
Dumont, Marc G.   +11 more
core   +1 more source

Functional Metagenomics Insights Into the Allium ampeloprasum Rhizosphere Microbiome Under Different Fertilization Regimes

open access: yesMicrobiologyOpen, Volume 15, Issue 3, June 2026.
Shotgun metagenomic sequencing was used to characterize the functional potential of the Allium ampeloprasum rhizosphere microbiome under chemical fertilizer (G1), biofertilizer (G2), and unfertilized (Bulk) soil (G3) management practices. This study revealed that different fertilization regimes altered microbial functional profiles.
Oluwaseun Emmanuel Shittu   +2 more
wiley   +1 more source

Deglacial Permafrost Organic Carbon Delivery at the Northern Svalbard Continental Margin: Insights From Tetraether Lipids and Plant Biomarkers

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 6, June 2026.
Abstract Degradation of Arctic permafrost due to global warming and sea level rise could trigger positive feedbacks, exacerbating climate change. However, uncertainties remain on how permafrost systems may respond because we lack a complete understanding of the permafrost‐climate feedback.
Mathia Sabino   +6 more
wiley   +1 more source

Influences of soil properties on archaeal diversity and distribution in the McMurdo Dry Valleys, Antarctica

open access: yes, 2011
The Antarctic Dry Valleys are characterized by extremely low temperatures, arid conditions, high salinity and virtual absence of plants. Therefore, food webs of these microbially dominated soils are among the simplest on earth making these mineral soils ...
Richter, Ingrid
core  

The Elbe Estuary Microbiome Shifts With Salinity and Discharge and Depends on Fresh Organic Matter and Nutrient Availability

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 3, June 2026.
Microbial diversity within the Elbe Estuary was found to be more strongly governed by seasonal variability, salinity, and discharge than by spatial heterogeneity. Oligohaline regions sustain high diversity, while nutrient and redox conditions drive functional shifts.
Vanessa Russnak   +4 more
wiley   +1 more source

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