Results 61 to 70 of about 4,455 (169)

Linking Abundance and Activity of Ammonia‐Oxidising Bacteria and Archaea in an Agriculturally Impacted First‐Order Stream

open access: yesEnvironmental Microbiology, Volume 28, Issue 7, July 2026.
Ammonia‐oxidising archaea (AOA) and bacteria (AOB) coexist in streambed sediments, but their contributions to nitrification remain unresolved. Using field sampling, sequencing, qPCR, microcosm incubations and modelling, we show that AOB dominated nitrification in streambed sediments despite lower abundance, emphasizing the importance of distinguishing ...
Zhe Wang   +6 more
wiley   +1 more source

Disturbance-based management of ecosystem services and disservices in partial nitritation-anammox biofilms

open access: yesnpj Biofilms and Microbiomes, 2022
The resistance and resilience provided by functional redundancy, a common feature of microbial communities, is not always advantageous. An example is nitrite oxidation in partial nitritation-anammox (PNA) reactors designed for nitrogen removal in ...
Carolina Suarez   +6 more
doaj   +1 more source

Different Ferromanganese Concretion Morphologies Host Distinct Microbial Communities and Metal Accumulation Patterns in the Baltic Sea

open access: yesEnvironmental Microbiology, Volume 28, Issue 7, July 2026.
We investigated how microbes influence the metal accumulation and release in Fe‐Mn concretions from the Gulf of Finland using microcosm incubation experiments. We studied three main concretion morphotypes: crust, discoidal, and spheroidal. Microbes enhanced metal accumulation in discoidal and spheroidal morphotypes.
Renata Majamäki   +9 more
wiley   +1 more source

Nitrite Oxidizer Activity and Community Are More Responsive Than Their Abundance to Ammonium-Based Fertilizer in an Agricultural Soil

open access: yesFrontiers in Microbiology, 2020
Autotrophic nitrification is mediated by ammonia oxidizing bacteria (AOB) or ammonia oxidizing archaea (AOA) and nitrite oxidizing bacteria (NOB). Mounting studies have examined the impact of nitrogen (N) fertilization on the dynamic and diversity of AOA
Yang Ouyang   +2 more
doaj   +1 more source

Soil Microbial Diversity and Network Organization Respond to Land Use and Agricultural Inputs Worldwide

open access: yesGlobal Change Biology, Volume 32, Issue 7, July 2026.
Based on a global analysis of 1921 soil samples, we show that agricultural management acts as a powerful ecological filter reshaping microbial communities. Land use and inputs—pesticides and fertilizers—drive a functional shift toward opportunistic pathogens and fragmented, less connected microbial networks, potentially compromising soil ecosystem ...
Zaki Saati‐Santamaría   +88 more
wiley   +1 more source

Drying Halves Decomposition Rates in River Networks by Decreasing Decomposer Diversity

open access: yesGlobal Change Biology, Volume 32, Issue 7, July 2026.
Short drying events can have long‐lasting impacts on the functioning of whole river networks. We found that just a few days without water reduced leaf decomposition by up to half, because drying reduced the diversity of communities of organisms that recycle organic matter. These effects continued for months after flow returned. Hydrological connections
Rubén del Campo   +21 more
wiley   +1 more source

Competition between Nitrospira spp. and Nitrobacter spp. in nitrite‐oxidizing bioreactors [PDF]

open access: yesBiotechnology and Bioengineering, 2006
AbstractIn this work the question was addressed if in nitrite‐oxidizing activated sludge systems the environmental competition between Nitrobacter spp. and Nitrospira spp., which only recently has been discovered to play a role in these systems, is affected by the nitrite concentrations. Two parallel chemostats were inoculated with nitrifying‐activated
Nogueira, R., Melo, L. F.
openaire   +4 more sources

Biochar‐Based Urea Enhances Yield and Quality of Lady's Finger (Abelmoschus esculentus L.): A Pathway Towards Sustainable Nitrogen Management

open access: yesGCB Bioenergy, Volume 18, Issue 7, July 2026.
Biochar‐coated urea markedly improved growth, yield, nitrogen‐use efficiency, and nutritional quality of lady's finger compared with conventional urea. This biochar‐based slow‐release fertilizer offers a sustainable pathway to reduce nitrogen losses, enhance productivity, and improve economic returns while mitigating environmental degradation ...
Litun Ahmed Labib   +7 more
wiley   +1 more source

Species‐specific processing of fluorescent dissolved organic matter by Caribbean sponges

open access: yesLimnology and Oceanography, Volume 71, Issue 6, June 2026.
Coral reefs are biodiverse and productive ecosystems that are found in typically oligotrophic environments. Many studies have attempted to explain this paradox by demonstrating that microbial symbionts expand metabolic capabilities of host animals.
Jacqueline G. Keleher   +6 more
wiley   +1 more source

Nitrification inhibitor chlorate and nitrogen substrates differentially affect comammox Nitrospira in a grassland soil

open access: yesFrontiers in Microbiology
IntroductionThrough the combined use of two nitrification inhibitors, Dicyandiamide (DCD) and chlorate with nitrogen amendment, this study aimed to investigate the contribution of comammox Nitrospira clade B, ammonia oxidizing bacteria (AOB) and archaea (
Anish S. Shah   +21 more
doaj   +1 more source

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