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

