Results 61 to 70 of about 3,988 (181)

Substrate‐driven enrichment and eDNA metabarcoding reveal indigenous microbiomes in mangrove sediments with potential for ammonia and nitrite transformation

Journal of the World Aquaculture Society, Volume 57, Issue 4, August 2026.
Abstract Effective management of ammonia and nitrite remains a major challenge in intensive shrimp aquaculture, where excessive nitrogen loading compromises water quality and animal health. Indigenous microbial communities inhabiting mangrove sediments are widely considered potential sources of ammonia‐ and nitrite‐transforming microorganisms; however,
Muhamad Amin, Hussein Taha, Norhayati Ahmad, Ledhyane Ika Harlyan, Agustina Agustina, Ren Fitriadi, Supono Supono, Takaomi Arai   +7 more
wiley   +1 more source

Influence of Nanomaterials and Nanocomposites on the Nutrient Composition

Food Safety and Health, Volume 4, Issue 3, Page 600-620, July 2026.
Nanomaterials and nanocomposites enhance crop nutrition and food quality by improving nutrient availability, plant uptake, and bioavailability through controlled delivery and nano‐encapsulation. Their applications in agriculture and food systems enable sustainable biofortification, improved preservation, and functional foods, while emphasizing safety ...
Akanksha Dwivedi, Roohi Yusufi, G. N. Darwhekar, Kuldeep Vinchurkar, Vijay R. Chidrawar   +4 more
wiley   +1 more source

A Novel Polyphosphate‐Degrading Enzyme Confers Growth on Exogenous Polyphosphate in the Archaeon Haloferax volcanii

Environmental Microbiology, Volume 28, Issue 7, July 2026.
A novel polyP‐degrading enzyme with an activity differing from those currently known was found in Haloferax volcanii, conferring the ability for this microbe to grow on extracellular polyP. These findings further our understanding of the potential ecological roles of polyP and how archaea metabolise this essential biopolymer.
Jack W. F. Nicholls, Vincent O'Flaherty, Timothy M. Lenton, John W. McGrath, Jason P. Chin   +4 more
wiley   +1 more source

Diverse Microbial Communities Assemble on Both Recalcitrant and Labile Carbon Sources

Environmental Microbiology, Volume 28, Issue 7, July 2026.
Taxonomically and functionally distinct communities assemble on cellulose and its monomer, glucose. Although single carbon sources were provided, high and comparable diversity was maintained in both environments, supported by extensive cross‐feeding and scavenging. However, glucose supported higher biomass than cellulose and selected generalists, while
Kaumudi H. Prabhakara, Yansong Zhao, Kristian Ullrich, Andrew D. Farr, Paul B. Rainey   +4 more
wiley   +1 more source

Small-scale variation of ammonia oxidisers within intertidal sediments dominated by ammonia-oxidising bacteria Nitrosomonas sp. amoA genes and transcripts

Scientific Reports, 2017
While numerous studies have investigated the abundance of ammonia oxidising bacteria and archaea (AOB/AOA) via the ammonia monooxygenase gene amoA, less is known about their small-scale variation and if amoA gene abundance equates to activity.
Aoife M. Duff, Li-Mei Zhang, Cindy J. Smith   +2 more
doaj   +1 more source

Ammonium and hydroxylamine uptake and accumulation in Nitrosomonas

Microbiology, 2004
Starved cells of Nitrosomonas europaea and further ammonia oxidizers were able to rapidly accumulate ammonium and hydroxylamine to an internal concentration of about 1 and 0·8 M, respectively. In kinetic studies, the uptake/accumulation rates for ammonium [3·1 mmol (g protein)
Schmidt, I., Look, C., Bock, E., Jetten, M.S.M.   +3 more
openaire   +4 more sources

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

Environmental 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, Anna Störiko, Aileen Jung, Daniel Straub, Olaf A. Cirpka, Holger Pagel, Tillmann Lueders   +6 more
wiley   +1 more source

Insights into the Variations of Hao-Dependent Nitrifying and Nir-Dependent Denitrifying Microbial Communities in Ammonium-Graduated Lake Environments

Applied Sciences, 2019
Biological nitrification and denitrification play significant roles in nitrogen-associated biogeochemical cycles. However, our understanding of the spatial scales at which microbial communities act and vary is limited.
Ruojin Zhao, Yinyan Chen, Jin Qu, Peng Jin, Zhanwang Zheng, Zhiwen Cui   +5 more
doaj   +1 more source

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

Environmental 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, Joonas Wasiljeff, Lotta Purkamo, Jenni Hultman, Lukas Kohl, Eero Asmala, Pirjo Yli‐Hemminki, Kirsten S. Jørgensen, Johanna Muurinen, Joonas J. Virtasalo   +9 more
wiley   +1 more source

Evidences towards deciphering the mode of action of dimethylpyrazole-based nitrification inhibitors in soil and pure cultures of Nitrosomonas europaea

Chemical and Biological Technologies in Agriculture, 2022
Background Agriculture relies on the intensive use of synthetic nitrogen (N) fertilizers to maximize crop yields, which has led to the transformation of agricultural soils into high-nitrifying environments.
Adrián Bozal-Leorri, Mario Corrochano-Monsalve, Izargi Vega-Mas, Pedro M. Aparicio-Tejo, Carmen González-Murua, Daniel Marino   +5 more
doaj   +1 more source