Results 71 to 80 of about 6,819 (210)

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

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

Estimation of Numbers of Nitrosomonas in Soil and Culture

Nature, 1956
ATTEMPTS to estimate the numbers of nitrifying organisms in soil have usually been made by some form of dilution technique involving culture of the dilutions in liquid media in tubes (see ref. 1). The number of dilutions, and of replicate tubes at each dilution, that are necessary to give reliable estimates, makes this method extravagant of material ...
openaire   +2 more sources

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

Changes in community composition of ammonia-oxidizing betaproteobacteria from stands of Black mangrove (Avicennia germinans) in response to ammonia enrichment and more oxic conditions

Frontiers in Microbiology, 2013
In flooded and non-flooded impounded forests of Black mangrove (Avicennia germinans), the community structure of the ammonia-oxidizing betaproteobacteria (β-AOB) differed among distinct mangrove vegetation cover types and hydrological regimes.
Hendrikus J. Laanbroek, Hendrikus J. Laanbroek, Hendrikus J. Laanbroek, Roos M. Keijzer, Jos T.A. Verhoeven, Jos T.A. Verhoeven, Dennis F Whigham   +6 more
doaj   +1 more source

Transcriptomic Response of Nitrosomonas europaea Transitioned from Ammonia- to Oxygen-Limited Steady-State Growth

mSystems, 2020
Ammonia-oxidizing microorganisms perform the first step of nitrification, the oxidation of ammonia to nitrite. The bacterium Nitrosomonas europaea is the best-characterized ammonia oxidizer to date. Exposure to hypoxic conditions has a profound effect on
Christopher J. Sedlacek, Andrew T. Giguere, Michael D. Dobie, Brett L. Mellbye, Rebecca V. Ferrell, Dagmar Woebken, Luis A. Sayavedra-Soto, Peter J. Bottomley, Holger Daims, Michael Wagner, Petra Pjevac   +10 more
doaj   +1 more source

Structure of the Nitrosomonas europaea Rh protein [PDF]

Proceedings of the National Academy of Sciences, 2007
Amt/MEP/Rh proteins are a family of integral membrane proteins implicated in the transport of NH 3 , CH 2 NH 2 , and CO 2 .
Xin, Li, Sanjay, Jayachandran, Hiep-Hoa T, Nguyen, Michael K, Chan   +3 more
openaire   +2 more sources

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

Characterization of acid-tolerant ammonia-oxidizing Nitrosospira bacteria suggests wide implementation of the acidic nitritation process

Water Research X
Acidic activated sludge process has been recently developed for the suppression of nitrite-oxidizing bacteria, addressing the bottleneck in achieving robust partial nitritation (PN) for low-strength ammonia wastewater treatment.
Zhetai Hu, Xiaotong Cen, Zhiyao Wang, Min Zheng   +3 more
doaj   +1 more source