Results 91 to 100 of about 12,786 (254)

Genomic Heterogeneity of the Genus Nitrobacter [PDF]

International Journal of Systematic Bacteriology, 1992
The genomic diversity among 22 Nitrobacter strains was investigated by determining rRNA gene restriction patterns, DNA hybridization characteristics, and DNA base compositions. The guanine-plus-cytosine contents of the DNAs ranged from 58 to 61 mol%. As determined by DNA hybridization (S1 nuclease method), five DNA genomic groups were differentiated ...
E. Navarro, M. P. Fernandez, F. Grimont, A. Clays-Josserand, R. Bardin   +4 more
openaire   +1 more source

Are There Potential Benefits From Using Microbial Products to Control Ammonia and Greenhouse Gases Released From Pig Slurry?

Journal of Sustainable Agriculture and Environment, Volume 4, Issue 2, June 2025.
ABSTRACT Livestock farming and its slurry management represent a significant contributor to global anthropogenic ammonia (NH3) and greenhouse gas (GHG) emissions, resulting in negative impacts on the environment. The aim of this study was to evaluate the effect of two microbial slurry additives (A1, A2) on the emissions of NH3, methane (CH4) and carbon
Marianna Magyar, Márton Dencső, Anita Szabó, Eszter Tóth   +3 more
wiley   +1 more source

Glycine-Cytochrome c Reductase from Nitrobacter agilis

Journal of Biological Chemistry, 1972
Abstract An enzyme, designated glycine-cytochrome c reductase, catalyzing the reduction of cytochrome c in the presence of glycine, and apparently unlike other known enzymes catalyzing the oxidation of glycine, has been purified from the chemoautotrophic bacterium Nitrobacter agilis.
H K, Sanders, G E, Becker, A, Nason
openaire   +2 more sources

Cobalt-dependent inhibition of nitrite oxidation in Nitrobacter winogradskyi.

Journal of Bioscience and Bioengineering, 2019
Nitrobacter winogradskyi is an abundant, intensively studied autotrophic nitrite-oxidizing bacterium, which is frequently used as a model strain in the two-step nitrification of ammonia (NH3) to nitrate (NO3-) via nitrite (NO2-), either in activated ...
R. Metzner, Taiji Nomura, Naoki Kitaoka, A. Ando, J. Ogawa, Y. Kato   +5 more
semanticscholar   +1 more source

Recent Advances in Aquaponic Systems: A Critical Review

Reviews in Aquaculture, Volume 17, Issue 3, June 2025.
This article critically examines recent advances in aquaponic systems, identifies knowledge gaps, and proposes future research directions to enhance system performance, economic viability, and environmental sustainability. ABSTRACT Aquaponics, a symbiotic farming of plants and fish, is a promising solution to address global food security.
Shreeja Lopchan Lama, Kyle Rafael Marcelino, Sumeth Wongkiew, K. C. Surendra, Zhen Hu, Jae Woo Lee, Samir Kumar Khanal   +6 more
wiley   +1 more source

Natural Food Web in Farm Scale Models in Fish Aquaculture

Reviews in Aquaculture, Volume 17, Issue 3, June 2025.
ABSTRACT Bacteria and phytoplankton play an essential role in processing organic and inorganic waste nutrients, making the nutrients reutilized by higher trophic levels in an aquatic food web. Understanding the complex interaction between the microbial food web, nutrients, and cultured animals is crucial to achieving optimum production while minimizing
Nurhayati Br Tarigan, Marc Verdegem, Julie Ekasari, Karel J. Keesman   +3 more
wiley   +1 more source

Draft Genome Sequence of Nitrobacter vulgaris Strain Ab1, a Nitrite-Oxidizing Bacterium

Genome Announcements, 2017
Here, we present the 3.9-Mb draft genome sequence of Nitrobacter vulgaris strain Ab1, which was isolated from a sewage system in Hamburg, Germany. The analysis of its genome sequence will contribute to our knowledge of nitrite-oxidizing bacteria and acyl-
Brett L. Mellbye, Edward W. Davis, E. Spieck, Jeff H. Chang, P. Bottomley, L. Sayavedra-Soto   +5 more
semanticscholar   +1 more source

Quorum Quenching of Nitrobacter winogradskyi Suggests that Quorum Sensing Regulates Fluxes of Nitrogen Oxide(s) during Nitrification

mBio, 2016
Quorum sensing (QS) is a widespread process in bacteria used to coordinate gene expression with cell density, diffusion dynamics, and spatial distribution through the production of diffusible chemical signals.
Brett L. Mellbye, Andrew T Giguere, P. Bottomley, L. Sayavedra-Soto   +3 more
semanticscholar   +1 more source

Community‐Level Metabolic Shifts Following Land Use Change in the Amazon Rainforest Identified by a Supervised Machine Leaning Approach

Environmental Microbiology Reports, Volume 17, Issue 2, April 2025.
A machine learning (ML)‐derived metagenomic analysis of soils collected from Amazon forests and long‐term established pastures showed different microbial community strategies towards carbohydrate metabolism and energy allocation. The ML approach allowed the development of metabolic maps that explained process‐level modifications to the C and N ...
Md Abdul Wadud Khan, Brendan J. M. Bohannan, Kyle M. Meyer, Ann M. Womack, Klaus Nüsslein, James P. Grover, Jorge L. Mazza Rodrigues   +6 more
wiley   +1 more source

Determination of the activity of nitrifying bacteria in surface waters by a modified BOD-test. [Translation from: Zentbl.Bakt.Parasitkde 156(1) 414-421, 1972. ] [PDF]

, 1974
A modified method of the Biochemical oxygen demand (BOD)test was applied in order to find out the seasonal changing activity of the nitrifying bacteria in surface waters.
Kaffka, A., Roch, K.
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