Results 61 to 70 of about 1,702 (165)

Isotopomeric characterization of nitrous oxide produced by reaction of enzymes extracted from nitrifying and denitrifying bacteria [PDF]

Biogeosciences, 2014
Nitrous oxide (N2O) is a potent greenhouse gas and produced in denitrification and nitrification by various microorganisms. Site preference (SP) of 15N in N2O, which is defined as the difference in the natural abundance of isotopomers 14N15NO and ...
T. Yamazaki, T. Hozuki, K. Arai, S. Toyoda, K. Koba, T. Fujiwara, N. Yoshida   +6 more
doaj   +1 more source

Heterotrophic ammonia oxidation by Alcaligenes balances ROS generation and terminal electron transport

mLife, Volume 4, Issue 5, Page 527-538, October 2025.
Abstract Heterotrophic nitrifiers are bacteria that aerobically oxidize ammonia in the presence of organic carbon sources, which differs from autotrophic nitrifiers that extract energy from ammonia oxidation for cell metabolism and growth. The physiological significance of heterotrophic ammonia oxidation remains unclear, even though this process has ...
Runhua Wang, Xiaokang Wang, Yue Zhao, Xize Zhao, Tong Wu, Yulin Wang, Ruofei Li, Jun Yao, Chengying Jiang, Ji‐Guo Qiu, De‐Feng Li, Shuang‐Jiang Liu   +11 more
wiley   +1 more source

Microbial diversity and function in the rhizosphere microbiome: Driving forces and monitoring approaches

Agrosystems, Geosciences &Environment, Volume 8, Issue 3, September 2025.
Abstract As an ecological unit, the rhizosphere microbiome preserves an enormous and largely unexplored diversity of microbes that play essential roles in plant health and soil functions. Omics technologies encompassing high‐throughput approaches such as metagenomics, metatranscriptomics, and metaproteomics provide helpful tools to unravel the ...
Chinenyenwa Fortune Chukwuneme, Olubukola Oluranti Babalola   +1 more
wiley   +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

Cytochrome aa3 from Nitrosomonas europaea.

Journal of Biological Chemistry, 1986
Cytochrome c oxidase has been purified from the ammonia oxidizing chemoautotroph Nitrosomonas europaea by ion-exchange chromatography in the presence of Triton X-100. The enzyme has absorption maxima at 420 and 592 nm in the resting state and at 444 and 598 nm in the dithionite-reduced form; optical extinction coefficient (598 nm minus 640 nm) = 21.9 ...
A A, Dispirito, J D, Lipscomb, A B, Hooper   +2 more
openaire   +2 more sources

Methanol and Carbon Monoxide Metabolism of the Thermophile Moorella caeni

Environmental Microbiology, Volume 27, Issue 4, April 2025.
An omics approach was used to elucidate the C1 metabolism of Moorella caeni DSM 21394 T, which exhibits acetogenic metabolism on methanol and hydrogenogenic metabolism on CO. Our results suggest that respiratory Complex I serves as the primary respiratory enzyme in methanol‐grown cells.
Nicolas A. Vecchini Santaella, Alfons J. M. Stams, Diana Z. Sousa   +2 more
wiley   +1 more source

Probe Capture Enrichment Sequencing of amoA Genes Improves the Detection of Diverse Ammonia‐Oxidising Archaeal and Bacterial Populations

Molecular Ecology Resources, Volume 25, Issue 3, April 2025.
ABSTRACT The ammonia monooxygenase subunit A (amoA) gene has been used to investigate the phylogenetic diversity, spatial distribution and activity of ammonia‐oxidising archaeal (AOA) and bacterial (AOB), which contribute significantly to the nitrogen cycle in various ecosystems. Amplicon sequencing of amoA is a widely used method; however, it produces
Satoshi Hiraoka, Minoru Ijichi, Hirohiko Takeshima, Yohei Kumagai, Ching‐Chia Yang, Yoko Makabe‐Kobayashi, Hideki Fukuda, Susumu Yoshizawa, Wataru Iwasaki, Kazuhiro Kogure, Takuhei Shiozaki   +10 more
wiley   +1 more source

Engineered small metal‐binding protein tag improves the production of recombinant human growth hormone in the periplasm of Escherichia coli

FEBS Open Bio, 2020
Fusion proteins play an important role in the production of recombinant proteins in Escherichia coli. They are mostly used for cytoplasmic expression since they can be designed to increase the solubility of the target protein, which then can be easily ...
David A. Perez‐Perez, Elizeth Pioquinto‐Avila, Eder Arredondo‐Espinoza, Jose Ruben Morones‐Ramirez, Isaias Balderas‐Renteria, Xristo Zarate   +5 more
doaj   +1 more source

Nitrogen Availability and Changes in Precipitation Alter Microbially Mediated NO and N2O Emissions From a Pinyon–Juniper Dryland

Global Change Biology, Volume 31, Issue 3, March 2025.
ABSTRACT Climate change is altering precipitation regimes that control nitrogen (N) cycling in terrestrial ecosystems. In ecosystems exposed to frequent drought, N can accumulate in soils as they dry, stimulating the emission of both nitric oxide (NO; an air pollutant at high concentrations) and nitrous oxide (N2O; a powerful greenhouse gas) when the ...
Sharon Zhao, Alexander H. Krichels, Elizah Z. Stephens, Anthony D. Calma, Emma L. Aronson, G. Darrel Jenerette, Marko J. Spasojevic, Joshua P. Schimel, Erin J. Hanan, Peter M. Homyak   +9 more
wiley   +1 more source

Effect of Dietary Protein Levels on Growth, Body Composition, and Haematology of Tilapia in Biofloc Without Solid Management System

Aquaculture, Fish and Fisheries, Volume 5, Issue 1, February 2025.
ABSTRACT This study investigated the effects of varying dietary protein levels on the performance of tilapia reared in biofloc culture system without solid management. Five experimental diets containing crude protein (CP) levels of 32, 28, 24, 20, and 16% were tested in a completely randomized design in triplicate.
Sudip Debnath, Md. Shahin Parvez, Sayma Sadia, K. M. Rakibur Hossain, Md. Nazmul Ahsan   +4 more
wiley   +1 more source