Results 41 to 50 of about 15,858 (222)

A functional description of CymA, an electron-transfer hub supporting anaerobic respiratory flexibility in Shewanella [PDF]

, 2012
CymA (tetrahaem cytochrome c) is a member of the NapC/NirT family of quinol dehydrogenases. Essential for the anaerobic respiratory flexibility of shewanellae, CymA transfers electrons from menaquinol to various dedicated systems for the reduction of ...
Butt, Julea N., Bye, Jordan, Cheesman, Myles R., Fredrickson, Jim, Jeuken, Lars J. C., Lowe, Thomas G., Marritt, Sophie J., McMillan, Duncan G. G., Richardson, David J., Shi, Liang, Zachara, John   +10 more
core   +1 more source

The effect of hydrology on the distribution of ammonia-oxidizing betaproteobacteria in impounded black mangroves (Avicennia germinans)

Frontiers in Microbiology, 2012
The distribution of species of aerobic chemolitho-autotrophic microorganisms such as the ammonia-oxidizing bacteria will be governed by pH, salinity and temperature as well as by the availability of oxygen, ammonia, carbon dioxide and other inorganic ...
Hendrikus J. eLaanbroek, Hendrikus J. eLaanbroek, Rosalinde M eKeijzer, Jos T.A. eVerhoeven, Dennis F eWhigham   +4 more
doaj   +1 more source

Efficient management of the nitritation-anammox microbiome through intermittent aeration: absence of the NOB guild and expansion and diversity of the NOx reducing guild suggests a highly reticulated nitrogen cycle

Environmental Microbiome, 2022
Obtaining efficient autotrophic ammonia removal (aka partial nitritation-anammox, or PNA) requires a balanced microbiome with abundant aerobic and anaerobic ammonia oxidizing bacteria and scarce nitrite oxidizing bacteria.
Alejandro Palomo, Daniela Azevedo, María Touceda-Suárez, Carlos Domingo-Félez, A. Gizem Mutlu, Arnaud Dechesne, Yulin Wang, Tong Zhang, Barth F. Smets   +8 more
doaj   +1 more source

Eco-toxicological effects of pesticide residues on soil biological sentinels

Journal of Applied Sciences and Environmental Management, 2018
This research studied the eco-toxicological effects of pesticide residues on soil biological sentinels. Nitrobacter and Nitrosomonas sp. was isolated from Soil samples gotten from dumpsite in Benin City and cultured using Winogradsky medium.
E.I. Atuanya, T Onuoha, E Morka
doaj   +2 more sources

Water quality assessment of East Kolkata Wetland with a special focus on bioremediation by nitrifying bacteria

Water Science and Technology, 2021
East Kolkata Wetlands (EKW) is designated as International Ramsar site and are the hotspot for large-scale wastewater aquaculture practices. However, the continued surveillance of physicochemical properties of water and application of an eco-friendly ...
Mousumi Saha, Agniswar Sarkar, Bidyut Bandyopadhyay   +2 more
doaj   +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

Photoinactivation of Ammonia Oxidation in Nitrosomonas [PDF]

Journal of Bacteriology, 1974
Photoinactivation of ammonia oxidation in cells of Nitrosomonas was shown to follow first-order kinetics with a rate constant proportional to incident light intensity. The action spectrum for photoinactivation consisted of a broad peak in the ultraviolet range, where both hydroxylamine and ammonia oxidation were ...
A B, Hooper, K R, Terry
openaire   +2 more sources

Comparative in silico analysis of PCR primers suited for diagnostics and cloning of ammonia monooxygenase genes from ammonia-oxidizing bacteria [PDF]

, 2008
Over recent years, several PCR primers have been described to amplify genes encoding the structural subunits of ammonia monooxygenase (AMO) from ammonia-oxidizing bacteria (AOB).
Aakra, Alzerreca, Balasubramanian, Bothe, Calvo, Chain, Head, Holmes, Hoshino, Hyman, Johannes F. Imhoff, Juretschko, Karl-Paul Witzel, Klotz, Konneke, Kowalchuk, Lieberman, Ludwig, McTavish, Mobarry, Molina, Nicolaisen, Nold, Norton, Ok-Sun Kim, Okano, Petra Limburg, Pilar Junier, Prosser, Purkhold, Purkhold, Rotthauwe, Sinigalliano, Stephen, Thomas Junier, Treusch, Verónica Molina, Wagner, Wagner, Webster   +39 more
core   +1 more source

Growth ofNitrosomonas europaeaon hydroxylamine [PDF]

FEMS Microbiology Letters, 1995
Hydroxylamine is an intermediate in the oxidation of ammonia to nitrite, but until now it has not been possible to grow Nitrosomonas europaea on hydroxylamine. This study demonstrates that cells of N. europaea are capable of growing mixotrophically on ammonia and hydroxylamine. The molar growth yield on hydroxylamine (4.74 g mol−1 at a growth rate of 0.
De Bruijn, P. (author), Van de Graaf, A.A. (author), Jetten, M.S.M. (author), Robertson, L.A. (author), Kuenen, J.G. (author)   +4 more
openaire   +2 more sources

Integration of a pure moving bed biofilm reactor process into a large micro-polluted water treatment plant

Water Science and Technology, 2022
The pure-MBBR process was applied to remove ammonia in a full-scale micro-polluted-water treatment plant with a daily treatment capacity of 260 × 104 m3/d, Guangdong, China.
Wenjie Han, Jiazhong Zhou, Deyang Sheng, Di Wu, Haoran Zhou, Zhongqi Yang, Jianwen Yin, Chao Xia, Yujiao Kan, Junguo He   +9 more
doaj   +1 more source