Results 41 to 50 of about 23,282 (244)

The ecological dichotomy of ammonia-oxidizing archaea and bacteria in the hyper-arid soils of the Antarctic Dry Valleys

, 2014
The McMurdo Dry Valleys of Antarctica are considered to be one of the most physically and chemically extreme terrestrial environments on the Earth. However, little is known about the organisms involved in nitrogen transformations in these environments ...
Charles K. Lee, Catarina M. Magalhães, Frank-Fahle, Béatrice, Machado, Anna, Magalhães, Catarina M., S. Craig Cary, Lee, Charles Kai-Wu, Catarina Maria Magalhães, Cary, S. Craig, Craig S. Cary, Béatrice Frank-Fahle, Ana Machado, Ana eMachado, Béatrice eFrank-Fahle   +13 more
core   +1 more source

Selective isolation of ammonia-oxidizing bacteria from autotrophic nitrifying granules by applying cell-sorting and sub-culturing of microcolonies

Frontiers in Microbiology, 2015
Nitrification is a key process in the biogeochemical nitrogen cycle and biological wastewater treatment that consists of two stepwise reactions, ammonia oxidation by ammonia-oxidizing bacteria (AOB) or archaea followed by nitrite oxidation by nitrite ...
Hirotsugu eFujitani, Asami eKumagai, Norisuke eUshiki, Kengo eMomiuchi, Satoshi eTsuneda   +4 more
doaj   +1 more source

Comparison of Novel and Established Nitrification Inhibitors Relevant to Agriculture on Soil Ammonia- and Nitrite-Oxidizing Isolates

Frontiers in Microbiology, 2020
Nitrification inhibitors (NIs) applied to soil reduce nitrogen fertilizer losses from agro-ecosystems. NIs that are currently registered for use in agriculture appear to selectively inhibit ammonia-oxidizing bacteria (AOB), while their impact on other ...
Evangelia S. Papadopoulou, Eleftheria Bachtsevani, Eleni Lampronikou, Eleni Adamou, Afroditi Katsaouni, Sotirios Vasileiadis, Cécile Thion, Urania Menkissoglu-Spiroudi, Graeme W. Nicol, Dimitrios G. Karpouzas   +9 more
doaj   +1 more source

Enrichment of denitrifying methane-oxidizing microorganisms using up-flow continuous reactors and batch cultures. [PDF]

PLoS ONE, 2014
Denitrifying anaerobic methane oxidizing (DAMO) microorganisms were enriched from paddy field soils using continuous-flow and batch cultures fed with nitrate or nitrite as a sole electron acceptor. After several months of cultivation, the continuous-flow
Masashi Hatamoto, Masafumi Kimura, Takafumi Sato, Masato Koizumi, Masanobu Takahashi, Shuji Kawakami, Nobuo Araki, Takashi Yamaguchi   +7 more
doaj   +1 more source

Nitrite improved nitrification efficiency and enriched ammonia-oxidizing archaea and bacteria in the simultaneous nitrification and denitrification process

Water Research X, 2023
Simultaneous nitrification and denitrification (SND) is effective and energy-saving for wastewater treatment. As an inevitable intermediate product in the SND process, nitrite affects the efficiency of ammonia oxidation and the composition of nitrifiers.
Yu Xiang, Tengzhi Zhou, Siping Deng, Zhiyu Shao, Yiwen Liu, Qiang He, Hongxiang Chai   +6 more
doaj   +1 more source

Synergy between Nitrogen Removal and Fermentation Bacteria Ensured Efficient Nitrogen Removal of a Mainstream Anammox System at Low Temperatures

Toxics
Simultaneous partial nitrification, anammox, denitrification, and fermentation (SNADF) is a novel process achieving simultaneous advanced sludge reduction and nitrogen removal.
Jiaru Zhi, Guocheng Ma, Xueqing Shi, Guoqing Dong, Deshuang Yu, Jianhua Zhang, Yu Zhang, Jiawen Li, Xinchao Zhao, Haizheng Xia, Xinyu Chen, Zhuoya Tian, Yuanyuan Miao   +12 more
doaj   +1 more source

Investigating the Chemolithoautotrophic and Formate Metabolism of Nitrospira moscoviensis by Constraint-Based Metabolic Modeling and 13C-Tracer Analysis

mSystems, 2021
Nitrite-oxidizing bacteria belonging to the genus Nitrospira mediate a key step in nitrification and play important roles in the biogeochemical nitrogen cycle and wastewater treatment.
Christopher E. Lawson, Aniela B. Mundinger, Hanna Koch, Tyler B. Jacobson, Coty A. Weathersby, Mike S. M. Jetten, Martin Pabst, Daniel Amador-Noguez, Daniel R. Noguera, Katherine McMahon, Sebastian Lücker   +10 more
doaj   +1 more source

Microbial Nitrogen Metabolism in Chloraminated Drinking Water Reservoirs

mSphere, 2020
Ammonia availability due to chloramination can promote the growth of nitrifying organisms, which can deplete chloramine residuals and result in operational problems for drinking water utilities.
Sarah C. Potgieter, Zihan Dai, Stephanus N. Venter, Makhosazana Sigudu, Ameet J. Pinto   +4 more
doaj   +1 more source

Relevance and diversity of Nitrospira populations in biofilters of brackish RAS. [PDF]

PLoS ONE, 2013
Lithoautotrophic nitrite-oxidizing bacterial populations from moving-bed biofilters of brackish recirculation aquaculture systems (RAS; shrimp and barramundi) were tested for their metabolic activity and phylogenetic diversity.
Myriam Kruse, Sabine Keuter, Evert Bakker, Eva Spieck, Till Eggers, André Lipski   +5 more
doaj   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source