Results 21 to 30 of about 13,770 (165)

Stochastic factors drive dynamics of ammonia-oxidizing archaeal and bacterial communities in aquaculture pond sediment

Frontiers in Microbiology, 2022
Ammonia-oxidizing archaea (AOA) and bacteria (AOB) play an important role in nitrification, which is essential in the global nitrogen cycle. However, their dynamics and the underlying community processes in agricultural ecosystems under disturbance ...
Lili Dai, Liqin Yu, Liang Peng, Ling Tao, Yanbin Liu, Gu Li   +5 more
doaj   +1 more source

Long-term enclosure at heavy grazing grassland affects soil nitrification via ammonia-oxidizing bacteria in Inner Mongolia

Scientific Reports, 2022
Enclosure and grazing can significantly change the turnover of nitrogen in grassland soil. Changes of soil nitrogen mineralization and ammonium-oxidizing microorganisms caused by enclosure in different grazing intensities (about 30 years of grazing ...
Qing Chen, Yuntao Shang, Rui Zhu, Qiongli Bao, Shan Lin   +4 more
doaj   +1 more source

Decay processes of AOB in ASM including protozoa grazing [PDF]

E3S Web of Conferences, 2018
Protozoa grazing of nitrifiers is important process in activated sludge process that leads to decrease of mass of active bacteria. In classical models this process is included in decay processes. Such approach makes modelling of influence of protozoa grazing on nitrifiers impossible. In cases when maximization of nitrifiers growth is important (such as
Zięba Bartosz, Janiak Kamil, Kokurewicz Łukasz   +2 more
openaire   +2 more sources

Niche Differentiation of Bacterial Versus Archaeal Soil Nitrifiers Induced by Ammonium Inhibition Along a Management Gradient

Frontiers in Microbiology, 2020
Soil nitrification, mediated mainly by ammonia oxidizing archaea (AOA) and bacteria (AOB), converts ammonium (NH4+) to nitrite (NO2−) and thence nitrate (NO3−).
Di Liang, Di Liang, Yang Ouyang, Lisa Tiemann, G. Philip Robertson, G. Philip Robertson   +5 more
doaj   +1 more source

The meta-analysis and systematic review of prevalence and clinical anatomy of the arc of Buhler

Scientific Reports, 2023
The arc of Buhler (AOB) is a direct anastomosis of the celiac axis and superior mesenteric artery. This paper reviews the literature on the AOB and provides accurate and up-to-date data on its prevalence, anatomy, and clinical significance.
Katarzyna A. Kowalczyk, Jakub Pękala, Michał Kawzowicz, Przemysław A. Pękala, Krzysztof A. Tomaszewski   +4 more
doaj   +1 more source

Changes in Diversity and Abundance of Ammonia-Oxidizing Archaea and Bacteria along a Glacier Retreating Chronosequence in the Tianshan Mountains, China

Microorganisms, 2023
Glaciers retreating due to global warming create important new habitats, particularly suitable for studying ecosystem development where nitrogen is a limiting factor.
Xiukun Wu, Wei Zhang, Guangxiu Liu, Tuo Chen, Zhongqin Li   +4 more
doaj   +1 more source

Ammonia-oxidizing bacterial communities are affected by nitrogen fertilization and grass species in native C4 grassland soils [PDF]

PeerJ, 2021
Background Fertilizer addition can contribute to nitrogen (N) losses from soil by affecting microbial populations responsible for nitrification. However, the effects of N fertilization on ammonia oxidizing bacteria under C4 perennial grasses in nutrient ...
Jialin Hu, Jonathan D. Richwine, Patrick D. Keyser, Lidong Li, Fei Yao, Sindhu Jagadamma, Jennifer M. DeBruyn   +6 more
doaj   +2 more sources

Fertilization altered co-occurrence patterns and microbial assembly process of ammonia-oxidizing microorganisms

Scientific Reports, 2023
Ammonia-oxidizing archaea and bacteria (AOA and AOB, respectively) are important intermediate links in the nitrogen cycle. Apart from the AOA and AOB communities in soil, we further investigated co-occurrence patterns and microbial assembly processes ...
Mingchao Ma, Yubin Zhao, Xin Jiang, Dawei Guan, Ming Yuan, Fengming Cao, Li Li, Jing Zhou, Jianli Ding, Jun Li   +9 more
doaj   +1 more source

Nitrogen and Phosphorus Fertilization Reshapes the Abundance and Structure of Ammonia Oxidizers on a Leymus chinensis Steppe in Northern China

Agronomy, 2022
Although nitrogen (N) and phosphorus (P) fertilization are important for maintaining the health and productivity of Leymus chinensis steppe, their impact on the abundance and community structure of ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing ...
Yan Qin, Wenhui Liu, Feng He, Xianglin Li   +3 more
doaj   +1 more source

Impact of Ultrasonication on African Oil Bean (Pentaclethra macrophylla Benth) Protein Extraction and Properties

Foods, 2023
African oil bean (Pentaclethra macrophylla Benth) is an underutilised edible oil seed that could represent a sustainable protein source. In this study, the impact of ultrasonication on the extraction efficiency and properties of protein from African oil ...
Blessing C. Nwokocha, Afroditi Chatzifragkou, Colette C. Fagan   +2 more
doaj   +1 more source