Results 51 to 60 of about 6,941 (172)

An RNA-based study of the distribution of ammonia-oxidizing microorganisms in vertical sediment

Ecological Indicators, 2021
Ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) play crucial roles in ammonia nitrogen degradation in freshwater lake sediment.
Tong-tong Liu, Hong Yang
doaj   +1 more source

The oxygen‐sensing FixLJ represses nitrogen fixation in Rhodopseudomonas palustris in response to oxygen

mLife, EarlyView.
Abstract Biological nitrogen fixation in symbiotic diazotrophs is subject to oxygen regulation by an oxygen‐sensing FixLJ two‐component system under micro‐oxic conditions. However, it remains unclear whether this mechanism is conserved in free‐living diazotrophs.
Lingwei Cui, Yan Zeng, Mengmei Wang, Lu Huang, Zheyi Wang, Ying Liu, Yanning Zheng   +6 more
wiley   +1 more source

Environmental factors shaping the ecological niches of ammonia-oxidizing archaea

, 2009
For more than 100 years it was believed that bacteria were the only group responsible for the oxidation of ammonia. However, recently, a new strain of archaea bearing a putative ammonia monooxygenase subunit A (amoA) gene and able to oxidize ammonia was ...
Wittebolle, L., Marzorati, M., Tuba H. Erguder, Verstraete, Willy, Marzorati, Massimo, Bayramoğlu, Tuba Hande, Willy Verstraete, Verstraete, W., Boon, N., Boon, Nico, Nico Boon, Lieven Wittebolle, Erguder, T.H., Massimo Marzorati, Erguder, Tuba H, ERGUDER, TUBA HANDE, Wittebolle, Lieven   +16 more
core   +1 more source

Microbially driven organic carbon cycling at the land−sea interface: Advances and an integrated study framework

mLife, EarlyView.
Abstract The land−sea interface is a vital component of global biogeochemical cycles, where microorganisms drive the cycling of carbon, nitrogen, and sulfur. This review synthesizes the research progress from representative land−sea interfaces to elucidate how the microbial community structure and metabolic function influence the mobilization ...
Quanrui Chen, Kai Tang, Zhili He, Meng Li, Jun Yang, Weidong Zhai, Qiang Zheng, Nianzhi Jiao   +7 more
wiley   +1 more source

Research progress on the physiological metabolic mechanisms and distribution in water treatment systems of ammonia-oxidizing microorganisms

Gongye shui chuli
Nitrification and denitrification processes play crucial roles in biological nitrogen removal in water treatment systems. The ammonia oxidation in nitrification is the rate-limiting process, which converts low-valent ammonia-nitrogen into high-valent ...
GENG Hong, REN Junming, ZHOU Wenming, MENG Han   +3 more
doaj   +1 more source

Benzimidazole Anthelmintic Compounds Albendazole and Fenbendazole Show Distinct Toxicity on the Nitrogen Fixing Bacterium Mesorhizobium loti and Its Symbiosis With Lotus japonicus

Environmental Toxicology, EarlyView.
ABSTRACT Veterinary medicines, which reach the soil mostly through the application of contaminated manures, can affect beneficial soil microorganisms, such as nitrogen‐fixing rhizobia bacteria, which engage in important symbiotic associations with plants.
Polyxeni Gorgia, Stathis Lagos, Christina N. Nikolaou, Nikoleta Basdeki, Christos Papadopoulos, Dimitrios G. Karpouzas, Daniela Tsikou   +6 more
wiley   +1 more source

Ammonia-oxidizing archaea and bacteria are structured by geography [PDF]

, 2013
Introduction Biological soil crusts (BSCs) can dominate surface cover in dry lands worldwide, playing an integral role in arid land biogeochemistry, particularly in N fertilization through fixation and cycling.
Soule, Tanya, Johnson, Shannon L, Garcia-Pichel, Ferran, Bates, Scott T, Anderson, Ian, Marusenko, Yevgeniy   +5 more
core  

Variability of the transporter gene complement in ammonia-oxidizing archaea

, 2014
Ammonia-oxidizing archaea (AOA) are a widespread and abundant component of microbial communities in many different ecosystems. The extent of physiological differences between individual AOA is, however, unknown.
Schleper, Christa, Spang, Anja,, Kerou, Melina, Offre, Pierre   +3 more
core   +1 more source

Introduced dung beetles suppress methane emissions from cattle dung and alter the temporal dynamics of greenhouse gas flux Los escarabajos peloteros introducidos suprimen las emisiones de metano del estiércol de ganado y alteran la dinámica temporal del flujo de gases de efecto invernadero Besouros coprófagos introduzidos suprimem as emissões de metano do esterco bovino e alteram a dinâmica temporal do fluxo de gases de efeito estufa

Ecological Entomology, EarlyView.
Dung beetles suppressed cumulative methane flux from cattle dung by 85% and reduced total greenhouse gas emissions by 18%. Beetle activity accelerated initial CO2 release but did not alter total cumulative flux. N2O and NH3 fluxes were transient and not consistently driven by beetle presence.
Jean Holley, Martin Brummell, Nigel R. Andrew   +2 more
wiley   +1 more source

Ammonia-Oxidizing Archaea Show More Distinct Biogeographic Distribution Patterns than Ammonia-Oxidizing Bacteria across the Black Soil Zone of Northeast China

, 2018
© 2018 Liu, Yu, Yao, Sui, Shi, Chu, Tang, Franks, Jin, Liu and Wang. Black soils (Mollisols) of northeast China are highly productive and agriculturally important for food production.
Xiaobing Liu (522170), Yueyu Sui (2068867), Caixian Tang (9477536), Ashley Franks (9487508), Zhenhua Yu (522169), Jian Jin (4605313), Qin Yao (197683), Haiyan Chu (123641), Guanghua Wang (522171), Junjie Liu (9493178), Yu Shi (117923)   +10 more
core   +1 more source