Results 31 to 40 of about 213 (130)

Effects of nitrogen fertilizers on the bacterial community diversity and the weathering of purple mudstone in Southwest China

Frontiers in Microbiology, 2023
IntroductionRock weathering is crucial in the development of soil. Yet the role of bacteria in the fine particle-forming process of purple mudstone is not fully understood, especially under nitrogen fertilization.MethodsIn this study, the particles (0.25 
Chunpei Li, Maopan Fan, Xuan Wang, Xuan Wang, Xue Li, Guang Zhao, Gangcai Liu, Jixia Zhao   +7 more
doaj   +1 more source

Genomic Heterogeneity of the Genus Nitrobacter [PDF]

International Journal of Systematic Bacteriology, 1992
The genomic diversity among 22 Nitrobacter strains was investigated by determining rRNA gene restriction patterns, DNA hybridization characteristics, and DNA base compositions. The guanine-plus-cytosine contents of the DNAs ranged from 58 to 61 mol%. As determined by DNA hybridization (S1 nuclease method), five DNA genomic groups were differentiated ...
E. Navarro, M. P. Fernandez, F. Grimont, A. Clays-Josserand, R. Bardin   +4 more
openaire   +1 more source

Enrichment and identification of a moderately acidophilic nitrite-oxidizing bacterium

Water Research X
This study enriched a novel nitrite-oxidizing bacterium (NOB, ‘Candidatus Nitrobacter acidophilus’) in a laboratory reactor operating at pH 4.5 for treating low-strength ammonia wastewater. Batch experiments showed that ‘Ca. N.
Jun Xia, Zicheng Su, Chen Cai, Tao Liu, Zhiguo Yuan, Min Zheng   +5 more
doaj   +1 more source

Innovative Field Applications of Probiotics, Prebiotics, and Medicinal Plant Products for Disease Control in Aquaculture

Journal of Fish Diseases, EarlyView.
ABSTRACT Disease outbreaks and the associated reliance on antibiotics pose major constraints to the sustainability of modern aquaculture. As regulatory pressures increase and consumer demand shifts toward residue‐free production, diverse biological interventions are gaining prominence as viable alternatives to chemotherapeutics.
Mustafa Öz, Enes Üstüner, Sümmani Çifci, Suat Dikel, Emin İleri, Furkan Budak   +5 more
wiley   +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

Long-term Effects of Ni(II), Co(II) and Zn(II) Limitation on the Nitrite-oxidation Activity in Continuous Tests Using PVA Gel Carriers

Journal of Water and Environment Technology
Nitrite-oxidizing bacteria (NOB) can be inhibited by high concentrations of heavy metals; however, trace elements (TE) are critical for their growth and sustained activity.
Ryo Hamabe, Yayoi Saito, Takashi Kondo, Mohamed Sheikh Mohamed, Iori Mishima, Kazuichi Isaka   +5 more
doaj   +1 more source

Coexistence of nitrifying, anammox and denitrifying bacteria in a sequencing batch reactor

Frontiers in Microbiology, 2014
Elevated nitrogen removal efficiencies from ammonium-rich wastewaters have been demonstrated by several applications, that combine nitritation and anammox processes. Denitrification will occur simultaneously when organic carbon is also present.
Michela eLangone, Jia eYan, Jia eYan, Suzanne Caroline Marianne Haaijer, Huub J.M. Op Den Camp, Mike eJetten, Gianni eAndreottola   +6 more
doaj   +1 more source

RNA extraction protocol from low-biomass bacterial Nitrosomonas europaea and Nitrobacter winogradskyi cultures for whole transcriptome studies

STAR Protocols, 2023
Summary: RNA-sequencing for whole transcriptome analysis requires high-quality RNA in adequate amounts, which can be difficult to generate with low-biomass-producing bacteria where sample volume is limited.
Tom Verbeelen, Rob Van Houdt, Natalie Leys, Ramon Ganigué, Felice Mastroleo   +4 more
doaj   +1 more source

Tillage does not impact soil greenhouse gas emissions in a Central Texas rainfed maize–cotton system

Agrosystems, Geosciences &Environment, Volume 9, Issue 3, September 2026.
Abstract Agricultural soils are a significant source of greenhouse gas (GHG) emissions, primarily as N2O. Monitoring how management practices impact soil gas fluxes (CO2, CH4, and N2O) is useful for making sure conservation practices (e.g., no‐till) are sustainable with regards to all potential environmental impacts.
Dorothy Menefee, Hal Collins, Doug Smith
wiley   +1 more source

Toxic Response of Nitrobacter to Orange II and Direct Blue 71

Journal of Applied Sciences and Environmental Management, 2004
Tolerance of Nitrobacter to Orange II (C.L. 15510) and Direct Blue 71 (C.I. 34140) dyes was determined by total viable count. There was decrease in percentage log survival with increase in concentration of the toxicants and increase in exposure time ...
N A ORANUSI, J C OGEGBUE
doaj   +1 more source