Results 251 to 260 of about 48,302 (297)

Molecular structure and nickel‐binding capacity of Proteus mirabilis UreE

Acta Crystallographica Section D, Volume 82, Issue 4, Page 348-357, April 2026.
This study presents a 2.0 Å resolution crystal structure and determined the nickel‐binding capacity of the P. mirabilis nickel chaperone UreE. UreE is essential for the delivery of nickel to the metalloenzyme urease, which is key for the ability of P. mirabilis to cause urinary‐tract infections.UreE is a nickel chaperone that is required for the safe ...
Jiayi Pan, Sarah L. Mueller, Nuren Tasneem, Yang Wu, Emily J. Furlong   +4 more
wiley   +1 more source

Cultivation‐Based Detection of a Novel High‐GC Nitrospira Derived From the Argentinian Copahue Volcano Area

Environmental Microbiology, Volume 28, Issue 4, April 2026.
In this cultivation‐based study, two novel moderately thermophilic Nitrospira enrichments were obtained from the geothermal field Las Máquinas in the Neuquén Province, Argentina. Both nitrite oxidizers, belonging to lineage V or the novel taxonomic lineage VIII, contain quorum‐sensing genes and a high genome GC content of 60.6% and 69.4%.
Eva Spieck, Hanna Koch, Linnea F. M. Kop, Sabine Keuter, Marcel Malinowski, Katharina Sass, Wolfgang Sand, Edgardo Donati, Pablo Perez Garcia, Sebastian Lücker, Alejandra Giaveno   +10 more
wiley   +1 more source

Factors Influencing Undesirable Sensory Properties in Protein Hydrolysates and Remediation Strategies for Food Applications

Journal of Food Science, Volume 91, Issue 4, April 2026.
ABSTRACT Enzymatic hydrolysis is used to produce protein hydrolysates from animal‐ and plant‐based sources, which are widely utilized in industry due to their nutritional, functional, and bioactive properties. However, these hydrolysates can exhibit unattractive sensory properties, such as off‐flavors or off‐odors, which limit their use in food ...
Tejaswini R. B. Ramakrishna, Tone Aspevik, Birthe Vang, Kjersti Lian, Charlotte Jacobsen, Volha Shapaval, Pål Puntervoll, Gro E. K. Bjerga   +7 more
wiley   +1 more source

Impact of Fire and Heat Stress on Soil Microorganisms: A Review of Community Changes, Molecular Responses and Plant‐Beneficial Roles

Environmental Microbiology Reports, Volume 18, Issue 2, April 2026.
This work reviewed the direct and indirect effects of fires on microbial communities and the resilience strategies microbes use to withstand high temperatures . ABSTRACT Fire, whether occurring on the surface or underground, significantly influences soil microbial dynamics by reshaping community composition, functional diversity and overall soil and ...
Ma. del Carmen Orozco‐Mosqueda, Aurora Flores‐Piña, Ajay Kumar, Fannie I. Parra‐Cota, Sergio de los Santos‐Villalobos, Debasis Mitra, Olubukola Oluranti Babalola, Gustavo Santoyo   +7 more
wiley   +1 more source

Niche adaptation of particle-associated ammonia-oxidizing archaea sustains nitrification under marine deoxygenation. [PDF]

Front Microbiol
Li L, Zhao D, Du R, Tang K, Zhang Y.
europepmc   +1 more source

Differences in Prokaryotic Community Composition Between Two Climatically Contrasting Years in an Arctic Fjord Ecosystem

Environmental Microbiology Reports, Volume 18, Issue 2, April 2026.
Seasonal dynamics of prokaryotic communities in Kongsfjorden were driven by contrasting hydrographic conditions in 2019 and 2020. Atlantification enhanced prokaryotic diversity and interactions in 2019, while sea ice and glacial runoff in 2020 reduced surface diversity and network complexity, underscoring Arctic prokaryotic sensitivity to environmental
Eva Lopes, Miguel Semedo, Allison Bailey, Philipp Assmy, Catarina Magalhães   +4 more
wiley   +1 more source

Molecular Mechanisms of Algicidal Bacteria in Controlling Harmful Algal Blooms: Advances in Bacteria‐Algae Interactions

Environmental Microbiology Reports, Volume 18, Issue 2, April 2026.
This review elucidates the molecular mechanisms of algicidal bacteria, highlighting critical behaviours like chemotaxis, quorum sensing and extracellular vesicle release. It details how these actions disrupt algal cellular integrity, photosynthesis and calcium homeostasis, providing a theoretical foundation for controlling harmful algal blooms ...
Jiaxin Wang, Binfu Xu, Lixing Huang
wiley   +1 more source

Copper requirements and copper toxicity as niche-defining factors in the growth of terrestrial ammonia-oxidizing archaea and bacteria. [PDF]

FEMS Microbiol Ecol
Oudova-Rivera B, Crombie AT, Murrell JC, Lehtovirta-Morley LE.   +3 more
europepmc   +1 more source

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The inhibitory effects of free ammonia on ammonia oxidizing bacteria and nitrite oxidizing bacteria under anaerobic condition

Bioresource Technology, 2017
The free ammonia (FA) inhibition on ammonia oxidizing bacteria (AOB) and nitrite oxidizing bacteria (NOB) under anaerobic condition was investigated in this study. The results indicated that NOB was more sensitive to the FA anaerobic treatment than AOB. The FA anaerobic inhibition on nitrifier gradually heightened with the increase of FA concentration.
Wenting, Qian, Yongzhen, Peng, Xiyao, Li, Qiong, Zhang, Bin, Ma   +4 more
openaire   +4 more sources

Ammonia-Oxidizing Bacteria: A Model for Molecular Microbial Ecology

Annual Review of Microbiology, 2001
▪ Abstract  The eutrophication of many ecosystems in recent decades has led to an increased interest in the ecology of nitrogen transformation. Chemolitho-autotrophic ammonia-oxidizing bacteria are responsible for the rate-limiting step of nitrification in a wide variety of environments, making them important in the global cycling of nitrogen.
Kowalchuk, G.A., Stephen, J.R.
openaire   +4 more sources