Results 111 to 120 of about 61,889 (286)
A Cytoplasmic pH Sensor Redefines Gating in Bacterial Urea Channels and Acid Resistance
Small, EarlyView.Bacterial survival in acidic environments requires pH‐gated urea channels. Utilizing complementary approaches, we identify a conserved cytoplasmic glutamic acid residue as a pH sensor in UreI channels. Whereas Gram‐positive bacteria rely solely on this sensor, Gram‐negative bacteria employ a dual‐sensor mechanism with periplasmic residues, revealing a ...
Anna Stoib +10 more
wiley +1 more source
Innovative ground enhancement by improved microbially induced CaCO3 precipitation technology [PDF]
, 2012 The possibility of using microbiological processes to improve the mechanical properties of soil by undisturbed in-situ application has gained attention over recent years.
Cheng, Liang
core
Smart Molecules, EarlyView.Smart mesoporous silica nanoparticles integrate tunable pore structures, molecular gates, targeting ligands, and stimuli‐responsive components to achieve controlled drug release for precision cancer therapy. This review highlights design principles, therapeutic applications, and future directions in immunotherapy, biodegradability, biosafety, and ...
Majdi Al‐Amili, Lei Lei, Zhu Jin
wiley +1 more source
Preparation and characterization of ?-carrageenan immobilized urease
, 2005 Urease was encapsulated within ?-carrageenan beads. Various parameters, such as amount of ?-carrageenan and enzyme activity, were optimized for the immobilization of urease. Immobilized urease was thoroughly characterized for pH, temperature, and storage
Baysal S.H., Karagöz R.
core +1 more source
Yeast, EarlyView.Isolation of the novel yeast species Hernanozyma buritii sp. nov. from soil and plant in Brazil, followed by phylogenetic characterization and genome analysis, highlighting its relationship with closely related taxa and genomic features associated with mating, pulcherriminic acid biosynthesis, and iron‐dependent pigmentation.
Vitória Petra de O. Barros +11 more
wiley +1 more source
The proposed model for urease maturation.
, 2013 (A) The nickel-charged UreG dimer can form a complex with UreF/UreH and urease. It is anticipated that complex formation induces conformational changes in urease. After formation of the preactivation complex, bicarbonate stimulates the GTPase activity of
Kam-Bo Wong (28485) +5 more
core +1 more source
Yeast, EarlyView.Four novel yeast species are described associated with larvae of the ground‐nesting solitary bee Epicharis bicolor in Brazil. These yeasts are described based on sequencing of the ITS‐5.8S region and D1/D2 domains of the large subunit of the rRNA gene and phylogenomic analyses.
Ana Raquel O. Santos +12 more
wiley +1 more source
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Understanding whether land use intensification causes regime shifts (i.e. persistent, large changes in ecosystem states) is of key importance for management, particularly if these shifts occur abruptly as thresholds in land use intensity are crossed.
Hugo Saiz +40 more
wiley +1 more source
Herbivore and mesocarnivore carcasses trigger divergent short‐term changes in soil properties
Journal of Animal Ecology, EarlyView.Scavengers reshape nutrient cycles in soils under carrion. Compared to herbivore carcasses, smaller but longer‐lasting carnivore remains boost nutrient levels and microbial activity in dry soils. Abstract Animal corpses act as pulses of organic matter (OM) and serve a key zoogeochemical role by providing localized nutrient inputs to soils and thereby ...
Adrián Colino‐Barea +15 more
wiley +1 more source
Molecular analysis of the bvg-repressed urease of Bordetella bronchiseptica
, 1996 Bordetella bronchiseptica is a ureolytic mammalian respiratory pathogen. We have investigated the regulation of urease in B. bronchiseptica and the potential role of this enzyme in eukaryotic invasion and intracellular survival.
Guzman, CA +4 more
core +1 more source