RovM and CsrA Negatively Regulate Urease Expression in Yersinia pseudotuberculosis
Urease acts as an important acid resistance system and virulence factor that is widespread among microorganisms. RovM is a global regulator that regulates a series of genes and pathways including acid survival systems in the enteric bacterium Yersinia ...
Qingyun Dai +10 more
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Managemental influences on the selective proliferation of two strains of haemolytic Escherichia coli in weaned pigs [PDF]
In an experimental study on a piggery it was found that haemolytic Escherichia coli of O-serotypes 138 or 139 proliferated in the intestinal tracts of pigs following weaning, with E.
Hampson, D.J. +3 more
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The Generation of Successive Unmarked Mutations and Chromosomal Insertion of Heterologous Genes in Actinobacillus pleuropneumoniae Using Natural Transformation [PDF]
We have developed a simple method of generating scarless, unmarked mutations in Actinobacillus pleuropneumoniae by exploiting the ability of this bacterium to undergo natural transformation, and with no need to introduce plasmids encoding recombinases or
A Maas +46 more
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Embryos extract from germinated yellow soybean (Glycine max [L.] Merrill) inhibits promastigotes form of Leishmania amazonensis [PDF]
We investigated the effect of extracts of the germinated seeds of yellow soybean cultivar BRS 258 (Glycine max [L.] Merrill) against Leishmania amazonensis promastigotes. The yellow soybean embryos extract (YSEE) was fractionated on a Sephacryl S-100 gel
P. M. Pedrote +10 more
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Genetic characterization of clinical and environmental Vibrio parahaemolyticus from the Northeast USA reveals emerging resident and non-indigenous pathogen lineages [PDF]
Gastric infections caused by the environmentally transmitted pathogen, Vibrio parahaemolyticus, have increased over the last two decades, including in many parts of the United States (US).
Cooper, Vaughn S. +5 more
core +2 more sources
The article presents the results of assessing the effect of fine irrigation of tea plantations in the foothills of Adygea on the urease activity of soils.
S. V. Dobezhina
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Assessment of agrogenic impact on tea plantation soils by analysis of their enzymatic activity
Brown forest acidic soils of the humid subtropical zone of Russia, on which tea is mainly cultivated, are largely exposed to agrogenic effects, which reduce their bio-productivity.
L. S. Malyukova, D. V. Strukova
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BackgroundTreatment of Helicobacter pylori (H. pylori) infections is challenged by antibiotic resistance. The urease enzyme contributes to H. pylori colonization in the gastric acidic environment by producing a neutral microenvironment.
Hanaa Shaalan +3 more
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Soil bacteria that precipitate calcium carbonate: mechanism and applications of the process
Bacteria with ureasic activity are microorganisms found in soil that in presence of urea and calcium, they can produce calcium carbonate, a process known as microbiologically induced calcium carbonate precipitation (MICP).
Sandra Patricia Chaparro-Acuña +3 more
doaj +1 more source
Phylogenomic study of Burkholderia glathei-like organisms, proposal of 13 novel Burkholderia species and emended descriptions of Burkholderia sordidicola, Burkholderia zhejiangensis, and Burkholderia grimmiae [PDF]
Partial gyrB gene sequence analysis of 17 isolates from human and environmental sources revealed 13 clusters of strains and identified them as Burkholderia glathei Glade (BGC) bacteria.
Cooper, Vaughn S +5 more
core +3 more sources

