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Biology of Acinetobacter baumannii: Pathogenesis, Antibiotic Resistance Mechanisms, and Prospective Treatment Options
Current studies on the virulence factors that contribute to A. baumannii pathogenesis are summarized and Mechanisms of antibiotic resistance of this organism, including acquirement of β-lactamases, up-regulation of multidrug efflux pumps, modification of aminoglycosides, permeability defects, and alteration of target sites are discussed. Expand
A master regulator σB governs osmotic and oxidative response as well as differentiation via a network of sigma factors in Streptomyces coelicolor
The results support a hypothesis that σB serves as a master regulator that triggers other related sigma factors in a cascade, and thus regulates differentiation and osmotic and oxidative response in S. coelicolor. Expand
Bacterial community analysis during fermentation of ten representative kinds of kimchi with barcoded pyrosequencing.
It was found that bacterial communities differed between starter-inoculated and non- inoculated kimchi at the early stages of fermentation, but overall there were no significant differences in the late phases. Expand
Antimicrobial Resistance of Hypervirulent Klebsiella pneumoniae: Epidemiology, Hypervirulence-Associated Determinants, and Resistance Mechanisms
Klebsiella pneumoniae is one of the most clinically relevant species in immunocompromised individuals responsible for community-acquired and nosocomial infections, including pneumonias, urinary tractExpand
Spatial heterogeneity and stability of bacterial community in the gastrointestinal tracts of broiler chickens.
The results suggested that the microbial communities of 7 main segments in the chicken GIT were distinctive according to both individuals and the different segments of GIT, but their stability was maintained along the GIT. Expand
Biotransformation of Malachite Green by the FungusCunninghamella elegans
The filamentous fungus Cunninghamella elegans ATCC 36112 metabolized the triphenylmethane dye malachite green with a first-order rate constant of 0.029 μmol h−1 (mg of cells)−1 to convert to N-demethylated and N-oxidized metabolites, including primary and secondary arylamines. Expand
Purification and characterization of thermostable β-glucosidase from the brown-rot basidiomycete Fomitopsis palustris grown on microcrystalline cellulose
Results revealed that the F. palustris protein can be classified as an aryl-β-glucosidase with cellobiase activity, and has high activity against p-NPG and cellobiose but has very little or no activityagainst p-nitrophenyl- β-lactoside and carboxymethyl cellulose. Expand
Actibacter sediminis gen. nov., sp. nov., a marine bacterium of the family Flavobacteriaceae isolated from tidal flat sediment.
A yellow-pigmented, Gram-negative, aerobic bacterial strain comprising rod-shaped cells devoid of flagellar and gliding motility, designated strain JC2129(T), was isolated from tidal flat sediment ofExpand
Identification of proteins induced by polycyclic aromatic hydrocarbon in Mycobacterium vanbaalenii PYR‐1 using two‐dimensional polyacrylamide gel electrophoresis and de novo sequencing methods
Protein profiles of Mycobacterium vanbaalenii PYR‐1 grown in the presence of high‐molecular‐weight polycyclic aromatic hydrocarbons were examined by two‐dimensional gel electrophoresis and several PAH‐induced proteins were identified. Expand
Escherichia coli ribonuclease III activity is downregulated by osmotic stress: consequences for the degradation of bdm mRNA in biofilm formation
It is discovered that downregulation of the ribonucleolytic activity of RNase III is required for the sustained elevation of RcsB‐induced bdm mRNA levels during osmotic stress and that cells overexpressing bdm form biofilms more efficiently. Expand