AIM To define the clinical and microbiological profile of bacterial keratitis at the Jules Gonin Eye Hospital and to test the in vitro bacterial resistance. METHODS Patients presenting with bacterial keratitis were prospectively followed; clinical features (age, risk factors, visual acuity) and response to therapy were analysed. Bacteriological profile was determined and the sensitivity/resis...

Bactericidal antibiotics are known to induce bacterial cell death through the production of reactive oxygen species, which can be neutralized by bacterial oxidative stress control proteins such as catalases. In Escherichia coli, the katE gene encoding catalase is induced by the stringent response pathway. Stringent response is often activated under nutrient and amino acid starvation such as iso...

Diamondback moth (DBM), Plutella xylostella (Linnaeus), is a notorious pest of brassica crops worldwide and is resistant to all groups of insecticides. The insect system harbors diverse groups of microbiota, which in turn helps in enzymatic degradation of xenobiotic-like insecticides. The present study aimed to determine the diversity of gut microflora in DBM, quantify esterase activity and elu...

pantoea ananatis is an important pathogen causing bacterial center rot in onion. isolated strains from onion soft rot bulbs based on morphological characteristics were tested for hypersensitivity reaction on tobacco. pathogenic strains underwent some biochemical tests which detected the presence of p. ananatis, based on rna16s sequencing, this result was confirmed. symptoms were reproduced by i...

Two bacterial strains phylogenetically identified as Pseudomonas aeruginosa strains RM1 and SK1 displayed extensive degradation ability on waste engine oil (SAE 40W) in batch cultures. Spectrophotometric analysis revealed the presence of various heavy metals such as lead, chromium and nickel in the waste engine oil. The rate of degradation of waste engine oil by the isolates, for the first 12 d...

In an effort to better understand genetic and cellular factors that influence innate immunity, we examined host and bacterial factors involved in the nonopsonic phagocytosis and killing of Escherichia coli K-12 by mouse macrophages. Unelicited (resident) peritoneal macrophages from five different mouse strains, BALB/c, C57BL/6, CD-1, C3H/HeJ, and C3H/HeN, were employed. Additional macrophage po...

conclusions these results show the usefulness of proteome analysis in successful identification of the common proteins between n. lactamica strains and nmb. this proteomics analysis is the starting point in the path of knowledge development about whole proteome profiles of n. lactamica strains. objectives the main aims of this study were to determine whole proteome profiles of n. lactamica stra...

Four bacterial species are known to catalyze ice formation at temperatures just below 0 degrees C. To better understand the relationship between the molecular structure of bacterial ice-nucleation site(s) and the quantitative and qualitative features of the ice-nucleation-active phenotype, we determined by gamma-radiation analysis the in situ size of ice-nucleation sites in strains of Pseudomon...

The aim of this cross-sectional study was to investigate the occurrence bacteremia in severe mastitis cases dairy cows. Milk and corresponding blood samples 77 were bacteriologically examined. All (milk blood) incubated aerobically anaerobically also role obligate anaerobic microorganisms addition aerobic mastitis. Bacteremia occurred if identical bacterial strains isolated from milk same case....